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Zhang H, Bearup D, Barabás G, Fagan WF, Nijs I, Chen D, Liao J. Complex nonmonotonic responses of biodiversity to habitat destruction. Ecology 2023; 104:e4177. [PMID: 37782819 DOI: 10.1002/ecy.4177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/01/2023] [Accepted: 09/08/2023] [Indexed: 10/04/2023]
Abstract
It has typically been assumed that habitat destruction, characterized by habitat loss and fragmentation, has consistently negative effects on biodiversity. While numerous empirical studies have shown the detrimental effects of habitat loss, debate continues as to whether habitat fragmentation has universally negative effects. To explore the effects of habitat fragmentation, we developed a simple model for site-occupancy dynamics in fragmented landscapes. With the model, we demonstrate that a competition-colonization trade-off can result in nonlinear oscillatory responses in biodiversity to both habitat loss and fragmentation. However, the overall pattern of habitat loss reducing species richness is still established, in line with empirical observations. Interestingly, the existence of localized oscillations in biodiversity can explain the mixed responses of species richness to habitat fragmentation per se observed in nature, thereby reconciling the debate on the fragmentation-diversity relationship. Therefore, this study offers a parsimonious mechanistic explanation for empirically observed biodiversity patterns in response to habitat destruction.
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Affiliation(s)
- Helin Zhang
- Key Laboratory of Poyang Lake Wetland and Watershed Research, School of Geography and Environment, Jiangxi Normal University, Nanchang, China
| | - Daniel Bearup
- School of Mathematics, Statistics and Actuarial Sciences, University of Kent, Canterbury, UK
| | - György Barabás
- Division of Theoretical Biology, Department IFM, Linköping University, Linköping, Sweden
- Institute of Evolution, Centre for Ecological Research, Budapest, Hungary
| | - William F Fagan
- Department of Biology, University of Maryland, College Park, Maryland, USA
| | - Ivan Nijs
- Research Group Plants and Ecosystems, Department of Biology, University of Antwerp, Wilrijk, Belgium
| | - Dongdong Chen
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Jinbao Liao
- Key Laboratory of Poyang Lake Wetland and Watershed Research, School of Geography and Environment, Jiangxi Normal University, Nanchang, China
- Centre for Invasion Biology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, China
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Zou H, Chen B, Zhang B, Zhou X, Zhang X, Zhang X, Wang J. Conservation planning for the endemic and endangered medicinal plants under the climate change and human disturbance: a case study of Gentiana manshurica in China. FRONTIERS IN PLANT SCIENCE 2023; 14:1184556. [PMID: 37564387 PMCID: PMC10410459 DOI: 10.3389/fpls.2023.1184556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 07/04/2023] [Indexed: 08/12/2023]
Abstract
Human activities and climate change have significantly impacted the quantity and sustainable utilization of medicinal plants. Gentiana manshurica Kitagawa, a high-quality original species of Gentianae Radix et Rhizoma, has significant medicinal value. However, wild resources have experienced a sharp decline due to human excavation, habitat destruction, and other factors. Consequently, it has been classified as an Endangered (EN) species on the IUCN Red List and is considered a third-level national key-protected medicinal material in China. The effects of climate change on G. manshurica are not yet known in the context of the severe negative impacts of climate change on most species. In this study, an optimized MaxEnt model was used to predict the current and future potential distribution of G. manshurica. In addition, land use data in 1980, 2000, and 2020 were used to calculate habitat quality by InVEST model and landscape fragmentation by the Fragstats model. Finally, using the above-calculated results, the priority protection areas and wild tending areas of G. manshurica were planned in ZONATION software. The results show that the suitable area is mainly distributed in the central part of the Songnen Plain. Bio15, bio03, bio01, and clay content are the environmental variables affecting the distribution. In general, the future potential distribution is expected to show an increasing trend. However, the species is expected to become threatened as carbon emission scenarios and years increase gradually. At worst, the high suitability area is expected to disappear completely under SSP585-2090s. Combined with the t-test, this could be due to pressure from bio01. The migration trends of climate niche centroid are inconsistent and do not all move to higher latitudes under different carbon emission scenarios. Over the past 40 years, habitat quality in the current potential distribution has declined yearly, and natural habitat has gradually fragmented. Existing reserves protect only 9.52% of G. manshurica's priority conservation area. To avoid extinction risk and increase the practicality of the results, we clarified the hotspot counties of priority protection area gaps and wild tending areas. These results can provide an essential reference and decision basis for effectively protecting G. manshurica under climate change.
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Affiliation(s)
- Hui Zou
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Bingrui Chen
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Boyan Zhang
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Xinyu Zhou
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Xiyuan Zhang
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Xinxin Zhang
- Heilongjiang Research Center of Genuine Wild Medicinal Materials Germplasm Resources, School of Life Sciences and Technology, Harbin Normal University, Harbin, China
| | - Jianwei Wang
- College of Basic Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
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Catella SA, Abbott KC. Effects of abiotic heterogeneity on species densities and interaction strengths lead to different spatial biodiversity patterns. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1071375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
During community assembly, abiotic factors can influence species at multiple stages during their life history, for example by affecting early settlement or establishment probabilities and thus initial densities (route 1: abiotic effects on density), or later by affecting the strength of biotic interactions during subsequent life stages (route 2: abiotic effects on interaction strengths). Since real abiotic landscapes are multivariate and complex, how these two distinct routes of abiotic influence affect community patterns has not been quantified. Using an individual-based spatially explicit simulation model, we compared scenarios where abiotic conditions shaped initial densities, interaction strengths, or both, of plant species with unique abiotic niches. We then partitioned the effect of the abiotic landscape on community patterns into components arising from variable density, variable interaction strengths, and their interaction. Even when plants responded to identical landscapes, variable density and variable interaction strengths led to different community patterns, and their combined effects were non-additive. Variable density promoted more spatial structure, while variable interaction strengths promoted higher local species richness. We highlight important implications these findings have in applied plant community ecology.
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Liu S, Han B, Li W. Self-healing time of population under dynamic disturbance. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kazo L, Lovejoy T, Luther D. Effects of forest fragmentation on the weight of understory birds at the Biological Dynamics of Forest Fragments Project in Amazonia. Biotropica 2022. [DOI: 10.1111/btp.13108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lara Kazo
- Environmental Science and Policy Department George Mason University Fairfax Virginia USA
| | - Thomas Lovejoy
- Environmental Science and Policy Department George Mason University Fairfax Virginia USA
| | - David Luther
- Biology Department George Mason University Fairfax Virginia USA
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Häussler J, Ryser R, Brose U. Invasive spread in meta‐food‐webs depends on landscape structure, fertilization and species characteristics. OIKOS 2021. [DOI: 10.1111/oik.07503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johanna Häussler
- Theoretical Biology, IFM, Linköping Univ. Linköping Sweden
- EcoNetLab, Theory in Biodiversity Science German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Remo Ryser
- EcoNetLab, Theory in Biodiversity Science German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
- Inst. of Biodiversity, Friedrich Schiller Univ. Jena Jena Germany
| | - Ulrich Brose
- EcoNetLab, Theory in Biodiversity Science German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
- Inst. of Biodiversity, Friedrich Schiller Univ. Jena Jena Germany
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Gatmiry ZS, Hafezalkotob A, Khakzar bafruei M, Soltani R. Food web conservation vs. strategic threats: A security game approach. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2021.109426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Muchuku JK, Gichira AW, Zhao SY, Chen JM, Chen LY, Wang QF. Distribution pattern and habitat preference for Lobelia species (Campanulaceae) in five countries of East Africa. PHYTOKEYS 2020; 159:45-60. [PMID: 32973388 PMCID: PMC7486314 DOI: 10.3897/phytokeys.159.54341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
East Africa is one of the centres of distribution and diversity for Lobelia L. (Campanulaceae, sub-family Lobelioideae). Lobelia habitats in East Africa have been facing habitat fragmentation and loss, which are recognised as a major threat to biodiversity. However, previous plant conservation studies in East Africa only focused on protected areas and ignored unprotected areas. Future conservation strategies of plants, such as Lobelia, will depend on knowledge of their distribution patterns and habitat preference in East Africa. To understand the distribution pattern and the habitat preference of Lobelia in five countries (Kenya, Uganda, Tanzania, Rwanda and Burundi) of East Africa, we conducted a literature review in the seven major vegetation regions (afro-alpine, afro-montane forest, drier savannah, grasslands, wetter savannah, Zambezian woodland and semi-desert and desert). We also employed meander and patterned searches, which allowed greater opportunities for recording Lobelia species. Our results showed that the genus is distributed in all of the seven regions of the five countries with 54 taxa. The afro-montane forest region, with 41 taxa, is the richest in species diversity, followed by the Zambezian woodland region with 18 taxa. The semi-desert and desert region has the lowest number with only four taxa. The afro-alpine region has 15 taxa, although the region is the smallest by area. The herbaceous type was found in all regions, while the giant type has a clear preference for the afro-alpine and afro-montane forest regions. Future conservation for Lobelia should consider its habitat preference by, for example, focusing on the afro-alpine and afro-montane forest regions. This study will facilitate the setting of future conservation strategies for Lobelia.
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Affiliation(s)
- John K. Muchuku
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, ChinaWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Department of Botany, Jomo Kenyatta University of Agriculture and Technology, Nairobi 62000-00200, KenyaJomo Kenyatta University of Agriculture and TechnologyNairobiKenya
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
| | - Andrew W. Gichira
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, ChinaWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
| | - Shu-Ying Zhao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, ChinaSouth-Central University for NationalitiesWuhanChina
| | - Jin-Ming Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, ChinaWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
| | - Ling-Yun Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, ChinaWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, ChinaChina Pharmaceutical UniversityNanjingChina
| | - Qing-Feng Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, ChinaWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
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Liao J, Xi X, Bearup D, Sun S. Metacommunity robustness of plant-fly-wasp tripartite networks with specialization to habitat loss. Ecology 2020; 101:e03071. [PMID: 32302011 DOI: 10.1002/ecy.3071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 01/07/2020] [Accepted: 03/16/2020] [Indexed: 11/10/2022]
Abstract
Recent observations have found plant-species-specific fly-host selection (i.e., specialization) of wasp parasitoids (wasps) in plant-fly-wasp (P-F-W) tripartite networks, yet no study has explored the dynamical implications of such high-order specialization for the persistence of this network. Here we develop a patch-dynamic framework for a unique P-F-W tripartite network with specialization observed in eastern Tibetan Plateau and explore its metacommunity robustness to habitat loss. We show that specialization in parasitoidism promotes fly species diversity, while the richness of both plant and wasp decreases. Compared to other two null models, real network structure favors plant species coexistence but increases the extinction risk for both flies and wasps. However, these effects of specialization and network structure would be weakened and ultimately disappear with increasing habitat loss. Interestingly, intermediate levels of habitat loss can maximize the diversity of flies and wasps, while increasing or decreasing habitat loss results in more species losses, supporting intermediate disturbance hypothesis. Finally, we observe that high levels of habitat loss initiate a bottom-up cascade of species extinction from plants to both flies and wasps, resulting in a rapid collapse of the whole tripartite networks. Overall, this theoretical framework is the first attempt to characterize the dynamics of whole tripartite metacommunities interacting in realistic high-order ways, offering new insights into complex multipartite networks.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, School of Geography and Environment, Jiangxi Normal University, Ziyang Road 99, 330022, Nanchang, China
| | - Xinqiang Xi
- Department of Ecology, School of Life Science, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Daniel Bearup
- School of Mathematics, Statistics and Actuarial Sciences, University of Kent, Parkwood Road, Canterbury, CT2 7FS, United Kingdom
| | - Shucun Sun
- Department of Ecology, School of Life Science, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
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12
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Liao J, Bearup D, Fagan WF. The role of omnivory in mediating metacommunity robustness to habitat destruction. Ecology 2020; 101:e03026. [PMID: 32083738 DOI: 10.1002/ecy.3026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 11/01/2019] [Accepted: 01/29/2020] [Indexed: 11/07/2022]
Abstract
Omnivores have long been known to play an important role in determining the stability of ecological communities. Recent theoretical studies have suggested that they may also increase the resilience of their communities to habitat destruction, one of the major drivers of species extinctions globally. However, these outcomes were obtained for minimal food webs consisting of only a single omnivore and its prey species, while much more complex communities can be anticipated in nature. In this study, we undertake a systematic comparative analysis of the robustness of metacommunities containing various omnivory structures to habitat loss and fragmentation using a mathematical model. We observe that, in general, omnivores are better able to survive facing habitat destruction than specialist predators of similar trophic level. However, the community as a whole does not always benefit from the presence of omnivores, as they may drive their intraguild prey to extinction. We also analyze the frequency with which these modules occur in a set of empirical food webs, and demonstrate that variation in their rate of occurrence is consistent with our model predictions. Our findings demonstrate the importance of considering the complete food web in which an omnivore is embedded, suggesting that future study should focus on more holistic community analysis.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, School of Geography and Environment, Jiangxi Normal University, Ziyang Road 99, Nanchang, 330022, China
| | - Daniel Bearup
- School of Mathematics, Statistics and Actuarial Sciences, University of Kent, Parkwood Road, Canterbury, CT2 7FS, United Kingdom
| | - William F Fagan
- Department of Biology, University of Maryland, College Park, Maryland, 20742, USA
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Stipek C, Santos R, Babcock E, Lirman D. Modelling the resilience of seagrass communities exposed to pulsed freshwater discharges: A seascape approach. PLoS One 2020; 15:e0229147. [PMID: 32084176 PMCID: PMC7034918 DOI: 10.1371/journal.pone.0229147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 01/30/2020] [Indexed: 11/18/2022] Open
Abstract
Submerged aquatic vegetation (SAV) communities display complex patch dynamics at seascape scales that are presently poorly understood as most studies of disturbance on SAV habitats have focused on changes in biomass at small, quadrat-level scales. In this study, analyses of remote sensing imagery and population modelling were applied to understand SAV patch dynamics and forecast the fate of these important communities in Biscayne Bay, Miami, Florida, US. We evaluated how the proximity of freshwater canals influences seagrass-dominated SAV patch dynamics and, in turn, how patch-size structure influences the stability of seagrass seascapes under different salinity scenarios. Seagrass fragmentation rates were higher in sites adjacent to freshwater canals compared to sites distant from the influences of freshwater deliveries. Furthermore, we documented a clear trend in patch mortality rates with respect to patch size, with the smallest patches (50 m2) undergoing 57% annual mortality on average. The combination of higher fragmentation rates and the higher mortality of smaller seagrass patches in habitats exposed to pulses of low salinity raises concern for the long-term persistence of seagrass meadows in nearshore urban habitats of Biscayne Bay that are presently targets of Everglades restoration. Our model scenarios that simulated high fragmentation rates resulted in SAV population collapses, regardless of SAV recruitment rates. The combined remote sensing and population modelling approach used here provides evaluation and predictive tools that can be used by managers to track seagrass status and stress-response at seascape levels not available previously for the seagrasses of South Florida.
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Affiliation(s)
- Clinton Stipek
- Marine Biology and Ecology Department, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, United States of America
- * E-mail:
| | - Rolando Santos
- College of Arts, Sciences and Education, Florida International University, Miami, Florida, United States of America
| | - Elizabeth Babcock
- Marine Biology and Ecology Department, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, United States of America
| | - Diego Lirman
- Marine Biology and Ecology Department, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, United States of America
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Chen D, Liao J, Bearup D, Li Z. Habitat heterogeneity mediates effects of individual variation on spatial species coexistence. Proc Biol Sci 2020; 287:20192436. [PMID: 31964303 PMCID: PMC7015336 DOI: 10.1098/rspb.2019.2436] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/18/2019] [Indexed: 11/12/2022] Open
Abstract
Numerous studies have documented the importance of individual variation (IV) in determining the outcome of competition between species. However, little is known about how the interplay between IV and habitat heterogeneity (i.e. variation and spatial autocorrelation in habitat quality) affects species coexistence at the landscape scale. Here, we incorporate habitat heterogeneity into a competition model with IV, in order to explore the mechanism of spatial species coexistence. We find that individual-level variation and habitat heterogeneity interact to promote species coexistence, more obviously at lower dispersal rates. This is in stark contrast to early non-spatial models, which predicted that IV reinforces competitive hierarchies and therefore speeds up species exclusion. In essence, increasing variation in patch quality and/or spatial habitat autocorrelation moderates differences in the competitive ability of species, thereby allowing species to coexist both locally and globally. Overall, our theoretical study offers a mechanistic explanation for emerging empirical evidence that both habitat heterogeneity and IV promote species coexistence and therefore biodiversity maintenance.
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Affiliation(s)
- Dongdong Chen
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, School of Geography and Environment, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, People's Republic of China
| | - Daniel Bearup
- School of Mathematics, Statistics and Actuarial Sciences, University of Kent, Parkwood Road, Canterbury CT2 7FS, UK
| | - Zhenqing Li
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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Mestre F, Pita R, Mira A, Beja P. Species traits, patch turnover and successional dynamics: when does intermediate disturbance favour metapopulation occupancy? BMC Ecol 2020; 20:2. [PMID: 31900154 PMCID: PMC6942360 DOI: 10.1186/s12898-019-0273-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 12/24/2019] [Indexed: 11/15/2022] Open
Abstract
Background In fragmented landscapes, natural and anthropogenic disturbances coupled with successional processes result in the destruction and creation of habitat patches. Disturbances are expected to reduce metapopulation occupancy for species associated with stable habitats, but they may benefit species adapted to transitory habitats by maintaining a dynamic mosaic of successional stages. However, while early-successional species may be favoured by very frequent disturbances resetting successional dynamics, metapopulation occupancy may be highest at intermediate disturbance levels for species with mid-successional habitat preferences, though this may be conditional on species traits and patch network characteristics. Here we test this ‘intermediate disturbance hypothesis’ applied to metapopulations (MIDH), using stochastic patch occupancy simulation modelling to assess when does intermediate disturbance favour metapopulation occupancy. We focused on 54 virtual species varying in their habitat preferences, dispersal abilities and local extinction and colonization rates. Long-term metapopulation dynamics was estimated in landscapes with different habitat amounts and patch turnover rates (i.e. disturbance frequency). Results Equilibrium metapopulation occupancy by late-successional species strongly declined with increasing disturbance frequency, while occupancy by early-successional species increased with disturbance frequency at low disturbance levels and tended to level-off thereafter. Occupancy by mid-successional species tended to increase along with disturbance frequency at low disturbance levels and declining thereafter. Irrespective of habitat preferences, occupancy increased with the amount of habitat, and with species dispersal ability and colonisation efficiency. Conclusions Our study suggests that MIDH is verified only for species associated with mid-successional habitats. These species may be particularly sensitive to land use changes causing either increases or decreases in disturbance frequency. This may be the case, for instance, of species associated with traditional agricultural and pastoral mosaic landscapes, where many species disappear either through intensification or abandonment processes that change disturbance frequency.
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Affiliation(s)
- Frederico Mestre
- MED Institute, Universidade de Évora, Pólo da Mitra, 7006-554, Évora, Portugal. .,"Rui Nabeiro" Biodiversity Chair, Universidade de Évora, Casa Cordovil 2ª Andar, Rua Dr. Joaquim Henrique da Fonseca, 7000-890, Évora, Portugal.
| | - Ricardo Pita
- MED Institute, Universidade de Évora, Pólo da Mitra, 7006-554, Évora, Portugal.,Unidade de Biologia da Conservação/Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Núcleo da Mitra, Apartado 94, 7002-554, Évora, Portugal
| | - António Mira
- MED Institute, Universidade de Évora, Pólo da Mitra, 7006-554, Évora, Portugal.,Unidade de Biologia da Conservação/Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Núcleo da Mitra, Apartado 94, 7002-554, Évora, Portugal
| | - Pedro Beja
- EDP Biodiversity Chair, CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus de Vairão, Vila do Conde, Portugal.,CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
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Santos RO, Varona G, Avila CL, Lirman D, Collado-Vides L. Implications of macroalgae blooms to the spatial structure of seagrass seascapes: The case of the Anadyomene spp. (Chlorophyta) bloom in Biscayne Bay, Florida. MARINE POLLUTION BULLETIN 2020; 150:110742. [PMID: 31787339 DOI: 10.1016/j.marpolbul.2019.110742] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Macroalgal blooms are becoming an increasing problem in coastal regions worldwide and have been associated with a widespread decline of seagrass habitats. It is critical to measure macroalgal bloom (MB) impacts at broad spatial scales since seagrass seascape characteristics can influence feedback processes that regulate the resilience of seagrass ecosystems. We assessed the broad-scale spatial impacts of an MB formed by Anadyomene spp. on the seagrass seascapes in Biscayne Bay (Miami, US) using a multi-scale seascape approach. By integrating field and remote sensing data, our multi-scale approach showed significant reductions in seagrass foliage cover and a seascape structure transformation across the bloom extent. The landscape cover and patch extensiveness declined after the MB peak. Other spatial pattern metrics also showed that the seagrass seascape structure got fragmented. We demonstrated that a persistent MB could transform the structure of seagrass seascapes, hindering the resilience of seagrass habitats.
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Affiliation(s)
- Rolando O Santos
- Institute of Water and Environment, Florida International University, Miami, FL, USA.
| | - Galia Varona
- Miami-Dade Division of Environmental Resources Management, FL, USA
| | | | - Diego Lirman
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, FL, USA
| | - Ligia Collado-Vides
- Department of Biological Sciences and Center for Coastal Oceans Research in the Institute for Water and Environment, Florida International University, Miami, FL, USA
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18
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Liu H, Li W, Lv G. How nonrandom habitat loss affects nature reserve planning strategies. Ecol Modell 2019. [DOI: 10.1016/j.ecolmodel.2018.12.014] [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]
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19
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Haoqi L, Guanghui L. RETRACTED: Biomass energy flow between species and species survival in fragmented landscapes. ECOLOGICAL COMPLEXITY 2019. [DOI: 10.1016/j.ecocom.2018.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Boundary constraints on population dynamics in a percolating habitat. ECOLOGICAL COMPLEXITY 2018. [DOI: 10.1016/j.ecocom.2018.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Combined effect of matrix quality and spatial heterogeneity on biodiversity decline. ECOLOGICAL COMPLEXITY 2018. [DOI: 10.1016/j.ecocom.2018.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Shen Y, Xu Z, Nijs I, Liao J. Spatial arrangement of size-different patches determines population dynamics in linear riverine systems. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Ying Z, Ge G, Liu Y. The effects of clonal integration on the responses of plant species to habitat loss and habitat fragmentation. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.06.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Liao J, Bearup D, Blasius B. Food web persistence in fragmented landscapes. Proc Biol Sci 2018; 284:rspb.2017.0350. [PMID: 28724729 DOI: 10.1098/rspb.2017.0350] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/26/2017] [Indexed: 11/12/2022] Open
Abstract
Habitat destruction, characterized by patch loss and fragmentation, is a key driver of biodiversity loss. There has been some progress in the theory of spatial food webs; however, to date, practically nothing is known about how patch configurational fragmentation influences multi-trophic food web dynamics. We develop a spatially extended patch-dynamic model for different food webs by linking patch connectivity with trophic-dependent dispersal (i.e. higher trophic levels displaying longer-range dispersal). Using this model, we find that species display different sensitivities to patch loss and fragmentation, depending on their trophic position and the overall food web structure. Relative to other food webs, omnivory structure significantly increases system robustness to habitat destruction, as feeding on different trophic levels increases the omnivore's persistence. Additionally, in food webs with a dispersal-competition trade-off between species, intermediate levels of habitat destruction can enhance biodiversity by creating refuges for the weaker competitor. This demonstrates that maximizing patch connectivity is not always effective for biodiversity maintenance, as in food webs containing indirect competition, doing so may lead to further species loss.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, People's Republic of China
| | - Daniel Bearup
- Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK.,Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26111 Oldenburg, Germany
| | - Bernd Blasius
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26111 Oldenburg, Germany
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25
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Xu Z, Shen Y, Liao J. Patch dynamics of various plant-animal interactions in fragmented landscapes. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2017.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Liu Y, Ying Z, Wang S, Liao J, Lu H, Ma L, Li Z. Modeling the impact of reproductive mode on masting. Ecol Evol 2017; 7:6284-6291. [PMID: 28861232 PMCID: PMC5574799 DOI: 10.1002/ece3.3214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/25/2017] [Accepted: 06/07/2017] [Indexed: 11/06/2022] Open
Abstract
Masting is defined as the intermittent highly variable production of seed in a plant population. According to reproductive modes, that is, sexual and asexual reproduction, masting species can be separated into three groups, that is, (1) species, for example, bamboo, flower only once before they die; (2) species, for example, Fagus, reproduce sexually; and (3) species, for example, Stipa tenacissima, reproduce both sexually and asexually. Several theories have been proposed to explore the underlying mechanisms of masting. However, to our knowledge, no theory has been found to explain the mechanism of masting species that reproduce both sexually and asexually. Here we refine the Resource Budget Model by considering a trade-off between sexual and asexual reproduction. Besides the depletion efficient (i.e., the ratio of the cost of seed setting and the cost of flowering), other factors, such as the annual remaining resource (i.e., the rest of the resource from the photosynthetic activity after allocating to growth and maintenance), the trade-off between sexual and asexual reproduction, and the reproductive thresholds, also affect masting. Moreover, two potential reproductive strategies are found to explain the mechanisms: (1) When the annual remaining resource is relatively low, plants reproduce asexually and a part of the resource is accumulated as the cost of asexual reproduction is less than the annual remaining resource. Plants flower and set fruits once the accumulated resource exceeds the threshold of sexual reproduction; (2) when the annual remaining resource is relatively high, and the accumulated resource surpasses the threshold of sexual reproduction, masting occurs. Remarkably, under certain depletion efficient, more investigation in sexual reproduction will lead plants to reproduce periodically. Additionally, plants investigate less resource to reproduce periodically when depletion efficient keeps increasing as plants can reproduce efficiently. Overall, our study provides new insights into the interpretation of masting, especially for species that reproduce both sexually and asexually.
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Affiliation(s)
- Yongjie Liu
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,Department of Biology Centre of Excellence Plant and Ecosystem University of Antwerp Wilrijk Belgium
| | - Zhixia Ying
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,College of Life Science Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education Nanchang University Nanchang China
| | - Shichang Wang
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,Key Laboratory of Animal Ecology and Conservation Biology Centre for Computational Biology and Evolution Institute of Zoology Chinese Academy of Sciences Beijing China
| | - Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research Jiangxi Normal University Nanchang China
| | - Hui Lu
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,University of Chinese Academy of Sciences Beijing China
| | - Liang Ma
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,University of Chinese Academy of Sciences Beijing China
| | - Zhenqing Li
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.,University of Chinese Academy of Sciences Beijing China
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27
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Velazquez-Castro J, Eichhorn MP. Relative ranges of mating and dispersal modulate Allee thresholds in sessile species. Ecol Modell 2017. [DOI: 10.1016/j.ecolmodel.2017.05.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Liao J, Ying Z, Woolnough DA, Miller AD, Li Z, Nijs I. Coexistence of species with different dispersal across landscapes: a critical role of spatial correlation in disturbance. Proc Biol Sci 2017; 283:rspb.2016.0537. [PMID: 27147101 DOI: 10.1098/rspb.2016.0537] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 04/11/2016] [Indexed: 11/12/2022] Open
Abstract
Disturbance is key to maintaining species diversity in plant communities. Although the effects of disturbance frequency and extent on species diversity have been studied, we do not yet have a mechanistic understanding of how these aspects of disturbance interact with spatial structure of disturbance to influence species diversity. Here we derive a novel pair approximation model to explore competitive outcomes in a two-species system subject to spatially correlated disturbance. Generally, spatial correlation in disturbance favoured long-range dispersers, while distance-limited dispersers were greatly suppressed. Interestingly, high levels of spatial aggregation of disturbance promoted long-term species coexistence that is not possible in the absence of disturbance, but only when the local disperser was intrinsically competitively superior. However, spatial correlation in disturbance led to different competitive outcomes, depending on the disturbed area. Concerning ecological conservation and management, we theoretically demonstrate that introducing a spatially correlated disturbance to the system or altering an existing disturbance regime can be a useful strategy either to control species invasion or to promote species coexistence. Disturbance pattern analysis may therefore provide new insights into biodiversity conservation.
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Affiliation(s)
- Jinbao Liao
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhixia Ying
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Daelyn A Woolnough
- Biology Department and the Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48858, USA
| | - Adam D Miller
- Smithsonian Conservation Biology Institute, Front Royal, VA, USA
| | - Zhenqing Li
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China
| | - Ivan Nijs
- Research Group Plant and Vegetation Ecology, Department of Biology, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, Wilrijk 2610, Belgium
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29
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Liao J, Bearup D, Blasius B. Diverse responses of species to landscape fragmentation in a simple food chain. J Anim Ecol 2017; 86:1169-1178. [DOI: 10.1111/1365-2656.12702] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 05/15/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research; Jiangxi Normal University; Nanchang China
- School of Geography and Environment; Jiangxi Normal University; Nanchang China
| | - Daniel Bearup
- Animal and Plant Sciences (APS); University of Sheffield; Sheffield UK
- Institute for Chemistry and Biology of the Marine Environment (ICBM); University of Oldenburg; Oldenburg Germany
| | - Bernd Blasius
- Institute for Chemistry and Biology of the Marine Environment (ICBM); University of Oldenburg; Oldenburg Germany
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30
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Liao J, Bearup D, Wang Y, Nijs I, Bonte D, Li Y, Brose U, Wang S, Blasius B. Robustness of metacommunities with omnivory to habitat destruction: disentangling patch fragmentation from patch loss. Ecology 2017; 98:1631-1639. [PMID: 28369715 DOI: 10.1002/ecy.1830] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 03/15/2017] [Indexed: 11/08/2022]
Abstract
Habitat destruction, characterized by patch loss and fragmentation, is a major driving force of species extinction, and understanding its mechanisms has become a central issue in biodiversity conservation. Numerous studies have explored the effect of patch loss on food web dynamics, but ignored the critical role of patch fragmentation. Here we develop an extended patch-dynamic model for a tri-trophic omnivory system with trophic-dependent dispersal in fragmented landscapes. We found that species display different vulnerabilities to both patch loss and fragmentation, depending on their dispersal range and trophic position. The resulting trophic structure varies depending on the degree of habitat loss and fragmentation, due to a tradeoff between bottom-up control on omnivores (dominated by patch loss) and dispersal limitation on intermediate consumers (dominated by patch fragmentation). Overall, we find that omnivory increases system robustness to habitat destruction relative to a simple food chain.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, Nanchang, 330022, China
| | - Daniel Bearup
- Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, United Kingdom.,Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Carl-von-Ossietzky-Strasse 9-11, Oldenburg, D-26111, Germany
| | - Yeqiao Wang
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, Nanchang, 330022, China
| | - Ivan Nijs
- Centre of Excellence Plant and Vegetation Ecology, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, Wilrijk, 2610, Belgium
| | - Dries Bonte
- Department of Biology, Terrestrial Ecology Unit, Ghent University, K. L. Ledeganckstraat 35, Ghent, B-9000, Belgium
| | - Yuanheng Li
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig, 04103, Germany
| | - Ulrich Brose
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig, 04103, Germany.,Institute of Ecology, Friedrich Schiller University Jena, Dornburger Strasse 159, Jena, 07743, Germany
| | - Shaopeng Wang
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig, 04103, Germany
| | - Bernd Blasius
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Carl-von-Ossietzky-Strasse 9-11, Oldenburg, D-26111, Germany
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31
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Hiebeler DE, Audibert A, Strubell E, Michaud IJ. An epidemiological model of internet worms with hierarchical dispersal and spatial clustering of hosts. J Theor Biol 2017; 418:8-15. [DOI: 10.1016/j.jtbi.2017.01.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 12/20/2016] [Accepted: 01/19/2017] [Indexed: 10/20/2022]
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32
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Liao J, Chen J, Ying Z, Hiebeler DE, Nijs I. An extended patch-dynamic framework for food chains in fragmented landscapes. Sci Rep 2016; 6:33100. [PMID: 27608823 PMCID: PMC5016810 DOI: 10.1038/srep33100] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 08/19/2016] [Indexed: 12/03/2022] Open
Abstract
Habitat destruction, a key determinant of species loss, can be characterized by two components, patch loss and patch fragmentation, where the former refers to the reduction in patch availability, and the latter to the division of the remaining patches. Classical metacommunity models have recently explored how food web dynamics respond to patch loss, but the effects of patch fragmentation have largely been overlooked. Here we develop an extended patch-dynamic model that tracks the patch occupancy of the various trophic links subject to colonization-extinction-predation dynamics by incorporating species dispersal with patch connectivity. We found that, in a simple food chain, species at higher trophic level become extinct sooner with increasing patch loss and fragmentation due to the constraint in resource availability, confirming the trophic rank hypothesis. Yet, effects of fragmentation on species occupancy are largely determined by patch loss, with maximal fragmentation effects occurring at intermediate patch loss. Compared to the spatially explicit simulations that we also performed, the current model with pair approximation generates similar community patterns especially in spatially clustered landscapes. Overall, our extended framework can be applied to model more complex food webs in fragmented landscapes, broadening the scope of existing metacommunity theory.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education’s Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, China
| | - Jiehong Chen
- Ministry of Education’s Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, China
| | - Zhixia Ying
- College of Life Science, Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330029, China
| | - David E. Hiebeler
- Department of Mathematics and Statistics, University of Maine, 333 Neville Hall, Orono, ME 04469, USA
| | - Ivan Nijs
- Centre of Excellence Plant and Vegetation Ecology, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, 2610 Wilrijk, Belgium
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33
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Liao J, Ying Z, Hiebeler DE, Wang Y, Takada T, Nijs I. Species extinction thresholds in the face of spatially correlated periodic disturbance. Sci Rep 2015; 5:15455. [PMID: 26482293 PMCID: PMC4612536 DOI: 10.1038/srep15455] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 09/22/2015] [Indexed: 11/09/2022] Open
Abstract
The spatial correlation of disturbance is gaining attention in landscape ecology, but knowledge is still lacking on how species traits determine extinction thresholds under spatially correlated disturbance regimes. Here we develop a pair approximation model to explore species extinction risk in a lattice-structured landscape subject to aggregated periodic disturbance. Increasing disturbance extent and frequency accelerated population extinction irrespective of whether dispersal was local or global. Spatial correlation of disturbance likewise increased species extinction risk, but only for local dispersers. This indicates that models based on randomly simulated disturbances (e.g., mean-field or non-spatial models) may underestimate real extinction rates. Compared to local dispersal, species with global dispersal tolerated more severe disturbance, suggesting that the spatial correlation of disturbance favors long-range dispersal from an evolutionary perspective. Following disturbance, intraspecific competition greatly enhanced the extinction risk of distance-limited dispersers, while it surprisingly did not influence the extinction thresholds of global dispersers, apart from decreasing population density to some degree. As species respond differently to disturbance regimes with different spatiotemporal properties, different regimes may accommodate different species.
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Affiliation(s)
- Jinbao Liao
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, China
| | - Zhixia Ying
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - David E Hiebeler
- Department of Mathematics and Statistics, University of Maine, 333 Neville Hall, Orono, ME 04469, USA
| | - Yeqiao Wang
- Ministry of Education's Key Laboratory of Poyang Lake Wetland and Watershed Research, Jiangxi Normal University, Ziyang Road 99, 330022 Nanchang, China
| | - Takenori Takada
- Laboratory of Mathematical Ecology, Graduate School of Earth Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan
| | - Ivan Nijs
- Research Group Plant and Vegetation Ecology, Department of Biology, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, B-2610 Wilrijk, Belgium
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34
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Ying Z, Liao J, Wang S, Lu H, Liu Y, Ma L, Li Z. Species coexistence in a lattice-structured habitat: Effects of species dispersal and interactions. J Theor Biol 2014; 359:184-91. [DOI: 10.1016/j.jtbi.2014.05.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 05/10/2014] [Accepted: 05/28/2014] [Indexed: 11/24/2022]
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