About: Measurement error in a burrow index to monitor relative population size in the common vole

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	By examining the indices to monitor population size in the common vole, we found that relative sampling errors were enormous for low-density populations, attaining almost 400%. However, in high-density populations and for large sample sizes, the relative error dropped below 10% and the estimate is quite reliable. The dispersion of burrow entrances became more clumped at low population densities enhancing further the sampling variation. We demonstrated that the index is related to population size in a non-linear fashion, overestimating the population change at high densities. Consequently, population dynamics of the common vole described by the untransformed burrow index appear more variable than they are in reality. By examining the indices to monitor population size in the common vole, we found that relative sampling errors were enormous for low-density populations, attaining almost 400%. However, in high-density populations and for large sample sizes, the relative error dropped below 10% and the estimate is quite reliable. The dispersion of burrow entrances became more clumped at low population densities enhancing further the sampling variation. We demonstrated that the index is related to population size in a non-linear fashion, overestimating the population change at high densities. Consequently, population dynamics of the common vole described by the untransformed burrow index appear more variable than they are in reality. (en) Prošetřili jsme vzorkovací a systematickou chybu měření u indexu počet znovuotevřených nor na ha u hraboše polního. Zjistili jsme, že vzorkovací je extrémně velká při malých početnostech, systematická chyba je naopak velka při vyšších denzitách. (cs)
Title	Measurement error in a burrow index to monitor relative population size in the common vole Chyba měření norového indexu pro monitorování relativní velikosti populace u hraboše polního (cs) Measurement error in a burrow index to monitor relative population size in the common vole (en)
skos:prefLabel	Measurement error in a burrow index to monitor relative population size in the common vole Chyba měření norového indexu pro monitorování relativní velikosti populace u hraboše polního (cs) Measurement error in a burrow index to monitor relative population size in the common vole (en)
skos:notation	RIV/68081766:_____/07:00084920!RIV08-AV0-68081766
http://linked.open.../vavai/riv/strany	169;176
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/04/2003), Z(AV0Z60930519), Z(MSM6198959212)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Nesvadbová, Jiřina Tkadlec, Emil Heroldová, Marta Zejda, Jan
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	432455
http://linked.open...ai/riv/idVysledku	RIV/68081766:_____/07:00084920
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bias; colonisation; dispersion; Microtus arvalis; precision; sampling error (en)
http://linked.open.../riv/klicoveSlovo	bias colonisation dispersion precision sampling error Microtus arvalis
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[FA16C5A59D1E]
http://linked.open...i/riv/nazevZdroje	Folia zoologica
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Ecological interactions in populations of small rodents
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Tkadlec, Emil Heroldová, Marta Losík, J. Zejda, Jan Nesvadbová, Jiřina Lisická, L.
http://linked.open...n/vavai/riv/zamer	Biodiverzita a ekologie obratlovců: Strategie ochrany a využívání přírodních populací Life-history strategies of animals: proximate and ultimate mechanisms
issn	0139-7893
number of pages	8 (xsd:int)

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