Shifting up a gear with iDNA: From mammal detection events to standardised surveys

Journal of Applied Ecology, Journal Year: 2019, Volume and Issue: 56(7), P. 1637 - 1648

Published: April 29, 2019

Abstract Invertebrate‐derived DNA ( iDNA ), in combination with high throughput sequencing, has been proposed as a cost‐efficient and powerful tool to survey vertebrate species. Previous studies, however, have only provided evidence that vertebrates can be detected using , but not taken the next step of placing these detection events within statistical framework allows for robust biodiversity assessments. Here, we compare concurrent camera‐trap surveys. Leeches were repeatedly collected close vicinity 64 stations Sabah, Malaysian Borneo. We analyse ‐derived mammalian modern occupancy model accounts imperfect results those from models parameterised camera‐trap‐derived events. also combine leech‐ data single model. found consistent estimates probabilities produced by our leech datasets. This indicates metabarcoding method provides reasonable may suitable studying monitoring mammal species tropical rainforests. However, show more extensive collection leeches would needed assess robustness similar camera traps. As certain taxa leeches, see great potential complementing studies approach, long follows standardised sampling scheme. Synthesis applications . describe an approach records mammals derived samples leech‐specific factors influencing probability. further combined trap data, which lead increased confidence estimates. Our is restricted processing samples, used analysis other invertebrate environmental data. study first shift application opportunistic ad‐hoc collections systematic surveys required long‐term management wildlife populations.

Language: Английский

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Mammalian species abundance across a gradient of tropical land-use intensity: A hierarchical multi-species modelling approach

Biological Conservation, Journal Year: 2017, Volume and Issue: 212, P. 162 - 171

Published: June 20, 2017

Language: Английский

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Population mapping of gibbons in Kalimantan, Indonesia: correlates of gibbon density and vegetation across the species’ range

Endangered Species Research, Journal Year: 2016, Volume and Issue: 30, P. 133 - 143

Published: April 4, 2016

ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 30:133-143 (2016) - DOI: https://doi.org/10.3354/esr00734 Population mapping of gibbons in Kalimantan, Indonesia: correlates gibbon density and vegetation across species’ range Susan M. Cheyne1,2,3,4,5,*, Lauren J. Gilhooly4, Marie C. Hamard1, Andrea Höing1,2, Peter R. Houlihan2,6,10, Kursani2, Brent Loken7, Abigail Phillips1, Yaya Rayadin8, Bernat Ripoll Capilla1, Dominic Rowland2, Wiwit Juwita Sastramidjaja1, Stephanie Spehar9, Claire H. Thompson1, Michal Zrust2 1Orangutan Tropical Peatland Project, Jalan Semeru No. 91, Bukit Hindu, Palangka Raya, Indonesia 2BRINCC C/O Flat 2, 11 The Avenue, Hitchin, Herts SG4 9RJ, UK 3Wildlife Conservation Unit (WildCRU), Department Zoology, Oxford University, Recanati-Kaplan Centre, Tubney House, Abingdon Road, OX13 5QL, 4Faculty Humanities, Social Sciences Law, Brookes OX3 0BP, 5School Anthropology Conservation, University Kent, Canterbury, Kent CT2 7NR, 6Department Behavioral Biology, Johns Hopkins Baltimore, MD 21218, USA 7Integrated Simon Fraser Vancouver, BC V6B 5K3, Canada 8Forestry Department, Mulawarman Kampus Gunung Jl. KH. Dewantara, Samarinda 75116, East 9Department Religious Studies & Anthropology, Wisconsin Oshkosh, WI 54901, 10Present address: Biology Florida Museum Natural History, Florida, Gainesville, FL 32611, *Corresponding author: [email protected] ABSTRACT: first comprehensive survey (Hylobates spp.) Indonesian Borneo was carried out over 3 years (1) determine whether densities species are correlated with characteristics, if so, same characteristics all forest types; (2) population areas identify threats areas. To achieve this, a total 8 blocks were surveyed, involving 53 independent locations repeat surveys blocks. Our data show that ubiquitous where there is forest; however, quality affects density, block size longevity populations, populations susceptible ‘compression effect’, i.e. occupy smaller fragments at unsustainably high densities. We effects disturbance (logging, fire, fragmentation) on distribution highlight issues for long-term conservation. discuss use minimum cross-sectional area, habitat variables presence top foods threshold below which cannot persist. conservation facing Bornean gibbons, including natural hybrids (H. muelleri × albibarbis). answers these research questions will help mitigate their habitat, as well key within outside protected area network. KEY WORDS: Hylobates · Gibbons Survey methods Triangulation Habitat Density Full text pdf format Supplementary material PreviousNextCite this article as: Cheyne SM, Gilhooly LJ, Hamard MC, Höing A others range. Endang Res 30:133-143. Export citation Tweet linkedIn Cited by Published Vol. 30. Online publication date: May 31, 2016 Print ISSN: 1863-5407; 1613-4796 Copyright © Inter-Research.

Language: Английский

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Species-Habitat Associations: Spatial data, predictive models, and ecological insights

Published: Dec. 1, 2020

Ecologists develop species-habitat association (SHA) models to understand where species occur, why they are there and else might be. This knowledge can be used designate protected areas, estimate anthropogenic impacts on living organisms assess risks from invasive or disease spill-over wildlife humans. Here, we describe the state of art in SHA models, looking beyond apparent correlations between positions their local environment. We highlight importance ecological mechanisms, synthesize diverse modelling frameworks motivate development new analytical methods. Above all, aim synthetic, bringing together several apparently disconnected pieces theory, taxonomy, spatiotemporal scales, mathematical statistical technique our field. The first edition this ebook reviews ecology associations, mechanistic interpretation existing empirical shared foundations that help us draw scientific insights field data. It will interest graduate students professionals for an introduction literature SHAs, practitioners seeking analyse data animal movements distributions quantitative ecologists contribute methods addressing limitations current incarnations models.

Language: Английский

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Relative effects of recreational activities on a temperate terrestrial wildlife assemblage

Conservation Science and Practice, Journal Year: 2020, Volume and Issue: 2(10)

Published: Sept. 5, 2020

Abstract Outdoor recreation is one of the fastest growing economic sectors in world and provides many benefits to people. Assessing possible negative impacts nevertheless important for sustainable management. Here, we used camera traps assess relative effects various recreational activities—as compared each other environmental conditions—on a terrestrial wildlife assemblage British Columbia, Canada. Across 13 species, only two associations between activities detections were observed at weekly scales: mountain biking on moose grizzly bears. However, finer‐scale analysis showed that all species avoided humans trails, with avoidance strongest motorized vehicles. Our results imply factors generally shaped broad‐scale patterns use, but highlight also have detectable impacts. These can be monitored using same camera‐trapping techniques are commonly monitor assemblages.

Language: Английский

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