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Othman N, Mustapah MAS, Quilter AG, DeWan A. Understanding barriers and benefits to adopting elephant coexistence practices in oil palm plantation landscapes in Lower Kinabatangan, Sabah. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.989833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oil palm managers are one of the key stakeholders who could help strengthen efforts to protect elephants in the landscape. We used a Theory of Change (ToC) approach to hypothesize potential barriers and benefits to managers adopting best practise. We conducted two workshopss with more than 60 participants to better understand managers’ perceptions of Human Elephant Conflict (HEC) and their willingness to adopt better wildlife management practices. The workshops confirmed that some of the outcomes we perceived in the original ToC, including security issues, false accusations, negative perceptions by the international community and crop damage, were affecting their willingness to promote coexistence in their plantation. However, we also uncovered other potential barriers and opportunities to promote coexistence, including international and national standards that do not provide enough technical and practical guidance for all levels, expensive monitoring costs, and inconsistent collaboration among industry players and between government and non-government agencies. Our initial findings suggest that new attitudes and perceptions have not been explored before and may be critical for manager engagement and adoption of best practices for HEC, as well as the identification of new audiences that would need to be engaged to be successful in achieving elephant conservation goals.
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Understanding the spatial distribution and hot spots of collared Bornean elephants in a multi-use landscape. Sci Rep 2022; 12:12830. [PMID: 35896774 PMCID: PMC9329282 DOI: 10.1038/s41598-022-16630-4] [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: 01/04/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022] Open
Abstract
In the Kinabatangan floodplain, Sabah, Malaysian Borneo, oil palm and settlements have reduced and fragmented lowland tropical forests, home to around 200 endangered Bornean elephants (Elephas maximus borneensis). In this region, elephants range within forests, oil palm and community areas. The degree to which elephants are using these areas remains unclear. We used GPS telemetry data from 2010 to 2020 for 14 collared elephants to map their entire known ranges and highly used areas (hot spots) across four land use categories and estimate time spent within these. The use of land use types across elephants varied significantly. Typically, females had strong fidelity to forests, yet many of these forests are threatened with conversion. For the three males, and several females, they heavily used oil palm estates, and this may be due to decreased landscape permeability or foraging opportunities. At the pooled level, the entire range and hot spot extents, constituted 37% and 34% for protected areas, respectively, 8% and 11% for unprotected forests, 53% and 51% for oil palm estates, and 2% for community areas. Protecting all forested habitats and effectively managing areas outside of protected areas is necessary for the long-term survival of this population.
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“Engaging the Enemy”: Orangutan (Pongo pygmaeus morio) Conservation in Human Modified Environments in the Kinabatangan floodplain of Sabah, Malaysian Borneo. INT J PRIMATOL 2022. [DOI: 10.1007/s10764-022-00288-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Abstract
Throughout the equatorial tropics, forest conversion to agriculture often fragments crucial primate habitat. In 30 years, 80% of the alluvial lowland forests along the Kinabatangan River in Sabah, Malaysian Borneo, have been supplanted by oil palm (Elaeis guineensis) plantations. Today, only about 20% of the former orangutan (Pongo pygmaeus morio) population remains in the region. Because most of the land is now under the tenure of agribusiness companies, we used a pragmatic approach of mixed biosocial methods and citizen science engagement of oil palm growers (N = 6) as active conservation partners to study orangutan use of the privately administered landscape between protected forest fragments. We found that 22 of 25 remanent forest patches (0.5 to 242 hectares) surveyed within plantations contained food or shelter resources useful for orangutans. Of these, 20 are in regular transitory use by wider-ranging adult male orangutans, and in 9 patches, females are resident and raising offspring isolated within oil palm plantations. These findings indicate that orangutans retain a measure of normal metapopulation dynamics necessary for viability at the landscape level despite drastic habitat modification. We found that barriers to in situ conservation in these agroforest matrices were due to the following misconceptions across sectors: 1) Good farming practices require exclusion of wildlife; 2) Orangutans seen in plantations must be “rescued” by people; and 3) Translocation is an appropriate conservation strategy, and nondetrimental to orangutans. Our exploratory study exemplifies the value of biosocial methods and collaboration with industrial-scale farmers to support primate resilience in forests fragmented by agriculture.
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Mohd Hanafiah K, Abd Mutalib AH, Miard P, Goh CS, Mohd Sah SA, Ruppert N. Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies. SUSTAINABILITY SCIENCE 2022; 17:1639-1661. [PMID: 34667481 PMCID: PMC8517301 DOI: 10.1007/s11625-021-01052-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/28/2021] [Indexed: 05/10/2023]
Abstract
UNLABELLED Palm oil (PO) is an important source of livelihood, but unsustainable practices and widespread consumption may threaten human and planetary health. We reviewed 234 articles and summarized evidence on the impact of PO on health, social and economic aspects, environment, and biodiversity in the Malaysian context, and discuss mitigation strategies based on the sustainable development goals (SDGs). The evidence on health impact of PO is equivocal, with knowledge gaps on whether moderate consumption elevates risk for chronic diseases, but the benefits of phytonutrients (SDG2) and sensory characteristics of PO seem offset by its high proportion of saturated fat (SDG3). While PO contributes to economic growth (SDG9, 12), poverty alleviation (SDG1, 8, 10), enhanced food security (SDG2), alternative energy (SDG9), and long-term employment opportunities (SDG1), human rights issues and inequities attributed to PO production persist (SDG8). Environmental impacts arise through large-scale expansion of monoculture plantations associated with increased greenhouse gas emissions (SDG13), especially from converted carbon-rich peat lands, which can cause forest fires and annual trans-boundary haze; changes in microclimate properties and soil nutrient content (SDG6, 13); increased sedimentation and change of hydrological properties of streams near slopes (SDG6); and increased human wildlife conflicts, increase of invasive species occurrence, and reduced biodiversity (SDG14, 15). Practices such as biological pest control, circular waste management, multi-cropping and certification may mitigate negative impacts on environmental SDGs, without hampering progress of socioeconomic SDGs. While strategies focusing on improving practices within and surrounding plantations offer co-benefits for socioeconomic, environment and biodiversity-related SDGs, several challenges in achieving scalable solutions must be addressed to ensure holistic sustainability of PO in Malaysia for various stakeholders. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11625-021-01052-4.
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Affiliation(s)
- Khayriyyah Mohd Hanafiah
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Life Sciences, Macfarlane Burnet Institute, Melbourne, VIC 3004 Australia
| | - Aini Hasanah Abd Mutalib
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu Malaysia
| | - Priscillia Miard
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Chun Sheng Goh
- Jeffrey Cheah Institute on Southeast Asia, Sunway University, 47500 Bandar Sunway, Selangor Malaysia
| | | | - Nadine Ruppert
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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CHUA LIANA, FAIR HANNAH, SCHREER VIOLA, STĘPIEŃ ANNA, THUNG PAULHASAN. “Only the orangutans get a life jacket”. AMERICAN ETHNOLOGIST 2021. [DOI: 10.1111/amet.13045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- LIANA CHUA
- Department of Social Anthropology University of Cambridge Free School Lane Cambridge CB2 3RF United Kingdom
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Young KI, Buenemann M, Vasilakis N, Perera D, Hanley KA. Shifts in mosquito diversity and abundance along a gradient from oil palm plantations to conterminous forests in Borneo. Ecosphere 2021; 12. [PMID: 33996190 DOI: 10.1002/ecs2.3463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Deforestation precipitates spillover of enzootic, vector-borne viruses into humans, but specific mechanisms for this effect have rarely been investigated. Expansion of oil palm cultivation is a major driver of deforestation. Here, we demonstrate that mosquito abundance decreased over ten stepwise distances from interior forest into conterminous palm plantations in Borneo. Diversity in interior plantation narrowed to one species, Aedes albopictus, a potential bridge vector for spillover of multiple viruses. A. albopictus was equally abundant across all distances in forests, forest-plantation edge, and plantations, while A. niveus, a known vector of sylvatic dengue virus, was found only in forests. A. albopictus collections were significantly female-biased in plantation but not in edge or forest. Our data reveal that the likelihood of encountering any mosquito is greater in interior forest and edge than plantation, while the likelihood of encountering A. albopictus is equivalent across the gradient sampled from interior plantation to interior forest.
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Affiliation(s)
- Katherine I Young
- Department of Biology, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
| | - Michaela Buenemann
- Department of Geography, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
| | - Nikos Vasilakis
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, Center of Tropical Diseases, and Institute for Human Infections and Immunity, The University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555 USA
| | - David Perera
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300 Kota Samarahan, Sarawak, Malaysia
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
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Ng CKC, Payne J, Oram F. Small habitat matrix: How does it work? AMBIO 2021; 50:601-614. [PMID: 32915445 PMCID: PMC7882646 DOI: 10.1007/s13280-020-01384-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/07/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
We present herein our perspective of a novel Small Habitats Matrix (SHM) concept showing how small habitats on private lands are untapped but can be valuable for mitigating ecological degradation. Grounded by the realities in Sabah, Malaysian Borneo, we model a discontinuous "stepping stones" linkage that includes both terrestrial and aquatic habitats to illustrate exactly how the SHM can be deployed. Taken together, the SHM is expected to optimize the meta-population vitality in monoculture landscapes for aerial, arboreal, terrestrial and aquatic wildlife communities. We also provide the tangible cost estimates and discuss how such a concept is both economically affordable and plausible to complement global conservation initiatives. By proposing a practical approach to conservation in the rapidly developing tropics, we present a perspective from "ground zero" that reaches out to fellow scientists, funders, activists and pro-environmental land owners who often ask, "What more can we do?"
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Affiliation(s)
- Casey Keat-Chuan Ng
- Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar Barat, 31900 Kampar, Malaysia
| | - John Payne
- Borneo Rhino Alliance (BORA), Faculty Sains dan Sumber Alam, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Malaysia
| | - Felicity Oram
- PONGO Alliance, Units S10-12, 1st Floor, The Peak Vista, Block B Lorong Puncak 1, Tanjung Lipat, 88400 Kota Kinabalu, Malaysia
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Drivers of Bornean Orangutan Distribution across a Multiple-Use Tropical Landscape. REMOTE SENSING 2021. [DOI: 10.3390/rs13030458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Logging and conversion of tropical forests in Southeast Asia have resulted in the expansion of landscapes containing a mosaic of habitats that may vary in their ability to sustain local biodiversity. However, the complexity of these landscapes makes it difficult to assess abundance and distribution of some species using ground-based surveys alone. Here, we deployed a combination of ground-transects and aerial surveys to determine drivers of the critically endangered Bornean Orangutan (Pongo pygmaeus morio) distribution across a large multiple-use landscape in Sabah, Malaysian Borneo. Ground-transects and aerial surveys using drones were conducted for orangutan nests and hemi-epiphytic strangler fig trees (Ficus spp.) (an important food resource) in 48 survey areas across 76 km2, within a study landscape of 261 km2. Orangutan nest count data were fitted to models accounting for variation in land use, above-ground carbon density (ACD, a surrogate for forest quality), strangler fig density, and elevation (between 117 and 675 m). Orangutan nest counts were significantly higher in all land uses possessing natural forest cover, regardless of degradation status, than in monoculture plantations. Within these natural forests, nest counts increased with higher ACD and strangler fig density, but not with elevation. In logged forest (ACD 14–150 Mg ha−1), strangler fig density had a significant, positive relationship with orangutan nest counts, but this relationship disappeared in a forest with higher carbon content (ACD 150–209 Mg ha−1). Based on an area-to-area comparison, orangutan nest counts from ground transects were higher than from counts derived from aerial surveys, but this did not constitute a statistically significant difference. Although the difference in nest counts was not significantly different, this analysis indicates that both methods under-sample the total number of nests present within a given area. Aerial surveys are, therefore, a useful method for assessing the orangutan habitat use over large areas. However, the under-estimation of nest counts by both methods suggests that a small number of ground surveys should be retained in future surveys using this technique, particularly in areas with dense understory vegetation. This study shows that even highly degraded forests may be a suitable orangutan habitat as long as strangler fig trees remain intact after areas of forest are logged. Enrichment planting of strangler figs may, therefore, be a valuable tool for orangutan conservation in these landscapes.
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Abstract
With 15–20% of Indonesian oil palms located, without a legal basis and permits, within the forest zone (‘Kawasan hutan’), international concerns regarding deforestation affect the totality of Indonesian palm oil export. ‘Forest zone oil palm’ (FZ-OP) is a substantive issue that requires analysis and policy change. While spatial details of FZ-OP remain contested, we review literature on (1) the legal basis of the forest zone and its conversion, (2) social stratification in oil palm production (large-scale, plasma and independent growers), and (3) environmental consequences of forest conversion to FZ-OP, before discussing policy options in a range of social and ecological contexts. Policy options range from full regularization (as FZ-OP stands could meet international forest definitions), to conditional acceptance of diversified smallholder plantings in ‘agroforestry concessions’, to gradually phasing out FZ-OP and eviction/destruction. A nuanced and differentiated approach to FZ-OP is needed, as certification of legality along supply chains is vulnerable to illegal levies and corruption. Corporate actors trading internationally can avoid use of uncertified raw materials, effectively shifting blame and depressing farmgate prices for domestic-market palm oil, but this will not return forest conditions or stop further forest conversion. We discuss an agenda for follow-up policy research.
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Meijaard E, Brooks TM, Carlson KM, Slade EM, Garcia-Ulloa J, Gaveau DLA, Lee JSH, Santika T, Juffe-Bignoli D, Struebig MJ, Wich SA, Ancrenaz M, Koh LP, Zamira N, Abrams JF, Prins HHT, Sendashonga CN, Murdiyarso D, Furumo PR, Macfarlane N, Hoffmann R, Persio M, Descals A, Szantoi Z, Sheil D. The environmental impacts of palm oil in context. NATURE PLANTS 2020; 6:1418-1426. [PMID: 33299148 DOI: 10.1038/s41477-020-00813-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 10/29/2020] [Indexed: 05/12/2023]
Abstract
Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils and, in particular, palm oil, illustrates these competing demands and trade-offs. Palm oil accounts for ~40% of the current global annual demand for vegetable oil as food, animal feed and fuel (210 Mt), but planted oil palm covers less than 5-5.5% of the total global oil crop area (approximately 425 Mha) due to oil palm's relatively high yields. Recent oil palm expansion in forested regions of Borneo, Sumatra and the Malay Peninsula, where >90% of global palm oil is produced, has led to substantial concern around oil palm's role in deforestation. Oil palm expansion's direct contribution to regional tropical deforestation varies widely, ranging from an estimated 3% in West Africa to 50% in Malaysian Borneo. Oil palm is also implicated in peatland draining and burning in Southeast Asia. Documented negative environmental impacts from such expansion include biodiversity declines, greenhouse gas emissions and air pollution. However, oil palm generally produces more oil per area than other oil crops, is often economically viable in sites unsuitable for most other crops and generates considerable wealth for at least some actors. Global demand for vegetable oils is projected to increase by 46% by 2050. Meeting this demand through additional expansion of oil palm versus other vegetable oil crops will lead to substantial differential effects on biodiversity, food security, climate change, land degradation and livelihoods. Our Review highlights that although substantial gaps remain in our understanding of the relationship between the environmental, socio-cultural and economic impacts of oil palm, and the scope, stringency and effectiveness of initiatives to address these, there has been little research into the impacts and trade-offs of other vegetable oil crops. Greater research attention needs to be given to investigating the impacts of palm oil production compared to alternatives for the trade-offs to be assessed at a global scale.
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Affiliation(s)
- Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, Brunei.
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK.
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia.
| | - Thomas M Brooks
- Science and Knowledge Unit, IUCN, Gland, Switzerland
- World Agroforestry Center (ICRAF), University of The Philippines Los Baños, Laguna, The Philippines
- Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Kimberly M Carlson
- Department of Natural Resources and Environmental Management, University of Hawai'i Mānoa, Honolulu, HI, USA
- Department of Environmental Studies, New York University, New York, NY, USA
| | - Eleanor M Slade
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - John Garcia-Ulloa
- Department of Environmental Systems Science, ETH Zürich, Zurich, Switzerland
| | | | - Janice Ser Huay Lee
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - Truly Santika
- Borneo Futures, Bandar Seri Begawan, Brunei
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Diego Juffe-Bignoli
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
- UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC), Cambridge, UK
| | - Matthew J Struebig
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Serge A Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei
- Kinabatangan Orang-Utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Lian Pin Koh
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | | | - Jesse F Abrams
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Global Systems Institute and Institute for Data Science and Artificial Intelligence, University of Exeter, Exeter, UK
| | - Herbert H T Prins
- Animal Sciences Group, Wageningen University, Wageningen, the Netherlands
| | | | - Daniel Murdiyarso
- Center for International Forestry Research, Bogor, Indonesia
- Department of Geophysics and Meteorology, IPB University, Bogor, Indonesia
| | - Paul R Furumo
- Earth System Science, Stanford University, Stanford, CA, USA
| | | | - Rachel Hoffmann
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Marcos Persio
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Adrià Descals
- Centre de Recerca Ecològica i Aplicacions Forestals, Cerdanyola del Vallès, Barcelona, Spain
| | - Zoltan Szantoi
- European Commission, Joint Research Centre, Ispra, Italy
- Stellenbosch University, Stellenbosch, South Africa
| | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
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11
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Meijaard E, Brooks TM, Carlson KM, Slade EM, Garcia-Ulloa J, Gaveau DLA, Lee JSH, Santika T, Juffe-Bignoli D, Struebig MJ, Wich SA, Ancrenaz M, Koh LP, Zamira N, Abrams JF, Prins HHT, Sendashonga CN, Murdiyarso D, Furumo PR, Macfarlane N, Hoffmann R, Persio M, Descals A, Szantoi Z, Sheil D. The environmental impacts of palm oil in context. NATURE PLANTS 2020. [PMID: 33299148 DOI: 10.31223/osf.io/e69bz] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils and, in particular, palm oil, illustrates these competing demands and trade-offs. Palm oil accounts for ~40% of the current global annual demand for vegetable oil as food, animal feed and fuel (210 Mt), but planted oil palm covers less than 5-5.5% of the total global oil crop area (approximately 425 Mha) due to oil palm's relatively high yields. Recent oil palm expansion in forested regions of Borneo, Sumatra and the Malay Peninsula, where >90% of global palm oil is produced, has led to substantial concern around oil palm's role in deforestation. Oil palm expansion's direct contribution to regional tropical deforestation varies widely, ranging from an estimated 3% in West Africa to 50% in Malaysian Borneo. Oil palm is also implicated in peatland draining and burning in Southeast Asia. Documented negative environmental impacts from such expansion include biodiversity declines, greenhouse gas emissions and air pollution. However, oil palm generally produces more oil per area than other oil crops, is often economically viable in sites unsuitable for most other crops and generates considerable wealth for at least some actors. Global demand for vegetable oils is projected to increase by 46% by 2050. Meeting this demand through additional expansion of oil palm versus other vegetable oil crops will lead to substantial differential effects on biodiversity, food security, climate change, land degradation and livelihoods. Our Review highlights that although substantial gaps remain in our understanding of the relationship between the environmental, socio-cultural and economic impacts of oil palm, and the scope, stringency and effectiveness of initiatives to address these, there has been little research into the impacts and trade-offs of other vegetable oil crops. Greater research attention needs to be given to investigating the impacts of palm oil production compared to alternatives for the trade-offs to be assessed at a global scale.
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Affiliation(s)
- Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, Brunei.
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK.
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia.
| | - Thomas M Brooks
- Science and Knowledge Unit, IUCN, Gland, Switzerland
- World Agroforestry Center (ICRAF), University of The Philippines Los Baños, Laguna, The Philippines
- Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Kimberly M Carlson
- Department of Natural Resources and Environmental Management, University of Hawai'i Mānoa, Honolulu, HI, USA
- Department of Environmental Studies, New York University, New York, NY, USA
| | - Eleanor M Slade
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - John Garcia-Ulloa
- Department of Environmental Systems Science, ETH Zürich, Zurich, Switzerland
| | | | - Janice Ser Huay Lee
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - Truly Santika
- Borneo Futures, Bandar Seri Begawan, Brunei
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Diego Juffe-Bignoli
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
- UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC), Cambridge, UK
| | - Matthew J Struebig
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Serge A Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei
- Kinabatangan Orang-Utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Lian Pin Koh
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | | | - Jesse F Abrams
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Global Systems Institute and Institute for Data Science and Artificial Intelligence, University of Exeter, Exeter, UK
| | - Herbert H T Prins
- Animal Sciences Group, Wageningen University, Wageningen, the Netherlands
| | | | - Daniel Murdiyarso
- Center for International Forestry Research, Bogor, Indonesia
- Department of Geophysics and Meteorology, IPB University, Bogor, Indonesia
| | - Paul R Furumo
- Earth System Science, Stanford University, Stanford, CA, USA
| | | | - Rachel Hoffmann
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Marcos Persio
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Adrià Descals
- Centre de Recerca Ecològica i Aplicacions Forestals, Cerdanyola del Vallès, Barcelona, Spain
| | - Zoltan Szantoi
- European Commission, Joint Research Centre, Ispra, Italy
- Stellenbosch University, Stellenbosch, South Africa
| | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
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Sherman J, Ancrenaz M, Meijaard E. Shifting apes: Conservation and welfare outcomes of Bornean orangutan rescue and release in Kalimantan, Indonesia. J Nat Conserv 2020. [DOI: 10.1016/j.jnc.2020.125807] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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13
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Conservation and the social sciences: Beyond critique and co‐optation. A case study from orangutan conservation. PEOPLE AND NATURE 2020. [DOI: 10.1002/pan3.10072] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Figel JJ, Botero-Cañola S, Forero-Medina G, Sánchez-Londoño JD, Valenzuela L, Noss RF. Wetlands are keystone habitats for jaguars in an intercontinental biodiversity hotspot. PLoS One 2019; 14:e0221705. [PMID: 31509559 PMCID: PMC6738587 DOI: 10.1371/journal.pone.0221705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/13/2019] [Indexed: 11/17/2022] Open
Abstract
Agricultural development was the major contributor to South America's designation as the continent with the highest rates of forest loss from 2000-2012. As the apex predator in the Neotropics, jaguars (Panthera onca) are dependent on forest cover but the species' response to habitat fragmentation in heterogeneous agricultural landscapes has not been a subject of extensive research. We used occupancy as a measure of jaguar habitat use in Colombia's middle Magdalena River valley which, as part of the intercontinental Tumbes-Chocó-Magdalena biodiversity hotspot, is exceedingly fragmented by expanding cattle pastures and oil palm plantations. We used single-season occupancy models to analyze 9 months of data (2015-2016) from 70 camera trap sites. Given the middle Magdalena's status as a "jaguar corridor" and our possible violation of the occupancy models' demographic closure assumption, we interpreted our results as "probability of habitat use (Ψ)" by jaguars. We measured the associations between jaguar presence and coverage of forest, oil palm, and wetlands in radii buffers of 1, 3, and 5 km around each camera trap. Our camera traps recorded 77 jaguar detections at 25 of the camera trap sites (36%) during 15,305 trap nights. The probability of detecting jaguars, given their presence at a site, was 0.28 (0.03 SE). In the top-ranked model, jaguar habitat use was positively influenced by wetland coverage (β = 7.16, 3.20 SE) and negatively influenced by cattle pastures (β = -1.40, 0.63 SE), both in the 3 km buffers. We conclude that wetlands may serve as keystone habitats for jaguars in landscapes fragmented by cattle ranches and oil palm plantations. Greater focus on wetland preservation could facilitate jaguar persistence in one of the most important yet vulnerable areas of their distribution.
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Affiliation(s)
- Joe J. Figel
- Department of Biology, University of Central Florida, Orlando, Florida, United States of America
| | - Sebastián Botero-Cañola
- Harold W Manter Laboratory of Parasitology, University of Nebraska State Museum and School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
- Instituto de Biología, Grupo de Mastozoología, Universidad de Antioquia, Medellín, Colombia
| | | | - Juan David Sánchez-Londoño
- Facultad de Ciencias y Biotecnología, Universidad CES, Medellín, Colombia
- Fundación BioDiversa, Bogotá, Colombia
| | | | - Reed F. Noss
- Florida Institute for Conservation Science, Chuluota, Florida, United States of America
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15
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Seaman DJI, Bernard H, Ancrenaz M, Coomes D, Swinfield T, Milodowski DT, Humle T, Struebig MJ. Densities of Bornean orang-utans (Pongo pygmaeus morio) in heavily degraded forest and oil palm plantations in Sabah, Borneo. Am J Primatol 2019; 81:e23030. [PMID: 31328289 PMCID: PMC6771663 DOI: 10.1002/ajp.23030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 06/17/2019] [Accepted: 06/25/2019] [Indexed: 11/07/2022]
Abstract
The conversion of forest to agriculture continues to contribute to the loss and fragmentation of remaining orang-utan habitat. There are still few published estimates of orang-utan densities in these heavily modified agricultural areas to inform range-wide population assessments and conservation strategies. In addition, little is known about what landscape features promote orang-utan habitat use. Using indirect nest count methods, we implemented surveys and estimated population densities of the Northeast Bornean orang-utan (Pongo pygmaeus morio) across the continuous logged forest and forest remnants in a recently salvage-logged area and oil palm plantations in Sabah, Malaysian Borneo. We then assessed the influence of landscape features and forest structural metrics obtained from LiDAR data on estimates of orang-utan density. Recent salvage logging appeared to have a little short-term effect on orang-utan density (2.35 ind/km 2 ), which remained similar to recovering logged forest nearby (2.32 ind/km 2 ). Orang-utans were also present in remnant forest patches in oil palm plantations, but at significantly lower numbers (0.82 ind/km 2 ) than nearby logged forest and salvage-logged areas. Densities were strongly influenced by variation in canopy height but were not associated with other potential covariates. Our findings suggest that orang-utans currently exist, at least in the short-term, within human-modified landscapes, providing that remnant forest patches remain. We urge greater recognition of the role that these degraded habitats can have in supporting orang-utan populations, and that future range-wide analyses and conservation strategies better incorporate data from human-modified landscapes.
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Affiliation(s)
- Dave J I Seaman
- Durrell Institute of Con servation and Ecology (DICE), School of Anthropology and Conservation, University of Kent, Canterbury, UK
| | - Henry Bernard
- Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Marc Ancrenaz
- HUTAN-Kinabatangan Orangutan Conservation Programme, Sandakan, Sabah, Malaysia.,Borneo Futures, Bandar Seri Begawan, Brunei Darussalam
| | - David Coomes
- Department of Plant Sciences, Forest Ecology and Conservation Group, University of Cambridge, Cambridge, UK
| | - Thomas Swinfield
- Department of Plant Sciences, Forest Ecology and Conservation Group, University of Cambridge, Cambridge, UK.,Centre for Conservation Science, Royal Society for the Protection of Birds, David Attenborough Building, Cambridge, UK
| | | | - Tatyana Humle
- Durrell Institute of Con servation and Ecology (DICE), School of Anthropology and Conservation, University of Kent, Canterbury, UK
| | - Matthew J Struebig
- Durrell Institute of Con servation and Ecology (DICE), School of Anthropology and Conservation, University of Kent, Canterbury, UK
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16
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Tee SL, Solihhin A, Juffiry SA, Rinalfi Putra T, Lechner AM, Azhar B. The effect of oil palm agricultural expansion on group size of long-tailed macaques (Macaca fascicularis) in Peninsular Malaysia. Mamm Biol 2019. [DOI: 10.1016/j.mambio.2018.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Hayakawa T, Nathan SKSS, Stark DJ, Saldivar DAR, Sipangkui R, Goossens B, Tuuga A, Clauss M, Sawada A, Fukuda S, Imai H, Matsuda I. First report of foregut microbial community in proboscis monkeys: are diverse forests a reservoir for diverse microbiomes? ENVIRONMENTAL MICROBIOLOGY REPORTS 2018; 10:655-662. [PMID: 29992728 DOI: 10.1111/1758-2229.12677] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/02/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
Foregut fermentation is well known to occur in a wide range of mammalian species and in a single bird species. Yet, the foregut microbial community of free-ranging, foregut-fermenting monkeys, that is, colobines, has not been investigated so far. We analysed the foregut microbiomes in four free-ranging proboscis monkeys (Nasalis larvatus) from two different tropical habitats with varying plant diversity (mangrove and riverine forests), in an individual from a semi-free-ranging setting with supplemental feeding, and in an individual from captivity, using high-throughput sequencing based on 16S ribosomal RNA genes. We found a decrease in foregut microbial diversity from a diverse natural habitat (riverine forest) to a low diverse natural habitat (mangrove forest), to human-related environments. Of a total of 2700 bacterial operational taxonomic units (OTUs) detected in all environments, only 153 OTUs were shared across all individuals, suggesting that they were not influenced by diet or habitat. These OTUs were dominated by Firmicutes and Proteobacteria. The relative abundance of the habitat-specific microbial communities showed a wide range of differences among living environments, although such bacterial communities appeared to be dominated by Firmicutes and Bacteroidetes, suggesting that those phyla are key to understanding the adaptive strategy in proboscis monkeys living in different habitats.
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Affiliation(s)
- Takashi Hayakawa
- Department of Wildlife Science (Nagoya Railroad Co., Ltd.), Primate Research Institute, Kyoto University, Inuyama, Aichi, 484-8506, Japan
- Japan Monkey Centre, Inuyama, Aichi, 484-0081, Japan
| | - Senthilvel K S S Nathan
- Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
- Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK
| | - Danica J Stark
- Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK
- Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
| | - Diana A Ramirez Saldivar
- Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
- Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
| | - Rosa Sipangkui
- Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
| | - Benoit Goossens
- Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
- Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK
- Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
- Sustainable Places Research Institute, Cardiff University, 33 Park Place, Cardiff, CF10 3BA, UK
| | - Augustine Tuuga
- Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
| | - Marcus Clauss
- Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland
| | - Akiko Sawada
- Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto, 606-8522, Japan
- Japan Society for the Promotion of Science, Kojimachi Business Center Building, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo, 102-0083, Japan
| | - Shinji Fukuda
- Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata, 997-0052, Japan
- Intestinal Microbiota Project, Kanagawa Institute of Industrial Science and Technology, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
- Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan
| | - Hiroo Imai
- Department of Cellular and Molecular Biology, Primate Research Institute, Kyoto University, Inuyama, Aichi, 484-8506, Japan
| | - Ikki Matsuda
- Japan Monkey Centre, Inuyama, Aichi, 484-0081, Japan
- Chubu University Academy of Emerging Sciences, 1200, Matsumoto-cho, Kasugai-shi, Aichi, 487-8501, Japan
- Wildlife Research Center of Kyoto University, 2-24 Tanaka-Sekiden-cho, Sakyo, Kyoto, 606-8203, Japan
- Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
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18
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Abstract
Environmental stress on primate populations can take many forms. Abiotic factors, such as temperature and precipitation, may directly influence the behavior of primates owing to physiological demands of thermoregulation or through indirect influences on vegetation that primates rely on for food. These effects can also scale up to the macro scale, impacting primate distributions and evolution. Primates also encounter stress during interactions within and between species (i.e., biotic interactions). For example, selective pressure from male-perpetrated infanticide can drive the development of female counterstrategies and can impact life-history traits. Predation on primates can modify group size, ranging behavior, and habitat use. Finally, humans have influenced primate populations for millennia. More recently, hunting, habitat disturbance, disease, and climate change have increased in frequency and severity with detrimental impacts on primate populations worldwide. These effects and recent evidence from camera traps emphasize the importance of maintaining protected areas for conserving primate populations.
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Affiliation(s)
- Jason M. Kamilar
- Department of Anthropology and Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts, Amherst, Massachusetts 01002, USA
| | - Lydia Beaudrot
- Department of Ecology and Evolutionary Biology, and Michigan Society of Fellows, University of Michigan, Ann Arbor, Michigan 48109, USA
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19
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McCarthy MS, Lester JD, Langergraber KE, Stanford CB, Vigilant L. Genetic analysis suggests dispersal among chimpanzees in a fragmented forest landscape in Uganda. Am J Primatol 2018; 80:e22902. [PMID: 30052284 DOI: 10.1002/ajp.22902] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 05/26/2018] [Accepted: 07/07/2018] [Indexed: 11/05/2022]
Abstract
Habitat fragmentation is a leading threat to global biodiversity. Dispersal plays a key role in gene flow and population viability, but the impact of fragmentation on dispersal patterns remains poorly understood. Among chimpanzees, males typically remain in their natal communities while females often disperse. However, habitat loss and fragmentation may cause severe ecological disruptions, potentially resulting in decreased fitness benefits of male philopatry and limited female dispersal ability. To investigate this issue, we genotyped nearly 900 non-invasively collected chimpanzee fecal samples across a fragmented forest habitat that may function as a corridor between two large continuous forests in Uganda, and used the spatial associations among co-sampled genotypes to attribute a total of 229 individuals to 10 distinct communities, including 9 communities in the corridor habitat and 1 in continuous forest. We then used parentage analyses to infer instances of between-community dispersal. Of the 115 parent-offspring dyads detected with confidence, members of 39% (N = 26) of mother-daughter dyads were found in different communities, while members of 10% (N = 5) of father-son dyads were found in different communities. We also found direct evidence for one dispersal event that occurred during the study period, as a female's sample found first in one community was found multiple times in another community 19 months later. These findings suggest that even in fragmented habitats, chimpanzee males remain in their natal communities while females tend to disperse. Corridor enhancement in unprotected forest fragments could help maintain gene flow in chimpanzees and other species amid anthropogenic pressures.
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Affiliation(s)
- Maureen S McCarthy
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Jack D Lester
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Kevin E Langergraber
- School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona.,Institute of Human Origins, Arizona State University, Tempe, Arizona
| | - Craig B Stanford
- Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, California
| | - Linda Vigilant
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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20
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Estrada A, Garber PA, Mittermeier RA, Wich S, Gouveia S, Dobrovolski R, Nekaris K, Nijman V, Rylands AB, Maisels F, Williamson EA, Bicca-Marques J, Fuentes A, Jerusalinsky L, Johnson S, Rodrigues de Melo F, Oliveira L, Schwitzer C, Roos C, Cheyne SM, Martins Kierulff MC, Raharivololona B, Talebi M, Ratsimbazafy J, Supriatna J, Boonratana R, Wedana M, Setiawan A. Primates in peril: the significance of Brazil, Madagascar, Indonesia and the Democratic Republic of the Congo for global primate conservation. PeerJ 2018; 6:e4869. [PMID: 29922508 PMCID: PMC6005167 DOI: 10.7717/peerj.4869] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/10/2018] [Indexed: 11/20/2022] Open
Abstract
Primates occur in 90 countries, but four-Brazil, Madagascar, Indonesia, and the Democratic Republic of the Congo (DRC)-harbor 65% of the world's primate species (439) and 60% of these primates are Threatened, Endangered, or Critically Endangered (IUCN Red List of Threatened Species 2017-3). Considering their importance for global primate conservation, we examine the anthropogenic pressures each country is facing that place their primate populations at risk. Habitat loss and fragmentation are main threats to primates in Brazil, Madagascar, and Indonesia. However, in DRC hunting for the commercial bushmeat trade is the primary threat. Encroachment on primate habitats driven by local and global market demands for food and non-food commodities hunting, illegal trade, the proliferation of invasive species, and human and domestic-animal borne infectious diseases cause habitat loss, population declines, and extirpation. Modeling agricultural expansion in the 21st century for the four countries under a worst-case-scenario, showed a primate range contraction of 78% for Brazil, 72% for Indonesia, 62% for Madagascar, and 32% for DRC. These pressures unfold in the context of expanding human populations with low levels of development. Weak governance across these four countries may limit effective primate conservation planning. We examine landscape and local approaches to effective primate conservation policies and assess the distribution of protected areas and primates in each country. Primates in Brazil and Madagascar have 38% of their range inside protected areas, 17% in Indonesia and 14% in DRC, suggesting that the great majority of primate populations remain vulnerable. We list the key challenges faced by the four countries to avert primate extinctions now and in the future. In the short term, effective law enforcement to stop illegal hunting and illegal forest destruction is absolutely key. Long-term success can only be achieved by focusing local and global public awareness, and actively engaging with international organizations, multinational businesses and consumer nations to reduce unsustainable demands on the environment. Finally, the four primate range countries need to ensure that integrated, sustainable land-use planning for economic development includes the maintenance of biodiversity and intact, functional natural ecosystems.
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Affiliation(s)
- Alejandro Estrada
- Institute of Biology, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Paul A. Garber
- Department of Anthropology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | | | - Serge Wich
- School of Natural Sciences and Psychology and Institute for Biodiversity and Ecosystem Dynamics, Liverpool John Moores University and University of Amsterdam, Liverpool, UK
| | - Sidney Gouveia
- Department of Ecology, Federal University of Sergipe, São Cristóvão, Brazil
| | | | - K.A.I. Nekaris
- Department of Social Sciences, Oxford Brookes University, Oxford, UK
| | - Vincent Nijman
- Department of Social Sciences, Oxford Brookes University, Oxford, UK
| | | | - Fiona Maisels
- Global Conservation Program, Wildlife Conservation Society, NY, USA
- Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK
| | | | | | - Agustin Fuentes
- Department of Anthropology, University of Notre Dame, Notre Dame, IN, USA
| | - Leandro Jerusalinsky
- Instituto Chico Mendes de Conservação da Biodiversidade, Ministério do Meio Ambiente, Brasilia, Brazil
| | - Steig Johnson
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada
| | - Fabiano Rodrigues de Melo
- Universidade Federal de Goiás and Dept. Eng. Florestal, Campus UFV, UFV, Viçosa, Brazil, Jataí Viçosa, Brazil
| | - Leonardo Oliveira
- Departamento de Ciências, Faculdade de Formação de Professores, Universidade do Estado do Rio de Janeiro (DCIEN/FFP/UERJ), Rio de Janeiro, Brazil
| | | | - Christian Roos
- Deutsches Primatenzentrum, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Susan M. Cheyne
- Borneo Nature Foundation, Palangka Raya, Indonesia
- Oxford Brookes University, Oxford, UK
| | - Maria Cecilia Martins Kierulff
- Universidade Federal do Espírito Santo, Instituto Pri-Matas and Centro Universitário Norte do Espírito Santo, Belo Horizonte, Brazil
| | - Brigitte Raharivololona
- Mention Anthropobiologie et Développement Durable, University of Antananarivo, Antananarivo, Madagascar
| | - Mauricio Talebi
- Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
| | - Jonah Ratsimbazafy
- Groupe d’étude et de recherche sur les primates (Gerp), Antananarivo, Madagascar
| | - Jatna Supriatna
- Graduate Program in Conservation Biology, Department of Biology FMIPA, University of Indonesia, Depok, Indonesia
| | - Ramesh Boonratana
- Mahidol University International College, Salaya, Nakhon Pathom, Thailand
| | - Made Wedana
- The Aspinall Foundation–Indonesia Program, Bandung West Java, Indonesia
| | - Arif Setiawan
- SwaraOwa, Coffee and Primate Conservation Project, Java, Central Java, Indonesia
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21
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Spehar SN, Sheil D, Harrison T, Louys J, Ancrenaz M, Marshall AJ, Wich SA, Bruford MW, Meijaard E. Orangutans venture out of the rainforest and into the Anthropocene. SCIENCE ADVANCES 2018; 4:e1701422. [PMID: 29963619 PMCID: PMC6021148 DOI: 10.1126/sciadv.1701422] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Conservation benefits from understanding how adaptability and threat interact to determine a taxon's vulnerability. Recognizing how interactions with humans have shaped taxa such as the critically endangered orangutan (Pongo spp.) offers insights into this relationship. Orangutans are viewed as icons of wild nature, and most efforts to prevent their extinction have focused on protecting minimally disturbed habitat, with limited success. We synthesize fossil, archeological, genetic, and behavioral evidence to demonstrate that at least 70,000 years of human influence have shaped orangutan distribution, abundance, and ecology and will likely continue to do so in the future. Our findings indicate that orangutans are vulnerable to hunting but appear flexible in response to some other human activities. This highlights the need for a multifaceted, landscape-level approach to orangutan conservation that leverages sound policy and cooperation among government, private sector, and community stakeholders to prevent hunting, mitigate human-orangutan conflict, and preserve and reconnect remaining natural forests. Broad cooperation can be encouraged through incentives and strategies that focus on the common interests and concerns of different stakeholders. Orangutans provide an illustrative example of how acknowledging the long and pervasive influence of humans can improve strategies to preserve biodiversity in the Anthropocene.
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Affiliation(s)
- Stephanie N. Spehar
- Anthropology Program, University of Wisconsin Oshkosh, Oshkosh, WI 54901, USA
| | - Douglas Sheil
- Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, 1430 Ås, Norway
| | - Terry Harrison
- Department of Anthropology, New York University, New York, NY 10003, USA
| | - Julien Louys
- Australian Research Center for Human Evolution, Environmental Futures Research Institute, Griffith University, Brisbane, Queensland, Australia
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, BE1518 Brunei Darussalam
- Kinabatangan Orang-Utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Andrew J. Marshall
- Department of Anthropology, Department of Ecology and Evolutionary Biology, Program in the Environment, and School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA
| | - Serge A. Wich
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 3AF, UK
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, Amsterdam 1098, Netherlands
| | - Michael W. Bruford
- Sustainable Places Research Institute and School of Biosciences, Cardiff University, Cardiff, UK
| | - Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, BE1518 Brunei Darussalam
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia
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22
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McLennan MR. Tie one on: 'nest tying' by wild chimpanzees at Bulindi-a variant of a universal great ape behavior? Primates 2018; 59:227-233. [PMID: 29511901 DOI: 10.1007/s10329-018-0658-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 02/26/2018] [Indexed: 10/17/2022]
Abstract
With data accumulating from a growing pool of chimpanzee field studies, new behaviors as well as novel variants on common behaviors continue to be described. Nest construction is a universal behavior in wild great apes. Among chimpanzee populations, reported variation in nest building behavior mostly reflects environmental constraints. Despite the ubiquity of nest making by chimpanzees, only ground nesting has been recognized as a behavioral variant, potentially determined by both environmental and social factors. In a study of nests made by chimpanzees (Pan troglodytes schweinfurthii) in Bulindi, Uganda, I identified a hitherto undescribed nest construction technique, termed 'nest tying'. Five observed nests lacked strong weight-bearing structures beneath them, such as large branches or a supporting trunk. Instead, the nests appeared 'tied' (or 'tethered') to an adjacent trunk by looping leafy stems or palm fronds around it and interweaving these into the nest mattress, securing the nest against the trunk; thus, nest tying presumably functions to provide added stability and support. This preliminary report presents a description of the observed nests. Irrespective of whether nest tying constitutes true knot making-commonly considered absent in wild great apes-this nest construction technique would seem to require advanced dexterity and a sophisticated understanding of the mechanical properties of the plants used. Forest fragments in Bulindi are highly degraded. Thus, nest tying-and construction of integrated nests (i.e., utilizing multiple plants, often small trees and shrubs) generally-may be promoted by a relative paucity of suitable nesting trees at this site. Still, insofar as nest building is learned in chimpanzees, different construction techniques including nest tying are potentially acquired through social learning. Further investigation is required to ascertain the prevalence and acquisition of this nest construction technique at Bulindi, and to verify its presence or absence in other habitats.
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Affiliation(s)
- Matthew R McLennan
- Faculty of Humanities and Social Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford, OX3 0BP, UK. .,Bulindi Chimpanzee and Community Project, PO Box 245, Hoima, Uganda.
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23
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Voigt M, Wich SA, Ancrenaz M, Meijaard E, Abram N, Banes GL, Campbell-Smith G, d'Arcy LJ, Delgado RA, Erman A, Gaveau D, Goossens B, Heinicke S, Houghton M, Husson SJ, Leiman A, Sanchez KL, Makinuddin N, Marshall AJ, Meididit A, Miettinen J, Mundry R, Musnanda, Nardiyono, Nurcahyo A, Odom K, Panda A, Prasetyo D, Priadjati A, Purnomo, Rafiastanto A, Russon AE, Santika T, Sihite J, Spehar S, Struebig M, Sulbaran-Romero E, Tjiu A, Wells J, Wilson KA, Kühl HS. Global Demand for Natural Resources Eliminated More Than 100,000 Bornean Orangutans. Curr Biol 2018; 28:761-769.e5. [PMID: 29456144 DOI: 10.1016/j.cub.2018.01.053] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/07/2018] [Accepted: 01/18/2018] [Indexed: 11/30/2022]
Abstract
Unsustainable exploitation of natural resources is increasingly affecting the highly biodiverse tropics [1, 2]. Although rapid developments in remote sensing technology have permitted more precise estimates of land-cover change over large spatial scales [3-5], our knowledge about the effects of these changes on wildlife is much more sparse [6, 7]. Here we use field survey data, predictive density distribution modeling, and remote sensing to investigate the impact of resource use and land-use changes on the density distribution of Bornean orangutans (Pongo pygmaeus). Our models indicate that between 1999 and 2015, half of the orangutan population was affected by logging, deforestation, or industrialized plantations. Although land clearance caused the most dramatic rates of decline, it accounted for only a small proportion of the total loss. A much larger number of orangutans were lost in selectively logged and primary forests, where rates of decline were less precipitous, but where far more orangutans are found. This suggests that further drivers, independent of land-use change, contribute to orangutan loss. This finding is consistent with studies reporting hunting as a major cause in orangutan decline [8-10]. Our predictions of orangutan abundance loss across Borneo suggest that the population decreased by more than 100,000 individuals, corroborating recent estimates of decline [11]. Practical solutions to prevent future orangutan decline can only be realized by addressing its complex causes in a holistic manner across political and societal sectors, such as in land-use planning, resource exploitation, infrastructure development, and education, and by increasing long-term sustainability [12]. VIDEO ABSTRACT.
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Affiliation(s)
- Maria Voigt
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany.
| | - Serge A Wich
- Research Centre in Evolutionary Anthropology, and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei Darussalam; HUTAN-Kinabatangan Orangutan Conservation Programme, Sandakan, Sabah, Malaysia
| | - Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, Brunei Darussalam; ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia
| | - Nicola Abram
- ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia; School of Biological Sciences, The University of Queensland, Brisbane, QLD, Australia; Living Landscape Alliance, 5 Jupiter House Calleva Park, Berkshire RG7 8NN, UK; Forever Sabah, H30 Gaya Park, Lorong Muntahan 1C, Penampang Road, 88300 Kota Kinabalu, Sabah, Malaysia
| | - Graham L Banes
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany; School of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, Aberdeen AB24 2TZ, UK; CAS-MPG Partner Institute for Computational Biology, 320 Yue Yang Road, Shanghai 200031, People's Republic of China
| | | | - Laura J d'Arcy
- Borneo Nature Foundation, JL. Bukit Raya No. 82, Bukit Raya, Palangka Raya 73112, Indonesia; Zoological Society of London, London, UK
| | - Roberto A Delgado
- Departments of Anthropology and Biological Sciences, Program in Integrative and Evolutionary Biology (IEB), University of Southern California, Los Angeles, Los Angeles, CA, USA
| | - Andi Erman
- Kapuas Hulu Program, GFA/KWF, West Kalimantan, Indonesia
| | - David Gaveau
- Center for International Forestry Research, P.O. Box 0113 BOCBD, Bogor 16000, Indonesia
| | - Benoit Goossens
- Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Cardiff, UK; Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma Muis, 88100 Kota Kinabalu, Sabah, Malaysia; Sustainable Places Research Institute, Cardiff University, Cardiff, UK
| | - Stefanie Heinicke
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany
| | - Max Houghton
- Research Centre in Evolutionary Anthropology, and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Simon J Husson
- Orangutan Tropical Peatland Project, The Center for International Cooperation in the Sustainable Management of Tropical Peatlands (CIMTROP), University of Palangka Raya, Central Kalimantan, Indonesia
| | | | | | | | - Andrew J Marshall
- Department of Anthropology, Department of Ecology and Evolutionary Biology, Program in the Environment, and School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ari Meididit
- Biology Faculty, Universitas Nasional (UNAS), Jakarta, Indonesia; Central Kalimantan Program, World Wide Fund for Nature-Indonesia (WWF-Indonesia), JL. Krakatau No. 12, Palangka Raya, Central Kalimantan 73112, Indonesia
| | - Jukka Miettinen
- Centre for Remote Imaging, Sensing and Processing (CRISP), National University of Singapore (NUS), Singapore 119076, Singapore
| | - Roger Mundry
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| | - Musnanda
- The Nature Conservancy (TNC) Indonesia, Jakarta, Indonesia
| | - Nardiyono
- Austindo Nusantara Jaya, Jakarta 12910, Indonesia
| | - Anton Nurcahyo
- College of Arts and Social Sciences, The Australian National University, Canberra, ACT, Australia
| | - Kisar Odom
- Borneo Orangutan Survival Foundation (BOSF), JL. Papandayan No.10, Bogor 16151 West Java, Indonesia
| | - Adventus Panda
- Central Kalimantan Program, World Wide Fund for Nature-Indonesia (WWF-Indonesia), JL. Krakatau No. 12, Palangka Raya, Central Kalimantan 73112, Indonesia
| | - Didik Prasetyo
- The Indonesian Association of Primatologists (PERHAPPI), Bogor, Indonesia
| | | | - Purnomo
- The Nature Conservancy (TNC) Indonesia, Jakarta, Indonesia
| | | | - Anne E Russon
- Psychology Department, Glendon College of York University, 2275 Bayview Avenue, Toronto, ON M4N 3M6, Canada
| | - Truly Santika
- Borneo Futures, Bandar Seri Begawan, Brunei Darussalam; ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia; School of Biological Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Jamartin Sihite
- Borneo Orangutan Survival Foundation (BOSF), JL. Papandayan No.10, Bogor 16151 West Java, Indonesia; Restorasi Habitat Orangutan Indonesia (RHOI), Bogor, West Java, Indonesia
| | - Stephanie Spehar
- Anthropology Program, University of Wisconsin Oshkosh, Oshkosh, WI, USA
| | - Matthew Struebig
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, Canterbury CT2 7NR, UK
| | - Enrique Sulbaran-Romero
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany
| | - Albertus Tjiu
- West Kalimantan Program, World Wide Fund for Nature-Indonesia (WWF-Indonesia), JL. Karna Sosial, Gg. Wonoyoso 2 No. 3, Pontianak 78124 West Kalimantan, Indonesia
| | - Jessie Wells
- ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia; School of Biological Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Kerrie A Wilson
- ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia; School of Biological Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Hjalmar S Kühl
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany
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Does the Vulnerable sun bear Helarctos malayanus damage crops and threaten people in oil palm plantations? ORYX 2017. [DOI: 10.1017/s0030605317001089] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
AbstractLargely as a result of the expansion of oil palm Elaeis guineensis, forest fragmentation has occurred on a large scale in Borneo. There is much concern about how forest-dependent species, such as the Vulnerable sun bear Helarctos malayanus, can persist in this landscape. The absence of sufficient natural food in forest fragments could drive sun bears into oil palm plantations, where they risk coming into conflict with people. We interviewed oil palm plantation workers and farmers in the Lower Kinabatangan region of Sabah, Malaysian Borneo, to ascertain if sun bears were utilizing plantations, if they were causing damage to the crop, and how the bears were perceived by people. To obtain a comparative baseline we extended these questions to include other species as well. We found that bears were rarely encountered in plantations and were not considered to be destructive to the oil palm crop, although they were generally feared. Other species, such as macaques Macaca spp., bearded pigs Sus barbatus, and elephants Elephas maximus, had more destructive feeding habits. Sun bears could use this readily available food resource without being targeted for retribution, although incidental human-related mortality remains a risk. Although bears could gain some nutritional benefit from oil palm, plantations do not provide the diversity of food and cover available in a natural forest.
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25
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Canopy structure drives orangutan habitat selection in disturbed Bornean forests. Proc Natl Acad Sci U S A 2017; 114:8307-8312. [PMID: 28720703 DOI: 10.1073/pnas.1706780114] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The conservation of charismatic and functionally important large species is becoming increasingly difficult. Anthropogenic pressures continue to squeeze available habitat and force animals into degraded and disturbed areas. Ensuring the long-term survival of these species requires a well-developed understanding of how animals use these new landscapes to inform conservation and habitat restoration efforts. We combined 3 y of highly detailed visual observations of Bornean orangutans with high-resolution airborne remote sensing (Light Detection and Ranging) to understand orangutan movement in disturbed and fragmented forests of Malaysian Borneo. Structural attributes of the upper forest canopy were the dominant determinant of orangutan movement among all age and sex classes, with orangutans more likely to move in directions of increased canopy closure, tall trees, and uniform height, as well as avoiding canopy gaps and moving toward emergent crowns. In contrast, canopy vertical complexity (canopy layering and shape) did not affect movement. Our results suggest that although orangutans do make use of disturbed forest, they select certain canopy attributes within these forests, indicating that not all disturbed or degraded forest is of equal value for the long-term sustainability of orangutan populations. Although the value of disturbed habitats needs to be recognized in conservation plans for wide-ranging, large-bodied species, minimal ecological requirements within these habitats also need to be understood and considered if long-term population viability is to be realized.
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26
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McLennan MR, Hasegawa H, Bardi M, Huffman MA. Gastrointestinal parasite infections and self-medication in wild chimpanzees surviving in degraded forest fragments within an agricultural landscape mosaic in Uganda. PLoS One 2017; 12:e0180431. [PMID: 28692673 PMCID: PMC5503243 DOI: 10.1371/journal.pone.0180431] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 06/15/2017] [Indexed: 12/25/2022] Open
Abstract
Monitoring health in wild great apes is integral to their conservation and is especially important where they share habitats with humans, given the potential for zoonotic pathogen exchange. We studied the intestinal parasites of wild chimpanzees (Pan troglodytes schweinfurthii) inhabiting degraded forest fragments amid farmland and villages in Bulindi, Uganda. We first identified protozoan and helminth parasites infecting this population. Sixteen taxa were demonstrated microscopically (9 protozoa, 5 nematodes, 1 cestode, and 1 trematode). DNA sequence analysis enabled more precise identification of larval nematodes (e.g. Oesophagostomum stephanostomum, O. bifurcum, Strongyloides fuelleborni, Necator sp. Type II) and tapeworm proglottids (genus Bertiella). To better understand the ecology of infections, we used multidimensional scaling analysis to reveal general patterns of association among parasites, climate, and whole leaf swallowing-a prevalent self-medicative behaviour at Bulindi linked to control of nodular worms (Oesophagostomum spp.). Prevalence of parasites varied with climate in diverse ways. For example, Oesophagostomum sp. was detected in faeces at higher frequencies with increasing rainfall but was most clearly associated with periods of low temperature. Certain parasites occurred together within chimpanzee hosts more or less frequently than expected by chance. For example, the commensal ciliate Troglodytella abrassarti was negatively associated with Balantidium coli and Oesophagostomum sp., possibly because the latter taxa make the large intestine less suitable for T. abrassarti. Whole leaves in faeces showed independent associations with the prevalence of Oesophagostomum sp., Strongyloides sp., and hookworm by microscopic examination, and with egestion of adult O. stephanostomum by macroscopic inspection. All parasites identified to species or genus have been reported in wild chimpanzees inhabiting less-disturbed environments than Bulindi. Nevertheless, several disease-causing taxa infecting these chimpanzees are potentially transmissible between apes and humans (e.g. rhabditoid and strongyle nematodes), underscoring the importance of identifying and reducing risks of pathogen exchange in shared landscapes.
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Affiliation(s)
- Matthew R. McLennan
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, United Kingdom
- Bulindi Chimpanzee and Community Project, Hoima, Uganda
| | - Hideo Hasegawa
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Hasama, Yufu, Oita, Japan
- Department of Biology, Faculty of Medicine, Oita University, Hasama, Yufu, Oita, Japan
| | - Massimo Bardi
- Department of Psychology and Behavioral Neuroscience, Randolph-Macon College, Ashland, Virginia, United States of America
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27
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Santika T, Ancrenaz M, Wilson KA, Spehar S, Abram N, Banes GL, Campbell-Smith G, Curran L, d'Arcy L, Delgado RA, Erman A, Goossens B, Hartanto H, Houghton M, Husson SJ, Kühl HS, Lackman I, Leiman A, Llano Sanchez K, Makinuddin N, Marshall AJ, Meididit A, Mengersen K, Musnanda, Nardiyono, Nurcahyo A, Odom K, Panda A, Prasetyo D, Purnomo, Rafiastanto A, Raharjo S, Ratnasari D, Russon AE, Santana AH, Santoso E, Sapari I, Sihite J, Suyoko A, Tjiu A, Utami-Atmoko SS, van Schaik CP, Voigt M, Wells J, Wich SA, Willems EP, Meijaard E. First integrative trend analysis for a great ape species in Borneo. Sci Rep 2017; 7:4839. [PMID: 28687788 PMCID: PMC5501861 DOI: 10.1038/s41598-017-04435-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 05/16/2017] [Indexed: 11/09/2022] Open
Abstract
For many threatened species the rate and drivers of population decline are difficult to assess accurately: species' surveys are typically restricted to small geographic areas, are conducted over short time periods, and employ a wide range of survey protocols. We addressed methodological challenges for assessing change in the abundance of an endangered species. We applied novel methods for integrating field and interview survey data for the critically endangered Bornean orangutan (Pongo pygmaeus), allowing a deeper understanding of the species' persistence through time. Our analysis revealed that Bornean orangutan populations have declined at a rate of 25% over the last 10 years. Survival rates of the species are lowest in areas with intermediate rainfall, where complex interrelations between soil fertility, agricultural productivity, and human settlement patterns influence persistence. These areas also have highest threats from human-wildlife conflict. Survival rates are further positively associated with forest extent, but are lower in areas where surrounding forest has been recently converted to industrial agriculture. Our study highlights the urgency of determining specific management interventions needed in different locations to counter the trend of decline and its associated drivers.
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Affiliation(s)
- Truly Santika
- The University of Queensland, School of Biological Sciences, Brisbane, QLD, Australia. .,ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia. .,Borneo Futures, Bandar Seri Begawan, Brunei Darussalam.
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei Darussalam.,Kinabatangan Orang-utan Conservation Programme, Sandakan, Sabah, Malaysia
| | - Kerrie A Wilson
- The University of Queensland, School of Biological Sciences, Brisbane, QLD, Australia.,ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia
| | - Stephanie Spehar
- Anthropology Program, University of Wisconsin Oshkosh, Oshkosh, WI, USA
| | - Nicola Abram
- The University of Queensland, School of Biological Sciences, Brisbane, QLD, Australia.,ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia.,Living Landscape Alliance, 5 Jupiter House Calleva Park, Berkshire, RG7 8NN, United Kingdom
| | - Graham L Banes
- School of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, Aberdeen, AB24 2TZ, United Kingdom.,CAS-MPG Partner Institute for Computational Biology, 320 Yue Yang Road, Shanghai, 200031, People's Republic of China.,Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany
| | | | - Lisa Curran
- Department of Anthropology, Stanford University, Stanford, California, USA
| | - Laura d'Arcy
- Orangutan Tropical Peatland Project, The Center for International Cooperation in the Sustainable Management of Tropical Peatlands (CIMTROP), University of Palangka Raya, Central Kalimantan, Indonesia
| | - Roberto A Delgado
- Departments of Anthropology and Biological Sciences, Program in Integrative and Evolutionary Biology (IEB), University of Southern California, Los Angeles, USA
| | - Andi Erman
- GFA/KWF, Kapuas Hulu Program, West Kalimantan, Indonesia
| | - Benoit Goossens
- Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom.,Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma Muis, 88100, Kota Kinabalu, Sabah, Malaysia
| | | | - Max Houghton
- Research Centre in Evolutionary Anthropology, and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Simon J Husson
- Orangutan Tropical Peatland Project, The Center for International Cooperation in the Sustainable Management of Tropical Peatlands (CIMTROP), University of Palangka Raya, Central Kalimantan, Indonesia
| | - Hjalmar S Kühl
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany
| | - Isabelle Lackman
- Kinabatangan Orang-utan Conservation Programme, Sandakan, Sabah, Malaysia
| | | | | | | | - Andrew J Marshall
- Department of Anthropology, Program in the Environment, and School for Natural Resources and Environment, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ari Meididit
- Biology Faculty, Universitas Nasional (UNAS), Jakarta, Indonesia.,World Wide Fund for Nature-Indonesia (WWF-Indonesia), Central Kalimantan Program, Indonesia
| | - Kerrie Mengersen
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD, Australia
| | - Musnanda
- The Nature Conservancy (TNC) Indonesia, Jakarta, Indonesia
| | - Nardiyono
- Austindo Nusantara Jaya Tbk, Jakarta 12910, Indonesia
| | - Anton Nurcahyo
- College of Arts and Social Sciences, The Australian National University, Canberra, ACT, Australia
| | - Kisar Odom
- Borneo Orangutan Survival Foundation (BOSF), Nyaru Menteng, Central Kalimantan, Indonesia
| | - Adventus Panda
- World Wide Fund for Nature-Indonesia (WWF-Indonesia), Central Kalimantan Program, Indonesia
| | - Didik Prasetyo
- The Indonesian Association of Primatologists (PERHAPPI), Bogor, Indonesia
| | - Purnomo
- The Nature Conservancy (TNC) Indonesia, Jakarta, Indonesia
| | | | - Slamet Raharjo
- Faculty of Veterinary Medicine, Gadjah Mada University (UGM), Yogyakarta, 55281, Indonesia
| | - Dessy Ratnasari
- Lembaga Living Landscapes Indonesia (LLI), Pontianak, West Kalimantan, Indonesia
| | - Anne E Russon
- Psychology Department, Glendon College of York University, 2275 Bayview Avenue, Toronto, M4N 3M6, ON, Canada
| | - Adi H Santana
- Biology Faculty, Universitas Nasional (UNAS), Jakarta, Indonesia
| | - Eddy Santoso
- Yayasan Orangutan Indonesia (YAYORIN), Pangkalan Bun, Central Kalimantan, Indonesia
| | - Iman Sapari
- Yayasan Orangutan Indonesia (YAYORIN), Pangkalan Bun, Central Kalimantan, Indonesia
| | - Jamartin Sihite
- Restorasi Habitat Orangutan Indonesia (RHOI), Bogor, West Java, Indonesia
| | - Ahmat Suyoko
- Borneo Orangutan Survival Foundation (BOSF), Nyaru Menteng, Central Kalimantan, Indonesia
| | - Albertus Tjiu
- World Wide Fund for Nature-Indonesia (WWF-Indonesia), West Kalimantan Program, Indonesia
| | - Sri Suci Utami-Atmoko
- Biology Faculty, Universitas Nasional (UNAS), Jakarta, Indonesia.,Forum Orangutan Indonesia (FORINA), Bogor, West Java, Indonesia
| | - Carel P van Schaik
- Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland
| | - Maria Voigt
- Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany
| | - Jessie Wells
- The University of Queensland, School of Biological Sciences, Brisbane, QLD, Australia.,ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia
| | - Serge A Wich
- Research Centre in Evolutionary Anthropology, and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom.,Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Sciencepark 904, Amsterdam, 1098, Netherlands
| | - Erik P Willems
- Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland
| | - Erik Meijaard
- ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, QLD, Australia.,Borneo Futures, Bandar Seri Begawan, Brunei Darussalam
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The Implications of Primate Behavioral Flexibility for Sustainable Human–Primate Coexistence in Anthropogenic Habitats. INT J PRIMATOL 2017. [DOI: 10.1007/s10764-017-9962-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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29
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Spehar SN, Rayadin Y. Habitat use of Bornean Orangutans (Pongo pygmaeus morio) in an Industrial Forestry Plantation in East Kalimantan, Indonesia. INT J PRIMATOL 2017. [DOI: 10.1007/s10764-017-9959-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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McCarthy MS, Lester JD, Stanford CB. Chimpanzees ( Pan troglodytes) Flexibly Use Introduced Species for Nesting and Bark Feeding in a Human-Dominated Habitat. INT J PRIMATOL 2016; 38:321-337. [PMID: 28546652 PMCID: PMC5422490 DOI: 10.1007/s10764-016-9916-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/08/2016] [Indexed: 11/28/2022]
Abstract
As habitat loss and fragmentation place growing pressure on endangered nonhuman primate populations, researchers find increasing evidence for novel responses in behavior. In western Uganda between the Budongo and Bugoma Forests, chimpanzees (Pan troglodytes schweinfurthii) inhabit a mosaic landscape comprising forest fragments, human settlements, and agricultural land. We recorded nests and feeding evidence of unhabituated chimpanzees in this region over a 12-mo period. We found extensive evidence of nesting in introduced tree species, including eucalyptus (Eucalyptus grandis), guava (Psidium guajava), cocoa (Theobroma cacao), and Caribbean pine (Pinus caribaea). In addition, we found instances of ground nesting, nest reuse, and composite nests constructed from branches of multiple trees. This evidence may indicate a lack of suitable nesting trees or attempts by chimpanzees to nest in areas of riparian forest that allow them to avoid human detection. We also found new evidence for eucalyptus bark feeding by chimpanzees. Such evidence suggests chimpanzees respond flexibly to mitigate anthropogenic pressures in human-dominated landscapes. The limits of such flexibility remain unknown. Further research is needed to examine systematically the factors influencing the use of such resources and to understand better the extent to which chimpanzees can persist while relying on them.
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Affiliation(s)
- Maureen S. McCarthy
- Department of Biological Sciences, Dana and Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90089-0371 USA
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
| | - Jack D. Lester
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
| | - Craig B. Stanford
- Department of Biological Sciences, Dana and Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90089-0371 USA
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31
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Bessa J, Sousa C, Hockings KJ. Feeding ecology of chimpanzees (Pan troglodytes verus) inhabiting a forest-mangrove-savanna-agricultural matrix at Caiquene-Cadique, Cantanhez National Park, Guinea-Bissau. Am J Primatol 2015; 77:651-65. [PMID: 25800459 DOI: 10.1002/ajp.22388] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/18/2015] [Accepted: 01/28/2015] [Indexed: 11/12/2022]
Abstract
With rising conversion of "natural" habitat to other land use such as agriculture, nonhuman primates are increasingly exploiting areas influenced by people and their activities. Despite the conservation importance of understanding the ways in which primates modify their behavior to human pressures, data are lacking, even for well-studied species. Using systematically collected data (fecal samples, feeding traces, and direct observations), we examined the diet and feeding strategies of an unhabituated chimpanzee community (Pan troglodytes verus) at Caiquene-Cadique in Guinea-Bissau that inhabit a forest-savanna-mangrove-agricultural mosaic. The chimpanzees experienced marked seasonal variations in the availability of plant foods, but maintained a high proportion of ripe fruit in the diet across months. Certain wild species were identified as important to this community including oil-palm (Elaeis guineensis) fruit and flower. Honey was frequently consumed but no other insects or vertebrates were confirmed to be eaten by this community. However, we provide indirect evidence of possible smashing and consumption of giant African snails (Achatina sp.) by chimpanzees at this site. Caiquene-Cadique chimpanzees were confirmed to feed on nine different agricultural crops, which represented 13.6% of all plant species consumed. Consumption of fruit and nonfruit crops was regular, but did not increase during periods of wild fruit scarcity. Crop consumption is an increasing and potentially problematic behavior, which can impact local people's tolerance toward wildlife. To maximize the potential success of any human-wildlife coexistence strategy (e.g., to reduce primate crop feeding), knowledge of primate behavior, as well as multifaceted social dimensions of interactions, is critical.
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Affiliation(s)
- Joana Bessa
- Centre for Research in Anthropology, Lisbon, Portugal
| | - Cláudia Sousa
- Centre for Research in Anthropology, Lisbon, Portugal.,Department of Anthropology, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Kimberley J Hockings
- Centre for Research in Anthropology, Lisbon, Portugal.,Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, United Kingdom
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32
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Hockings KJ, McLennan MR, Carvalho S, Ancrenaz M, Bobe R, Byrne RW, Dunbar RIM, Matsuzawa T, McGrew WC, Williamson EA, Wilson ML, Wood B, Wrangham RW, Hill CM. Apes in the Anthropocene: flexibility and survival. Trends Ecol Evol 2015; 30:215-22. [PMID: 25766059 DOI: 10.1016/j.tree.2015.02.002] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 11/26/2022]
Abstract
We are in a new epoch, the Anthropocene, and research into our closest living relatives, the great apes, must keep pace with the rate that our species is driving change. While a goal of many studies is to understand how great apes behave in natural contexts, the impact of human activities must increasingly be taken into account. This is both a challenge and an opportunity, which can importantly inform research in three diverse fields: cognition, human evolution, and conservation. No long-term great ape research site is wholly unaffected by human influence, but research at those that are especially affected by human activity is particularly important for ensuring that our great ape kin survive the Anthropocene.
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Affiliation(s)
- Kimberley J Hockings
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, UK; Centre for Research in Anthropology (CRIA-FCSH/UNL), Lisbon, Portugal.
| | - Matthew R McLennan
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, UK
| | - Susana Carvalho
- Center for the Advanced Study of Hominid Paleobiology, George Washington University, Washington DC, WA 20052, USA; Interdisciplinary Center for Archaeology and Evolution of Human Behavior, Universidade do Algarve, Faro, Portugal
| | - Marc Ancrenaz
- HUTAN/Kinabatangan Orangutan Conservation Programme, Sabah, Malaysia
| | - René Bobe
- Center for the Advanced Study of Hominid Paleobiology, George Washington University, Washington DC, WA 20052, USA
| | - Richard W Byrne
- School of Psychology & Neuroscience, University of St Andrews, St Andrews, UK
| | - Robin I M Dunbar
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Tetsuro Matsuzawa
- Primate Research Institute, Kyoto University, Inuyama, Japan; Japan Monkey Centre, Inuyama, Japan
| | - William C McGrew
- Department of Archaeology and Anthropology, University of Cambridge, Cambridge, UK
| | | | - Michael L Wilson
- Department of Anthropology and Department of Ecology, Evolution and Behavior, University of Minnesota, Minneapolis, MN 55455, USA
| | - Bernard Wood
- Center for the Advanced Study of Hominid Paleobiology, George Washington University, Washington DC, WA 20052, USA
| | - Richard W Wrangham
- Department of Human Evolutionary Biology, Harvard University, Boston, MA 02138, USA
| | - Catherine M Hill
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, UK
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33
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Abram NK, Meijaard E, Wells JA, Ancrenaz M, Pellier AS, Runting RK, Gaveau D, Wich S, Nardiyono, Tjiu A, Nurcahyo A, Mengersen K. Mapping perceptions of species' threats and population trends to inform conservation efforts: the Bornean orangutan case study. DIVERS DISTRIB 2015. [DOI: 10.1111/ddi.12286] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Nicola K. Abram
- Living Landscape Alliance; Aldermaston Reading RG7 8NN UK
- ARC Centre of Excellence for Environmental Decisions; University of Queensland; Brisbane Qld 4072 Australia
- HUTAN/Kinabatangan Orang-utan Conservation Programme; Kota Kinabalu Sabah Malaysia
- Durrell Institute for Conservation and Ecology; School of Anthropology and Conservation; University of Kent; Canterbury Kent UK
- Borneo Futures; People and Nature Consulting International; Ciputat Jakarta 15412 Indonesia
| | - Erik Meijaard
- Living Landscape Alliance; Aldermaston Reading RG7 8NN UK
- Borneo Futures; People and Nature Consulting International; Ciputat Jakarta 15412 Indonesia
- Center for International Forestry Research; PO Box 0113 BOCBD Bogor 16000 Indonesia
- School of Archaeology & Anthropology; Australian National University; Canberra ACT 0200 Australia
| | - Jessie A. Wells
- ARC Centre of Excellence for Environmental Decisions; University of Queensland; Brisbane Qld 4072 Australia
| | - Marc Ancrenaz
- HUTAN/Kinabatangan Orang-utan Conservation Programme; Kota Kinabalu Sabah Malaysia
- Borneo Futures; People and Nature Consulting International; Ciputat Jakarta 15412 Indonesia
- Sabah Wildlife Department; Wisma Muis; Kota Kinabalu Sabah Malaysia
| | - Anne-Sophie Pellier
- Durrell Institute for Conservation and Ecology; School of Anthropology and Conservation; University of Kent; Canterbury Kent UK
- Borneo Futures; People and Nature Consulting International; Ciputat Jakarta 15412 Indonesia
- Center for International Forestry Research; PO Box 0113 BOCBD Bogor 16000 Indonesia
| | - Rebecca K. Runting
- ARC Centre of Excellence for Environmental Decisions; University of Queensland; Brisbane Qld 4072 Australia
| | - David Gaveau
- Center for International Forestry Research; PO Box 0113 BOCBD Bogor 16000 Indonesia
| | - Serge Wich
- Research Centre in Evolutionary Anthropology and Palaeoecology; School of Natural Sciences and Psychology; Liverpool John Moores University; Liverpool UK
- Institute for Biodiversity and Ecosystem Dynamics; University of Amsterdam; 1098 XH Amsterdam The Netherlands
| | - Nardiyono
- Austindo Nusantara Jaya Agri; Jakarta Indonesia
| | | | - Anton Nurcahyo
- School of Archaeology & Anthropology; Australian National University; Canberra ACT 0200 Australia
| | - Kerrie Mengersen
- School of Mathematical Sciences; Queensland University of Technology; Brisbane Qld Australia
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Gregory SD, Ancrenaz M, Brook BW, Goossens B, Alfred R, Ambu LN, Fordham DA. Forecasts of habitat suitability improve habitat corridor efficacy in rapidly changing environments. DIVERS DISTRIB 2014. [DOI: 10.1111/ddi.12208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Stephen D. Gregory
- Environment Institute and School of Earth and Environmental Sciences; University of Adelaide; Adelaide SA 5005 Australia
- Salmon and Trout Research Centre; Game and Wildlife Conservation Trust; East Stoke Dorset BH20 6BB UK
| | - Marc Ancrenaz
- Hutan; Kinabatangan Orang-utan Conservation Program; Sabah Malaysia
- North England Zoological Society; Chester Zoo; Chester UK
- Sabah Wildlife Department; Wisma Muis; 88100 Kota Kinabalu Sabah Malaysia
| | - Barry W. Brook
- Environment Institute and School of Earth and Environmental Sciences; University of Adelaide; Adelaide SA 5005 Australia
| | - Benoit Goossens
- Sabah Wildlife Department; Wisma Muis; 88100 Kota Kinabalu Sabah Malaysia
- Organisms and Environment Division; School of Biosciences; Cardiff University; Cardiff CF10 3AX UK
- Danau Girang Field Centre c/o Sabah Wildlife Department; Wisma Muis; 88100 Kota Kinabalu Sabah Malaysia
| | - Raymond Alfred
- Borneo Conservation Trust; Wisma Muis; 88100 Kota Kinabalu Sabah Malaysia
| | - Laurentius N. Ambu
- Sabah Wildlife Department; Wisma Muis; 88100 Kota Kinabalu Sabah Malaysia
| | - Damien A. Fordham
- Environment Institute and School of Earth and Environmental Sciences; University of Adelaide; Adelaide SA 5005 Australia
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