Demystifying the Sundarban tiger: novel application of conventional population estimation methods in a unique ecosystem
详细信息 查看全文
- 作者：Manjari Roy ; Qamar Qureshi ; Dipanjan Naha ; Kalyanasundaram Sankar…
- 关键词：Baited traps ; Capture ; mark ; recapture ; Carnivore carrying capacity ; Mangrove ; Prey density ; Spatially explicit tiger density
- 刊名：Population Ecology
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：58
- 期：1
- 页码：81-89
- 全文大小：2,025 KB
- 参考文献：Akaike H (1974) A new look at the statistical model identification. IEEE Trans Autom Control 19:716–723CrossRef
Barlow AC (2009) The Sundarbans tiger adaptation, population status, and conflict management. PhD Thesis, University of Minnesota, Minneapolis
Barlow AC, Ahmad IU, Smith JL (2013) Profiling tigers (Panthera tigris) to formulate management responses to human-killing in the Bangladesh Sundarbans. Wildlife Biology in Practice 9:30–39CrossRef
Blair HW (1990) Local government and rural development in the Bengal Sundarbans: an inquiry in managing common property resources. Agric Hum Values 7:40–51CrossRef
Blasco F, Saenger P, Janodet E (1996) Mangroves as indicators of coastal change. Catena 27:167–178CrossRef
Borchers DL, Efford M (2008) Spatially explicit maximum likelihood methods for capture–recapture studies. Biometrics 64:377–385PubMed CrossRef
Burnham KP, Anderson DR (2002) Model selection and multimodel inference: a practical information-theoretic approach. Springer-Verlag New York Inc, New York
Chakrabarti K (1992) Man-eating tigers. Darbari Prokashan, Kolkata
Chaudhuri AB, Choudhury A (1994) Mangroves of the Sundarbans. Volume 1: India. International Union for Conservation of Nature and Natural Resources (IUCN), Gland
Choudhury S (1970) Let us count our tigers. Cheetal 14:41–51
Choudhury S (1972) Tiger census in India. Cheetal 15:67–84
De R (1990) The Sundarbans. Oxford University Press, Kolkata
Dinerstein E, Wikramanayake E, Robinson J, Karanth KU, Rabinowitz A, Olson D, Mathew T, Hedao P, Connor M, Hemley G, Bolze D (1997) A framework for identifying high priority areas and actions for the conservation of tigers in the wild. World Wildlife Fund-US, Washington DC
du Preez BD, Loveridge AJ, Macdonald DW (2014) To bait or not to bait: a comparison of camera-trapping methods for estimating leopard (Panthera pardus) density. Biol Conserv 176:153–161CrossRef
Efford M (2004) Density estimation in live-trapping studies. Oikos 106:598–610CrossRef
Efford MG (2015) secr: Spatially explicit capture-recapture models. R package version 2.9.3. http://CRAN.R-project.org/package=secr . Accessed 28 June 2015
ESRI (2011) ArcGIS Desktop: Release 10. Environmental Systems Resource Institute, Redlands
Gerber BD, Karpanty SM, Kelly MJ (2012) Evaluating the potential biases in carnivore capture–recapture studies associated with the use of lure and varying density estimation techniques using photographic-sampling data of the Malagasy civet. Popul Ecol 54:43–54CrossRef
Hayward MW, O’Brien J, Kerley GI (2007) Carrying capacity of large African predators: predictions and tests. Biol Conserv 139:219–229CrossRef
Islam MS, Wahab MA (2005) A review on the present status and management of mangrove wetland habitat resources in Bangladesh with emphasis on mangrove fisheries and aquaculture. In: Segers H, Martens K (eds) Aquatic biodiversity II. Springer, Netherlands, pp 165–190CrossRef
Jhala YV, Qureshi Q, Gopal R, Sinha PR (eds) (2011) Status of tigers, co-predators and prey in India, 2010. National tiger conservation authority and wildlife institute of india. Dehradun. TR 2011(003):1–302. http://www.butchlama.com/Wild_India/Tiger_Census_files/staus_tiger_2010%20WII.pdf
Kanjilal B, Mazumdar PG, Mukherjee M, Mondal S, Barman D, Singh S, Mandal A (2010) Health care in the Sundarbans (India): challenges and plan for a better future. Institute of Health Management Research, Jaipur and Kolkata
Karanth KU, Nichols JD (1998) Estimation of tiger densities in India using photographic captures and recaptures. Ecology 79:2852–2862CrossRef
Karanth KU, Nichols JD (2000) Ecological status and conservation of tigers in India. Final Technical Report (February 1995 to January 2000). Centre for Wildlife Studies, Bangalore
Karanth KU, Nichols JD, Seidenstricker J, Dinerstein E, Smith JLD, McDougal C, Johnsingh A, Chundawat RS, Thapar V (2003) Science deficiency in conservation practice: the monitoring of tiger populations in India. Anim Conserv 6:141–146CrossRef
Khan MH (2004) Ecology and conservation of the Bengal tiger in the Sundarbans mangrove forest of Bangladesh. PhD Thesis, University of Cambridge, Cambridge
Kvale EP (2006) The origin of neap–spring tidal cycles. Mar Geol 235:5–18CrossRef
Lebreton JD, Burnham KP, Clobert J, Anderson DR (1992) Modeling survival and testing biological hypotheses using marked animals: a unified approach with case studies. Ecol Monogr 62:67–118CrossRef
Loucks C, Barber-Meyer S, Hossain MAA, Barlow A, Chowdhury RM (2010) Sea level rise and tigers: predicted impacts to Bangladesh’s Sundarbans mangroves. Clim Change 98:291–298CrossRef
Mukherjee S (2005) Ecological investigations on mangroves of the Sundarbans Tiger Reserve in West Bengal (India) with special reference to effective conservation through management practice. PhD Thesis, University of Kalyani, Kalyani
Neumann-Denzau G, Denzau H (2010) Examining certain aspects of human-tiger conflict in the Sundarbans forest, Bangladesh. Tigerpapers 37:1–11
Otis DL, Burnham KP, White GC, Anderson DR (1978) Statistical inference from capture data on closed animal populations. Wildl Monogr 62:3–135
Qureshi Q, Gopal R, Shirish K, Basu S, Mitra A, Jhala YV (2006) Evaluating tiger habitat at the Tehsil level. Project tiger directorate and Wildlife Institute of India, Dehra Dun
R Core Team (2015) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. http://www.R-project.org/ Accessed 28 June 2015
Rahman LM (2000) The Sundarbans: a unique wilderness of the world. Proceedings - Rocky Mountain Research Station, USDA Forest Service 2000 No. RMRS-P-15 2:143-148
Sanderson E, Forrest J, Loucks C, Ginsberg J, Dinerstein E, Seidensticker J, Leimgruber P, Songer M, Heydlauff A, O’Brien T, Bryja G, Klenzendorf S, Wikramayake E (2006) Setting priorities for the conservation and recovery of wild tigers: 2005–2015. The Technical Assessment, WCS, New York-Washington, DC
Seber GAF (1973) The estimation of animal abundance and related parameters. Griffin, London
Singh SK, Mishra S, Aspi J, Kvist L, Nigam P, Pandey P, Sharma R, Goyal SP (2015) Tigers of Sundarbans in India: is the population a separate conservation unit? PLoS One. doi:10.1371/journal.pone.0118846
Thomas L, Laake JL, Rexstad E, Strindberg S, Marques FFC, Buckland ST, Borchers DL, Anderson DR, Burnham KP, Burt ML, Hedley SL, Pollard JH, Bishop JRB, Marques TA (2009) Distance 6.0. Release 2. Research Unit for Wildlife Population Assessment, University of St. Andrews, Fife
Thomas L, Buckland ST, Rexstad EA, Laake JL, Strindberg S, Hedley SL, Bishop JR, Marques TA, Burnham KP (2010) Distance software: design and analysis of distance sampling surveys for estimating population size. J Appl Ecol 47:5–14PubMed PubMedCentral CrossRef
White GC, Burnham KP (1999) Program MARK: survival estimation from populations of marked animals. Bird Study 46:120–138CrossRef
Williams BK, Nichols JD, Conroy MJ (2002) Analysis and management of animal populations. Academic Press, San Diego
Yoccoz NG, Nichols JD, Boulinier T (2001) Monitoring of biological diversity in space and time. Trends Ecol Evol 16:446–453CrossRef - 作者单位：Manjari Roy (1)
Qamar Qureshi (1)
Dipanjan Naha (1)
Kalyanasundaram Sankar (1)
Rajesh Gopal (2) (3)
Yadvendradev Vikramsinh Jhala (1)
1. Wildlife Institute of India, Chandrabani, Dehradun, 248001, India
2. National Tiger Conservation Authority, Ministry of Environment, Forests and Climate Change, New Delhi, India
3. Global Tiger Forum, Jorbaug Road, New Delhi, India - 刊物类别：Biomedical and Life Sciences
- 刊物主题：Life Sciences
Ecology
Zoology
Plant Sciences
Evolutionary Biology
Behavioural Sciences
Forestry - 出版者：Springer Japan
- ISSN：1438-390X
文摘
Conserving large populations with unique adaptations is essential for minimizing extinction risks. Sundarban mangroves (>10,000 km2) are the only mangrove inhabited by tigers. Baseline information about this tiger population is lacking due to its man-eating reputation and logistic difficulties of sampling. Herein, we adapt photographic capture-mark-recapture (CMR) and distance sampling to estimate tiger and prey densities. We placed baited camera stations in a typical mangrove in 2010 and 2012. We used telemetry based tiger home-range radius (5.73 km, SE 0.72 km) to estimate effective trapping area (ETA). An effort of 407 and 1073 trap nights were exerted to photocapture 10 and 22 unique tigers in 2010 and 2012. We accounted for use of bait by modelling behaviour and heterogeneity effects in program MARK and secr package in program R. Using traditional CMR, tiger number was estimated at 11 (SE 2) and density at 4.07 (SE range 3.09–5.17) in 2010 while in 2012, tiger number was 24 (SE 3) and density 4.63 (SE range 3.92–5.40) tigers/100 km2. With likelihood based spatially explicit CMR, tiger densities were estimated at 4.08 (SE 1.51) in 2010 and 5.81 (SE 1.24) tigers/100 km2 in 2012. Using distance sampling along water channels, we estimated chital density at 5.24/km2, SE 1.23 which could potentially support 4.68 tigers/100 km2 [95 % CI (3.92, 5.57)]. Our estimates suggest that Sundarban tiger population is one of the largest in the world and therefore merits high conservation status. Keywords Baited traps Capture-mark-recapture Carnivore carrying capacity Mangrove Prey density Spatially explicit tiger density