About: Common vole (Microtus arvalis) population sex ratio: biases and process variation.

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About: Common vole (Microtus arvalis) population sex ratio: biases and process variation. Goto Sponge NotDistinct Permalink

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	Vole population sex ratio varies seasonally. However, population sex ratios have usually been estimated using naïve estimators that do not allow for biases owing to the sex difference in capture probabilities and movement distances (i.e., effective areas sampled). Here we aimed to advance the methodological approach, recognizing that there are two different classes of contributing mechanisms to the pattern which are best addressed separately: (1) those mechanisms imposing a systematic error (bias) in population estimates and (2) those generating the true process variation. Analyzing 7-year capture/recapture data in the common vole (Microtus arvalis (Pallas, 1778)), we quantified both types of biases and revealed that the bias owing to differential capture rates was often severe and less predictable, whereas that owing to differential effective areas was smaller and overestimated male numbers for most of the year. We demonstrated unambiguously that the unbiased population sex ratio indeed varies Vole population sex ratio varies seasonally. However, population sex ratios have usually been estimated using naïve estimators that do not allow for biases owing to the sex difference in capture probabilities and movement distances (i.e., effective areas sampled). Here we aimed to advance the methodological approach, recognizing that there are two different classes of contributing mechanisms to the pattern which are best addressed separately: (1) those mechanisms imposing a systematic error (bias) in population estimates and (2) those generating the true process variation. Analyzing 7-year capture/recapture data in the common vole (Microtus arvalis (Pallas, 1778)), we quantified both types of biases and revealed that the bias owing to differential capture rates was often severe and less predictable, whereas that owing to differential effective areas was smaller and overestimated male numbers for most of the year. We demonstrated unambiguously that the unbiased population sex ratio indeed varies (en)
Title	Common vole (Microtus arvalis) population sex ratio: biases and process variation. Common vole (Microtus arvalis) population sex ratio: biases and process variation. (en)
skos:prefLabel	Common vole (Microtus arvalis) population sex ratio: biases and process variation. Common vole (Microtus arvalis) population sex ratio: biases and process variation. (en)
skos:notation	RIV/61989592:15310/05:00010475!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA206/04/2003), P(GA524/01/1316), P(GP206/02/P068), S, Z(AV0Z60930519), Z(MSM 153100014), Z(MSM6198959212)
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Tkadlec, Emil
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	515747
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/05:00010475
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	capture-recapture; Cormack-Jolly-Seber models; demography (en)
http://linked.open.../riv/klicoveSlovo	demography Cormack-Jolly-Seber models capture-recapture
http://linked.open...odStatuVydavatele	CA - Kanada
http://linked.open...ontrolniKodProRIV	[A8FB0635CB58]
http://linked.open...i/riv/nazevZdroje	Canadian Journal of Zoology
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Ecological interactions in populations of small rodents Population dynamics of the common vole and a new practical method to forecast its abundance Sex ratio in voles - can mothers manipulate sex of their offspring?
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	83
http://linked.open...iv/tvurceVysledku	Bryja, Josef Tkadlec, Emil Heroldová, Marta Jánová, Eva Losík, Jan Nesvadbová, Jiřina Trebatická, Lenka
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 http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100014
issn	0008-4301
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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