Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods

Individual identification is required for long-term investigations that examine population-level changes in survival or abundance, and mechanisms associated with these changes in wild populations. Such identification generally requires the application of a unique mark, or the documentation of charac...

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Autores principales:	Lindsey S. Roberts, Abigail B. Feuka, Erin Muths, Bennett M. Hardy, Larissa L. Bailey
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Amphibian Capture-recapture Greater Yellowstone Ecosystem Marking Rocky Mountain National Park Stress Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/71c7d918e40f461b8d8eb08766df27d5
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spelling	oai:doaj.org-article:71c7d918e40f461b8d8eb08766df27d52021-12-01T04:59:20ZTrade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods1470-160X10.1016/j.ecolind.2021.108110https://doaj.org/article/71c7d918e40f461b8d8eb08766df27d52021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21007755https://doaj.org/toc/1470-160XIndividual identification is required for long-term investigations that examine population-level changes in survival or abundance, and mechanisms associated with these changes in wild populations. Such identification generally requires the application of a unique mark, or the documentation of characteristics distinctive to each individual animal. To minimize impacts to often declining populations, scientific and ethical concerns encourage marking strategies that minimize handling time (i.e., stress) for captured individuals. We examined the relative efficacy of passive integrated transponder (PIT)-tagging and photo-identification to identify individual Boreal toads (Anaxyrus boreas boreas) in field and indoor settings. We evaluated whether initial handling time was influenced by identification method (PIT-tag or photo-identification) or environment (field or indoor) and assessed the applicability of each method in long-term monitoring programs. Initial handling time was higher for PIT-tagging than photo-identification and higher in the field than in an indoor environment; however, handling time for previously PIT-tagged individuals was greatly reduced such that photo-identification led to > 5.5 times more handling time than PIT-tagging over the course of a toad's lifetime. Investigators must determine the trade-off between initial and subsequent handling times to minimize the expected (mean) cumulative handling time for an individual over the course of a study. Cumulative handling time is a function of the study design and the species’ survival and detection probabilities. We developed a Shiny Application to allow investigators to determine the identification method that minimizes handling time for their own study system.Lindsey S. RobertsAbigail B. FeukaErin MuthsBennett M. HardyLarissa L. BaileyElsevierarticleAmphibianCapture-recaptureGreater Yellowstone EcosystemMarkingRocky Mountain National ParkStressEcologyQH540-549.5ENEcological Indicators, Vol 130, Iss , Pp 108110- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Amphibian Capture-recapture Greater Yellowstone Ecosystem Marking Rocky Mountain National Park Stress Ecology QH540-549.5
spellingShingle	Amphibian Capture-recapture Greater Yellowstone Ecosystem Marking Rocky Mountain National Park Stress Ecology QH540-549.5 Lindsey S. Roberts Abigail B. Feuka Erin Muths Bennett M. Hardy Larissa L. Bailey Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
description	Individual identification is required for long-term investigations that examine population-level changes in survival or abundance, and mechanisms associated with these changes in wild populations. Such identification generally requires the application of a unique mark, or the documentation of characteristics distinctive to each individual animal. To minimize impacts to often declining populations, scientific and ethical concerns encourage marking strategies that minimize handling time (i.e., stress) for captured individuals. We examined the relative efficacy of passive integrated transponder (PIT)-tagging and photo-identification to identify individual Boreal toads (Anaxyrus boreas boreas) in field and indoor settings. We evaluated whether initial handling time was influenced by identification method (PIT-tag or photo-identification) or environment (field or indoor) and assessed the applicability of each method in long-term monitoring programs. Initial handling time was higher for PIT-tagging than photo-identification and higher in the field than in an indoor environment; however, handling time for previously PIT-tagged individuals was greatly reduced such that photo-identification led to > 5.5 times more handling time than PIT-tagging over the course of a toad's lifetime. Investigators must determine the trade-off between initial and subsequent handling times to minimize the expected (mean) cumulative handling time for an individual over the course of a study. Cumulative handling time is a function of the study design and the species’ survival and detection probabilities. We developed a Shiny Application to allow investigators to determine the identification method that minimizes handling time for their own study system.
format	article
author	Lindsey S. Roberts Abigail B. Feuka Erin Muths Bennett M. Hardy Larissa L. Bailey
author_facet	Lindsey S. Roberts Abigail B. Feuka Erin Muths Bennett M. Hardy Larissa L. Bailey
author_sort	Lindsey S. Roberts
title	Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
title_short	Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
title_full	Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
title_fullStr	Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
title_full_unstemmed	Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods
title_sort	trade-offs in initial and long-term handling efficiency of pit-tag and photographic identification methods
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/71c7d918e40f461b8d8eb08766df27d5
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Trade-offs in initial and long-term handling efficiency of PIT-tag and photographic identification methods

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