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Published in: Biodiversity and Conservation 14/2019

12-10-2019 | Letter to the Editor

Spider monkeys, the misunderstood assumptions of distance sampling and the pitfalls of poor field design

Authors: Antonio Christian de Andrade, Tiago A. Marques, Stephen T. Buckland

Published in: Biodiversity and Conservation | Issue 14/2019

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Excerpt

Information on wildlife population size is fundamental for effective conservation actions. The most popular method used to obtain information on population size is distance sampling, and the most commonly used form of distance sampling is line transect sampling (Buckland et al. 2015; Spaan et al. 2019). To be useful, population size estimates need to be unbiased and precise, allowing detection of changes that are relevant to conservation managers. We agree with Spaan et al. (2019) that there is a need for method standardization to compare estimates across time and space, and thus aid conservation decisions. …

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Literature
go back to reference Buckland ST, Plumptre AJ, Thomas L, Rexstad EA (2010a) Line transect sampling of primates: can animal-to-observer distance methods work? Int J Primatol 31:485–499CrossRef Buckland ST, Plumptre AJ, Thomas L, Rexstad EA (2010a) Line transect sampling of primates: can animal-to-observer distance methods work? Int J Primatol 31:485–499CrossRef
go back to reference Buckland ST, Plumptre AJ, Thomas L, Rexstad EA (2010b) Design and analysis of line transect surveys for primates. Int J Primatol 31:833–847CrossRef Buckland ST, Plumptre AJ, Thomas L, Rexstad EA (2010b) Design and analysis of line transect surveys for primates. Int J Primatol 31:833–847CrossRef
go back to reference Buckland ST, Rexstad EA, Marques TA, Oedekoven CS (2015) Distance sampling: methods and applications. Springer, New YorkCrossRef Buckland ST, Rexstad EA, Marques TA, Oedekoven CS (2015) Distance sampling: methods and applications. Springer, New YorkCrossRef
go back to reference Gates CE (1969) Simulation study of estimators for the line transect sampling method. Biometrics 25:317–328CrossRef Gates CE (1969) Simulation study of estimators for the line transect sampling method. Biometrics 25:317–328CrossRef
go back to reference Spaan D, Ramos-Fernandez G, Schaffner CM, Smith-Aguilar SE, Pinacho-Guendulain B, Aureli F (2019) Standardizing methods to estimate population density: an example based on habituated and unhabituated spider monkeys. Biodiv Conserv 28:847–862CrossRef Spaan D, Ramos-Fernandez G, Schaffner CM, Smith-Aguilar SE, Pinacho-Guendulain B, Aureli F (2019) Standardizing methods to estimate population density: an example based on habituated and unhabituated spider monkeys. Biodiv Conserv 28:847–862CrossRef
Metadata
Title
Spider monkeys, the misunderstood assumptions of distance sampling and the pitfalls of poor field design
Authors
Antonio Christian de Andrade
Tiago A. Marques
Stephen T. Buckland
Publication date
12-10-2019
Publisher
Springer Netherlands
Published in
Biodiversity and Conservation / Issue 14/2019
Print ISSN: 0960-3115
Electronic ISSN: 1572-9710
DOI
https://doi.org/10.1007/s10531-019-01872-y

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