Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.

Accurate and precise abundance estimation is vital for informed wildlife conservation and management decision-making. Line transect surveys are a common sampling approach for abundance estimation. Distance sampling is often used to estimate abundance from line transect survey data; however, search e...

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Autores principales:	Nathan J Crum, Lisa C Neyman, Timothy A Gowan
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/52247483a0d442679c0d50300dcf96b5
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spelling	oai:doaj.org-article:52247483a0d442679c0d50300dcf96b52021-12-02T20:05:26ZAbundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.1932-620310.1371/journal.pone.0252231https://doaj.org/article/52247483a0d442679c0d50300dcf96b52021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252231https://doaj.org/toc/1932-6203Accurate and precise abundance estimation is vital for informed wildlife conservation and management decision-making. Line transect surveys are a common sampling approach for abundance estimation. Distance sampling is often used to estimate abundance from line transect survey data; however, search encounter spatial capture-recapture can also be used when individuals in the population of interest are identifiable. The search encounter spatial capture-recapture model has rarely been applied, and its performance has not been compared to that of distance sampling. We analyzed simulated datasets to compare the performance of distance sampling and spatial capture-recapture abundance estimators. Additionally, we estimated the abundance of North Atlantic right whales in the southeastern United States with two formulations of each model and compared the estimates. Spatial capture-recapture abundance estimates had lower root mean squared error than distance sampling estimates. Spatial capture-recapture 95% credible intervals for abundance had nominal coverage, i.e., contained the simulating value for abundance in 95% of simulations, whereas distance sampling credible intervals had below nominal coverage. Moreover, North Atlantic right whale abundance estimates from distance sampling models were more sensitive to model specification compared to spatial capture-recapture estimates. When estimating abundance from line transect data, researchers should consider using search encounter spatial capture-recapture when individuals in the population of interest are identifiable, when line transects are surveyed over multiple occasions, when there is imperfect detection of individuals located on the line transect, and when it is safe to assume the population of interest is closed demographically. When line transects are surveyed over multiple occasions, researchers should be aware that individual space use may induce spatial autocorrelation in counts across transects. This is not accounted for in common distance sampling estimators and leads to overly precise abundance estimates.Nathan J CrumLisa C NeymanTimothy A GowanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0252231 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nathan J Crum Lisa C Neyman Timothy A Gowan Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
description	Accurate and precise abundance estimation is vital for informed wildlife conservation and management decision-making. Line transect surveys are a common sampling approach for abundance estimation. Distance sampling is often used to estimate abundance from line transect survey data; however, search encounter spatial capture-recapture can also be used when individuals in the population of interest are identifiable. The search encounter spatial capture-recapture model has rarely been applied, and its performance has not been compared to that of distance sampling. We analyzed simulated datasets to compare the performance of distance sampling and spatial capture-recapture abundance estimators. Additionally, we estimated the abundance of North Atlantic right whales in the southeastern United States with two formulations of each model and compared the estimates. Spatial capture-recapture abundance estimates had lower root mean squared error than distance sampling estimates. Spatial capture-recapture 95% credible intervals for abundance had nominal coverage, i.e., contained the simulating value for abundance in 95% of simulations, whereas distance sampling credible intervals had below nominal coverage. Moreover, North Atlantic right whale abundance estimates from distance sampling models were more sensitive to model specification compared to spatial capture-recapture estimates. When estimating abundance from line transect data, researchers should consider using search encounter spatial capture-recapture when individuals in the population of interest are identifiable, when line transects are surveyed over multiple occasions, when there is imperfect detection of individuals located on the line transect, and when it is safe to assume the population of interest is closed demographically. When line transects are surveyed over multiple occasions, researchers should be aware that individual space use may induce spatial autocorrelation in counts across transects. This is not accounted for in common distance sampling estimators and leads to overly precise abundance estimates.
format	article
author	Nathan J Crum Lisa C Neyman Timothy A Gowan
author_facet	Nathan J Crum Lisa C Neyman Timothy A Gowan
author_sort	Nathan J Crum
title	Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
title_short	Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
title_full	Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
title_fullStr	Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
title_full_unstemmed	Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.
title_sort	abundance estimation for line transect sampling: a comparison of distance sampling and spatial capture-recapture models.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/52247483a0d442679c0d50300dcf96b5
work_keys_str_mv	AT nathanjcrum abundanceestimationforlinetransectsamplingacomparisonofdistancesamplingandspatialcapturerecapturemodels AT lisacneyman abundanceestimationforlinetransectsamplingacomparisonofdistancesamplingandspatialcapturerecapturemodels AT timothyagowan abundanceestimationforlinetransectsamplingacomparisonofdistancesamplingandspatialcapturerecapturemodels
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Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models.

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