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Patouillat L, Hambuckers A, Adi Subrata S, Garigliany M, Brotcorne F. Zoonotic pathogens in wild Asian primates: a systematic review highlighting research gaps. Front Vet Sci 2024; 11:1386180. [PMID: 38993279 PMCID: PMC11238137 DOI: 10.3389/fvets.2024.1386180] [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: 02/14/2024] [Accepted: 06/17/2024] [Indexed: 07/13/2024] Open
Abstract
Introduction Ongoing global changes, including natural land conversion for agriculture and urbanization, modify the dynamics of human-primate contacts, resulting in increased zoonotic risks. Although Asia shelters high primate diversity and experiences rapid expansion of human-primate contact zones, there remains little documentation regarding zoonotic surveillance in the primates of this region. Methods Using the PRISMA guidelines, we conducted a systematic review to compile an inventory of zoonotic pathogens detected in wild Asian primates, while highlighting the coverage of primate species, countries, and pathogen groups surveyed, as well as the diagnostic methods used across the studies. Moreover, we compared the species richness of pathogens harbored by primates across diverse types of habitats classified according to their degree of anthropization (i.e., urban vs. rural vs. forest habitats). Results and discussion Searches of Scopus, PubMed, and the Global Mammal Parasite Database yielded 152 articles on 39 primate species. We inventoried 183 pathogens, including 63 helminthic gastrointestinal parasites, two blood-borne parasites, 42 protozoa, 45 viruses, 30 bacteria, and one fungus. Considering each study as a sample, species accumulation curves revealed no significant differences in specific richness between habitat types for any of the pathogen groups analyzed. This is likely due to the insufficient sampling effort (i.e., a limited number of studies), which prevents drawing conclusive findings. This systematic review identified several publication biases, particularly the uneven representation of host species and pathogen groups studied, as well as a lack of use of generic diagnostic methods. Addressing these gaps necessitates a multidisciplinary strategy framed in a One Health approach, which may facilitate a broader inventory of pathogens and ultimately limit the risk of cross-species transmission at the human-primate interface. Strengthening the zoonotic surveillance in primates of this region could be realized notably through the application of more comprehensive diagnostic techniques such as broad-spectrum analyses without a priori selection.
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Affiliation(s)
- Laurie Patouillat
- SPHERES, Primatology and Tropical Ecology Group, Faculty of Sciences, University of Liège, Liège, Belgium
- FARAH, Department of Pathology, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Alain Hambuckers
- SPHERES, Primatology and Tropical Ecology Group, Faculty of Sciences, University of Liège, Liège, Belgium
| | - Sena Adi Subrata
- Faculty of Forestry, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Mutien Garigliany
- FARAH, Department of Pathology, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Fany Brotcorne
- SPHERES, Primatology and Tropical Ecology Group, Faculty of Sciences, University of Liège, Liège, Belgium
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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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Enari H, Enari HS. Bioacoustic monitoring to determine addiction levels of primates to the human sphere: A feasibility study on Japanese macaques. Am J Primatol 2023; 85:e23558. [PMID: 37781937 DOI: 10.1002/ajp.23558] [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: 02/23/2023] [Revised: 09/17/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023]
Abstract
Some nonhuman primate species, whose original habitats have been reclaimed by artificial activities, have acquired boldness toward humans which is evident based on the diminished frequency of escape behaviors. Eventually, such species have become regular users of human settlements, and are referred to as "urban primates." Considering this, we developed a noninvasive technique based on bioacoustics to provide a transparent assessment of troop addiction levels in anthropogenic environments, which are determined by the dependence on agricultural crops and human living sphere for their diets and daily ranging, respectively. We attempted to quantify the addiction levels based on the boldness of troops when raiding settlements, characterized by a "landscape of fear" because of the presence of humans as predators. We hypothesized that the boldness of troops could be measured using two indices: the frequency of raiding events on settlements and the amount of time spent there. For hypothesis testing, we devised an efficient method to measure these two indices using sound cues (i.e., spontaneous calls) for tracing troop movements that are obtainable throughout the day from most primate species (e.g., contact calls). We conducted a feasibility study of this assessment procedure, targeting troops of Japanese macaques (Macaca fuscata). For this study, we collected 346 recording weeks of data using autonomous recorders from 24 troops with different addiction levels during the nonsnowy seasons. The results demonstrated that troops that reached the threshold level, at which radical interventions including mass culling of troop members is officially permitted, could be readily identified based on the following behavioral characteristics: troop members raiding settlements two or three times per week and mean time spent in settlements per raiding event exceeding 0.4 h. Thus, bioacoustic monitoring could become a valid option to ensure the objectivity of policy judgment in urban primate management.
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Affiliation(s)
- Hiroto Enari
- Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
| | - Haruka S Enari
- Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
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4
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Ramsay MS, Sgarlata GM, Barratt CD, Salmona J, Andriatsitohaina B, Kiene F, Manzi S, Ramilison ML, Rakotondravony R, Chikhi L, Lehman SM, Radespiel U. Effects of Forest Fragmentation on Connectivity and Genetic Diversity in an Endemic and an Invasive Rodent in Northwestern Madagascar. Genes (Basel) 2023; 14:1451. [PMID: 37510355 PMCID: PMC10378931 DOI: 10.3390/genes14071451] [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: 06/02/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Habitat loss and fragmentation are of concern to conservation biologists worldwide. However, not all organisms are affected equally by these processes; thus, it is important to study the effects of living in fragmented habitats on species that differ in lifestyle and habitat requirements. In this study, we examined the dispersal and connectivity patterns of rodents, one endemic (Eliurus myoxinus) and one invasive (Rattus rattus), in two landscapes containing forest fragments and adjacent continuous forest patches in northwestern Madagascar. We generated genetic (RADseq) data for 66 E. myoxinus and 81 R. rattus individuals to evaluate differences in genetic diversity as well as inbreeding and connectivity in two landscapes. We found higher levels of inbreeding and lower levels of genetic diversity in E. myoxinus compared with R. rattus. We observed related dyads both within and between habitat patches and positive spatial autocorrelation at lower distance classes for both species, with a stronger pattern of spatial autocorrelation in R. rattus. Across each site, we identified contrasting migration rates for each species, but these did not correspond to habitat-matrix dichotomies. The relatively low genetic diversity in the endemic E. myoxinus suggests ecological constraints that require further investigation.
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Affiliation(s)
- Malcolm S Ramsay
- Department of Anthropology, University of Toronto, Toronto, ON M5S 2S2, Canada
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | | | - Christopher D Barratt
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, 04103 Leipzig, Germany
| | - Jordi Salmona
- CNRS-UPS-IRD, UMR5174, Laboratoire Évolution & Diversité Biologique, Université Paul Sabatier, 31062 Toulouse, France
| | - Bertrand Andriatsitohaina
- Planet Madagascar, Antananarivo 101, Madagascar
- Faculté des Sciences, de Technologies et de l'Environnement, Université de Mahajanga, Mahajanga 401, Madagascar
| | - Frederik Kiene
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Sophie Manzi
- CNRS-UPS-IRD, UMR5174, Laboratoire Évolution & Diversité Biologique, Université Paul Sabatier, 31062 Toulouse, France
| | - Miarisoa L Ramilison
- Faculté des Sciences, de Technologies et de l'Environnement, Université de Mahajanga, Mahajanga 401, Madagascar
- Department of Primate Behavior and Ecology, Central Washington University, Ellensburg, WA 98926, USA
| | - Romule Rakotondravony
- Faculté des Sciences, de Technologies et de l'Environnement, Université de Mahajanga, Mahajanga 401, Madagascar
| | - Lounès Chikhi
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
- CNRS-UPS-IRD, UMR5174, Laboratoire Évolution & Diversité Biologique, Université Paul Sabatier, 31062 Toulouse, France
| | - Shawn M Lehman
- Department of Anthropology, University of Toronto, Toronto, ON M5S 2S2, Canada
| | - Ute Radespiel
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
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Cox DTC, Gardner AS, Gaston KJ. Diel niche variation in mammalian declines in the Anthropocene. Sci Rep 2023; 13:1031. [PMID: 36658287 PMCID: PMC9852540 DOI: 10.1038/s41598-023-28104-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
Biodiversity is being eroded worldwide. Many human pressures are most forcefully exerted or have greatest effect during a particular period of the day. Therefore when species are physically active (their diel niche) may influence their risk of population decline. We grouped 5032 terrestrial extant mammals by their dominant activity pattern (nocturnal, crepuscular, cathemeral and diurnal), and determine variation in population decline across diel niches. We find an increased risk of population decline in diurnal (52.1% of species), compared to nocturnal (40.1% of species), crepuscular (39.1% of species) and cathemeral (43.0% of species) species, associated with the larger proportion of diurnal mammals that are primates. Those species with declining populations whose activity predominantly coincides with that of humans (cathemeral, diurnal) face an increased number of anthropogenic threats than those principally active at night, with diurnal species more likely to be declining from harvesting. Across much of the land surface habitat loss is the predominant driver of population decline, however, harvesting is a greater threat to day-active species in sub-Saharan Africa and mainland tropical Asia, associated with declines in megafauna and arboreal foragers. Deepening understanding of diel variation in anthropogenic pressures and resulting population declines will help target conservation actions.
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Affiliation(s)
- Daniel T C Cox
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR10 9FE, UK.
| | - Alexandra S Gardner
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
| | - Kevin J Gaston
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
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Lins PGADS, Ribeiro-Júnior JW, Peres CA, Penha J. Size and degree of protection of native forest remnants drive the local occupancy of an endangered neotropical primate. Am J Primatol 2022; 84:e23446. [PMID: 36268580 DOI: 10.1002/ajp.23446] [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: 04/16/2022] [Revised: 09/25/2022] [Accepted: 10/04/2022] [Indexed: 11/08/2022]
Abstract
Although the species-area relationship is well known, it may interact with and be augmented or cancelled out by other factors, such as local human disturbance. We used data on site occupancy of the Endangered blonde capuchin monkey (Sapajus flavius) based primarily on a standardized program of local interviews to model the influence of past human disturbance on the occurrence of this species across remaining forest patches of northeastern Brazil within the Atlantic Forest and Caatinga biomes. To do so, we assessed environmental covariates that best represent the history of human impacts. We then used single-species occupancy models to assess site occupancy, while controlling for detection error during sampling. Surprisingly, we obtained a higher occupancy rate in the more arid Caatinga remnants than in the more mesic Atlantic Forest. Habitat patch size, history of site protection, and annual precipitation were the best predictors of local occupancy. Historical human disturbance, including subsistence hunting, has exerted considerable impact on the modern distribution of the blonde capuchin, whose geographic range largely spans a region historically lacking any wildlife protection. Matrix vegetation structure across the Caatinga, which so far has averted large-scale mechanized agriculture, also creates a benign landscape that likely benefits contemporary capuchin occupancy. Local extinctions of this endangered primate will most likely continue unabated unless a ban on hunting in remaining Atlantic Forest and Caatinga fragments can be enforced.
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Affiliation(s)
- Poliana G Alves de Souza Lins
- Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Federal do Mato Grosso, Cuiabá, Brazil
| | | | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK.,Instituto Juruá, Manaus, Brazil
| | - Jerry Penha
- Centro de Biodiversidade, Instituto de Biociências, Universidade Federal do Mato Grosso, Cuiabá, Brazil
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Factors influencing terrestriality in primates of the Americas and Madagascar. Proc Natl Acad Sci U S A 2022; 119:e2121105119. [PMID: 36215474 PMCID: PMC9586308 DOI: 10.1073/pnas.2121105119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Among mammals, the order Primates is exceptional in having a high taxonomic richness in which the taxa are arboreal, semiterrestrial, or terrestrial. Although habitual terrestriality is pervasive among the apes and African and Asian monkeys (catarrhines), it is largely absent among monkeys of the Americas (platyrrhines), as well as galagos, lemurs, and lorises (strepsirrhines), which are mostly arboreal. Numerous ecological drivers and species-specific factors are suggested to set the conditions for an evolutionary shift from arboreality to terrestriality, and current environmental conditions may provide analogous scenarios to those transitional periods. Therefore, we investigated predominantly arboreal, diurnal primate genera from the Americas and Madagascar that lack fully terrestrial taxa, to determine whether ecological drivers (habitat canopy cover, predation risk, maximum temperature, precipitation, primate species richness, human population density, and distance to roads) or species-specific traits (body mass, group size, and degree of frugivory) associate with increased terrestriality. We collated 150,961 observation hours across 2,227 months from 47 species at 20 sites in Madagascar and 48 sites in the Americas. Multiple factors were associated with ground use in these otherwise arboreal species, including increased temperature, a decrease in canopy cover, a dietary shift away from frugivory, and larger group size. These factors mostly explain intraspecific differences in terrestriality. As humanity modifies habitats and causes climate change, our results suggest that species already inhabiting hot, sparsely canopied sites, and exhibiting more generalized diets, are more likely to shift toward greater ground use.
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Kifle Z, Beehner JC. Distribution and diversity of primates and threats to their survival in the Awi Zone, northwestern Ethiopia. Primates 2022; 63:637-645. [PMID: 36018444 DOI: 10.1007/s10329-022-01010-3] [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: 04/08/2022] [Accepted: 08/03/2022] [Indexed: 10/15/2022]
Abstract
Habitat loss and fragmentation affect the diversity and distribution of primates in a human-modified landscape. Ethiopia has a high diversity of primates, but increasing human pressure has negatively impacted their distribution and abundance across the country, primarily due to deforestation. To date, the diversity and distribution of primate species are poorly known in northwestern Ethiopia. From October 2020 until September 2021, we assessed the diversity and distribution of primate species in 26 forest patches in the Awi Zone, Northwestern Ethiopia using line transect surveys, and we examined the potential conservation threats to the survival of these taxa. Across transects, we encountered 459 groups of four primate taxa: olive baboons (Papio anubis), grivet monkeys (Chlorocebus aethiops), Boutourlini's blue monkeys (Cercopithecus mitis boutourlinii), and black-and-white colobus monkeys (Colobus guereza spp. guereza). The latter two are endemic to Ethiopia. We observed black-and-white colobus monkeys in all surveyed forest patches, while we observed Boutourlini's blue monkeys in 18 patches. Black-and-white colobus monkeys were the most frequently observed (n = 325 sighting; relative encounter frequency = 70.8%), while grivet monkeys (Chlorocebus aethiops) were the least (n = 34 sighting; relative encounter frequency = 7.4%) in the region. Similarly, the relative encounter frequency of olive baboons was 9.2% (n = 42 sighting). The overall mean group size for each species was: Boutourlini's blue monkeys (26.1 individuals), black-and-white colobus monkeys (8.8 individuals), grivet monkeys (34.1 individuals), and olive baboons (41.4 individuals). We identified agricultural expansions, exotic tree plantations, deforestations, firewood collections, livestock grazing, and killings over their crop-feeding behaviors as the main threats to primates and their habitats in the region. This study provides crucial information on an area likely to support primate species that we know very little about. Assigning protected connecting forest patches should be an urgent priority for the conservation of the primates in this region.
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Affiliation(s)
- Zewdu Kifle
- Department of Biology, Bahir Dar University, Bahir Dar, Ethiopia.
| | - Jacinta C Beehner
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA.,Department of Anthropology, University of Michigan, Ann Arbor, MI, USA
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Spider Monkeys (Ateles geoffroyi) Habituate to Anthropogenic Pressure in a Low-Impact Tourism Area: Insights from a Multi-Method Approach. INT J PRIMATOL 2022. [DOI: 10.1007/s10764-022-00310-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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García MG, de Guinea M, Bshary R, van de Waal E. Drivers and outcomes of between-group conflict in vervet monkeys. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210145. [PMID: 35369750 PMCID: PMC8977665 DOI: 10.1098/rstb.2021.0145] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/22/2022] [Indexed: 12/17/2022] Open
Abstract
Neighbouring groups compete over access to resources and territories in between-group encounters, which can escalate into between-group conflicts (BGCs). Both the ecological characteristics of a territory and the rival's fighting ability shape the occurrence and outcome of such contests. What remains poorly understood, however, is how seasonal variability in the ecological value of a territory together with fighting ability related to the likelihood of between-group encounters and the extent to which these escalate into conflicts. To test this, we observed and followed four vervet monkey groups in the wild, and recorded the group structure (i.e. size, composition), the locations and the outcomes of 515 BGCs. We then assessed key ecological measures at these locations, such as vegetation availability (estimated from Copernicus Sentinel 2 satellite images) and the intensity of usage of these locations. We tested to what extent these factors together influenced the occurrence and outcomes of BGCs. We found that the occurrence of BGCs increased at locations with higher vegetation availability relative to the annual vegetation availability within the group's home territory. Also, groups engaging in a BGC at locations far away from their home territory were less likely to win a BGC. Regarding group structure, we found that smaller groups systematically won BGCs against larger groups, which can be explained by potentially higher rates of individual free-riding occurring in larger groups. This study sheds light on how the ecology of encounter locations in combination with a group's social characteristics can critically impact the dynamics of BGCs in a non-human primate species. This article is part of the theme issue 'Intergroup conflict across taxa'.
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Affiliation(s)
- Miguel Gareta García
- Inkawu Vervet Project, Mawana Game Reserve, KwaZulu Natal 3115, South Africa
- Department of Eco-Ethology, Faculty of Biology, University of Neuchâtel, Rue Emile Argand 11, Neuchâtel 2000, Switzerland
| | - Miguel de Guinea
- Movement Ecology Laboratory, Alexander Silverman Institute of Life Sciences, Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Redouan Bshary
- Inkawu Vervet Project, Mawana Game Reserve, KwaZulu Natal 3115, South Africa
- Department of Eco-Ethology, Faculty of Biology, University of Neuchâtel, Rue Emile Argand 11, Neuchâtel 2000, Switzerland
| | - Erica van de Waal
- Inkawu Vervet Project, Mawana Game Reserve, KwaZulu Natal 3115, South Africa
- Department of Ecology and Evolution, Faculty of Biology and Medicine, University of Lausanne, Lausanne 1015, Switzerland
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Panda D, Mohanty S, Suryan T, Pandey P, Lee H, Singh R. High striped hyena density suggests coexistence with humans in an agricultural landscape, Rajasthan. PLoS One 2022; 17:e0266832. [PMID: 35507591 PMCID: PMC9067646 DOI: 10.1371/journal.pone.0266832] [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: 12/14/2021] [Accepted: 03/29/2022] [Indexed: 11/18/2022] Open
Abstract
Understanding the mechanism of coexistence, where carnivores adapt to humans and vice versa in the shared landscape, is a key determinant of long-term carnivore conservation but is yet to be comprehensively examined. We explored the coexistence mechanism of striped hyena (Hyaena hyaena) and humans in the shared landscape of Sawai Mansingh Wildlife Sanctuary (SMS WLS), Rajasthan, from November 2019 to March 2021. We used data derived from motion sensors-based surveys, satellite remote sensing images, and household questionnaires to understand socio-ecological, environmental and anthropogenic factors facilitating hyena persistence in the shared landscape. The high density (12 individuals/100 km2) striped hyena in the landscape revealed the coexistence with humans. Being scavengers, they get subsidised food sources and are perceived as low-risk species by humans. Striped hyena minimised temporal activity during the daytime when human activity peaked. However, the highest activity overlap was observed in the agricultural area (Δ1 = 0.39), and likely depicts the high activity due to agricultural practices. While the human settlement was positively associated with the detection of hyenas, the probability of striped hyena captures increased with decreasing distance from human settlement, possibly influenced by high carcass availability, providing the easiest food resources to striped hyena, and allowing them to coexist with humans. This study demonstrates the coexistence of hyenas and humans in the shared landscape supported by mutual benefits, where hyenas benefit from anthropogenic food from scavenging, while humans benefit from waste removal and the non-lethal nature hyenas.
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Affiliation(s)
- Debashish Panda
- Amity Institute of Forestry and Wildlife, Amity University Uttar Pradesh, Gautam Buddha Nagar, Uttar Pradesh, India
| | - Subham Mohanty
- Department of Zoology, North Campus, Delhi University, New Delhi, India
| | - Tanuj Suryan
- Amity Institute of Forestry and Wildlife, Amity University Uttar Pradesh, Gautam Buddha Nagar, Uttar Pradesh, India
| | - Puneet Pandey
- Amity Institute of Forestry and Wildlife, Amity University Uttar Pradesh, Gautam Buddha Nagar, Uttar Pradesh, India
- Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- * E-mail: (PP); (HL); , (RS)
| | - Hang Lee
- Conservation Genome Resource Bank for Korean Wildlife (CGRB), Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- * E-mail: (PP); (HL); , (RS)
| | - Randeep Singh
- Amity Institute of Forestry and Wildlife, Amity University Uttar Pradesh, Gautam Buddha Nagar, Uttar Pradesh, India
- * E-mail: (PP); (HL); , (RS)
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Pereira LA, Campos VEW, Gestich CC, Ribeiro MC, Culot L. Erosion of primate functional diversity in small and isolated forest patches within movement‐resistant landscapes. Anim Conserv 2022. [DOI: 10.1111/acv.12784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. A. Pereira
- Programa de Pós‐Graduação em Ecologia, Evolução e Biodiversidade São Paulo State University (UNESP) Rio Claro Brazil
- Laboratory of Primatology (LaP), Department of Biodiversity, Institute of Biosciences São Paulo State University (UNESP) Rio Claro Brazil
| | - V. E. W. Campos
- Laboratory of Primatology (LaP), Department of Biodiversity, Institute of Biosciences São Paulo State University (UNESP) Rio Claro Brazil
- Programa de Pós‐Graduação em Ciências Biológicas (Zoologia) São Paulo State University (UNESP) Rio Claro Brazil
| | - C. C. Gestich
- Department of Genetics and Evolution, Biological and Health Sciences Center Federal University of São Carlos (UFSCar) São Carlos Brazil
| | - M. C. Ribeiro
- Spatial Ecology and Conservation Lab (LEEC), Institute of Biosciences, Department of Biodiversity São Paulo State University (UNESP) Rio Claro Brazil
| | - L. Culot
- Laboratory of Primatology (LaP), Department of Biodiversity, Institute of Biosciences São Paulo State University (UNESP) Rio Claro Brazil
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Shedden A, Dunn JC, Martínez-Mota R, Cristóbal-Azkárate J, Gillingham PK, MacSwiney-González C, Newton AC, Rodríguez-Luna E, Korstjens AH. Forest maturity has a stronger influence on the prevalence of spider monkeys than howler monkeys in an anthropogenically impacted rainforest landscape. Primates 2022; 63:283-291. [PMID: 35218456 PMCID: PMC9061665 DOI: 10.1007/s10329-022-00980-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 02/04/2022] [Indexed: 11/29/2022]
Abstract
The transformation and depletion of primary forest over the past few decades have placed almost half of the world’s primate species under the threat of extinction. Developing any successful conservation program for primates requires distribution and demography data, as well as an understanding of the relationships between these factors and their habitat. Between March and June 2010 and 2011 we collected data on the presence and demographic parameters of howler and spider monkeys by carrying out surveys, and validated our findings using local knowledge. We then examined the relationship between forest type and the presence of these primates at 54 sites in the northern area of the Selva Zoque Corridor, Mexico. We detected 86 spider monkey groups across 31 plots and censused 391 individuals (mean ± SD = 5.9 ± 3.0 individuals per sub-group, n = 67 sub-groups). We also detected 69 howler monkey groups across 30 plots and censused 117 individuals (mean ± SD = 5.3 ± 2.4 individuals per group, n = 22 groups). Howler monkey presence was not related to any specific vegetation type, while spider monkeys were present in areas with a higher percentage of tall forest (trees > 25 m high). Overall, spider monkeys were more prevalent than howler monkeys in our sampling sites and showed demographic characteristics similar to those in better protected areas, suggesting that the landscape features in the Uxpanapa Valley are suitable for their needs. Conversely, howler monkey presence was found to be more limited than in other regions, possibly due to the extended presence of spider monkeys.
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Affiliation(s)
- A Shedden
- Faculty of Science and Technology, Bournemouth University, Talbot Campus, Fern Barrow, Poole, BH12 5BB, Dorset, UK.
| | - J C Dunn
- Behavioural Ecology Group, Anglia Ruskin University, Cambridge Campus, East Road, Cambridge, CB1 1PT, UK
- Biological Anthropology, University of Cambridge, Cambridge, CB2 3QG, UK
- Department of Cognitive Biology, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - R Martínez-Mota
- Centro de Investigaciones Tropicales, José María Morelos #44, Zona Centro, C.P. 91000, Xalapa, Veracruz, México
| | - J Cristóbal-Azkárate
- Department of Basic Psychological Processes and Their Development, University of the Basque Country, 20018, Donostia-San Sebastián, Spain
| | - P K Gillingham
- Faculty of Science and Technology, Bournemouth University, Talbot Campus, Fern Barrow, Poole, BH12 5BB, Dorset, UK
| | - C MacSwiney-González
- Centro de Investigaciones Tropicales, José María Morelos #44, Zona Centro, C.P. 91000, Xalapa, Veracruz, México
| | - A C Newton
- Faculty of Science and Technology, Bournemouth University, Talbot Campus, Fern Barrow, Poole, BH12 5BB, Dorset, UK
| | - E Rodríguez-Luna
- Centro de Investigaciones Tropicales, José María Morelos #44, Zona Centro, C.P. 91000, Xalapa, Veracruz, México
| | - A H Korstjens
- Faculty of Science and Technology, Bournemouth University, Talbot Campus, Fern Barrow, Poole, BH12 5BB, Dorset, UK
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14
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Ramírez-Delgado JP, Di Marco M, Watson JEM, Johnson CJ, Rondinini C, Corredor Llano X, Arias M, Venter O. Matrix condition mediates the effects of habitat fragmentation on species extinction risk. Nat Commun 2022; 13:595. [PMID: 35105881 PMCID: PMC8807630 DOI: 10.1038/s41467-022-28270-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 01/18/2022] [Indexed: 11/10/2022] Open
Abstract
Habitat loss is the leading cause of the global decline in biodiversity, but the influence of human pressure within the matrix surrounding habitat fragments remains poorly understood. Here, we measure the relationship between fragmentation (the degree of fragmentation and the degree of patch isolation), matrix condition (measured as the extent of high human footprint levels), and the change in extinction risk of 4,426 terrestrial mammals. We find that the degree of fragmentation is strongly associated with changes in extinction risk, with higher predictive importance than life-history traits and human pressure variables. Importantly, we discover that fragmentation and the matrix condition are stronger predictors of risk than habitat loss and habitat amount. Moreover, the importance of fragmentation increases with an increasing deterioration of the matrix condition. These findings suggest that restoration of the habitat matrix may be an important conservation action for mitigating the negative effects of fragmentation on biodiversity. The influence of human pressure within the matrix surrounding habitat fragments remains poorly understood. This study measures the relationship between habitat fragmentation, matrix condition and the change in extinction risk of 4,426 terrestrial mammals, finding that fragmentation and matrix condition are stronger predictors of risk than habitat loss and habitat amount.
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Affiliation(s)
- Juan Pablo Ramírez-Delgado
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, V2N 4Z9, Canada.
| | - Moreno Di Marco
- Department of Biology and Biotechnologies, Sapienza University of Rome, 00185, Rome, Italy
| | - James E M Watson
- School of Earth and Environmental Sciences, University of Queensland, St Lucia, 4072, Australia.,Centre for Biodiversity and Conservation Science, School of Biological Sciences, The University of Queensland, Brisbane, 4072, QLD, Australia
| | - Chris J Johnson
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, V2N 4Z9, Canada
| | - Carlo Rondinini
- Global Mammal Assessment Program, Department of Biology and Biotechnologies, Sapienza University of Rome, Rome, 00185, Italy
| | - Xavier Corredor Llano
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, V2N 4Z9, Canada
| | - Miguel Arias
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, V2N 4Z9, Canada
| | - Oscar Venter
- Natural Resources and Environmental Studies Institute, University of Northern British Columbia, Prince George, V2N 4Z9, Canada
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15
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Population size and habitat preference of the Omo River guereza (Colobus guereza guereza) in a multi-habitat matrix in the central highlands of Ethiopia. Primates 2022; 63:151-160. [PMID: 35038067 DOI: 10.1007/s10329-022-00972-8] [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: 06/23/2021] [Accepted: 01/03/2022] [Indexed: 02/06/2023]
Abstract
Given the current rate of habitat degradation and loss in the tropics, data on primate population densities and habitat use are indispensable for assessing conservation status and designing feasible management plans for primates. The Omo River guereza (Colobus guereza guereza) is a subspecies of the eastern black-and-white colobus monkey endemic to the western Rift Valley forests of Ethiopia. Their restricted distribution along with habitat loss and hunting within their range render them vulnerable to local extirpation and extinction. Furthermore, there are no published data available on the population status and habitat use patterns of the Omo River guereza. We therefore aimed to assess the population size of Omo River guerezas in different habitats (Erica-Juniperus mixed forest, mixed plantation forest, undisturbed natural forest, disturbed natural forest) using transect surveys at Wof-Washa Natural State Forest (WWNSF) in central Ethiopia. Our surveys covered a cumulative distance of 88.5 km in four different habitats, during which we recorded a total of 140 Omo River guereza groups. The average group density was 14.3 groups/km2, average individual density was 94.4 individuals/km2, and we estimated the total population size within WWNSF to be 2549 individuals. The sex ratio of the population was split evenly between males and females, though the age classes skewed strongly towards adults. Of the habitats surveyed, the highest group encounter rate (1.83 groups/km) occurred in the disturbed natural forest. However, the highest individual density (110.1 individuals/km2) was recorded in undisturbed natural forest. Still, sizable densities (group and individual) were recorded in three of the disturbed habitats (disturbed natural forest, mixed plantation forest, and to a lesser extent Erica-Juniperus mixed forest). Our study offers the first baseline information with which to compare future population density estimates and habitat use in the range of Omo River guerezas.
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16
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Cazetta E, Fahrig L. The effects of human‐altered habitat spatial pattern on frugivory and seed dispersal: a global meta‐analysis. OIKOS 2021. [DOI: 10.1111/oik.08288] [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)
- Eliana Cazetta
- Applied Ecology and Conservation Lab, Univ. Estadual de Santa Cruz Ilhéus Bahia Brazil
| | - Lenore Fahrig
- Geomatics and Landscape Ecology Research Laboratory, Dept of Biology, Carleton Univ. Ottawa ON Canada
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17
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Importance of natural land cover for plant species' conservation: A nationwide study in The Netherlands. PLoS One 2021; 16:e0259255. [PMID: 34784365 PMCID: PMC8594855 DOI: 10.1371/journal.pone.0259255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 10/17/2021] [Indexed: 11/21/2022] Open
Abstract
While shifts to high-intensity land cover have caused overwhelming biodiversity loss, it remains unclear how important natural land cover is to the occurrence, and thus the conservation, of different species groups. We used over 4 million plant species’ observations to evaluate the conservation importance of natural land cover by its association with the occurrence probability of 1 122 native and 403 exotic plant species at 1 km resolution by species distribution models. We found that 74.9% of native species, 83.9% of the threatened species and 77.1% rare species preferred landscapes with over 50% natural land cover, while these landscapes only accounted for 15.6% of all grids. Most species preferred natural areas with a mixture of forest and open areas rather than areas with completely open or forested nature. Compared to native species, exotic species preferred areas with lower natural land cover and the cover of natural open area, but they both preferred extremely high and low cover of natural forest area. Threatened and rare species preferred higher natural land cover, either cover of natural forest area or cover of natural open area than not threatened and common species, but rare species were also more likely to occur in landscapes with 0–25% cover of natural open area. Although more natural land cover in a landscape will not automatically result in more native species, because there is often a non-linear increase in species occurrence probability when going from 0% to 100% natural land cover, for conserving purposes, over 80% natural land cover should be kept in landscapes for conserving threatened and very rare species, and 60% natural land cover is the best for conserving common native species. Our results stress the importance of natural areas for plant species’ conservation. It also informs improvements to species conservation by increasing habitat diversity.
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Koirala S, Garber PA, Somasundaram D, Katuwal HB, Ren B, Huang C, Li M. Factors affecting the crop raiding behavior of wild rhesus macaques in Nepal: Implications for wildlife management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 297:113331. [PMID: 34298347 DOI: 10.1016/j.jenvman.2021.113331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 07/17/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
In many areas of South Asia and Southeast Asia, macaques inhabiting agricultural landscapes are considered serious crop pests by local farmers. In Nepal, for example, the expansion of monocultures, increased forest fragmentation, the degradation of natural habitats, and changing agricultural practices have led to a significant increase in the frequency of human-macaque conflict. In order to more fully understand the set of factors that contribute to macaque crop raiding, and the set of preventive measures that can be put in place to avoid human-macaque conflict, we examined patterns of crop raiding by a group of 52 rhesus macaques (Macaca mulatta) in the Kavrepalanchok district, Nepal. We present data on macaque inflicted crop damage in 172 agricultural plots (each plot measuring 380 m2) from August to October 2019. Our results indicate that farmland invasions by macaques were principally affected by crop type (maize was preferred over rice), nearness of farmland to both the forest edge and the major travel route used by the macaques, and the mitigation efforts applied by farmers to discourage crop raiding. We found that as the proportion of maize farmland in the most direct path from the macaque's main travel route to nearby crop raiding sites increased, the amount of maize damage decreased. This is likely explained by the fact that macaques traveling across several adjacent maize fields encounter multiple farmers protecting their crops. We estimated that the financial cost to individual farmer households of macaque maize and rice raiding was on average US$ 14.9 or 4.2% of their annual income from cultivating those two crops. As human-macaque conflict is one of the most critical challenges faced by wildlife managers in South Asia and Southeast Asia, studies of macaque crop raiding behavior provide an important starting point for developing effective strategies to manage human-macaque conflict while promoting both primate conservation and the economic well-being of the local community.
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Affiliation(s)
- Sabina Koirala
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Paul A Garber
- Department of Anthropology, Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Urbana, USA
| | - Deepakrishna Somasundaram
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Haidian District, Beijing, 100094, China
| | - Hem Bahadur Katuwal
- University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China
| | - Baoping Ren
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China
| | - Chengming Huang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China
| | - Ming Li
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, 650223, China.
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19
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20
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Deleuze S, Brotcorne F, Polet R, Soma G, Rigaux G, Giraud G, Cloutier F, Poncin P, Wandia N, Huynen MC. Tubectomy of Pregnant and Non-pregnant Female Balinese Macaques ( Macaca Fascicularis) With Post-operative Monitoring. Front Vet Sci 2021; 8:688656. [PMID: 34568470 PMCID: PMC8458650 DOI: 10.3389/fvets.2021.688656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/09/2021] [Indexed: 11/24/2022] Open
Abstract
Worldwide, primates, and humans increasingly share habitats and often enter in conflict when primates thrive in human-dominated environments, calling for special management measures. Reproductive control is increasingly used to manage population growth but very few monitoring data are available. Therefore, the efficiency and implications of such programs require a careful examination. In the context of a contraception program in wild female long-tailed macaques in Ubud, Bali, conducted over four successive campaigns between 2017 and 2019, including 140 females (i.e., 41.9% of the reproductive females of the population in 2019), modifications of an endoscopic tubectomy procedure, a permanent sterilization method, clinical evaluation of this method, and the post-operative monitoring results of the neutered females after release are described. This surgical approach was applicable for pregnant females: 28.6% of the treated females were pregnant at the time of the surgery. The procedure used a single lateral port to reach and cauterize both oviducts in non-pregnant as well as in early to mid-term pregnant females. Pregnant females nearer to term required a second lateral port to access both oviducts masked by the size of the gravid uterus. Moreover, bipolar thermocauterization was utilized successfully without resection to realize the tubectomy. The average duration of the laparoscopic surgery was 14 min for non-pregnant females and 22 min for pregnant females. Animals were released 3 h 22 min in average following their capture. This short holding time, recommended for free-ranging primates, was made possible by the minimal invasiveness of the sterilization approach. A laparoscopic post-operative evaluation conducted on two patients during the following campaign confirmed that the oviducts were definitely disrupted and no longer patent. Moreover, no new pregnancies in sterilized females were recorded during the 3-year observation period. The survival rate of the treated females 6 months after sterilization was high (96.3%) with no major post-operative complications clinically recorded. Among females that were pregnant during surgery, 81.1% were confirmed to experience term delivery. This study demonstrates the safety and efficiency of endoscopic tubectomy, even for pregnant females, as a mean of wild macaques' population control.
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Affiliation(s)
- Stefan Deleuze
- Research Unit FARAH, Equine and Companion Animal Reproduction Pathologies Clinic, Veterinary Medicine Faculty, University of Liège, Liège, Belgium
| | - Fany Brotcorne
- Research Unit SPHERES, Department of Biology, Ecology and Evolution, Sciences Faculty, University of Liège, Liège, Belgium
| | - Roland Polet
- Research Unit SPHERES, Department of Biology, Ecology and Evolution, Sciences Faculty, University of Liège, Liège, Belgium
| | - Gede Soma
- Primate Research Center, Veterinary Medicine Faculty, Udayana University, Denpasar, Indonesia
| | | | - Gwennan Giraud
- Research Unit SPHERES, Department of Biology, Ecology and Evolution, Sciences Faculty, University of Liège, Liège, Belgium
| | - Fanny Cloutier
- Research Unit SPHERES, Department of Biology, Ecology and Evolution, Sciences Faculty, University of Liège, Liège, Belgium
| | - Pascal Poncin
- Research Unit FOCUS, Department of Biology, Ecology and Evolution, University of Liège, Liège, Belgium
| | - Nengah Wandia
- Primate Research Center, Veterinary Medicine Faculty, Udayana University, Denpasar, Indonesia
| | - Marie-Claude Huynen
- Research Unit SPHERES, Department of Biology, Ecology and Evolution, Sciences Faculty, University of Liège, Liège, Belgium
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21
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van Dijk K, Cibot M, McLennan MR. Chimpanzees (Pan troglodytes) adapt their nesting behavior after large-scale forest clearance and community decline. Am J Primatol 2021; 83:e23323. [PMID: 34455609 DOI: 10.1002/ajp.23323] [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: 04/03/2021] [Revised: 07/20/2021] [Accepted: 08/12/2021] [Indexed: 11/12/2022]
Abstract
Chimpanzees (Pan troglodytes) build nests at night for sleeping and occasionally during daytime for resting. Over the course of seven years, forest fragments in Bulindi, Uganda, were reduced in size by about 80% when landowners converted forest to agricultural land. However, unlike other studies on nesting behavior in response to habitat disturbance, chimpanzees at Bulindi had no opportunity to retreat into nearby undisturbed forest. To understand behavioral adaptations to forest clearance, we compared Bulindi chimpanzees' nesting characteristics before and after this period of major deforestation. After deforestation, chimpanzees built nests at lower heights in shorter trees, and reused a larger proportion of their nests. Additionally, average nest group size increased after deforestation, even though community size declined by approximately 20% over the same period. The substantial decrease in available forest habitat may have caused the chimpanzees to aggregate for nesting. However, more cohesive nesting may also have been influenced by dietary shifts (increased reliance on agricultural crops) and a need for enhanced safety with increased human encroachment. Conversely, the chimpanzees selected similar tree species for nesting after deforestation, apparently reflecting a strong preference for particular species, nested less often in exotic species, and built integrated nests (constructed using multiple trees) at a similar frequency as before fragment clearance. Chimpanzees living in unprotected habitat in Uganda, as at Bulindi, face mounting anthropogenic pressures that threaten their survival. Nevertheless, our study shows that chimpanzees can adjust their nesting behavior flexibly in response to rapid, extensive habitat change. While behavioral flexibility may enable them to cope with deforestation, at least to a certain point, the long-term survival of chimpanzees in fast-changing human-modified landscapes requires intensive conservation efforts.
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Affiliation(s)
- Kim van Dijk
- Bulindi Chimpanzee and Community Project, Hoima, Uganda.,Animal Behaviour and Cognition, Utrecht University, Utrecht, The Netherlands
| | - Marie Cibot
- Bulindi Chimpanzee and Community Project, Hoima, Uganda.,Anicoon Vétérinaires, Ploemeur, Larmor-Plage, France
| | - Matthew R McLennan
- Bulindi Chimpanzee and Community Project, Hoima, Uganda.,Department of Social Sciences, Faculty of Humanities and Social Sciences, Oxford Brookes University, Oxford, UK.,Centre for Ecology and Conservation, University of Exeter, Cornwall, UK
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Maurer G, Gimenez O, Mulot B, Lescureux N. Under pressure: How human‐wild‐captive elephant social‐ecological system in Laos is teetering due to global forces and sociocultural changes. PEOPLE AND NATURE 2021. [DOI: 10.1002/pan3.10247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Gilles Maurer
- Zooparc de Beauval & Beauval Nature Saint‐Aignan France
- CEFEUniversity of MontpellierCNRSEPHEIRDUniversity of Paul Valéry Montpellier 3 Montpellier France
| | - Olivier Gimenez
- CEFEUniversity of MontpellierCNRSEPHEIRDUniversity of Paul Valéry Montpellier 3 Montpellier France
| | | | - Nicolas Lescureux
- CEFEUniversity of MontpellierCNRSEPHEIRDUniversity of Paul Valéry Montpellier 3 Montpellier France
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23
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Chapman CA, Peres CA. Primate conservation: Lessons learned in the last 20 years can guide future efforts. Evol Anthropol 2021; 30:345-361. [PMID: 34370373 DOI: 10.1002/evan.21920] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/26/2021] [Accepted: 07/05/2021] [Indexed: 12/27/2022]
Abstract
Twenty years ago, we published an assessment of the threats facing primates and with the passing of two decades, we re-evaluate identified threats, consider emerging pressures, identify exciting new avenues of research, and tackle how to change the system to rapidly advance primate and primate habitat conservation. Habitat destruction and hunting have increased, the danger of looming climate change is clearer, and there are emerging threats such as the sublethal effects of microplastics and pesticides. Despite these negative developments, protected areas are increasing, exciting new tools are now available, and the number of studies has grown exponentially. Many of the changes that need to occur to make rapid progress in primate conservation are in our purview to modify. We identify several dimensions indicating the time is right to make large advances; however, the question that remains is do we have the will to prevent widespread primate annihilation and extinction?
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Affiliation(s)
- Colin A Chapman
- Wilson Center, Washington, District of Columbia, USA.,Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, District of Columbia, USA.,School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa.,Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China
| | - Carlos A Peres
- Centre for Ecology, Evolution and Conservation, School of Environmental Sciences, University of East Anglia, Norwich, Norfolk, UK.,Instituto Juruá, Manaus, Brazil
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24
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Caselli M, Zanoli A, Dagradi C, Gallo A, Yazezew D, Tadesse A, Capasso M, Ianniello D, Rinaldi L, Palagi E, Norscia I. Wild geladas (Theropithecus gelada) in crops-more than in pasture areas-reduce aggression and affiliation. Primates 2021; 62:571-584. [PMID: 34061281 PMCID: PMC8225520 DOI: 10.1007/s10329-021-00916-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 05/05/2021] [Indexed: 10/26/2022]
Abstract
Human-primate interfaces are expanding and, despite recent studies on primates from peri-urban environments, little research exists on the impact of agriculture and/or pasture areas on primate social behavior and health. We assessed how crop/pasture areas potentially alter social behavior and health of wild geladas (Theropithecus gelada) frequenting the unprotected area of Kundi (Ethiopia). We predicted that compared to pasture areas, crop areas (i) would be more challenging for geladas (prediction 1) and (ii) would have a greater impact on both aggressive and affiliative behavior, by reducing grooming time and enhancing competition (prediction 2). During January-May 2019 and December 2019-February 2020, we collected data (via scan, focal animal sampling, and video analyses) on direct human disturbance, external signs of pathologies and social behavior of 140 individuals from 14 one-male units and two all-male units. Animals experienced the highest level of human disturbance in crop areas (in line with prediction 1). Individuals from the groups preferentially frequenting crop areas showed the highest prevalence of external signs of pathologies consistent with chemical and biological contamination (alopecia/abnormally swollen parts). We collected 48 fecal samples. Samples from frequent crop users contained the highest rates of parasitic elements/gram (egg/larva/oocyst/cyst) from Entamoeba histolytica/dispar, a parasite common in human settlements of the Amhara region. In crop areas, subjects spent less time grooming but engaged in lower rates of intense aggression (in partial agreement with prediction 2). We speculate that the reduction in social behavior may be a tactic adopted by geladas to minimize the likelihood of detection and maximize food intake while foraging in crops.
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Affiliation(s)
- Marta Caselli
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123, Torino, Italy
| | - Anna Zanoli
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123, Torino, Italy
| | - Carlo Dagradi
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123, Torino, Italy
| | - Alessandro Gallo
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123, Torino, Italy
| | - Dereje Yazezew
- Department of Biology, Debre Behran University, Debre Berhan, Ethiopia
| | - Abebe Tadesse
- Department of Biology, Debre Behran University, Debre Berhan, Ethiopia
| | - Michele Capasso
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, Naples, Italy
| | - Davide Ianniello
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, Naples, Italy
| | - Laura Rinaldi
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, Naples, Italy
| | - Elisabetta Palagi
- Unit of Ethology, Department of Biology, University of Pisa, via Volta 6, 56126, Pisa, Italy.
- University of Pisa, Natural History Museum, Pisa, Italy.
| | - Ivan Norscia
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123, Torino, Italy.
- University of Pisa, Natural History Museum, Pisa, Italy.
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25
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Costa HCM, Benchimol M, Peres CA. Wild ungulate responses to anthropogenic land use: a comparative Pantropical analysis. Mamm Rev 2021. [DOI: 10.1111/mam.12252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hugo C. M. Costa
- Programa de Pós‐graduação em Ecologia e Conservação da Biodiversidade Universidade Estadual de Santa Cruz Rodovia Jorge Amado km 16 Ilhéus BA45662‐900Brazil
| | - Maíra Benchimol
- Laboratório de Ecologia Aplicada à Conservação ‐ LEAC Universidade Estadual de Santa Cruz Rodovia Jorge Amado km 16, Base Ambiental Ilhéus BA45662‐900Brazil
| | - Carlos A. Peres
- School of Environmental Sciences University of East Anglia NorwichNR47TJUK
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba Cidade Universitária João Pessoa Paraíba58051‐900Brazil
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Solórzano‐García B, Zubillaga D, Piñero D, Vázquez‐Domínguez E. Conservation implications of living in forest remnants: Inbreeding and genetic structure of the northernmost mantled howler monkeys. Biotropica 2021. [DOI: 10.1111/btp.12958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | - Diego Zubillaga
- Departamento de Ecología de la Biodiversidad. Instituto de Ecología UNAM, Ciudad Universitaria CDMX Mexico City Mexico
| | - Daniel Piñero
- Departamento de Ecología Evolutiva Instituto de Ecología UNAM CDMX Mexico City Mexico
| | - Ella Vázquez‐Domínguez
- Departamento de Ecología de la Biodiversidad. Instituto de Ecología UNAM, Ciudad Universitaria CDMX Mexico City Mexico
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Chimpanzees balance resources and risk in an anthropogenic landscape of fear. Sci Rep 2021; 11:4569. [PMID: 33633129 PMCID: PMC7907193 DOI: 10.1038/s41598-021-83852-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/09/2021] [Indexed: 11/17/2022] Open
Abstract
Human-wildlife coexistence is possible when animals can meet their ecological requirements while managing human-induced risks. Understanding how wildlife balance these trade-offs in anthropogenic environments is crucial to develop effective strategies to reduce risks of negative interactions, including bi-directional aggression and disease transmission. For the first time, we use a landscape of fear framework with Bayesian spatiotemporal modelling to investigate anthropogenic risk-mitigation and optimal foraging trade-offs in Critically Endangered western chimpanzees (Pan troglodytes verus). Using 12 months of camera trap data (21 camera traps, 6722 camera trap days) and phenology on wild and cultivated plant species collected at Caiquene–Cadique, Cantanhez National Park (Guinea-Bissau), we show that humans and chimpanzees broadly overlapped in their use of forest and anthropogenic parts of the habitat including villages and cultivated areas. The spatiotemporal model showed that chimpanzee use of space was predicted by the availability of naturalised oil-palm fruit. Chimpanzees used areas away from villages and agriculture more intensively, but optimised their foraging strategies by increasing their use of village areas with cultivated fruits when wild fruits were scarce. Our modelling approach generates fine-resolution space–time output maps, which can be scaled-up to identify human-wildlife interaction hotspots at the landscape level, informing coexistence strategy.
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Kaisin O, Fuzessy L, Poncin P, Brotcorne F, Culot L. A meta-analysis of anthropogenic impacts on physiological stress in wild primates. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2021; 35:101-114. [PMID: 33037677 DOI: 10.1111/cobi.13656] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/30/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
As humanity continues to alter the environment extensively, comprehending the effect of anthropogenic disturbances on the health, survival, and fitness of wildlife is a crucial question for conservation science. Many primate populations occupy suboptimal habitats prone to diverse anthropogenic disturbances that may be sources of acute and chronic stress. Quantification of glucocorticoid (GC) concentrations has repeatedly been used to explore the impact of disturbances on physiological stress. Although it is still debated, prolonged elevation of GC levels may impair reproduction, growth, and immune system activity of individuals. We quantified the effect of anthropogenic disturbances on physiological stress in primates with a global meta-analysis based on data from 26 articles, covering 24 distinct species in 13 different countries. Anthropogenic disturbances were classified into 6 distinct categories: habitat loss, habitat degradation, ongoing logging, hunting, tourism, and other human activities. We calculated effect sizes (Hedges' g) with the standardized mean difference in GC concentrations between primates affected by human activity and their undisturbed conspecifics. We ran random-effects models and subgroup analyses to estimate the overall effect as well as a cumulative effect size for each disturbance category. Overall, primates inhabiting sites subject to anthropogenic disturbances exhibited significantly higher GC levels (g = 0.60; 95% CI: 0.28-0.93). Habitat loss and hunting were overall associated with increased GC concentrations, whereas the cumulative effects of the other disturbances were not statistically significant. Biologically, high GC levels may increase fitness by enabling individuals to overcome the challenges linked to anthropogenic disturbances. However, primates in disturbed environments may have sustained elevated GC levels. To strengthen future research, it is necessary to control confounding factors systematically (e.g., diet, reproductive status, predatory pressure, and resource availability) and improve understanding of the link between GC levels and the health, fitness, and survival of animals.
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Affiliation(s)
- Olivier Kaisin
- Research Unit SPHERES, University of Liège, Avenue de Longwy 185, Arlon, 6700, Belgium
- Laboratório de Primatologia, Departamento de Zoologia, Universidade Estadual Paulista (UNESP), Avenida 24A, 1515, Rio Claro, Sao Paulo, 13506-900, Brazil
| | - Lisieux Fuzessy
- Laboratório de Primatologia, Departamento de Zoologia, Universidade Estadual Paulista (UNESP), Avenida 24A, 1515, Rio Claro, Sao Paulo, 13506-900, Brazil
| | - Pascal Poncin
- Research Unit FOCUS, University of Liège, Allée du six Août 11, Liège, 4000, Belgium
| | - Fany Brotcorne
- Research Unit SPHERES, University of Liège, Avenue de Longwy 185, Arlon, 6700, Belgium
| | - Laurence Culot
- Laboratório de Primatologia, Departamento de Zoologia, Universidade Estadual Paulista (UNESP), Avenida 24A, 1515, Rio Claro, Sao Paulo, 13506-900, Brazil
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29
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Lopes B, McEvoy JF, Morato RG, Luz HR, Costa FB, Benatti HR, Dias TDC, Rocha VJ, Ramos VDN, Piovezan U, Monticelli PF, Nievas AM, Pacheco RC, Moro MEG, Brasil J, Leimgruber P, Labruna MB, Ferraz KMPMDB. Human-modified landscapes alter home range and movement patterns of capybaras. J Mammal 2021. [DOI: 10.1093/jmammal/gyaa144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
The expansion of human activity forces species to co-exist with people in human-modified landscapes (HMLs). However, living in HMLs demands behavioral adaptations, and the proximity between wildlife and people heightens human–wildlife conflicts. Capybara (Hydrochoerus hydrochaeris) is a thriving rodent species in HMLs in Brazil and as such, is involved in human–wildlife conflicts, such as vehicle collisions and transmission of Brazilian spotted fever (BSF). Despite their public importance, the effects of HMLs on capybara movement behavior have never been investigated. Our study aimed to investigate changes in home range, ranging pattern, and activity, for capybaras in six HMLs and two natural landscapes (NLs) by monitoring capybaras with GPS collars. We found home ranges 2.43 times greater in NLs than in HMLs and differences in ranging pattern in HMLs. Capybaras tended to be more nocturnal and move shorter distances across HMLs than NLs. Our results confirm the impacts of the HMLs altering capybara movement. The aggregation of capybaras in very small home ranges might imply on greater risks of tick infestations. In addition, capybara–vehicle collision may be increased during capybaras’ nocturnal activity. Therefore, we recommend that transportation agencies avoid the construction of transportation infrastructures (roads, railways, airstrips) in capybaras’ home ranges, which should be of restricted access to people in BSF endemic areas.
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Affiliation(s)
- Beatriz Lopes
- Departamento de Ciências Florestais, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, SP, Brasil
| | - John F McEvoy
- Conservation Ecology Center, Smithsonian Conservation Biology Institute, Front Royal, VA, United State
| | - Ronaldo Gonçalves Morato
- Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros, Instituto Chico Mendes de Conservação da Biodiversidade, Atibaia, SP, Brasil
| | - Hermes R Luz
- Programa de Pós-graduação em Biotecnologia/Renorbio, Ponto Focal Maranhão, Universidade Federal do Maranhão, São Luís, MA, Brasil
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Francisco B Costa
- Faculdade de Medicina Veterinária, Universidade Estadual do Maranhão, São Luís, MA, Brasil
| | - Hector Ribeiro Benatti
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Thiago da Costa Dias
- Departamento de Ciências da Natureza, Matemática e educação, Centro de Ciências Agrárias, Universidade Federal de São Carlos, Araras, SP, Brasil
| | - Vlamir José Rocha
- Departamento de Ciências da Natureza, Matemática e educação, Centro de Ciências Agrárias, Universidade Federal de São Carlos, Araras, SP, Brasil
| | | | | | - Patricia Ferreira Monticelli
- Departamento de Psicologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Ana Maria Nievas
- Departamento de Psicologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Richard Campos Pacheco
- Programa de Pós-graduação em Ciências Veterinárias, Faculdade de Medicina Veterinária, Universidade Federal de Mato Grosso, Cuiabá, MT, Brasil
| | - Maria Estela Gaglianone Moro
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Jardel Brasil
- Secretaria Municipal de Saúde de Americana, Prefeitura de Americana, Americana, SP, Brasil
| | - Peter Leimgruber
- Conservation Ecology Center, Smithsonian Conservation Biology Institute, Front Royal, VA, United State
| | - Marcelo B Labruna
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
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30
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Cudney-Valenzuela SJ, Arroyo-Rodríguez V, Andresen E, Toledo-Aceves T, Mora-Ardila F, Andrade-Ponce G, Mandujano S. Does patch quality drive arboreal mammal assemblages in fragmented rainforests? Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2020.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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31
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Global distribution and conservation status of ecologically rare mammal and bird species. Nat Commun 2020; 11:5071. [PMID: 33033235 PMCID: PMC7545165 DOI: 10.1038/s41467-020-18779-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/09/2020] [Indexed: 01/23/2023] Open
Abstract
Identifying species that are both geographically restricted and functionally distinct, i.e. supporting rare traits and functions, is of prime importance given their risk of extinction and their potential contribution to ecosystem functioning. We use global species distributions and functional traits for birds and mammals to identify the ecologically rare species, understand their characteristics, and identify hotspots. We find that ecologically rare species are disproportionately represented in IUCN threatened categories, insufficiently covered by protected areas, and for some of them sensitive to current and future threats. While they are more abundant overall in countries with a low human development index, some countries with high human development index are also hotspots of ecological rarity, suggesting transboundary responsibility for their conservation. Altogether, these results state that more conservation emphasis should be given to ecological rarity given future environmental conditions and the need to sustain multiple ecosystem processes in the long-term.
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32
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Alcocer‐Rodríguez M, Arroyo‐Rodríguez V, Galán‐Acedo C, Cristóbal‐Azkarate J, Asensio N, Rito KF, Hawes JE, Veà JJ, Dunn JC. Evaluating extinction debt in fragmented forests: the rapid recovery of a critically endangered primate. Anim Conserv 2020. [DOI: 10.1111/acv.12648] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Alcocer‐Rodríguez
- Centre Especial de Recerca en Primats Facultat de Psicologia Universitat de Barcelona Barcelona Spain
| | - V. Arroyo‐Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - C. Galán‐Acedo
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - J. Cristóbal‐Azkarate
- Oinarrizko Psikologia Prosezuak eta Garapena Saila Psikologiako Fakultatea Euskal Herriko Unibertsitatea Donostia Gipuzkoa Spain
| | - N. Asensio
- Gizarte‐Psikologia eta Portaera Zientzien Metodologia Psikologia Fakultatea Euskal Herriko Unibertsitatea Donostia Gipuzkoa Spain
| | - K. F. Rito
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - J. E. Hawes
- School of Life Sciences Anglia Ruskin University Cambridge UK
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences 1430 Ås Norway
| | - J. J. Veà
- Centre Especial de Recerca en Primats Facultat de Psicologia Universitat de Barcelona Barcelona Spain
| | - Jacob C. Dunn
- School of Life Sciences Anglia Ruskin University Cambridge UK
- Division of Biological Anthropology University of Cambridge Cambridge UK
- Department of Cognitive Biology University of Vienna Vienna Austria
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33
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Classifying Chimpanzee (Pan troglodytes) Landscapes Across Large-Scale Environmental Gradients in Africa. INT J PRIMATOL 2020. [DOI: 10.1007/s10764-020-00164-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
AbstractPrimates are sometimes categorized in terms of their habitat. Although such categorization can be oversimplistic, there are scientific benefits from the clarity and consistency that habitat categorization can bring. Chimpanzees (Pan troglodytes) inhabit various environments, but researchers often refer to “forest” or “savanna” chimpanzees. Despite the wide use of this forest–savanna distinction, clear definitions of these landscapes for chimpanzees, based on environmental variables at study sites or determined in relation to existing bioclimatic classifications, are lacking. The robustness of the forest–savanna distinction thus remains to be assessed. We review 43 chimpanzee study sites to assess how the landscape classifications of researchers fit with the environmental characteristics of study sites and with three bioclimatic classifications. We use scatterplots and principal components analysis to assess the distribution of chimpanzee field sites along gradients of environmental variables (temperature, rainfall, precipitation seasonality, forest cover, and satellite-derived Hansen tree cover). This revealed an environmental continuum of chimpanzee study sites from savanna to dense forest, with a rarely acknowledged forest mosaic category in between, but with no natural separation into these three classes and inconsistencies with the bioclimatic classifications assessed. The current forest–savanna dichotomy therefore masks a progression of environmental adaptation for chimpanzees, and we propose that recognizing an additional, intermediate “forest mosaic” category is more meaningful than focusing on the ends of this environmental gradient only. Future studies should acknowledge this habitat continuum, place their study sites on the forest–savanna gradient, and include detailed environmental data to support further attempts at quantification.
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34
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Arroyo-Rodríguez V, Fahrig L, Tabarelli M, Watling JI, Tischendorf L, Benchimol M, Cazetta E, Faria D, Leal IR, Melo FPL, Morante-Filho JC, Santos BA, Arasa-Gisbert R, Arce-Peña N, Cervantes-López MJ, Cudney-Valenzuela S, Galán-Acedo C, San-José M, Vieira ICG, Slik JWF, Nowakowski AJ, Tscharntke T. Designing optimal human-modified landscapes for forest biodiversity conservation. Ecol Lett 2020; 23:1404-1420. [PMID: 32537896 DOI: 10.1111/ele.13535] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/05/2020] [Accepted: 04/27/2020] [Indexed: 12/19/2022]
Abstract
Agriculture and development transform forest ecosystems to human-modified landscapes. Decades of research in ecology have generated myriad concepts for the appropriate management of these landscapes. Yet, these concepts are often contradictory and apply at different spatial scales, making the design of biodiversity-friendly landscapes challenging. Here, we combine concepts with empirical support to design optimal landscape scenarios for forest-dwelling species. The supported concepts indicate that appropriately sized landscapes should contain ≥ 40% forest cover, although higher percentages are likely needed in the tropics. Forest cover should be configured with c. 10% in a very large forest patch, and the remaining 30% in many evenly dispersed smaller patches and semi-natural treed elements (e.g. vegetation corridors). Importantly, the patches should be embedded in a high-quality matrix. The proposed landscape scenarios represent an optimal compromise between delivery of goods and services to humans and preserving most forest wildlife, and can therefore guide forest preservation and restoration strategies.
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Affiliation(s)
- Víctor Arroyo-Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Lenore Fahrig
- Geomatics and Landscape Ecology Laboratory, Department of Biology, Carleton University, Ottawa, K1S 5B6, Canada
| | - Marcelo Tabarelli
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | | | - Lutz Tischendorf
- ELUTIS Modelling and Consulting Inc, Ottawa, ON, K2A 1X4, Canada
| | - Maíra Benchimol
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | - Eliana Cazetta
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | - Deborah Faria
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | - Inara R Leal
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Felipe P L Melo
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Jose C Morante-Filho
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | - Bráulio A Santos
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraiba, Campus I, João Pessoa, Paraiba, 58051-900, Brazil
| | - Ricard Arasa-Gisbert
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Norma Arce-Peña
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Martín J Cervantes-López
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Sabine Cudney-Valenzuela
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Carmen Galán-Acedo
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Miriam San-José
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, 58190, Mexico
| | - Ima C G Vieira
- Coordenação de Botânica, Museu Paraense Emilio Goeldi, CP 399, Belém, Pará, 66040-170, Brazil
| | - J W Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Gadong BE1410, Brunei, Darussalam
| | - A Justin Nowakowski
- Geomatics and Landscape Ecology Laboratory, Department of Biology, Carleton University, Ottawa, K1S 5B6, Canada.,Working Land and Seascapes, Conservation Commons, Smithsonian Institution, Washington, DC, 20013, USA
| | - Teja Tscharntke
- Agroecology, Dept. of Crop Sciences, Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Göttingen, Germany
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35
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Amato KR, Kuthyar S, Ekanayake‐Weber M, Salmi R, Snyder‐Mackler N, Wijayathunga L, Vandercone R, Lu A. Gut microbiome, diet, and conservation of endangered langurs in Sri Lanka. Biotropica 2020. [DOI: 10.1111/btp.12805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Katherine R. Amato
- Department of Anthropology Northwestern University Evanston Illinois USA
| | - Sahana Kuthyar
- Department of Anthropology Northwestern University Evanston Illinois USA
| | - Marcy Ekanayake‐Weber
- Interdepartmental Doctoral Program in Anthropological Sciences Stony Brook University Stony Brook New York USA
| | - Roberta Salmi
- Department of Anthropology University of Georgia Athens Georgia USA
- Kaludiyapokuna Primate Conservation and Research Project Dambulla Sri Lanka
| | | | | | - Rajnish Vandercone
- Kaludiyapokuna Primate Conservation and Research Project Dambulla Sri Lanka
- Department of Biological Sciences Rajarata University Mihintale Sri Lanka
| | - Amy Lu
- Kaludiyapokuna Primate Conservation and Research Project Dambulla Sri Lanka
- Department of Anthropology Stony Brook University Stony Brook New York USA
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36
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Nguyen AT, Van Nguyen T, Timmins R, McGowan P, Van Hoang T, Le MD. Efficacy of camera traps in detecting primates in Hue Saola Nature Reserve. Primates 2020; 61:697-705. [PMID: 32383126 DOI: 10.1007/s10329-020-00823-4] [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: 04/09/2019] [Accepted: 04/22/2020] [Indexed: 11/26/2022]
Abstract
Camera trapping has been demonstrated to be an effective tool in surveying a suite of species, especially elusive mammals in rough terrains. The method has become increasingly common in primate surveys for both ground-dwelling and arboreal taxa in many tropical regions of the world. However, camera trapping has rarely been used to inventory primates in Vietnam, although many species are under severe threats and in critical need of surveying for improved conservation measures. In this study, we employed camera trapping to primarily investigate the possible continued presence of galliform species, but also to opportunistically record primate species, in Hue Saola Nature Reserve in central Vietnam. We documented five primate species, including the northern pig-tailed macaque Macaca leonina, the stump-tailed macaque Macaca arctoides, the rhesus macaque Macaca mulatta, the pygmy slow loris Nycticebus pygmaeus, and the red-shanked douc Pygathrix nemaeus, which represents a majority of primate diversity in the reserve. The results show that camera trapping may be an option for documenting primate diversity, and seasonal and daily activities of ground-dwelling taxa. Our data also suggest that although human disturbance is still rampant in the area, Hue Saola Nature Reserve appears to be reasonably well protected compared to other conservation areas in Indochina. In particular, it is home to several highly threatened primates, and it therefore plays a crucial role in primate conservation in Vietnam. However, these populations are in need of greater protection, such as more targeted patrols to remove snares and prevent other violations.
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Affiliation(s)
- Anh Tuan Nguyen
- Department of Environmental Ecology, Faculty of Environmental Science, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan District, Hanoi, Vietnam
| | - Thanh Van Nguyen
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, Vietnam
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße 17, 10315, Berlin, Germany
| | | | - Philip McGowan
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Thang Van Hoang
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Minh Duc Le
- Department of Environmental Ecology, Faculty of Environmental Science, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan District, Hanoi, Vietnam.
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, Vietnam.
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Tédonzong LRD, Willie J, Makengveu ST, Lens L, Tagg N. Variation in behavioral traits of two frugivorous mammals may lead to differential responses to human disturbance. Ecol Evol 2020; 10:3798-3813. [PMID: 32313637 PMCID: PMC7160177 DOI: 10.1002/ece3.6178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 02/15/2020] [Accepted: 02/18/2020] [Indexed: 11/28/2022] Open
Abstract
Human activities can lead to a shift in wildlife species' spatial distribution. Understanding the specific effects of human activities on ranging behavior can improve conservation management of wildlife populations in human-dominated landscapes. This study evaluated the effects of forest use by humans on the spatial distribution of mammal species with different behavioral adaptations, using sympatric western lowland gorilla and central chimpanzee as focal species. We collected data on great ape nest locations, ecological and physical variables (habitat distribution, permanent rivers, and topographic data), and anthropogenic variables (distance to trails, villages, and a permanent research site). Here, we show that anthropogenic variables are important predictors of the distribution of wild animals. In the resource model, the distribution of gorilla nests was predicted by nesting habitat distribution, while chimpanzee nests were predicted first by elevation followed by nesting habitat distribution. In the anthropogenic model, the major predictors of gorilla nesting changed to human features, while the major predictors of chimpanzee nesting remained elevation and the availability of their preferred nesting habitats. Animal behavioral traits (body size, terrestrial/arboreal, level of specialization/generalization, and competitive inferiority/superiority) may influence the response of mammals to human activities. Our results suggest that chimpanzees may survive in human-encroached areas whenever the availability of their nesting habitat and preferred fruits can support their population, while a certain level of human activities may threaten gorillas. Consequently, the survival of gorillas in human-dominated landscapes is more at risk than that of chimpanzees. Replicating our research in other sites should permit a systematic evaluation of the influence of human activity on the distribution of mammal populations. As wild animals are increasingly exposed to human disturbance, understanding the resulting consequences of shifting species distributions due to human disturbance on animal population abundance and their long-term survival will be of growing conservation importance.
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Affiliation(s)
- Luc Roscelin Dongmo Tédonzong
- Projet Grands Singes (PGS), CameroonCentre for Research and Conservation (CRC)Royal Zoological Society of Antwerp (RZSA)AntwerpenBelgium
- Terrestrial Ecology Unit (TEREC)Department of BiologyGhent University (UGent)GhentBelgium
- Present address:
Wild Chimpanzee Foundation (WCF)MonroviaLiberia
| | - Jacob Willie
- Projet Grands Singes (PGS), CameroonCentre for Research and Conservation (CRC)Royal Zoological Society of Antwerp (RZSA)AntwerpenBelgium
- Terrestrial Ecology Unit (TEREC)Department of BiologyGhent University (UGent)GhentBelgium
| | - Sandra Tewamba Makengveu
- Projet Grands Singes (PGS), CameroonCentre for Research and Conservation (CRC)Royal Zoological Society of Antwerp (RZSA)AntwerpenBelgium
- Department of ForestryFaculty of Agronomy and Agricultural Sciences (FASA)University of DschangDschangCameroon
| | - Luc Lens
- Terrestrial Ecology Unit (TEREC)Department of BiologyGhent University (UGent)GhentBelgium
| | - Nikki Tagg
- Projet Grands Singes (PGS), CameroonCentre for Research and Conservation (CRC)Royal Zoological Society of Antwerp (RZSA)AntwerpenBelgium
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Coelho IP, Collins SJ, Santos Júnior EM, Valença‐Montenegro MM, Jerusalinsky L, Alonso AC. Playback point counts and N‐mixture models suggest higher than expected abundance of the critically endangered blond titi monkey in northeastern Brazil. Am J Primatol 2020; 82:e23126. [DOI: 10.1002/ajp.23126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 03/10/2020] [Accepted: 03/14/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Igor P. Coelho
- Departamento de Ecologia, Núcleo de Ecologia de Rodovias e FerroviasUniversidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Sara J. Collins
- Geomatics and Landscape Ecology Research LaboratoryCarleton University Ottawa Canada
| | - Eduardo M. Santos Júnior
- Centro Nacional de Pesquisa e Conservação de Primatas BrasileirosInstituto Chico Mendes de Conservação da Biodiversidade João Pessoa Brazil
| | - Mônica M. Valença‐Montenegro
- Centro Nacional de Pesquisa e Conservação de Primatas BrasileirosInstituto Chico Mendes de Conservação da Biodiversidade João Pessoa Brazil
| | - Leandro Jerusalinsky
- Centro Nacional de Pesquisa e Conservação de Primatas BrasileirosInstituto Chico Mendes de Conservação da Biodiversidade João Pessoa Brazil
| | - André C. Alonso
- Centro Nacional de Pesquisa e Conservação de Primatas BrasileirosInstituto Chico Mendes de Conservação da Biodiversidade João Pessoa Brazil
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Mercado Malabet F, Peacock H, Razafitsalama J, Birkinshaw C, Colquhoun I. Realized distribution patterns of crowned lemurs (Eulemur coronatus) within a human-dominated forest fragment in northern Madagascar. Am J Primatol 2020; 82:e23125. [PMID: 32202661 DOI: 10.1002/ajp.23125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 12/21/2022]
Abstract
Due to the impact of anthropogenic activities on forest extent and integrity across Madagascar, it is increasingly necessary to assess how endangered lemur populations inhabiting human-dominated forest fragments can effectively sustain themselves ecologically. Our research addresses this concern by exploring how the distribution patterns of a small population of crowned lemurs (Eulemur coronatus), occupying a degraded forest fragment at Oronjia Forest New Protected Area in northern Madagascar, are impacted by the availability of key ecological and anthropogenic factors. We hypothesize that the distribution of E. coronatus within the fragment is limited by the availability of critical ecological resources and conditions and the intensity of anthropogenic features and activities. To examine this, we used MaxEnt to develop a species distribution model using presence-only occurrence records and 10 independent background covariates detailing the site's ecological and anthropogenic aspects. The results indicate that the realized distribution patterns of E. coronatus within human-dominated forest fragments are strongly associated with sections of forest that contain sparsely and sporadically distributed resources, such as freshwater and continuous hardwood vegetation. We conclude that the distribution of E. coronatus at Oronjia is shaped by their need to maximize foraging opportunities in a degraded forest landscape where they are subject to both environmental and anthropogenic stressors.
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Affiliation(s)
- Fernando Mercado Malabet
- Department of Anthropology, University of Toronto, Toronto, Ontario, Canada.,School of the Environment, University of Toronto, Toronto, Ontario, Canada.,Department of Anthropology, University of Western Ontario, London, Ontario, Canada.,Centre for Environment & Sustainability, University of Western Ontario, London, Ontario, Canada
| | - Heather Peacock
- Department of Geography, University of Western Ontario, London, Ontario, Canada
| | | | | | - Ian Colquhoun
- Department of Anthropology, University of Western Ontario, London, Ontario, Canada.,Centre for Environment & Sustainability, University of Western Ontario, London, Ontario, Canada
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40
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San-José M, Arroyo-Rodríguez V, Meave JA. Regional context and dispersal mode drive the impact of landscape structure on seed dispersal. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02033. [PMID: 31677313 DOI: 10.1002/eap.2033] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/11/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Land-use change modifies the spatial structure of tropical landscapes, shaping global biodiversity patterns. Yet, it remains unknown how key ecological processes, such as seed dispersal, can be affected by changes in landscape patterns, and whether such effects differ among regions with different climate and disturbance intensity. We assessed the effect of five landscape metrics (forest cover, matrix openness, forest edge density, forest fragmentation, and interpatch distance) on the seed rain recorded in two Mexican fragmented regions (20 forest sites per region): the more deforested, defaunated, and windy Los Tuxtlas rainforest (LTX), and the better-preserved Lacandona rainforest (LAC). We quantified the proportions of dispersed tree species and their seeds, separately evaluating wind- and animal-dispersed species. Our findings support the hypothesis that forest loss is more important than fragmentation per se, negatively impacting the seed rain in both regions. As expected, landscape patterns were comparatively more important for wind-dispersed seeds in LTX, probably because of stronger wind events in this region. Specifically, proportions of wind-dispersed seeds and species decreased with increasing edge density, suggesting that forest edges prevent dispersal of wind-dispersed species, which may occur if edges create physical barriers that limit wind flow. This pattern can also be caused by source limitation in landscapes with more forest edges, as tree mortality rates usually increase at forest edges. The wind-dispersed seed rain was also positively related to matrix openness, especially in LTX, where wind flow can be favored by the dominance of treeless anthropogenic matrices. Surprisingly, the proportion of animal-dispersed seeds in LTX was positively related to matrix openness and patch isolation, suggesting that seed dispersers in more deforested regions may be forced to concentrate in isolated patches and use the available habitat more intensively. Yet, as expected, patch isolation limited wind-dispersed seeds in LAC. Therefore, dispersal (and potentially regeneration) of wind-dispersed trees is favored in regions exposed to stronger wind events, especially in landscapes dominated by regularly shaped patches surrounded by open areas. Conversely, animal-dispersed seeds are primarily favored by increasing forest cover. Preventing forest loss is therefore critical to promote animal seed dispersal and forest recovery in human-modified rainforests.
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Affiliation(s)
- Miriam San-José
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Ex-Hacienda de San José de la Huerta, 58190, Morelia, Michoacán, Mexico
| | - Víctor Arroyo-Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Ex-Hacienda de San José de la Huerta, 58190, Morelia, Michoacán, Mexico
| | - Jorge A Meave
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
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41
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Kling KJ, Yaeger K, Wright PC. Trends in forest fragment research in Madagascar: Documented responses by lemurs and other taxa. Am J Primatol 2020; 82:e23092. [PMID: 31960516 DOI: 10.1002/ajp.23092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 12/02/2019] [Accepted: 12/20/2019] [Indexed: 11/05/2022]
Abstract
The rise in research investigating fragmentation and its impact on primates and other taxa reflects the growing presence of fragmented landscapes themselves. Although numerous studies report the negative effects of fragmentation on biodiversity, it is difficult to generalize responses to fragmentation for specific taxonomic groups, such as non-human primates, when studies have not employed a definitive concept of fragmentation or fragments themselves. Madagascar's high degree of fragmentation, wealth of endemic taxa, and extensive history of ecological research provide the opportunity to compare fragmentation studies across similar contexts. We conducted a literature search of peer-reviewed articles on fragmentation in Madagascar to characterize its trends. A total of 70 articles, 46 of which concentrated on lemurs, tested the impacts of fragmentation on Malagasy taxa, while additional sources conducted research in one or more fragments without testing its effects (n = 112 total, 79 on lemurs). Studies on lemurs most frequently tested fragmentation's impacts on genetics and biodiversity metrics (n = 16 and 15 studies, respectively), although health, modeling, behavioral, and cross-disciplinary techniques were also reported. Responses to fragmentation were reported for 49 lemur species, with most studies concentrated in eastern Madagascar (87%). Although there was variation in the metrics reported in studies testing the effects of fragmentation on Malagasy species, the most common measures were fragment area, isolation, or comparison to a control site. Landscape-scale approaches and examination of fragmentation per se were rarely employed. Characterizing trends of fragmentation research in Madagascar emphasizes the challenges of documenting fragmentation's effects while highlighting the benefits of research within fragmented landscapes, particularly when combined with consideration for how the matrix within human-modified landscapes may impact primate populations.
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Affiliation(s)
- Katherine J Kling
- Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, New York
| | - Kimberley Yaeger
- Department of Anthropology, Stony Brook University, Stony Brook, New York
| | - Patricia C Wright
- Department of Anthropology, Stony Brook University, Stony Brook, New York.,Institute for the Conservation of Tropical Environments, Stony Brook University, Stony Brook, New York
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McLennan MR, Lorenti GA, Sabiiti T, Bardi M. Forest fragments become farmland: Dietary Response of wild chimpanzees (Pan troglodytes) to fast-changing anthropogenic landscapes. Am J Primatol 2020; 82:e23090. [PMID: 31944360 DOI: 10.1002/ajp.23090] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 12/04/2019] [Accepted: 12/20/2019] [Indexed: 11/09/2022]
Abstract
Behavioral flexibility, including an ability to modify feeding behavior, is a key trait enabling primates to survive in forest fragments. In human-dominated landscapes, unprotected forest fragments can become progressively degraded, and may be cleared entirely, challenging the capacity of primates to adjust to the changes. We examined responses of wild chimpanzees (Pan troglodytes schweinfurthii) to major habitat change: that is, clearance of forest fragments for agriculture. Over 7 years, fragments in Bulindi, Uganda, were reduced in size by 80%. We compared the chimpanzees' diet at the start and end of this period of rapid deforestation, using data derived mainly from fecal analysis. Similar to other long-term study populations, chimpanzees in Bulindi have a diverse diet comprising over 169 plant foods. However, extensive deforestation seemed to impact their feeding ecology. Dietary changes after fragment clearance included reduced overall frugivory, reduced intake of figs (Ficus spp.; formerly a dietary "staple" for these chimpanzees), and reduced variety of fruits in fecal samples. Nevertheless, the magnitude of most changes was remarkably minor given the extent of forest loss. Agricultural fruits increased in dietary importance, with crops accounting for a greater proportion of fruits in fecal samples after deforestation. In particular, cultivated jackfruit (Artocarpus heterophyllus) became a "staple" food for the chimpanzees but was scarcely eaten before fragment clearance. Crops offer some nutritional benefits for primates, being high in carbohydrate energy and low in hard-to-digest fiber. Thus, crop feeding may have offset foraging costs associated with loss of wild foods and reduced overall frugivory for the chimpanzees. The adaptability of many primates offers hope for their conservation in fragmented, rural landscapes. However, long-term data are needed to establish whether potential benefits (i.e. energetic, reproductive) of foraging in agricultural matrix habitats outweigh fitness costs from anthropogenic mortality risk for chimpanzees and other adaptable primates.
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Affiliation(s)
- Matthew R McLennan
- Department of Social Sciences, Oxford Brookes University, Oxford, UK.,Bulindi Chimpanzee and Community Project, Hoima, Uganda.,Centre for Ecology and Conservation, University of Exeter, Cornwall, UK
| | - Georgia A Lorenti
- Department of Social Sciences, Oxford Brookes University, Oxford, UK.,Bulindi Chimpanzee and Community Project, Hoima, Uganda
| | - Tom Sabiiti
- Bulindi Chimpanzee and Community Project, Hoima, Uganda
| | - Massimo Bardi
- Department of Psychology and Behavioral Neuroscience, Randolph-Macon College, Ashland, Tennessee
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Bicca-Marques JC, Chaves ÓM, Hass GP. Howler monkey tolerance to habitat shrinking: Lifetime warranty or death sentence? Am J Primatol 2020; 82:e23089. [PMID: 31912561 DOI: 10.1002/ajp.23089] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 12/14/2019] [Accepted: 12/20/2019] [Indexed: 01/10/2023]
Abstract
Habitat loss and fragmentation are major threats to the conservation of nonhuman primates. Given that species differ in their responses to fragmented landscapes, identifying the factors that enable them to cope with altered environments or that cause their extirpation is critical to design conservation management strategies. Howler monkeys (Alouatta spp.) are good models for studying the strategies of tolerant arboreal taxa and how they cope with spatial restriction, because they live in habitats ranging from vast pristine forests to small disturbed fragments and orchards. While some aspects of their ecology and behavior are conserved, others vary in predictable ways in response to habitat shrinking and decreasing resource availability. We argue that the ability of individual howler monkeys to inhabit low-quality environments does not guarantee the long-term persistence of the small populations that live under these conditions. Their local extirpation explains why few forest fragments below a given area threshold are frequently inhabited in landscapes where recolonization and gene flow are compromised by long isolation distances or less permeable matrices. In sum, howlers' ability to cope with habitat restriction at the individual level in the short-term may mask the inevitable fate of isolated populations, thereby compromising the persistence of the species at a regional scale in the long-term if howlers' need for protection in large forests is undervalued.
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Affiliation(s)
- Júlio César Bicca-Marques
- Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Óscar M Chaves
- Escuela de Biología, Universidad de Costa Rica, San Pedro de Montes de Oca, Costa Rica
| | - Gabriela Pacheco Hass
- Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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Monsarrat S, Jarvie S, Svenning JC. Anthropocene refugia: integrating history and predictive modelling to assess the space available for biodiversity in a human-dominated world. Philos Trans R Soc Lond B Biol Sci 2019; 374:20190219. [PMID: 31679484 PMCID: PMC6863493 DOI: 10.1098/rstb.2019.0219] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2019] [Indexed: 01/26/2023] Open
Abstract
During periods of strong environmental change, some areas may serve as refugia, where components of biodiversity can find protection, persist and potentially expand from should conditions again become favourable. The refugia concept has previously been used in the context of climatic change, to describe climatically stable areas in which taxa survived past Quaternary glacial-interglacial oscillations, or where they might persist in the future under anthropogenic climate change. However, with the recognition that Earth has entered the Anthropocene, an era in which human activities are the dominant driving force on ecosystems, it is critical to also consider human pressures on the environment as factors limiting species distributions. Here, we present a novel concept, Anthropocene refugia, to refer to areas that provide spatial and temporal protection from human activities and that will remain suitable for a given taxonomic unit in the long-term. It integrates a deep-time perspective on species biogeography that provides information on the natural rather than current-day relictual distribution of species, with spatial information on modern and future anthropogenic threats. We define the concept and propose a methodology to effectively identify and map realized and potential current and future refugia, using examples for two megafaunal species as a proof of concept. We argue that identifying Anthropocene refugia will improve biodiversity conservation and restoration by allowing better prediction of key areas for conservation and potential for re-expansions today and in the future. More generally, it forms a new conceptual framework to assess and manage the impact of anthropogenic activities on past, current and future patterns of species distributions. This article is part of a discussion meeting issue 'The past is a foreign country: how much can the fossil record actually inform conservation?'
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Affiliation(s)
- Sophie Monsarrat
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
| | - Scott Jarvie
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
| | - Jens-Christian Svenning
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
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45
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Llinares Á, Martínez-Abraín A, Veiga J. High foraging efficiency of Eurasian otters in a shallow Iberian reservoir. WILDLIFE BIOLOGY 2019. [DOI: 10.2981/wlb.00589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Ánxela Llinares
- Á. Llinares and A. Martínez-Abraín (https://orcid.org/0000-0001-8009-4331) ✉ , Dept of Biology, Evolutionary Biology Research Group (GIBE), Univ. da Coruña, Campus da Zapateira, ES-15008 A Coruña, Spain
| | - Alejandro Martínez-Abraín
- Á. Llinares and A. Martínez-Abraín (https://orcid.org/0000-0001-8009-4331) ✉ , Dept of Biology, Evolutionary Biology Research Group (GIBE), Univ. da Coruña, Campus da Zapateira, ES-15008 A Coruña, Spain
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46
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Galán-Acedo C, Arroyo-Rodríguez V, Andresen E, Arasa-Gisbert R. Ecological traits of the world's primates. Sci Data 2019; 6:55. [PMID: 31086194 PMCID: PMC6513815 DOI: 10.1038/s41597-019-0059-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 03/27/2019] [Indexed: 11/08/2022] Open
Abstract
Ecosystems largely depend, for both their functioning and their ecological integrity, on the ecological traits of the species that inhabit them. Non-human primates have a wide geographic distribution and play vital roles in ecosystem structure, function, and resilience. However, there is no comprehensive and updated compilation of information on ecological traits of all the world's primate species to accurately assess such roles at a global scale. Here we present a database on some important ecological traits of the world's primates (504 species), including home range size, locomotion type, diel activity, trophic guild, body mass, habitat type, current conservation status, population trend, and geographic realm. We compiled this information through a careful review of 1,216 studies published between 1941 and 2018, resulting in a comprehensive, easily accessible and user-friendly database. This database has broad applicability in primatological studies, and can potentially be used to address many research questions at all spatial scales, from local to global.
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Affiliation(s)
- Carmen Galán-Acedo
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, Mexico.
| | - Víctor Arroyo-Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, Mexico
| | - Ellen Andresen
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, Mexico
| | - Ricard Arasa-Gisbert
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, Mexico
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47
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Galán‐Acedo C, Arroyo‐Rodríguez V, Cudney‐Valenzuela SJ, Fahrig L. A global assessment of primate responses to landscape structure. Biol Rev Camb Philos Soc 2019; 94:1605-1618. [DOI: 10.1111/brv.12517] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/02/2019] [Accepted: 04/05/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Carmen Galán‐Acedo
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701Ex‐Hacienda de San José de la Huerta 58190 Morelia Mexico
| | - Víctor Arroyo‐Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701Ex‐Hacienda de San José de la Huerta 58190 Morelia Mexico
| | - Sabine J. Cudney‐Valenzuela
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro no. 8701Ex‐Hacienda de San José de la Huerta 58190 Morelia Mexico
| | - Lenore Fahrig
- Geomatics and Landscape Ecology Laboratory, Department of BiologyCarleton University Ottawa K1S 5B6 Canada
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