Camera trap placement for evaluating species richness, abundance, and activity

Abstract Information from camera traps is used for inferences on species presence, richness, abundance, demography, and activity. Camera trap placement design is likely to influence these parameter estimates. Herein we simultaneously generate and compare estimates obtained from camera traps (a) plac...

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Autores principales:	Kamakshi S. Tanwar, Ayan Sadhu, Yadvendradev V. Jhala
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd6d9123cc114bb19a311be302001a75
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id	oai:doaj.org-article:dd6d9123cc114bb19a311be302001a75
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spelling	oai:doaj.org-article:dd6d9123cc114bb19a311be302001a752021-12-05T12:11:19ZCamera trap placement for evaluating species richness, abundance, and activity10.1038/s41598-021-02459-w2045-2322https://doaj.org/article/dd6d9123cc114bb19a311be302001a752021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02459-whttps://doaj.org/toc/2045-2322Abstract Information from camera traps is used for inferences on species presence, richness, abundance, demography, and activity. Camera trap placement design is likely to influence these parameter estimates. Herein we simultaneously generate and compare estimates obtained from camera traps (a) placed to optimize large carnivore captures and (b) random placement, to infer accuracy and biases for parameter estimates. Both setups recorded 25 species when same number of trail and random cameras (n = 31) were compared. However, species accumulation rate was faster with trail cameras. Relative abundance indices (RAI) from random cameras surrogated abundance estimated from capture-mark-recapture and distance sampling, while RAI were biased higher for carnivores from trail cameras. Group size of wild-ungulates obtained from both camera setups were comparable. Random cameras detected nocturnal activities of wild ungulates in contrast to mostly diurnal activities observed from trail cameras. Our results show that trail and random camera setup give similar estimates of species richness and group size, but differ for estimates of relative abundance and activity patterns. Therefore, inferences made from each of these camera trap designs on the above parameters need to be viewed within this context.Kamakshi S. TanwarAyan SadhuYadvendradev V. JhalaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kamakshi S. Tanwar Ayan Sadhu Yadvendradev V. Jhala Camera trap placement for evaluating species richness, abundance, and activity
description	Abstract Information from camera traps is used for inferences on species presence, richness, abundance, demography, and activity. Camera trap placement design is likely to influence these parameter estimates. Herein we simultaneously generate and compare estimates obtained from camera traps (a) placed to optimize large carnivore captures and (b) random placement, to infer accuracy and biases for parameter estimates. Both setups recorded 25 species when same number of trail and random cameras (n = 31) were compared. However, species accumulation rate was faster with trail cameras. Relative abundance indices (RAI) from random cameras surrogated abundance estimated from capture-mark-recapture and distance sampling, while RAI were biased higher for carnivores from trail cameras. Group size of wild-ungulates obtained from both camera setups were comparable. Random cameras detected nocturnal activities of wild ungulates in contrast to mostly diurnal activities observed from trail cameras. Our results show that trail and random camera setup give similar estimates of species richness and group size, but differ for estimates of relative abundance and activity patterns. Therefore, inferences made from each of these camera trap designs on the above parameters need to be viewed within this context.
format	article
author	Kamakshi S. Tanwar Ayan Sadhu Yadvendradev V. Jhala
author_facet	Kamakshi S. Tanwar Ayan Sadhu Yadvendradev V. Jhala
author_sort	Kamakshi S. Tanwar
title	Camera trap placement for evaluating species richness, abundance, and activity
title_short	Camera trap placement for evaluating species richness, abundance, and activity
title_full	Camera trap placement for evaluating species richness, abundance, and activity
title_fullStr	Camera trap placement for evaluating species richness, abundance, and activity
title_full_unstemmed	Camera trap placement for evaluating species richness, abundance, and activity
title_sort	camera trap placement for evaluating species richness, abundance, and activity
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dd6d9123cc114bb19a311be302001a75
work_keys_str_mv	AT kamakshistanwar cameratrapplacementforevaluatingspeciesrichnessabundanceandactivity AT ayansadhu cameratrapplacementforevaluatingspeciesrichnessabundanceandactivity AT yadvendradevvjhala cameratrapplacementforevaluatingspeciesrichnessabundanceandactivity
_version_	1718372223943704576

Camera trap placement for evaluating species richness, abundance, and activity

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