Patterns and determinants of mammal species occurrence in India

Journal of Applied Ecology - Tập 46 Số 6 - Trang 1189-1200 - 2009
Krithi K. Karanth1,2, James D. Nichols3, James E. Hines3, K. Ullas Karanth4, Norman L. Christensen2
1Department of Ecology, Evolution and Environmental Biology, Columbia University, NY 10027, USA
2Nicholas School of Environment, PO Box 90328, Duke University, Durham NC 27708, USA
3U.S. Geological Survey Biological Resources Division, Patuxent Wildlife Research Center, 12100 Beech Forest Road, STE 4037, Laurel, MD 20708 4019, USA
4Wildlife Conservation Society India Program, 403 Seebo Apts, 26‐2 Aga Abbas Ali Road, Bangalore 560 042, India

Tóm tắt

Summary 1. Many Indian mammals face range contraction and extinction, but assessments of their population status are hindered by the lack of reliable distribution data and range maps. 2. We estimated the current geographical ranges of 20 species of large mammals by applying occupancy models to data from country‐wide expert. We modelled species in relation to ecological and social covariates (protected areas, landscape characteristics and human influences) based on a priori hypotheses about plausible determinants of mammalian distribution patterns. 3. We demonstrated that failure to incorporate detection probability in distribution survey methods underestimated habitat occupancy for all species. 4. Protected areas were important for the distribution of 16 species. However, for many species much of their current range remains unprotected. The availability of evergreen forests was important for the occurrence of 14 species, temperate forests for six species, deciduous forests for 15 species and higher altitude habitats for two species. Low human population density was critical for the occurrence of five species, while culturally based tolerance was important for the occurrence of nine other species. 5. Rhino Rhinoceros unicornis, gaur Bos gaurus and elephant Elephas maximus showed the most restricted ranges among herbivores, and sun bear Helarctos malayanus, brown bear Ursus arctos and tiger Panthera tigris were most restricted among carnivores. While cultural tolerance has helped the survival of some mammals, legal protection has been critically associated with occurrence of most species. 6. Synthesis and applications. Extent of range is an important determinant of species conservation status. Understanding the relationship of species occurrence with ecological and socio‐cultural covariates is important for identification and management of key conservation areas. The combination of occupancy models with field data from country‐wide experts enables reliable estimation of species range and habitat associations for conservation at regional scales.

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Tài liệu tham khảo

10.1046/j.1365-2699.2003.00867.x

10.2307/2404755

10.1080/01431160412331291297

10.5962/bhl.title.102849

10.1046/j.1523-1739.2003.01592.x

10.1098/rspb.2001.1815

Budhendra B., 2002, LandScan: locating people is what matters, Geoinformatics, 5, 34

Burnham K.P., 2002, Model Selection and Multimodal Inference: A Practical Information × Theoretic Approach

10.1177/0049124104268644

Cardillo M., 2004, Human population density and extinction risk in the world’s carnivores, Public Library of Science Biology, 2, 909

10.1126/science.1116030

10.1126/science.1069349

10.1126/science.1114015

CGIAR‐CSI(2004)SRTM data V1 International Centre for Tropical Agriculture (CIAT).http://srtm.csi.cgiar.org(accessed June 2006).

10.1046/j.1365-2699.2000.00382.x

10.1038/47487

10.1086/283438

10.1016/j.biocon.2006.05.023

Datta A., 2007, Making Conservation Work, 165

Dobson J.E., 2000, LandScan: a global population database for estimating populations at risk, Photogrammetric Engineering and Remote Sensing, 66, 8410

Forest Survey of India, 2000, State of the Forest Report

10.1016/S0006-3207(03)00190-3

Hines J.E.(2006).Program PRESENCE (Version 2).http://www.mbr‐pwrc.usgs.gov/software/doc/presence/presence.html.

10.1016/j.rse.2006.04.010

10.1073/pnas.0306210101

10.1641/0006-3568(2004)054[0123:RCONAC]2.0.CO;2

10.1890/0012-9658(2002)083[2248:ESORWD]2.0.CO;2

10.1890/02-3090

MacKenzie D.I., 2006, Occupancy Modeling and Estimation

Madhusudan M.D., 2005, Wildlife Conservation, Research and Management, 60

Madhusudan M.D., 2003, Battles Over Nature: Science and Politics of Conservation, 31

Menon V., 2003, A Field Guide to Indian Mammals

10.1016/j.biocon.2005.01.045

10.1046/j.1523-1739.1995.09030512.x

10.1046/j.1523-1739.1996.10061549.x

10.1046/j.1523-1739.2002.00288.x

10.1016/j.ecolmodel.2005.03.026

Prater S.H., 1948, The Book of Indian Animals

10.2307/1930989

Rangarajan M., 2001, India’s Wildlife History

10.1111/j.2006.0906-7590.04272.x

10.1016/j.ecolmodel.2006.02.045

10.1111/j.1541-0420.2005.00439.x

Royle J.A., 2008, Hierarchical Modeling and Inference in Ecology: The Analysis of Data From Populations

10.1890/0012-9658(2006)87[835:GSOMAF]2.0.CO;2

10.1641/0006-3568(2002)052[0891:THFATL]2.0.CO;2

10.2193/0022-541X(2005)069[0483:MCMCEO]2.0.CO;2

10.1111/j.1523-1739.1988.tb00207.x

10.1111/j.1523-1739.2003.00059.x

10.1890/02-5078

Wells S., 2002, The Journey of Man: A Genetic Odyssey

10.1126/science.280.5372.2126

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Thông tin xuất bản

Journal of Applied Ecology

Tập 46 Số 6

1189-1200

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