About: An evaluation of field and noninvasive genetic methods for estimating Eurasian otter population size

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We compared two most frequently used methods of assessing abundance of Eurasian otter (Lutra lutra) populations, non-invasive genetic sampling (NGS) based on genotyping of faeces and field survey based on snow tracking. In a 100 km2 oligotrophic otter habitat with linear water bodies, both methods yielded very similar estimates (10-12 individuals). However, in a 100 km2 fishpond area, consisting of a complex network of rivers, fishponds, channels and marshes, genotyping of faeces revealed the presence of a higher number of individuals (46-50 genotypes) than the snow survey (38 individuals). CMR based estimates using CAPWIRE software were even higher, being twice the number assessed through snow tracking (76-81 individuals). Our results suggest the performance of both NGS and snow tracking are comparable in simple linear habitats but, in complex habitats with very high otter density, CMR analysis using genetic data, or a combination of genetic and field methods, is recommended. We compared two most frequently used methods of assessing abundance of Eurasian otter (Lutra lutra) populations, non-invasive genetic sampling (NGS) based on genotyping of faeces and field survey based on snow tracking. In a 100 km2 oligotrophic otter habitat with linear water bodies, both methods yielded very similar estimates (10-12 individuals). However, in a 100 km2 fishpond area, consisting of a complex network of rivers, fishponds, channels and marshes, genotyping of faeces revealed the presence of a higher number of individuals (46-50 genotypes) than the snow survey (38 individuals). CMR based estimates using CAPWIRE software were even higher, being twice the number assessed through snow tracking (76-81 individuals). Our results suggest the performance of both NGS and snow tracking are comparable in simple linear habitats but, in complex habitats with very high otter density, CMR analysis using genetic data, or a combination of genetic and field methods, is recommended. (en)
Title	An evaluation of field and noninvasive genetic methods for estimating Eurasian otter population size An evaluation of field and noninvasive genetic methods for estimating Eurasian otter population size (en)
skos:prefLabel	An evaluation of field and noninvasive genetic methods for estimating Eurasian otter population size An evaluation of field and noninvasive genetic methods for estimating Eurasian otter population size (en)
skos:notation	RIV/68081766:_____/09:00334279!RIV10-MSM-68081766
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/03/0757), P(LC06073), Z(AV0Z60930519)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Hájková, Petra Zemanová, Barbora
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav biologie obratlovců AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	302718
http://linked.open...ai/riv/idVysledku	RIV/68081766:_____/09:00334279
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	abundance; noninvasive genetic sampling; faecal DNA; capture-mark-recapture; snow tracking (en)
http://linked.open.../riv/klicoveSlovo	noninvasive genetic sampling capture-mark-recapture faecal DNA abundance snow tracking
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[F3A6435452AA]
http://linked.open...i/riv/nazevZdroje	Conservation Genetics
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Biodiversity Research Center Assessment of population size and population structure of Eurasian otter (Lutra lutra) in different habitats by a non-invasive genetic method
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	10
http://linked.open...iv/tvurceVysledku	Hájková, Petra Zemanová, Barbora Hájek, B. Roche, K.
http://linked.open...ain/vavai/riv/wos	000272374100004
http://linked.open...n/vavai/riv/zamer	Biodiverzita a ekologie obratlovců: Strategie ochrany a využívání přírodních populací
issn	1566-0621
number of pages	15 (xsd:int)

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