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Wang Z, Chen T, Yang L, Chapman CA, Fan P. Effects of protected area coverage and research on conservation status of primates globally. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024:e14311. [PMID: 38853694 DOI: 10.1111/cobi.14311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/10/2024] [Accepted: 04/22/2024] [Indexed: 06/11/2024]
Abstract
Conducting conservation research and establishing protected areas (PAs) based on research results are critical to biodiversity conservation. However, the effect of research and PAs on conservation of threatened species has rarely been evaluated simultaneously. We collected data on PAs from 2000 for 2021 and determined the number of publications on global primates (published from 1950 to 2021) to assess the effect of PAs, research, and biological and socioeconomic factors on the current International Union for Conservation of Nature endangered status and change in status. We used the MCMCglmm package to conduct a phylogenetic comparative analysis to control the phylogenetic relationship of primate species. The status of 24.6% (82 of 333) of species assessed at least twice declined. Only the black lion tamarin (Leontopithecus chrysopygus) had an improved status. Species with status declines mostly occurred on the south coast of West Africa and in Madagascar. PAs covered 22.1% of each species' range. Forest loss in PAs (5.5%) was significantly lower than forest loss within 5 km outside PAs (13.8%), suggesting PAs effectively mitigated forest loss. Both the median number of total publications and conservation publications on critically endangered species were higher than those of other categories. Models showed that PA coverage and number of publications or conservation-focused publications were not related to current status or change in status over time. A decline in status was not related to creation of PAs or increase of research since the last assessment. Our results suggest that current PAs and research are not reversing the extinction crisis of global primates. Doing more conservation-oriented research, strengthening management of current PAs, and expanding PAs will be needed to protect primates globally.
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Affiliation(s)
- Zhining Wang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Tao Chen
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Li Yang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Colin A Chapman
- Woodrow Wilson International Center for Scholars, Washington, District of Columbia, USA
- Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada
- School of Life Sciences, University of KwaZulu-Natal, KwaZulu-Natal, South Africa
- The College of Life Sciences, Northwest University, Xi'an, China
| | - Pengfei Fan
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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2
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Han Q, Li M, Keeffe G. Can large-scale tree planting in China compensate for the loss of climate connectivity due to deforestation? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172350. [PMID: 38608907 DOI: 10.1016/j.scitotenv.2024.172350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
Extensive deforestation has been a major reason for the loss of forest connectivity, impeding species range shifts under current climate change. Over the past decades, the Chinese government launched a series of afforestation and reforestation projects to increase forest cover, yet whether the new forests can compensate for the loss of connectivity due to deforestation-and where future tree planting would be most effective-remains largely unknown. Here, we evaluate changes in climate connectivity across China's forests between 2015 and 2019. We find that China's large-scale tree planting alleviated the negative impacts of forest loss on climate connectivity, improving the extent and probability of climate connectivity by 0-0.2 °C and 0-0.03, respectively. The improvements were particularly obvious for species with short dispersal distances (i.e., 3 km and 10 km). Nevertheless, only ~55 % of the trees planted in this period could serve as stepping stones for species movement. This indicates that focusing solely on the quantitative target of forest coverage without considering the connectivity of forests may miss opportunities in tree planting to facilitate climate-induced range shifts. More attention should be paid to the spatial arrangement of tree plantations and their potential as stepping stones. We then identify priority areas for future tree planting to create effective stepping stones. Our study highlights the potential of large-scale tree planting to facilitate range shifts. Future tree-planting efforts should incorporate the need for species range shifts to achieve more biodiversity conservation benefits under climate change.
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Affiliation(s)
- Qiyao Han
- Department of Landscape Architecture, Nanjing Agricultural University, China.
| | - Ming Li
- Institute of Geodesy and Photogrammetry, ETH Zurich, Switzerland
| | - Greg Keeffe
- School of Natural and Built Environment, Queen's University Belfast, UK
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3
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Liu F, Yu X, Che X, Zhang Q, Grossi AA, Zhang M, Wang Z, Zou F. Patterns and processes underlying understory songbird communities in southern China. Ecol Evol 2024; 14:e11446. [PMID: 38846706 PMCID: PMC11154815 DOI: 10.1002/ece3.11446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 05/01/2024] [Accepted: 05/07/2024] [Indexed: 06/09/2024] Open
Abstract
Understory bird communities, especially those comprising insectivores, are highly sensitive to forest loss and fragmentation. Currently, there is little knowledge regarding the large-scale diversity patterns of understory bird communities, particularly in Eastern Asia. Consequently, we aimed to identify the distribution patterns of understory birds in southern China and the factors underlying these patterns. We analysed the diversity distribution patterns of taxonomic and functional α and β diversity for understory Passeriformes birds in southern China utilising cluster and ordination analyses. Subsequently, we analysed the effects of geographic distance, annual mean temperature, annual temperature range, annual mean precipitation, and annual precipitation range on diversity distribution patterns. In total, 9282 individuals belonging to 11 orders, 48 families, and 297 species were captured over 98,544 net hours, with Alcippeidae being the most abundant family in southern China. The understory bird communities of the 25 sites were categorised into six sub-regions of the Oriental Realm (Indo-Malayan Realm). The pattern in the distribution of taxonomic and functional β-diversity of understory birds in southern China was consistent with zoogeographical regionalisation. Three distinct geographical groups were identified: Group 1 was located in the Min-Guang Coast and Hainan sub-regions; Group 2 was located in the East Hilly Plain, Southwest Mountains, and Western Mountains and Plateaus sub-regions; and Group 3 was located in the Southern Yunnan Mountain subregion. The most critical factors related to the distribution patterns of β-diversity were geographical distance, annual mean temperature, and annual temperature range. Our results showed that the understory bird communities of the Southwest Mountain, East Hilly Plain, and Western Mountains, and Plateaus sub-regions were similar, as were those of the Min-Guang Coast and Hainan sub-regions. Our results underscore the joint roles of distance, temperature, and historical evolution in understory bird communities.
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Affiliation(s)
- Fangyuan Liu
- College of Life SciencesShaanxi Normal UniversityXi'anChina
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
| | - Xiaoping Yu
- College of Life SciencesShaanxi Normal UniversityXi'anChina
| | - Xianli Che
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
| | - Qiang Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
| | - Alexandra Ashley Grossi
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
| | - Min Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
- Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life SciencesBeijing Normal UniversityBeijingChina
| | - Zhengzhen Wang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
| | - Fasheng Zou
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Library of Wild Animal Conservation and Utilization, Institute of ZoologyGuangdong Academy of SciencesGuangzhouChina
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4
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Siegel T, Magrach A, Laurance WF, Luther D. A global meta-analysis of the impacts of forest fragmentation on biotic mutualisms and antagonisms. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024; 38:e14206. [PMID: 37855172 DOI: 10.1111/cobi.14206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 09/11/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Forest fragmentation is a grave threat to biodiversity. Forests are becoming increasingly fragmented with more than 70% now < 1 km from forest edge. Although much is known about the effects of forest fragmentation on individual species, much less is understood about its effects on species interactions (i.e., mutualisms, antagonisms, etc.). In 2014, a previous meta-analysis assessed the impacts of forest fragmentation on different species interactions, across 82 studies. We pooled the previous data with data published in the last 10 years (combined total 104 studies and 168 effect sizes). We compared the new set of publications (22 studies and 32 effect sizes) with the old set to evaluate potential changes in species interactions over time given the global increase in fragmentation rates. Mutualisms were more negatively affected by forest fragmentation than antagonisms (p < 0.0001). Edge effects, fragment size, and degradation negatively affected mutualisms, but not antagonisms, a different finding from the original meta-analysis. Parasitic interactions increased as fragment size decreased (p < 0.0001)-an intriguing result at variance with earlier studies. New publications showed a more negative mean effect size of forest fragmentation on mutualisms than old publications. Although research is still limited for some interactions, we identified an important scientific trend: current research tends to focus on antagonisms. We concluded that forest fragmentation disrupts important species interactions and that this disruption has increased over time.
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Affiliation(s)
| | | | - William F Laurance
- Centre for Tropical Environmental and Sustainability Science, James Cook University, Cairns, Queensland, Australia
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van Tiel N, Fopp F, Brun P, van den Hoogen J, Karger DN, Casadei CM, Lyu L, Tuia D, Zimmermann NE, Crowther TW, Pellissier L. Regional uniqueness of tree species composition and response to forest loss and climate change. Nat Commun 2024; 15:4375. [PMID: 38821947 PMCID: PMC11143270 DOI: 10.1038/s41467-024-48276-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 04/26/2024] [Indexed: 06/02/2024] Open
Abstract
The conservation and restoration of forest ecosystems require detailed knowledge of the native plant compositions. Here, we map global forest tree composition and assess the impacts of historical forest cover loss and climate change on trees. The global occupancy of 10,590 tree species reveals complex taxonomic and phylogenetic gradients determining a local signature of tree lineage assembly. Species occupancy analyses indicate that historical forest loss has significantly restricted the potential suitable range of tree species in all forest biomes. Nevertheless, tropical moist and boreal forest biomes display the lowest level of range restriction and harbor extremely large ranged tree species, albeit with a stark contrast in richness and composition. Climate change simulations indicate that forest biomes are projected to differ in their response to climate change, with the highest predicted species loss in tropical dry and Mediterranean ecoregions. Our findings highlight the need for preserving the remaining large forest biomes while regenerating degraded forests in a way that provides resilience against climate change.
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Affiliation(s)
- Nina van Tiel
- Global Ecosystem Ecology, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland.
- Environmental Computational Science and Earth Observation Laboratory, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Fabian Fopp
- Ecosystems and Landscape Evolution, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Land Change Science Research Unit, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
| | - Philipp Brun
- Land Change Science Research Unit, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
| | - Johan van den Hoogen
- Global Ecosystem Ecology, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
| | - Dirk Nikolaus Karger
- Biodiversity and Conservation Biology, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
| | - Cecilia M Casadei
- Laboratory of Biomolecular Research, Biology and Chemistry Division, Paul Scherrer Institute, PSI, Villigen, Switzerland
- Institute of Molecular Biology and Biophysics, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Lisha Lyu
- Ecosystems and Landscape Evolution, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Land Change Science Research Unit, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
| | - Devis Tuia
- Environmental Computational Science and Earth Observation Laboratory, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Niklaus E Zimmermann
- Land Change Science Research Unit, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
| | - Thomas W Crowther
- Global Ecosystem Ecology, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
| | - Loïc Pellissier
- Ecosystems and Landscape Evolution, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Land Change Science Research Unit, Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
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Robinson JG, LaBruna D, O’Brien T, Clyne PJ, Dudley N, Andelman SJ, Bennett EL, Chicchon A, Durigan C, Grantham H, Kinnaird M, Lieberman S, Maisels F, Moreira A, Rao M, Stokes E, Walston J, Watson JEM. Scaling up area-based conservation to implement the Global Biodiversity Framework's 30x30 target: The role of Nature's Strongholds. PLoS Biol 2024; 22:e3002613. [PMID: 38771730 PMCID: PMC11108224 DOI: 10.1371/journal.pbio.3002613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024] Open
Abstract
The Global Biodiversity Framework (GBF), signed in 2022 by Parties to the Convention on Biological Diversity, recognized the importance of area-based conservation, and its goals and targets specify the characteristics of protected and conserved areas (PCAs) that disproportionately contribute to biodiversity conservation. To achieve the GBF's target of conserving a global area of 30% by 2030, this Essay argues for recognizing these characteristics and scaling them up through the conservation of areas that are: extensive (typically larger than 5,000 km2); have interconnected PCAs (either physically or as part of a jurisdictional network, and frequently embedded in larger conservation landscapes); have high ecological integrity; and are effectively managed and equitably governed. These areas are presented as "Nature's Strongholds," illustrated by examples from the Congo and Amazon basins. Conserving Nature's Strongholds offers an approach to scale up initiatives to address global threats to biodiversity.
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Affiliation(s)
- John G. Robinson
- Wildlife Conservation Society, Bronx, New York, United States of America
| | - Danielle LaBruna
- Wildlife Conservation Society, Bronx, New York, United States of America
| | | | - Peter J. Clyne
- Wildlife Conservation Society, Bronx, New York, United States of America
| | | | - Sandy J. Andelman
- Wildlife Conservation Society, Bronx, New York, United States of America
| | | | - Avecita Chicchon
- Andes-Amazon Initiative, Gordon and Betty Moore Foundation, Palo Alto, California, United States of America
| | - Carlos Durigan
- Wildlife Conservation Society Brasil, Manaus, Amazonas, Brazil
| | - Hedley Grantham
- Center for Ecosystem Science, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
- Bush Heritage Australia, Melbourne, Victoria, Australia
| | | | - Sue Lieberman
- Wildlife Conservation Society, Bronx, New York, United States of America
| | - Fiona Maisels
- Wildlife Conservation Society Congo, Brazzaville, Republic of Congo
- Biological and Environmental Sciences, University of Stirling, Stirling, United Kingdom
| | - Adriana Moreira
- Global Environmental Facility, Washington, DC, United States of America
| | - Madhu Rao
- Wildlife Conservation Society, Bronx, New York, United States of America
- World Commission on Protected Areas, International Union for Conservation of Nature, Gland, Switzerland
| | - Emma Stokes
- Wildlife Conservation Society, Bronx, New York, United States of America
| | - Joe Walston
- Wildlife Conservation Society, Bronx, New York, United States of America
| | - James EM Watson
- School of The Environment, University of Queensland, Brisbane, Queensland, Australia
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Bas TG, Sáez ML, Sáez N. Sustainable Development versus Extractivist Deforestation in Tropical, Subtropical, and Boreal Forest Ecosystems: Repercussions and Controversies about the Mother Tree and the Mycorrhizal Network Hypothesis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1231. [PMID: 38732447 PMCID: PMC11085170 DOI: 10.3390/plants13091231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024]
Abstract
This research reviews the phenomenon of extractive deforestation as a possible trigger for cascade reactions that could affect part of the forest ecosystem and its biodiversity (surface, aerial, and underground) in tropical, subtropical, and boreal forests. The controversy and disparities in criteria generated in the international scientific community around the hypothesis of a possible link between "mother trees" and mycorrhizal networks in coopetition for nutrients, nitrogen, and carbon are analyzed. The objective is to promote awareness to generate more scientific knowledge about the eventual impacts of forest extraction. Public policies are emphasized as crucial mediators for balanced sustainable development. Currently, the effects of extractive deforestation on forest ecosystems are poorly understood, which requires caution and forest protection. Continued research to increase our knowledge in molecular biology is advocated to understand the adaptation of biological organisms to the new conditions of the ecosystem both in the face of extractive deforestation and reforestation. The environmental impacts of extractive deforestation, such as the loss of biodiversity, soil degradation, altered water cycles, and the contribution of climate change, remain largely unknown. Long-term and high-quality research is essential to ensure forest sustainability and the preservation of biodiversity for future generations.
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Affiliation(s)
- Tomas Gabriel Bas
- Escuela de Ciencias Empresariales, Universidad Católica del Norte, Coquimbo 1780000, Chile;
| | - Mario Luis Sáez
- Facultad de Humanidades, La Serena University, Coquimbo 1700000, Chile;
| | - Nicolas Sáez
- Escuela de Ciencias Empresariales, Universidad Católica del Norte, Coquimbo 1780000, Chile;
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8
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Magoulick KM, Hull V, Liu J. Mammal recovery inside and outside terrestrial protected areas. AMBIO 2024:10.1007/s13280-024-02014-7. [PMID: 38600245 DOI: 10.1007/s13280-024-02014-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/21/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
Protected areas are a key component of global conservation, and the world is aiming to increase protected areas to cover 30% of land and water through the 30 × 30 Initiative under the Post-2020 Global Biodiversity Framework. However, factors affecting their success or failure in regard to promoting mammal population recovery are not well studied, particularly using quantitative approaches comparing across diverse taxa, biomes, and countries. To better understand how protected areas contribute to mammalian recovery, we conducted an analysis of 2706 mammal populations both inside and outside of protected areas worldwide. We calculated the annual percent change of mammal populations within and outside of terrestrial protected areas and examined the relationship between the percent change and a suite of human and natural characteristics including biome, region, International Union for Conservation of Nature (IUCN) protected area category, IUCN Red List classification, and taxonomic order. Our results show that overall mammal populations inside and outside of protected areas are relatively stable. It appears that Threatened mammals are doing better inside of protected areas than outside, whereas the opposite is true for species of least concern and Near Threatened species. We also found significant population increases in protected areas classified as category III and significant population decreases in protected and unprotected areas throughout Oceania. Our results demonstrate that terrestrial protected areas can be an important approach for mammalian recovery and conservation.
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Affiliation(s)
- Katherine M Magoulick
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, USA.
| | - Vanessa Hull
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - Jianguo Liu
- Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
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Martinez de Zorzi V, Shanee S, Oklander LI. Fragmented forest affects the southern black-horned capuchin (Sapajus nigritus cucullatus) in the Argentinean Atlantic Forest. Primates 2024; 65:125-133. [PMID: 38238485 DOI: 10.1007/s10329-023-01114-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 12/13/2023] [Indexed: 02/23/2024]
Abstract
The southern black-horned capuchin, Sapajus nigritus cucullatus, is considered Near Threatened on the IUCN Red List and Vulnerable in Argentina. The species is mainly threatened by habitat loss and fragmentation. The aim of this study was to compare range size, group size, and density in S. n. cucullatus groups between areas of continuous and fragmented habitat in the Atlantic Forest in Argentina. The study was carried out in two areas in northern Misiones province, one continuous and one anthropogenic fragment. Fieldwork was carried out for 5 days each month from November 2019 to March 2020 and from November 2020 to March 2021. SARS-CoV-2 restrictions meant we could not survey in the intervening period. Group counts were made on existing trails and subsequent group follows. We georeferenced encounters and follows to estimate home range sizes. We calculated density based on home range modeling using 100% minimum convex polygons (MCP), and compared these using generalized linear models (GLM). Smaller groups and lower density of S. n. cucullatus were found in continuous forest, with group sizes between 12 and 23 individuals, and density of 0.14 ind/ha, whereas in the fragmented forest, group sizes were between 32 and 36, with density of 0.62 ind/ha (n = 107; zero-inflated negative binomial regression [ZINB], p < 0.05). The higher density in forest fragments may be due to reduced dispersal ability. This work highlights data on species plasticity that could contribute to the development of conservation management strategies for S. n. cucullatus and its habitat.
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Affiliation(s)
- Victoria Martinez de Zorzi
- Instituto de Biología Subtropical (IBS), Universidad Nacional de Misiones y Consejo Nacional de Investigaciones Científicas y Técnicas (UNAM-CONICET-Argentina), Posadas, Argentina.
- Neotropical Primate Conservation Argentina, Lindtron 579, Puerto Iguazú, Misiones, Argentina.
| | - Sam Shanee
- Neotropical Primate Conservation, Cornwall, UK
| | - Luciana Inés Oklander
- Instituto de Biología Subtropical (IBS), Universidad Nacional de Misiones y Consejo Nacional de Investigaciones Científicas y Técnicas (UNAM-CONICET-Argentina), Posadas, Argentina
- Neotropical Primate Conservation Argentina, Lindtron 579, Puerto Iguazú, Misiones, Argentina
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Adams MS, Levi T, Bourbonnais M, Service CN, Artelle K, Bryan H, Paquet P, Nelson T, Darimont CT. Human disturbance in riparian areas disrupts predator-prey interactions between grizzly bears and salmon. Ecol Evol 2024; 14:e11058. [PMID: 38505181 PMCID: PMC10950355 DOI: 10.1002/ece3.11058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 03/21/2024] Open
Abstract
Wildlife must increasingly balance trade-offs between the need to access important foods and the mortality risks associated with human-dominated landscapes. Human disturbance can profoundly influence wildlife behavior, but managers know little about the relationship between disturbance-behavior dynamics and associated consequences for foraging. We address this gap by empirically investigating the consequences of human activity on a keystone predator-prey interaction in a region with limited but varied industrial disturbance. Using stable isotope data from 226 hair samples of grizzly bears (Ursus arctos horribilis) collected from 1995 to 2014 across 22 salmon-bearing watersheds (88,000 km2) in British Columbia, Canada, we examined how human activity influenced their consumption of spawning salmon (Oncorhynchus spp.), a fitness-related food. Accounting for the abundance of salmon and other foods, salmon consumption strongly decreased (up to 59% for females) with increasing human disturbance (as measured by the human footprint index) in riparian zones of salmon-bearing rivers. Declines in salmon consumption occurred with disturbance even in watersheds with low footprints. In a region currently among the least influenced by industrial activity, intensification of disturbance in river valleys is predicted to increasingly decouple bears from salmon, possibly driving associated reductions in population productivity and provisioning of salmon nutrients to terrestrial ecosystems. Accordingly, we draw on our results to make landscape-scale and access-related management recommendations beyond current streamside protection buffers. This work illustrates the interaction between habitat modification and food security for wildlife, highlighting the potential for unacknowledged interactions and cumulative effects in increasingly modified landscapes.
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Affiliation(s)
- Megan S. Adams
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Raincoast Conservation FoundationSidneyBritish ColumbiaCanada
- Hakai InstituteCampbell RiverBritish ColumbiaCanada
- Central Coast Indigenous Resource AllianceCampbell RiverBritish ColumbiaCanada
| | - Taal Levi
- Department of Fisheries and WildlifeOregon State UniversityCorvallisOregonUSA
| | - Mathieu Bourbonnais
- Department of Earth, Environmental and Geographic SciencesUniversity of British Columbia OkanaganKelownaBritish ColumbiaCanada
| | - Christina N. Service
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Kitasoo Xai'xais Stewardship Authority, Kitasoo Xai'xais First NationKlemtuBritish ColumbiaCanada
- School of Environmental StudiesUniversity of VictoriaVictoriaBritish ColumbiaCanada
| | - Kyle Artelle
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Raincoast Conservation FoundationSidneyBritish ColumbiaCanada
- Department of Earth, Environmental and Geographic SciencesUniversity of British Columbia OkanaganKelownaBritish ColumbiaCanada
- Department of Environmental Biology, and Center for Native Peoples and the EnvironmentState University of New York, College of Environmental Science and ForestrySyracuseNew YorkUSA
| | - Heather Bryan
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Raincoast Conservation FoundationSidneyBritish ColumbiaCanada
- Hakai InstituteCampbell RiverBritish ColumbiaCanada
- Department of Ecosystem Science and ManagementUniversity of Northern British ColumbiaPrince GeorgeBritish ColumbiaCanada
| | - Paul Paquet
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Raincoast Conservation FoundationSidneyBritish ColumbiaCanada
| | - Trisalyn Nelson
- Department of GeographyUniversity of California Santa BarbaraSanta BarbaraCaliforniaUSA
| | - Chris T. Darimont
- Department of GeographyUniversity of VictoriaVictoriaBritish ColumbiaCanada
- Raincoast Conservation FoundationSidneyBritish ColumbiaCanada
- Hakai InstituteCampbell RiverBritish ColumbiaCanada
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11
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Estoque RC, Wu J. The resilience-sustainability-quality of life nexus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169526. [PMID: 38135087 DOI: 10.1016/j.scitotenv.2023.169526] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/03/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Social-ecological resilience (SER), sustainability (SUS) and quality of life including wellbeing (QOL) are distinct but highly interconnected goals that are essential for human survival, development, and adaptation to environmental and socioeconomic changes. However, these goals are often addressed in silos or pairs, and a framework explicitly linking all three is currently lacking. In this paper, we present the SER-SUS-QOL nexus framework and discuss how social and ecological changes affect these goals. The main thrust of this nexus is that efforts toward SER and SUS need to be explicitly framed in terms of the ultimate goal, which has to be the QOL of the present and future generations. We contend that critically assessing the dynamic interplay between SER, SUS and QOL, as well as the factors impacting them, can help promote transformative governance and planning in the contemporary era. Understanding the multifaceted interrelationship between these goals is crucial to empower planners and decision-makers to navigate the complexities of our rapidly changing world and address the challenges brought by interrelated social and ecological changes. To deepen our understanding of this nexus, more research is needed on various issues, including, but not limited to, trade-offs and synergies, cascading effects, spatiotemporal dynamics of SER, SUS and QOL outcomes, potential inconsistencies between SER and transformative changes toward SUS, and the role of local/indigenous/traditional ecological knowledge in transformative governance and planning.
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Affiliation(s)
- Ronald C Estoque
- Center for Biodiversity and Climate Change, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan.
| | - Jianguo Wu
- School of Life Sciences and School of Sustainability, Arizona State University, Tempe, AZ 85287, USA
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12
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Neate-Clegg MHC. Bird vulnerability to forest loss. Nat Ecol Evol 2024; 8:188-189. [PMID: 38182681 DOI: 10.1038/s41559-023-02259-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
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13
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Sanjeewani N, Samarasinghe D, Jayasinghe H, Ukuwela K, Wijetunga A, Wahala S, De Costa J. Variation of floristic diversity, community composition, endemism, and conservation status of tree species in tropical rainforests of Sri Lanka across a wide altitudinal gradient. Sci Rep 2024; 14:2090. [PMID: 38267529 PMCID: PMC10808289 DOI: 10.1038/s41598-024-52594-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/20/2024] [Indexed: 01/26/2024] Open
Abstract
Tropical rainforests in Sri Lanka are biodiversity hotspots, which are sensitive to anthropogenic disturbance and long-term climate change. We assessed the diversity, endemism and conservation status of these rainforests across a wide altitudinal range (100-2200 m above sea level) via a complete census of all trees having ≥ 10 cm diameter at breast height in ten one-hectare permanent sampling plots. The numbers of tree families, genera and species and community-scale tree diversity decreased with increasing altitude. Tree diversity, species richness and total basal area per ha across the altitudinal range were positively associated with long-term means of maximum temperature, annual rainfall and solar irradiance. Percentage of endangered species increased with increasing altitude and was positively associated with cumulative maximum soil water deficit, day-night temperature difference and high anthropogenic disturbance. Percentage of endemic species was greater in the lowland rainforests than in high-altitude montane forests. Nearly 85% of the species were recorded in three or less plots, which indicated substantial altitudinal differentiation in their distributions. Less than 10 individuals were recorded in 41% of the endemic species and 45% of the native species, which underlined the need for urgent conservation efforts across the whole altitudinal range.
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Affiliation(s)
- Nimalka Sanjeewani
- Postgraduate Institute of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
| | - Dilum Samarasinghe
- Postgraduate Institute of Archaeology, University of Kelaniya, Colombo, Sri Lanka
| | | | - Kanishka Ukuwela
- Department of Biological Science, Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale, Sri Lanka
| | - Asanga Wijetunga
- Department of Biological Science, Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale, Sri Lanka
| | - Sampath Wahala
- Department of Tourism Management, Faculty of Management Studies, Sabaragamuwa University of Sri Lanka, Belihul Oya, Sri Lanka
| | - Janendra De Costa
- Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka.
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14
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Gao D, Liu S, Gao F, Ning C, Wu X, Yan W, Smith A. Response of soil micro-food web to nutrient limitation along a subtropical forest restoration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168349. [PMID: 37963531 DOI: 10.1016/j.scitotenv.2023.168349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
Forest ecosystem productivity and function is strongly influenced by the interaction between soil organisms and their resource use that can be impeded by an imbalance of ecological stoichiometry. Soil microorganisms are known to have an important role in biogeochemical cycling which is strongly influenced by ecological stoichiometry. However, there is limited understanding of how soil micro-food web respond to stoichiometric imbalances during forest restoration. Here, we investigated the effect of forest restoration on soil physio-chemical properties and the structure and function of soil micro-food web along a chronosequence of transformation stages: (i) early stage monoculture plantation of Chinese fir (Cunninghamia lanceolata) comprised of three age classes (5, 10 and 20 years); (ii) mid-stage conifer-broadleaved mixed forest; and (iii) late-stage mixed species broadleaved forest in south China. Results showed that forest restoration from C. lanceolata monocultures to mixed species broadleaved forest significantly increased soil organic carbon and total nitrogen. Soil bacteria, fungi, protists and nematodes abundance increased and the co-occurrence networks of soil biota became more complex and stable along the restoration chronosequence. In contrast, soil nitrogen and phosphorus limitations, particularly phosphorus limitation, increased along the chronosequence. In addition, soil exoenzyme activity suggested that the microbial investment in resource acquisition shifted from C- to nutrient-acquiring enzymes from the earlier to the later restoration stages. Availability of soil resources (e.g., dissolved organic carbon, ammonium, and available phosphate) appeared to have an important role in regulating soil food web composition, structure and stability during forest restoration. We conclude that nutrient limitation, particularly phosphorus limitation, likely has an important role in determining the stability of soil food webs during forest restoration. These findings contribute to our understanding of the relationships between soil nutrient limitation and soil micro-food web, and have implications for carbon sequestration through forest restoration and management in southern China.
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Affiliation(s)
- Dandan Gao
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, MNR, China
| | - Shuguang Liu
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, MNR, China.
| | - Fei Gao
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, MNR, China
| | - Chen Ning
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China
| | - Xiaohong Wu
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China
| | - Wende Yan
- College of Life Science and Technology, National Engineering Laboratory for Applied Technology in Forestry & Ecology in South China, Central South University of Forestry and Technology, Changsha 410004, China; Lutou National Station for Scientific Observation and Research of Forest Ecosystems in Hunan Province, China
| | - Andy Smith
- School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK
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Boonman CCF, Serra-Diaz JM, Hoeks S, Guo WY, Enquist BJ, Maitner B, Malhi Y, Merow C, Buitenwerf R, Svenning JC. More than 17,000 tree species are at risk from rapid global change. Nat Commun 2024; 15:166. [PMID: 38167693 PMCID: PMC10761716 DOI: 10.1038/s41467-023-44321-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024] Open
Abstract
Trees are pivotal to global biodiversity and nature's contributions to people, yet accelerating global changes threaten global tree diversity, making accurate species extinction risk assessments necessary. To identify species that require expert-based re-evaluation, we assess exposure to change in six anthropogenic threats over the last two decades for 32,090 tree species. We estimated that over half (54.2%) of the assessed species have been exposed to increasing threats. Only 8.7% of these species are considered threatened by the IUCN Red List, whereas they include more than half of the Data Deficient species (57.8%). These findings suggest a substantial underestimation of threats and associated extinction risk for tree species in current assessments. We also map hotspots of tree species exposed to rapidly changing threats around the world. Our data-driven approach can strengthen the efforts going into expert-based IUCN Red List assessments by facilitating prioritization among species for re-evaluation, allowing for more efficient conservation efforts.
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Affiliation(s)
- Coline C F Boonman
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark.
| | - Josep M Serra-Diaz
- Department of Ecology and Evolution and Eversource Energy Center, University of Connecticut, Storrs, CT, USA
- Université de Lorraine, AgroParisTech, INRAE, Silva, Nancy, France
| | - Selwyn Hoeks
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences (RIBES), Radboud University, Nijmegen, The Netherlands
| | - Wen-Yong Guo
- Research Center for Global Change and Complex Ecosystems, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Brian J Enquist
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA
| | - Brian Maitner
- Department of Geography, University at Buffalo, Buffalo, NY, USA
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, England, UK
- Leverhulme Centre for Nature Recovery, University of Oxford, Oxford, UK
| | - Cory Merow
- Department of Ecology and Evolution and Eversource Energy Center, University of Connecticut, Storrs, CT, USA
| | - Robert Buitenwerf
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark
| | - Jens-Christian Svenning
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark
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16
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Morais J, Tebbett SB, Morais RA, Bellwood DR. Natural recovery of corals after severe disturbance. Ecol Lett 2024; 27:e14332. [PMID: 37850584 DOI: 10.1111/ele.14332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 10/19/2023]
Abstract
Ecosystem recovery from human-induced disturbances, whether through natural processes or restoration, is occurring worldwide. Yet, recovery dynamics, and their implications for broader ecosystem management, remain unclear. We explored recovery dynamics using coral reefs as a case study. We tracked the fate of 809 individual coral recruits that settled after a severe bleaching event at Lizard Island, Great Barrier Reef. Recruited Acropora corals, first detected in 2020, grew to coral cover levels that were equivalent to global average coral cover within just 2 years. Furthermore, we found that just 11.5 Acropora recruits per square meter were sufficient to reach this cover within 2 years. However, wave exposure, growth form and colony density had a marked effect on recovery rates. Our results underscore the importance of considering natural recovery in management and restoration and highlight how lessons learnt from reef recovery can inform our understanding of recovery dynamics in high-diversity climate-disturbed ecosystems.
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Affiliation(s)
- Juliano Morais
- Research Hub for Coral Reef Ecosystem Functions and College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Sterling B Tebbett
- Research Hub for Coral Reef Ecosystem Functions and College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Renato A Morais
- Research Hub for Coral Reef Ecosystem Functions and College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
- Paris Sciences et Lettres Université, École Pratique des Hautes Études, EPHE-UPVD-CNRS, UAR 3278 CRIOBE, University of Perpignan, Perpignan, France
| | - David R Bellwood
- Research Hub for Coral Reef Ecosystem Functions and College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
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17
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Min KD, Yoo DS. Ecological drivers for poultry farms predisposed to highly pathogenic avian influenza virus infection during the initial phase of the six outbreaks between 2010-2021: a nationwide study in South Korea. Front Vet Sci 2023; 10:1278852. [PMID: 38130434 PMCID: PMC10733472 DOI: 10.3389/fvets.2023.1278852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Background Highly pathogenic avian influenza (HPAI) has caused substantial economic losses worldwide. An understanding of the environmental drivers that contribute to spillover transmission from wild birds to poultry farms is important for predicting areas at risk of introduction and developing risk-based surveillance strategies. We conducted an epidemiological study using data from six HPAI outbreak events in South Korea. Materials and methods An aggregate-level study design was implemented using third-level administrative units in South Korea. Only regions with high natural reservoir suitability were included. The incidence of HPAI at chicken and duck farms during the initial phase (30 and 45 days after the first case) of each outbreak event was used as the outcome variable, assuming that cross-species transmission from wild birds was the dominant exposure leading to infection. Candidate environmental drivers were meteorological factors, including temperature, precipitation, humidity, and altitude, as well as the proportion of protected area, farm density, deforestation level, and predator species richness. Logistic regression models were implemented; conditional autoregression models were used in cases of spatial autocorrelation of residuals. Results Lower temperature, higher farm density, and lower predator species richness were significantly associated with a higher risk of HPAI infection on chicken farms. Lower temperature, higher proportion of protected area, and lower predator species richness were significantly associated with a higher risk of HPAI infection on duck farms. Conclusion The predicted dominant transmission routes on chicken and duck farms were horizontal and spillover, respectively. These results reveal a potential protective effect of predator species richness against HPAI outbreaks. Further studies are required to confirm a causal relationship.
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Affiliation(s)
- Kyung-Duk Min
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Dae-sung Yoo
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
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18
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Bełcik M, Lenda ML, Pustkowiak S, Woźniak B, Skórka P. Social information modifies the associations between forest fragmentation and the abundance of a passerine bird. Sci Rep 2023; 13:21386. [PMID: 38049553 PMCID: PMC10696010 DOI: 10.1038/s41598-023-48512-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
Habitat loss and fragmentation are the main factors driving the occurrence and abundance of species in the landscape. However, the local occurrence and abundance of species may also depend on conspecific and heterospecific social information e.g. clues of animals' presence or their voices. We investigated the impact of the interaction between different types of social information and forest fragmentation on the abundance of the song thrush, Turdus philomelos, in Central Europe. Three types of social information (attractive, repulsive, and mixed) and procedural control were broadcasted via loudspeakers in 150 forest patches that varied in size and isolation metrics. Repulsive social information (cues of presence of predator) decreased abundance of song thrush. Also, the repulsive social information changed the association between forest patch isolation, size and the abundance. Attractive social information (songs of the studied thrush) had no effect on song thrush abundance. However, the attractive social information reversed the positive correlation between habitat patch size and the abundance. Mixed social information (both repulsive and attractive) had no impact on the abundance nor interacted with habitat fragmentation. The observed effects mostly did not last to the next breeding season. Overall, our findings indicate that lands of fear and social attraction could modify the effect of habitat fragmentation on the species abundance but these effects probably are not long-lasting.
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Affiliation(s)
- Michał Bełcik
- Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland.
- Centre for Biodiversity and Conservation Science, University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Magdalena Lidia Lenda
- Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland
| | - Sylwia Pustkowiak
- Population Ecology Lab, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland
| | - Bartłomiej Woźniak
- Department of Forest Zoology and Wildlife Management, Institute of Forest Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Piotr Skórka
- Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland
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19
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Guo WY, Serra-Diaz JM, Eiserhardt WL, Maitner BS, Merow C, Violle C, Pound MJ, Sun M, Slik F, Blach-Overgaard A, Enquist BJ, Svenning JC. Climate change and land use threaten global hotspots of phylogenetic endemism for trees. Nat Commun 2023; 14:6950. [PMID: 37907453 PMCID: PMC10618213 DOI: 10.1038/s41467-023-42671-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023] Open
Abstract
Across the globe, tree species are under high anthropogenic pressure. Risks of extinction are notably more severe for species with restricted ranges and distinct evolutionary histories. Here, we use a global dataset covering 41,835 species (65.1% of known tree species) to assess the spatial pattern of tree species' phylogenetic endemism, its macroecological drivers, and how future pressures may affect the conservation status of the identified hotspots. We found that low-to-mid latitudes host most endemism hotspots, with current climate being the strongest driver, and climatic stability across thousands to millions of years back in time as a major co-determinant. These hotspots are mostly located outside of protected areas and face relatively high land-use change and future climate change pressure. Our study highlights the risk from climate change for tree diversity and the necessity to strengthen conservation and restoration actions in global hotspots of phylogenetic endemism for trees to avoid major future losses of tree diversity.
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Affiliation(s)
- Wen-Yong Guo
- Research Center for Global Change and Complex Ecosystems & Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, 200241, Shanghai, P. R. China.
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, 8000, Aarhus C, Denmark.
- Section for Ecoinformatics & Biodiversity, Department of Biology, Aarhus University, 8000, Aarhus C, Denmark.
| | - Josep M Serra-Diaz
- Eversource Energy Center and Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
- Université de Lorraine, AgroParisTech, INRAE, Silva, Nancy, France
| | - Wolf L Eiserhardt
- Section for Ecoinformatics & Biodiversity, Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
| | - Brian S Maitner
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Cory Merow
- Eversource Energy Center and Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - Cyrille Violle
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Matthew J Pound
- Department of Geography and Environmental Sciences, Northumbria University, Newcastle upon Tyne, NE1 8ST, United Kingdom
| | - Miao Sun
- Section for Ecoinformatics & Biodiversity, Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410, Gadong, Brunei Darussalam
| | - Anne Blach-Overgaard
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
- Section for Ecoinformatics & Biodiversity, Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
| | - Brian J Enquist
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
- The Santa Fe Institute, 1399 Hyde Park Rd, Santa Fe, NM, 87501, USA
| | - Jens-Christian Svenning
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO) & Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
- Section for Ecoinformatics & Biodiversity, Department of Biology, Aarhus University, 8000, Aarhus C, Denmark
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20
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Venier-Cambron C, Malek Ž, Verburg PH. Avoiding an unjust transition to sustainability: An equity metric for spatial conservation planning. Proc Natl Acad Sci U S A 2023; 120:e2216693120. [PMID: 37844239 PMCID: PMC10614950 DOI: 10.1073/pnas.2216693120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/05/2023] [Indexed: 10/18/2023] Open
Abstract
The need for rapid and ambitious conservation and restoration is widely acknowledged, yet concern exists that the widespread reallocation of land to nature would disproportionately affect the world's poor. Conservation and restoration may limit nutrition and livelihood options and thus negatively affect social development objectives. Although much research looks into global-scale scenarios and planning of conservation and restoration, spatial evaluations of these trade-offs in terms of equity remain limited. We fill this gap by identifying areas where conservation or restoration under different future scenarios and prioritization maps expand nature into landscapes that likely support land-dependent communities in their local food security. By contrasting the expansion of nature into areas supporting land-dependent communities vs. places where the food system is supported by regional to global markets, we highlight the need for disaggregated indicators that reflect the diversity of human land-use needs in order to identify more equitable pathways. Conservation prioritizations were found to result in more equitable land-use outcomes than the land-use outcomes of widely used socioeconomic scenarios. Accounting for differentiated social impacts in model-based conservation and restoration planning and global scale scenario assessment can help achieve a more inclusive transition to sustainability as well as reduce barriers to meaningful change.
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Affiliation(s)
- Camille Venier-Cambron
- Department of Environmental Geography, Instituut voor Milieuvraagstukken, Vrije Universiteit Amsterdam, 1081 HVAmsterdam, The Netherlands
| | - Žiga Malek
- Department of Environmental Geography, Instituut voor Milieuvraagstukken, Vrije Universiteit Amsterdam, 1081 HVAmsterdam, The Netherlands
| | - Peter H. Verburg
- Department of Environmental Geography, Instituut voor Milieuvraagstukken, Vrije Universiteit Amsterdam, 1081 HVAmsterdam, The Netherlands
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Llopis JC, Haddaway NR, Omirbek N, Simmons BA, Garrett R, Jones JPG. Evidence of anticipatory forest use behaviours under policy introduction: a systematic map protocol. ENVIRONMENTAL EVIDENCE 2023; 12:20. [PMID: 38799729 PMCID: PMC11116263 DOI: 10.1186/s13750-023-00307-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 07/15/2023] [Indexed: 05/29/2024]
Abstract
Background Forest conservation is a major global policy goal, due to the role forests play in climate change mitigation and biodiversity conservation. It is well recognized that the introduction of policies, whether aimed at forest conservation or with other objectives, has the potential to trigger unintended outcomes, such as displacement or leakage, which can undermine policy objectives. However, a set of outcomes that has escaped detailed scrutiny are anticipatory forest use behaviours, emerging when forest stakeholders anticipate policy implementation, deploying for example pre-emptive forest clearing, resulting in detrimental environmental outcomes. Lack of understanding of the extent and sectorial scope of these behaviours prevents us from devising strategies to address their potential detrimental consequences. Methods This protocol presents the methodology that will be followed to conduct a systematic map to identify, compile, review and describe the evidence available on anticipatory forest use behaviours in the context of policy introduction around the world. We will use two complementary search strategies, which we have tested before submitting this protocol. First, a systematic bibliographic search, and second, a citation chase approach. We will include articles based on a pre-defined set of criteria defined according to a Population, Intervention and Outcome (i.e. PIO) design. To support identification of knowledge gaps and clusters, we will report results of the systematic map in a narrative synthesis, an evidence atlas and other visualisations. Supplementary Information The online version contains supplementary material available at 10.1186/s13750-023-00307-0.
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Affiliation(s)
- Jorge Claudio Llopis
- School of Natural Sciences, Bangor University, Bangor, UK
- Interdisciplinary Centre for Conservation Science, University of Oxford, Oxford, UK
- Centre for Development and Environment, University of Bern, Bern, Switzerland
| | - Neal Robert Haddaway
- Leibniz Centre for Agricultural Landscape Research, Müncheberg, Germany
- Africa Centre for Evidence, University of Johannesburg, Johannesburg, South Africa
| | | | | | - Rachael Garrett
- Department of Geography and Conservation Research Institute, University of Cambridge, Cambridge, UK
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Torresani M, Rocchini D, Alberti A, Moudrý V, Heym M, Thouverai E, Kacic P, Tomelleri E. LiDAR GEDI derived tree canopy height heterogeneity reveals patterns of biodiversity in forest ecosystems. ECOL INFORM 2023; 76:102082. [PMID: 37662896 PMCID: PMC10316066 DOI: 10.1016/j.ecoinf.2023.102082] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 09/05/2023]
Abstract
The "Height Variation Hypothesis" is an indirect approach used to estimate forest biodiversity through remote sensing data, stating that greater tree height heterogeneity (HH) measured by CHM LiDAR data indicates higher forest structure complexity and tree species diversity. This approach has traditionally been analyzed using only airborne LiDAR data, which limits its application to the availability of the dedicated flight campaigns. In this study we analyzed the relationship between tree species diversity and HH, calculated with four different heterogeneity indices using two freely available CHMs derived from the new space-borne GEDI LiDAR data. The first, with a spatial resolution of 30 m, was produced through a regression tree machine learning algorithm integrating GEDI LiDAR data and Landsat optical information. The second, with a spatial resolution of 10 m, was created using Sentinel-2 images and a deep learning convolutional neural network. We tested this approach separately in 30 forest plots situated in the northern Italian Alps, in 100 plots in the forested area of Traunstein (Germany) and successively in all the 130 plots through a cross-validation analysis. Forest density information was also included as influencing factor in a multiple regression analysis. Our results show that the GEDI CHMs can be used to assess biodiversity patterns in forest ecosystems through the estimation of the HH that is correlated to the tree species diversity. However, the results also indicate that this method is influenced by different factors including the GEDI CHMs dataset of choice and their related spatial resolution, the heterogeneity indices used to calculate the HH and the forest density. Our finding suggest that GEDI LIDAR data can be a valuable tool in the estimation of forest tree heterogeneity and related tree species diversity in forest ecosystems, which can aid in global biodiversity estimation.
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Affiliation(s)
- Michele Torresani
- Free University of Bolzano/Bozen, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universitá/Universitätsplatz 1, 39100 Bolzano/Bozen, Italy
| | - Duccio Rocchini
- BIOME Lab, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, via Irnerio 42, 40126, Bologna, Italy
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Department of Spatial Sciences, Kamýcka 129, Praha - Suchdol 16500, Czech Republic
| | - Alessandro Alberti
- Free University of Bolzano/Bozen, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universitá/Universitätsplatz 1, 39100 Bolzano/Bozen, Italy
| | - Vítězslav Moudrý
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Department of Spatial Sciences, Kamýcka 129, Praha - Suchdol 16500, Czech Republic
| | - Michael Heym
- Bavarian State Institute of Forestry (LWF), Hans-Carl-von-Carlowitz-Platz-1, 85354 Freising, Germany
| | - Elisa Thouverai
- BIOME Lab, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, via Irnerio 42, 40126, Bologna, Italy
| | - Patrick Kacic
- Department of Remote Sensing, Institute of Geography and Geology, University of Würzburg, Würzburg, Germany
| | - Enrico Tomelleri
- Free University of Bolzano/Bozen, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universitá/Universitätsplatz 1, 39100 Bolzano/Bozen, Italy
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23
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Cabon A, DeRose RJ, Shaw JD, Anderegg WRL. Declining tree growth resilience mediates subsequent forest mortality in the US Mountain West. GLOBAL CHANGE BIOLOGY 2023; 29:4826-4841. [PMID: 37344959 DOI: 10.1111/gcb.16826] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/23/2023]
Abstract
Climate change-triggered forest die-off is an increasing threat to global forests and carbon sequestration but remains extremely challenging to predict. Tree growth resilience metrics have been proposed as measurable proxies of tree susceptibility to mortality. However, it remains unclear whether tree growth resilience can improve predictions of stand-level mortality. Here, we use an extensive tree-ring dataset collected at ~3000 permanent forest inventory plots, spanning 13 dominant species across the US Mountain West, where forests have experienced strong drought and extensive die-off has been observed in the past two decades, to test the hypothesis that tree growth resilience to drought can explain and improve predictions of observed stand-level mortality. We found substantial increases in growth variability and temporal autocorrelation as well declining drought resistance and resilience for a number of species over the second half of the 20th century. Declining resilience and low tree growth were strongly associated with cross- and within-species patterns of mortality. Resilience metrics had similar explicative power compared to climate and stand structure, but the covariance structure among predictors implied that the effect of tree resilience on mortality could partially be explained by stand and climate variables. We conclude that tree growth resilience offers highly valuable insights on tree physiology by integrating the effect of stressors on forest mortality but may have only moderate potential to improve large-scale projections of forest die-off under climate change.
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Affiliation(s)
- Antoine Cabon
- Wilkes Center for Climate Science and Policy, University of Utah, Salt Lake City, Utah, USA
- School of Biological Sciences, University of Utah, Salt Lake City, Utah, USA
| | - R Justin DeRose
- Department of Wildland Resources and Ecology Center, Utah State University, Logan, Utah, USA
| | - John D Shaw
- USDA Forest Service, Rocky Mountain Research Station, Logan, Utah, USA
| | - William R L Anderegg
- Wilkes Center for Climate Science and Policy, University of Utah, Salt Lake City, Utah, USA
- School of Biological Sciences, University of Utah, Salt Lake City, Utah, USA
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24
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Ko JCJ, Chang AY, Lin RS, Lee PF. Deforestation within breeding ranges may still drive population trends of migratory forest birds in the East Asian Flyway. Sci Rep 2023; 13:14007. [PMID: 37635179 PMCID: PMC10460791 DOI: 10.1038/s41598-023-40626-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023] Open
Abstract
The East Asian Flyway (EAF) is the most species diverse of global flyways, with deforestation in its migratory landbird's non-breeding range suspected to be the main driver of population decline. Yet range-wide habitat loss impact assessments on EAF migratory landbirds are scarce, and seasonal variation in habitat preference of migratory species further increases the complexity for conservation strategies. In this study, we reviewed population trends of migratory forest breeding birds in the EAF along with their seasonal habitat preference from the literature and assessed the impact of forest cover change in species' breeding and non-breeding ranges on population trends. We found that 41.3% of the bird species with trend data available are declining, and most have higher forest preference in the breeding season. Despite 93.4% of the species experienced deforestation throughout their annual cycle, forest cover change in the non-breeding range was not identified as the main driver of population trend. However, forest cover change in species' regional breeding range interacts positively with the degree of breeding season forest preference in predicting population trends. We therefore stress that regional breeding habitat protection may still be important while following the call for cross-border collaboration to fill the information gap for flyway conservation.
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Affiliation(s)
- Jerome Chie-Jen Ko
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 106216, Taiwan
| | - An-Yu Chang
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
| | - Ruey-Shing Lin
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
| | - Pei-Fen Lee
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 106216, Taiwan.
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25
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De Camargo RX. Avian Diversity Responds Unimodally to Natural Landcover: Implications for Conservation Management. Animals (Basel) 2023; 13:2647. [PMID: 37627438 PMCID: PMC10451700 DOI: 10.3390/ani13162647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/11/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Predicting species' ecological responses to landcovers within landscapes could guide conservation practices. Current modelling efforts derived from classic species-area relationships almost always predict richness monotonically increasing as the proportion of landcovers increases. Yet evidence to explain hump-shaped richness-landcover patterns is lacking. We tested predictions related to hypothesised drivers of peaked relationships between richness and proportion of natural landcover. We estimated richness from breeding bird atlases at different spatial scales (25 to 900 km2) in New York State and Southern Ontario. We modelled richness to gradients of natural landcover, temperature, and landcover heterogeneity. We controlled models for sampling effort and regional size of the species pool. Species richness peaks as a function of the proportion of natural landcover consistently across spatial scales and geographic regions sharing similar biogeographic characteristics. Temperature plays a role, but peaked relationships are not entirely due to climate-landcover collinearities. Heterogeneity weakly explains richness variance in the models. Increased amounts of natural landcover promote species richness to a limit in landscapes with relatively little (<30%) natural cover. Higher amounts of natural cover and a certain amount of human-modified landcovers can provide habitats for species that prefer open habitats. Much of the variation in richness among landscapes must be related to variables other than natural versus human-dominated landcovers.
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Affiliation(s)
- Rafael X. De Camargo
- Laboratoire Chrono-Environnement, UMR-CNRS 6249, Université Franche-Comté—UFC, 25030 Besançon, France;
- TRANSBIO Graduate School, Université Bourgogne Franche Comté—COMUE UBFC, 25000 Besançon, France
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26
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Díaz-Álvarez EA, Manrique C, Boege K, del-Val E. Changes in Coleopteran assemblages over a successional chronosequence in a Mexican tropical dry forest. PeerJ 2023; 11:e15712. [PMID: 37456898 PMCID: PMC10349555 DOI: 10.7717/peerj.15712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
Coleopterans are the most diverse animal group on Earth and constitute good indicators of environmental change. However, little information is available about Coleopteran communities' responses to disturbance and land-use change. Tropical dry forests have undergone especially extensive anthropogenic impacts in the past decades. This has led to mosaic landscapes consisting of areas of primary forest surrounded by pastures, agricultural fields and secondary forests, which negatively impacts many taxonomic groups. However, such impacts have not been assessed for most arthropod groups. In this work, we compared the abundance, richness and diversity of Coleopteran morphospecies in four different successional stages in a tropical dry forest in western Mexico, to answer the question: How do Coleopteran assemblages associate with vegetation change over the course of forest succession? In addition, we assessed the family composition and trophic guilds for the four successional stages. We found 971 Coleopterans belonging to 107 morphospecies distributed in 28 families. Coleopteran abundance and richness were greatest for pastures than for latter successional stages, and the most abundant family was Chrysomelidae, with 29% of the individuals. Herbivores were the most abundant guild, accounting for 57% of the individuals, followed by predators (22%) and saprophages (21%) beetles. Given the high diversity and richness found throughout the successional chronosequence of the studied tropical dry forest, in order to have the maximum number of species associated with tropical dry forests, large tracts of forest should be preserved so that successional dynamics are able to occur naturally.
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Affiliation(s)
- Edison A. Díaz-Álvarez
- Instituto de Investigaciones Forestales, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Cesar Manrique
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacan, Mexico
| | - Karina Boege
- Instituto de Ecología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Ek del-Val
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacan, Mexico
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27
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Jin B, Jiang C. Scientization or parametrization? Which system is more advantageous to environmental conservation in the reform of China's state-owned forest farms? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-28267-5. [PMID: 37335515 DOI: 10.1007/s11356-023-28267-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 06/10/2023] [Indexed: 06/21/2023]
Abstract
Government leadership and grassroots participation are the most typical institutional arrangements in natural resource management, a topic which has been the subject of vigorous debate for a long time. Individually, these systems are referred to as scientization and parametrization. This paper takes the reform of China's state-owned forest farms (SSFs) as a pointcut, comparing the effects of the 2011 policy (representing scientization) and the 2015 policy (representing parametrization) on environmental conservation. For the period from 2006 to 2018, China's provinces are analyzed via difference-in-differences (DID) and principal components difference-in-differences (PCDID) empirical strategies. The results show that the 2015 policy increased new afforestation by an average of 0.903 units, but the 2011 policy had no significant impact. The influence path of the 2015 policy was to curb corruption, relieve fiscal stress, and stimulate innovation, playing mechanism effects of 20.49%, 14.17%, and 33.55%, respectively. However, the 2015 policy was not ideal in terms of its goal of incentivizing multi-agent participation in investments in conservation. Investors prefer to attempt afforestation projects with shorter payback periods, especially projects related to open forest land. Overall, this study supports the belief that parametric management is a better approach to natural resource management than scientific management, but the latter approach still has limitations. Therefore, we propose to prioritize the promotion of parametric management on the closed forest lands of SSFs, but there is no need to hastily mobilize grassroots participation in open forest land management projects.
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Affiliation(s)
- Bohao Jin
- College of Land Management, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Changjun Jiang
- College of Land Management, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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28
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Domingues GF, Hughes FM, Dos Santos AG, Carvalho AF, Calegario AT, Saiter FZ, Marcatti GE. Designing an optimized landscape restoration with spatially interdependent non-linear models. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162299. [PMID: 36801326 DOI: 10.1016/j.scitotenv.2023.162299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/03/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Brazilian Atlantic Forest is a biodiversity hotspot drastically fragmented due to different land use practices. Our understanding on the impacts of fragmentation and restoration practices on ecosystem functionality significantly increased during the last decades. However, it is unknown to our knowledge how a precision restoration approach, integrated with landscape metrics, will affect the decision-making process of forest restoration. Here, we applied Landscape Shape Index and Contagion metrics in a genetic algorithm for planning forest restoration in watersheds at the pixel level. We evaluated how such integration may configure the precision of restoration with scenarios related to landscape ecology metrics. The genetic algorithm worked toward optimizing the site, shape, and size of forest patches across the landscape according to the results obtained in applying the metrics. Our results, obtained by simulations of scenarios, support aggregation of forest restoration zones as expected, with priority restoration areas indicated where most of the aggregation of forest patches occurs. Our optimized solutions for the study area (Santa Maria do Rio Doce Watershed) predicted an important improvement of landscape metrics (LSI = 44 %; Contagion/LSI = 73 %). Largest shifts are suggested based on LSI (i.e., three larger fragments) and Contagion/LSI (i.e., only one well-connected fragment) optimizations. Our findings indicate that restoration in an extremely fragmented landscape will promote a shift toward more connected patches and with reduction of the surface:volume ratio. Our work explores the use of genetic algorithms to propose forest restoration based on landscape ecology metrics in a spatially explicit innovative approach. Our results indicate that LSI and Contagion:LSI ratio may affect the choice concerning precise location of restoration sites based on forest fragments scattered in the landscape and reinforce the usefulness of genetic algorithms to yield an optimized-driven solution for restoration initiatives.
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Affiliation(s)
- Getulio Fonseca Domingues
- Instituto Nacional da Mata Atlântica (INMA), Santa Teresa, Espírito Santo, Brazil; Universidade Federal do Rio Grande do Norte (UFRN), Escola Agrícola de Jundiaí, Macaíba, Rio Grande do Norte, Brazil
| | - Frederic Mendes Hughes
- Instituto Nacional da Mata Atlântica (INMA), Santa Teresa, Espírito Santo, Brazil; Universidade Federal de Minas Gerais (UFMG), Programa de Pós-graduação em Bioinformática, Belo Horizonte, Minas Gerais (MG), Brazil; Universidade Estadual de Santa Cruz (UESC), Conselho de Curadores das Coleções Científicas, Ilhéus, Bahia, Brazil; Universidade Estadual de Feira de Santana (UEFS), Departamento de Ciências Biológicas, Bahia, Brazil.
| | | | - Antônio F Carvalho
- Instituto Nacional da Mata Atlântica (INMA), Santa Teresa, Espírito Santo, Brazil; Wildlife Conservation Society (WCS), Global Conservation Program, Manaus, Amazonas, Brazil
| | | | | | - Gustavo Eduardo Marcatti
- Universidade Federal de São João del-Rei (UFSJ), Departamento de Engenharia Florestal, Campus Sete Lagoas, MG, Brazil
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29
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Vieira-Alencar JPS, Bolochio BE, Carmignotto AP, Sawaya RJ, Silveira LF, Valdujo PH, Nogueira CDC, Nori J. How habitat loss and fragmentation are reducing conservation opportunities for vertebrates in the most threatened savanna of the World. Perspect Ecol Conserv 2023. [DOI: 10.1016/j.pecon.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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30
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Molotoks A, Green J, Ribiero V, Wang Y, West C. Assessing the value of biodiversity‐specific footprinting metrics linked to South American soy trade. PEOPLE AND NATURE 2023. [DOI: 10.1002/pan3.10457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
- Amy Molotoks
- Department of Environment and Geography, Stockholm Environment Institute York University of York York UK
| | - Jonathan Green
- Department of Environment and Geography, Stockholm Environment Institute York University of York York UK
| | | | - Yunxia Wang
- Genetics and Conservation, Royal Botanic Garden Edinburgh Edinburgh UK
| | - Chris West
- Department of Environment and Geography, Stockholm Environment Institute York University of York York UK
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31
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Perrin A, Khimoun A, Ollivier A, Richard Y, Pérez-Rodríguez A, Faivre B, Garnier S. Habitat fragmentation matters more than habitat loss: The case of host-parasite interactions. Mol Ecol 2023; 32:951-969. [PMID: 36461661 DOI: 10.1111/mec.16807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/05/2022]
Abstract
While ecologists agree that habitat loss has a substantial negative effect on biodiversity it is still very much a matter of debate whether habitat fragmentation has a lesser effect and whether this effect is positive or negative for biodiversity. Here, we assess the relative influence of tropical forest loss and fragmentation on the prevalence of vector-borne blood parasites of the genera Plasmodium and Haemoproteus in six forest bird species. We also determine whether habitat loss and fragmentation are associated with a rise or fall in prevalence. We sample more than 4000 individual birds from 58 forest sites in Guadeloupe and Martinique. Considering 34 host-parasite combinations independently and a fine characterization of the amount and spatial configuration of habitat, we use partial least square regressions to disentangle the relative effects of forest loss, forest fragmentation, landscape heterogeneity, and local weather conditions on spatial variability of parasite prevalence. Then we test for the magnitude and the sign of the effect of each environmental descriptor. Strikingly, we show that forest fragmentation explains twice as much of the variance in prevalence as habitat loss or landscape heterogeneity. In addition, habitat fragmentation leads to an overall rise in prevalence in Guadeloupe, but its effect is variable in Martinique. Both habitat loss and landscape heterogeneity exhibit taxon-specific effects. Our results suggest that habitat loss and fragmentation may have contrasting effects between tropical and temperate regions and that inter-specific interactions may not respond in the same way as more commonly used biodiversity metrics such as abundance and diversity.
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Affiliation(s)
- Antoine Perrin
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France.,Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Aurélie Khimoun
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Anthony Ollivier
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Yves Richard
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | | | - Bruno Faivre
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Stéphane Garnier
- Biogéosciences, UMR 6282 CNRS, Université Bourgogne Franche-Comté, Dijon, France
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32
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Walker EJ, Gilbert B. Extinction dynamics: The interplay of species traits and the spatial scales of metapopulation declines. Ecology 2023; 104:e3840. [PMID: 36210649 DOI: 10.1002/ecy.3840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 02/01/2023]
Abstract
Global changes can lead to species declines and extinctions through their impacts on species habitats at two distinct spatial scales: habitat destruction, in which individual habitat patches are destroyed by land-use change or natural disasters, and habitat degradation, in which larger scale changes, such as nitrogen deposition or climate change, lower mean population abundances across landscapes. We developed a theory showing that, even when these two forms of global change have an identical impact on a species' total amount of habitat, they have qualitatively different consequences for species dynamics and extinction. Using metapopulation theory and simulations, we found distinct impacts of these global changes characterized through several responses: the rate at which populations are lost from the remaining patches, extinction thresholds, and the duration of extinction debts. Habitat degradation causes a faster decline in species populations when habitat reduction is low, making it particularly detrimental for rare species. Habitat destruction has smaller impacts for low habitat reduction, but shows clear thresholds beyond which it surpasses degradation's negative impact; the location and steepness of the threshold depends on species dispersal, with poor dispersers having steeper thresholds. These results highlight the challenge of using population monitoring to assess the consequences of global changes and predict consequences of further change: extinction trajectories cannot be predicted due to thresholds (habitat destruction) and lagged dynamics that lead to extinction debts (habitat degradation). Our research clarifies why the impacts of one type of global change may poorly predict the impacts of the other and suggests general rules for predicting the long-term impacts of global changes based on species traits.
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Affiliation(s)
- Emma J Walker
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
| | - Benjamin Gilbert
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
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33
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Tebbett SB, Connolly SR, Bellwood DR. Benthic composition changes on coral reefs at global scales. Nat Ecol Evol 2023; 7:71-81. [PMID: 36631667 DOI: 10.1038/s41559-022-01937-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 10/14/2022] [Indexed: 01/13/2023]
Abstract
Globally, ecosystems are being reconfigured by a range of intensifying human-induced stressors. Coral reefs are at the forefront of this environmental transformation, and if we are to secure their key ecosystem functions and services, it is important to understand the likely configuration of future reefs. However, the composition and trajectory of global coral reef benthic communities is currently unclear. Here our global dataset of 24,468 observations spanning 22 years (1997-2018) revealed that particularly marked declines in coral cover occurred in the Western Atlantic and Central Pacific. The data also suggest that high macroalgal cover, widely regarded as the major degraded state on coral reefs, is a phenomenon largely restricted to the Western Atlantic. At a global scale, the raw data suggest decreased average (± standard error of the mean) hard coral cover from 36 ± 1.4% to 19 ± 0.4% (during a period delineated by the first global coral bleaching event (1998) until the end of the most recent event (2017)) was largely associated with increased low-lying algal cover such as algal turfs and crustose coralline algae. Enhanced understanding of reef change, typified by decreased hard coral cover and increased cover of low-lying algal communities, will be key to managing Anthropocene coral reefs.
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Affiliation(s)
- Sterling B Tebbett
- Research Hub for Coral Reef Ecosystem Functions, James Cook University, Townsville, Queensland, Australia. .,ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia. .,College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.
| | - Sean R Connolly
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia.,College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.,Smithsonian Tropical Research Institute, Balboa, Republic of Panama
| | - David R Bellwood
- Research Hub for Coral Reef Ecosystem Functions, James Cook University, Townsville, Queensland, Australia.,ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia.,College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
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34
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Burivalova Z, Maeda TM, Rayadin Y, Boucher T, Choksi P, Roe P, Truskinger A, Game ET. Loss of temporal structure of tropical soundscapes with intensifying land use in Borneo. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 852:158268. [PMID: 36058325 DOI: 10.1016/j.scitotenv.2022.158268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/03/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Conservation and sustainable management efforts in tropical forests often lack reliable, effective, and easily-communicated ways to measure the biodiversity status of a protected or managed landscape. The sounds that many tropical species make can be recorded by pre-programmed devices and analysed to yield measures of biodiversity. Interpreting the resulting soundscapes has developed along two paths: analysing the whole soundscape using acoustic indices, used as a proxy of biodiversity, or focusing on individual species that can be either manually or automatically recognized from the soundscape. Here we develop an intermediate approach to divide the soundscape into frequency categories belonging to broad taxonomic groups of vocalizing animals. While the method was unable to distinguish between amphibian and mammal communities, it was successful in assigning parts of the soundscape as likely produced by birds and insects. Applying the approach in Borneo revealed that, with increasing land use intensity, i) the spectral saturation of the soundscape, a proxy of species richness, loses dawn and dusk peaks, ii) bird acoustic communities lose recurrent diurnal patterns, becoming less synchronized across sites, and that iii) insect Soundscape Saturation increases at night. If soundscapes are partitioned similarly in different regions, our method could be used to bridge soundscape-level and individual-species level analyses. Regaining dawn and dusk peaks, the synchrony of bird acoustic communities, and losing nocturnal dominance of insect could be used as a set of simple indicators of tropical forest retaining high levels of biodiversity.
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Affiliation(s)
- Z Burivalova
- Department of Forest and Wildlife Ecology and The Nelson Institute for Environmental Studies, University of Wisconsin-Madison, Madison, WI, USA.
| | - T M Maeda
- Department of Forest and Wildlife Ecology and The Nelson Institute for Environmental Studies, University of Wisconsin-Madison, Madison, WI, USA
| | - Y Rayadin
- Ecology and Conservation Centre for Tropical Studies (ECOSITROP), East Kalimantan, Indonesia
| | - T Boucher
- The Nature Conservancy, Arlington, VA, USA
| | - P Choksi
- Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY, USA
| | - P Roe
- Electrical Engineering and Computer Science School, Queensland University of Technology, Brisbane, QLD, Australia
| | - A Truskinger
- Electrical Engineering and Computer Science School, Queensland University of Technology, Brisbane, QLD, Australia
| | - E T Game
- The Nature Conservancy, South Brisbane, QLD, Australia; School of Biological Sciences, University of Queensland, St. Lucia, QLD, Australia
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35
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Pillay R, Watson JEM, Hansen AJ, Jantz PA, Aragon-Osejo J, Armenteras D, Atkinson SC, Burns P, Ervin J, Goetz SJ, González-Del-Pliego P, Robinson NP, Supples C, Virnig ALS, Williams BA, Venter O. Humid tropical vertebrates are at lower risk of extinction and population decline in forests with higher structural integrity. Nat Ecol Evol 2022; 6:1840-1849. [PMID: 36329351 DOI: 10.1038/s41559-022-01915-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
Reducing deforestation underpins global biodiversity conservation efforts. However, this focus on retaining forest cover overlooks the multitude of anthropogenic pressures that can degrade forest quality and imperil biodiversity. We use remotely sensed indices of tropical rainforest structural condition and associated human pressures to quantify the relative importance of forest cover, structural condition and integrity (the cumulative effect of condition and pressures) on vertebrate species extinction risk and population trends across the global humid tropics. We found that tropical rainforests of high integrity (structurally intact and under low pressures) were associated with lower likelihood of species being threatened and having declining populations, compared with forest cover alone (without consideration of condition and pressures). Further, species were more likely to be threatened or have declining populations if their geographic ranges contained high proportions of degraded forest than if their ranges contained lower proportions of forest cover but of high quality. Our work suggests that biodiversity conservation policies to preserve forest integrity are now urgently required alongside ongoing efforts to halt deforestation in the hyperdiverse humid tropics.
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Affiliation(s)
- Rajeev Pillay
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, British Columbia, Canada.
| | - James E M Watson
- School of Earth and Environmental Sciences, The University of Queensland, Brisbane, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, Brisbane, Queensland, Australia
| | - Andrew J Hansen
- Department of Ecology, Montana State University, Bozeman, MT, USA
| | - Patrick A Jantz
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | - Jose Aragon-Osejo
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, British Columbia, Canada
| | - Dolors Armenteras
- Departamento de Biología, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Patrick Burns
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | - Jamison Ervin
- United Nations Development Programme, New York, NY, USA
| | - Scott J Goetz
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | | | | | | | | | - Brooke A Williams
- School of Earth and Environmental Sciences, The University of Queensland, Brisbane, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, Brisbane, Queensland, Australia
| | - Oscar Venter
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, British Columbia, Canada
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36
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Nooten SS, Guénard B. Ant communities in disturbed subtropical landscapes: is climate more important than stochastic processes? Oecologia 2022; 200:441-454. [DOI: 10.1007/s00442-022-05276-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022]
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37
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Differentiation and seasonality in suitable microsites of seed dispersal by an assemblage of omnivorous mammals. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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38
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Quasi-experimental analysis of new mining developments as a driver of deforestation in Zambia. Sci Rep 2022; 12:18252. [PMID: 36309592 PMCID: PMC9617878 DOI: 10.1038/s41598-022-22762-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/19/2022] [Indexed: 12/31/2022] Open
Abstract
Mining is a vital part of the global, and many national, economies. Mining also has the potential to drive extensive land cover change, including deforestation, with impacts reaching far from the mine itself. Understanding the amount of deforestation associated with mining is important for conservationists, governments, mining companies, and consumers, yet accurate quantification is rare. We applied statistical matching, a quasi-experimental methodology, along with Bayesian hierarchical generalized linear models to assess the impact on deforestation of new mining developments in Zambia from 2000 to present. Zambia is a globally significant producer of minerals and mining contributes ~ 10% of its gross domestic product and ~ 77% of its exports. Despite extensive deforestation in mining impacted land, we found no evidence that any of the 22 mines we analysed increased deforestation compared with matched control sites. The extent forest lost was therefore no different than would likely have happened without the mines being present due to other drivers of deforestation in Zambia. This suggests previous assessments based on correlative methodologies may overestimate the deforestation impact of mining. However, mining can have a range of impacts on society, biodiversity, and the local environment that are not captured by our analysis.
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39
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Rostami B, Nansen C. Application of active acoustic transducers in monitoring and assessment of terrestrial ecosystem health—A review. Methods Ecol Evol 2022. [DOI: 10.1111/2041-210x.14004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bita Rostami
- College of Agricultural and Environmental Sciences University of California Davis Davis California USA
| | - Christian Nansen
- Department of Entomology and Nematology University of California Davis Davis California USA
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40
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Ayalew AD, Wagner PD, Sahlu D, Fohrer N. Land use change and climate dynamics in the Rift Valley Lake Basin, Ethiopia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:791. [PMID: 36107274 PMCID: PMC9477955 DOI: 10.1007/s10661-022-10393-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Land use and climate dynamics have a pronounced impact on water resources, biodiversity, land degradation, and productivity at all scales. Thus, in this study, we present the spatio-temporal dynamics of land use change and climate aiming to provide a scientific evidence about gains and losses in major land use categories and associated drivers and significancy and homogeneity of climate change. To this end, Landsat images and historical climate data have been used to determine the dynamics. In addition, population census data and land use policy have been considered to assess the potential drivers of land use change. The spatio-temporal land use dynamics have been evaluated using transition matrix and dynamics index. Likewise, shifts in the climate data were analyzed using change point analysis and three homogenous climate zones have been identified using principal component analysis. The results show that, from 1989 to 2019, the areal percentage of agricultural land increased by 27.5%, settlement by 0.8%, and barren land 0.4% while the natural vegetation, wetland, water body, and grass land decreased by 24.5%, 1.6%, 0.5%, and 2.1%, respectively. The land use dynamics have been stronger in the first decade of the study period. An abrupt shift of climate has occurred in the 1980s. In the last four decades, rainfall shows a not significant decreasing trend. However, a significant increasing trend has been observed for temperature. Rapid population growth, agricultural expansion policy, and climate variability have been identified as the underlying drivers of land use dynamics.
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Affiliation(s)
- Ayenew D Ayalew
- Department of Hydrology and Water Resources Management, Christian-Albrechts-University, Kiel, Germany.
| | - Paul D Wagner
- Department of Hydrology and Water Resources Management, Christian-Albrechts-University, Kiel, Germany
| | - Dejene Sahlu
- Department of Hydrology and Water Resources Management, Christian-Albrechts-University, Kiel, Germany
| | - Nicola Fohrer
- Department of Hydrology and Water Resources Management, Christian-Albrechts-University, Kiel, Germany
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41
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Zuluaga S, Vargas FH, Aráoz R, Grande JM. Main aerial top predator of the Andean Montane Forest copes with fragmentation, but may be paying a high cost. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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42
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Jones FA, Hadley AS, Bonner K, Zahawi RA, Robinson WD, Kormann U, Betts MG. Elevated inbreeding in Heliconia tortuosa is determined by tropical forest stand age, isolation, and loss of hummingbird functional diversity. Mol Ecol 2022; 31:4465-4477. [PMID: 35808851 DOI: 10.1111/mec.16607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 06/10/2022] [Accepted: 06/29/2022] [Indexed: 11/27/2022]
Abstract
Forest conversion and habitat loss are major threats to biological diversity. Forest regeneration can mitigate the negative effects of old growth forest loss on species diversity, but less is known about the extent to which forest loss reduces genetic diversity in remnant populations and whether secondary forests play a role in the maintenance of genetic diversity. We quantified genetic diversity in a tropical hummingbird-pollinated understory herb, Heliconia tortuosa, across a landscape mosaic of primary and secondary forest regrowth. Using microsatellite genotypes from >850 adult and juvenile plants within 33 forest patches and extensive bird surveys, we examined the effect of contemporary and historical landscape features including forest age (primary vs. secondary forest), stand isolation, and pollinator assemblages on genetic diversity and levels of inbreeding in H. tortuosa. We found that inbreeding was up to 3x higher in secondary forest, and this effect was amplified with reductions in primary forest in the surrounding landscape through reduced observed heterozygosity in isolated fragments. Inbreeding in forest patches was negatively correlated with the local frequency of specialist long-distance foraging traplining hummingbirds. Traplining hummingbirds therefore appear to facilitate mating among unrelated plants - an inference we tested using empirically parameterized simulations. Higher levels of inbreeding in H. tortuosa are therefore associated with reduced functional diversity of hummingbirds in secondary forests and forest patches isolated from primary forests. Our findings suggest a cryptic consequence of primary forest loss and secondary forest regeneration through the disruption of mutualistic interactions resulting in the erosion of genetic diversity in a common understory plant.
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Affiliation(s)
- F Andrew Jones
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, USA.,Smithsonian Tropical Research Institute, Panama City, Panama
| | - Adam S Hadley
- Forest Biodiversity Research Network, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
| | - Kaitlin Bonner
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, USA.,Department of Biology, St. John Fisher College, Rochester, NY, USA
| | - Rakan A Zahawi
- School of Life Sciences and Lyon Arboretum, University of Hawai'i at Mānoa, Honolulu, HI, USA.,Charles Darwin Foundation, Puerto Ayora, Galapagos, Ecuador
| | - W Douglas Robinson
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, USA
| | - Urs Kormann
- Forest Biodiversity Research Network, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA.,Division of Forest Sciences, School of Agricultural, Forest & Food Sciences, Bern University of Applied Sciences, Zollikofen, Switzerland.,Swiss Ornithological Institute, Sempach, Switzerland
| | - Matthew G Betts
- Forest Biodiversity Research Network, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
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43
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Low level of anthropization linked to harsh vertebrate biodiversity declines in Amazonia. Nat Commun 2022; 13:3290. [PMID: 35672313 PMCID: PMC9174194 DOI: 10.1038/s41467-022-30842-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 05/12/2022] [Indexed: 12/03/2022] Open
Abstract
Assessing the impact of human activity on ecosystems often links local biodiversity to disturbances measured within the same locality. However, remote disturbances may also affect local biodiversity. Here, we used environmental DNA metabarcoding to evaluate the relationships between vertebrate biodiversity (fish and mammals) and disturbance intensity in two Amazonian rivers. Measurements of anthropic disturbance -here forest cover losses- were made from the immediate vicinity of the biodiversity sampling sites to up to 90 km upstream. The findings suggest that anthropization had a spatially extended impact on biodiversity. Forest cover losses of <11% in areas up to 30 km upstream from the biodiversity sampling sites were linked to reductions of >22% in taxonomic and functional richness of both terrestrial and aquatic fauna. This underscores the vulnerability of Amazonian biodiversity even to low anthropization levels. The similar responses of aquatic and terrestrial fauna to remote disturbances indicate the need for cross-ecosystem conservation plans that consider the spatially extended effects of anthropization. It is unclear how far the impact of deforestation can spread. Here the authors analyse freshwater eDNA data along two rivers in the Amazon forest, and find that low levels of deforestation are linked to substantial reductions of fish and mammalian diversity downstream.
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44
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Invasive rat drives complete collapse of native small mammal communities in insular forest fragments. Curr Biol 2022; 32:2997-3004.e2. [PMID: 35709755 DOI: 10.1016/j.cub.2022.05.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/04/2022] [Accepted: 05/20/2022] [Indexed: 11/24/2022]
Abstract
As tropical forests are becoming increasingly fragmented, understanding the magnitude and time frame of biodiversity declines is vital for 21st century sustainability goals. Over three decades, we monitored post-isolation changes in small mammal species richness and abundance within a forest landscape fragmented by the construction of a dam in Thailand.1,2 We observed the near-complete collapse of species richness within 33 years, with no evidence of a recolonization effect across repeatedly sampled islands. Our results further revealed a decline in species richness as island size decreased and isolation time increased, accelerated by the increasing dominance of the ubiquitous Malayan field rat, Rattus tiomanicus. This species was already hyper-abundant on smaller islands in the initial surveys (1992-1994, 66% of individuals) but became monodominant on all islands, regardless of island size, by the most recent survey (2020, 97%). Our results suggest that insular forest fragments are highly susceptible to rapid species loss, particularly due to the competitive nature of Rattus accelerating the rate at which extinction debts are paid. To mitigate these impacts, reducing the extent of habitat degradation, as triggered by fragmentation and exacerbated by isolation time, can help to sustain native biodiversity while averting Rattus hyper-abundance.
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45
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Forest degradation drives widespread avian habitat and population declines. Nat Ecol Evol 2022; 6:709-719. [PMID: 35484222 PMCID: PMC9177422 DOI: 10.1038/s41559-022-01737-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 03/20/2022] [Indexed: 12/24/2022]
Abstract
In many regions of the world, forest management has reduced old forest and simplified forest structure and composition. We hypothesized that such forest degradation has resulted in long-term habitat loss for forest-associated bird species of eastern Canada (130,017 km2) which, in turn, has caused bird-population declines. Despite little change in overall forest cover, we found substantial reductions in old forest as a result of frequent clear-cutting and a broad-scale transformation to intensified forestry. Back-cast species distribution models revealed that breeding habitat loss occurred for 66% of the 54 most common species from 1985 to 2020 and was strongly associated with reduction in old age classes. Using a long-term, independent dataset, we found that habitat amount predicted population size for 94% of species, and habitat loss was associated with population declines for old-forest species. Forest degradation may therefore be a primary cause of biodiversity decline in managed forest landscapes.
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46
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Li X, Hu W, Bleisch WV, Li Q, Wang H, Lu W, Sun J, Zhang F, Ti B, Jiang X. Functional diversity loss and change in nocturnal behavior of mammals under anthropogenic disturbance. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2022; 36:e13839. [PMID: 34533235 PMCID: PMC9299805 DOI: 10.1111/cobi.13839] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
In the Anthropocene, understanding the impacts of anthropogenic influence on biodiversity and behavior of vulnerable wildlife communities is increasingly relevant to effective conservation. However, comparative studies aimed at disentangling the concurrent effect of different types of human disturbance on multifaceted biodiversity and on activity patterns of mammals are surprisingly rare. We applied a multiregion community model to separately estimate the effects of cumulative human modification (e.g., settlement, agriculture, and transportation) and human presence (aggregated presence of dogs, people, and livestock) on species richness and functional composition of medium- and large-bodied mammals based on camera trap data collected across 45 subtropical montane forests. We divided the detected mammal species into three trophic guilds-carnivores, herbivores, and omnivores-and assessed the nocturnal shifts of each guild in response to anthropogenic activities. Overall, species richness tended to increase (β coefficient = 0.954) as human modification increased but richness decreased as human presence increased (β = -1.054). Human modification was associated with significantly lower functional diversity (mean nearest taxon distance [MNTD], β = -0.134; standardized effect sizes of MNTD, β = -0.397), community average body mass (β = -0.240), and proportion of carnivores (β = -0.580). Human presence was associated with a strongly reduced proportion of herbivores (β = -0.522), whereas proportion of omnivores significantly increased as human presence (β = 0.378) and habitat modification (β = 0.419) increased. In terms of activity patterns, omnivores (β = 12.103) and carnivores (β = 9.368) became more nocturnal in response to human modification. Our results suggest that human modification and human presence have differing effects on mammals and demonstrate that anthropogenic disturbances can lead to drastic loss of functional diversity and result in a shift to nocturnal behavior of mammals. Conservation planning should consider concurrent effects of different types of human disturbance on species richness, functional diversity, and behavior of wildlife communities.
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Affiliation(s)
- Xueyou Li
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina
| | - Wenqiang Hu
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina
| | | | - Quan Li
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina
| | - Hongjiao Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina
| | - Wen Lu
- Nuozhadu Provincial Nature Reserve Administrative BureauPu'erChina
| | - Jun Sun
- Gongshan Administrative Sub‐Bureau of Gaoligongshan National Nature ReserveNujiangChina
| | - Fuyou Zhang
- Baoshan Administrative Bureau of Gaoligongshan National Nature ReserveBaoshanChina
| | - Bu Ti
- Deqin Administrative Sub‐Bureau of Baimaxueshan National Nature ReserveDiqingChina
| | - Xuelong Jiang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina
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47
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Is There Spatial Dependence or Spatial Heterogeneity in the Distribution of Vegetation Greening and Browning in Southeastern China? FORESTS 2022. [DOI: 10.3390/f13060840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Vegetation is an indispensable component of terrestrial ecosystems and plays an irreplaceable role in mitigation of climate change. Global vegetation changes (i.e., greening and browning) still occur frequently, however, little is known about the spatial relationships between these two processes. Based on the normalized difference vegetation index (NDVI) dataset from 1998 to 2018 in Fujian Province, China. The Theil-Sen and Mann-Kendall tests were used to explore temporal changes in vegetation growing, then the spatial relationships of greening and browning was distinguished with bivariate spatial autocorrelation analysis, and the spatial variation in the relationship between vegetation changes and driving factors was explored by the geographical detector. The results showed that from 1998 to 2018, the average NDVI value increased from 0.75 to 0.83; 89.61% of the study area experienced vegetation greening, while 5.7% experienced significant browning, with active vegetation changes occurred along roads and nearby cities. The spatial autocorrelation results showed that the spatial relationships between vegetation greening and browning were dominated by spatial heterogeneity (i.e., high greening and low browning, H-L clusters accounting for 60% and low greening and high browning, L-H clusters accounting for 14%), but we also revealed that there were still quite a few places (4%) with spatial dependence (i.e., high greening and browning, H-H clusters), occurring around urban areas and along roads. The factor detector indicated that the nighttime light intensity was among the most dominant factor of vegetation changes, followed by elevation and slope. Although the individual effect of the distance to roads was relatively weak on the vegetation changes, its indirect effect was found to be the strongest by the interaction detector, which was obtained from the interactions much larger than its independent impact. Simultaneously, the risk detector revealed that the greening preferred occurring in places with lower nighttime light intensity (<1.1 nW cm−2sr−1), higher elevation (>43.4 m) and slope (>6.3°). Moreover, we found that the vegetation changes primarily occurred within a distance of 1685.4 m from roads. Our findings could deepen the understanding of vegetation change patterns and provide advice for mitigating the impact on the vegetation changes.
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48
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Wood waste utilization and associated product development from under-utilized low-quality wood and its prospects in Nepal. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05061-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
AbstractWood waste has the potential to be used in making a variety of goods, including engineered wood products, energy generation (heat and electricity), mulching, and animal bedding. These inexpensive and underutilized feedstocks have the potential to increase the added value of wood wastes. This paper aims to review the different possibilities on wood waste utilization and their prospects in Nepal. This information helps to find the proper way for future development of wood waste to deliver the best outcomes for the environment and economy. The review is based on an in-depth examination of credible literature and official statistical data. The study showed Nepal has not utilized wood waste except for firewood and a few engineered wood products. The problem with wood waste is the lack of adaptation of advanced technologies and the lack of institutions concerned with the benefits of utilization of those waste. This review concludes that wood waste can be a potential source for the production of different materials but the government should develop effective waste management rules to maximize the value of wood waste resources.
Graphical abstract
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49
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Edwards M, Lisgo K, Leroux S, Krawchuk M, Cumming S, Schmiegelow F. Conservation planning integrating natural disturbances: Estimating minimum reserve sizes for an insect disturbance in the boreal forest of eastern Canada. PLoS One 2022; 17:e0268236. [PMID: 35533149 PMCID: PMC9084528 DOI: 10.1371/journal.pone.0268236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 04/25/2022] [Indexed: 11/19/2022] Open
Abstract
Large natural disturbances such as insect outbreaks and fire are important processes for biodiversity in forest landscapes. However, few methods exist for incorporating natural disturbances into conservation planning. Intact forest landscapes, such as in the North American boreal forest, can produce large natural disturbance footprints. They also have the potential to support large reserves but size estimates based on natural disturbance are needed to guide reserve design. Historical fire data have been used to estimate minimum dynamic reserves, reserve size estimates based on maintaining natural disturbance dynamics and ensuring resilience to large natural disturbance events. While this has been a significant step towards incorporating natural disturbance into reserve design, managers currently lack guidance on how to apply these concepts in areas where fire is not the dominant natural disturbance. We generalize the minimum dynamic reserve framework to accommodate insect outbreaks and demonstrate the framework in a case study for eastern spruce budworm (Choristoneura fumiferana) in the Canadian boreal forest. Our methods use geospatial analysis to identify minimum dynamic reserves based on a set of spatially explicit initial conditions, and simulation models to test for the maintenance of a set of dynamic conditions over time. We found considerable variability in minimum dynamic reserve size depending on the size of historic budworm disturbance events and the spatial patterns of disturbance-prone vegetation types. The minimum dynamic reserve framework provides an approach for incorporating wide-ranging natural disturbances into biodiversity conservation plans for both pro-active planning in intact landscapes, and reactive planning in more developed regions.
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Affiliation(s)
- Marc Edwards
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
- * E-mail:
| | - Kim Lisgo
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
| | - Shawn Leroux
- Department of Biology, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Meg Krawchuk
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, United States of America
| | - Steve Cumming
- Département des sciences du bois et de la forêt, Université Laval, QC, Canada
| | - Fiona Schmiegelow
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
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50
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Bateman IJ, Anderson K, Argles A, Belcher C, Betts RA, Binner A, Brazier RE, Cho FHT, Collins RM, Day BH, Duran‐Rojas C, Eisenbarth S, Gannon K, Gatis N, Groom B, Hails R, Harper AB, Harwood A, Hastings A, Heard MS, Hill TC, Inman A, Lee CF, Luscombe DJ, MacKenzie AR, Mancini MC, Morison JIL, Morris A, Quine CP, Snowdon P, Tyler CR, Vanguelova EI, Wilkinson M, Williamson D, Xenakis G. A review of planting principles to identify the right place for the right tree for ‘net zero plus’ woodlands: Applying a place‐based natural capital framework for sustainable, efficient and equitable (
SEE
) decisions. PEOPLE AND NATURE 2022. [DOI: 10.1002/pan3.10331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Ian J. Bateman
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Karen Anderson
- Environment and Sustainability Institute University of Exeter, Penryn Campus Cornwall UK
| | - Arthur Argles
- College of Engineering, Mathematics, and Physical Sciences University of Exeter Exeter UK
| | - Claire Belcher
- College of Life and Environmental Sciences University of Exeter Exeter UK
| | - Richard A. Betts
- University of Exeter Global Systems Institute Exeter UK
- Met Office Hadley Centre Exeter UK
| | - Amy Binner
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Richard E. Brazier
- College of Life and Environmental Sciences University of Exeter Exeter UK
| | - Frankie H. T. Cho
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Rebecca M. Collins
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Brett H. Day
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Carolina Duran‐Rojas
- College of Engineering, Mathematics, and Physical Sciences University of Exeter Exeter UK
| | - Sabrina Eisenbarth
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Kate Gannon
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Naomi Gatis
- College of Life and Environmental Sciences University of Exeter Exeter UK
| | - Ben Groom
- Dragon Capital Chair in Biodiversity Economics, Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | | | - Anna B. Harper
- College of Engineering, Mathematics, and Physical Sciences University of Exeter Exeter UK
| | - Amii Harwood
- Centre for Social and Economic Research on the Global Environment (CSERGE), School of Environmental Sciences University of East Anglia Norwich UK
| | - Astley Hastings
- Institute of Biological and Environmental Science University of Aberdeen Aberdeen UK
| | | | - Timothy C. Hill
- College of Life and Environmental Sciences University of Exeter Exeter UK
| | - Alex Inman
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - Christopher F. Lee
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | - David J. Luscombe
- College of Life and Environmental Sciences University of Exeter Exeter UK
| | - Angus R. MacKenzie
- Director, Birmingham Institute of Forest Research, School of Geography, Earth and Environmental Sciences University of Birmingham Birmingham UK
| | - Mattia C. Mancini
- Land, Environment, Economics and Policy Institute (LEEP), Department of Economics University of Exeter Business School Exeter UK
| | | | - Aaron Morris
- Forest Research, Northern Research Station Roslin UK
| | | | - Pat Snowdon
- Head of Economics and Woodland Carbon Code, Scottish Forestry Edinburgh UK
| | - Charles R. Tyler
- Biosciences, College of Life and Environmental Sciences University of Exeter Exeter UK
| | | | | | - Daniel Williamson
- College of Engineering, Mathematics, and Physical Sciences University of Exeter Exeter UK
| | | |
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