Evidence for positive density-dependent emigration in butterfly metapopulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F11%3A53158" target="_blank" >RIV/60460709:41210/11:53158 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00442-011-2025-x" target="_blank" >http://dx.doi.org/10.1007/s00442-011-2025-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00442-011-2025-x" target="_blank" >10.1007/s00442-011-2025-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence for positive density-dependent emigration in butterfly metapopulations

Popis výsledku v původním jazyce

A positive effect of (meta)population density on emigration has been predicted by many theoretical models and confirmed empirically in various organisms. However, in butterflies, the most popular species for dispersal studies, the evidence for its existence has so far been equivocal, with negative relationships between density and emigration being reported more frequently. We analysed dispersal in sympatric metapopulations of two Maculinea butterflies, intensively surveyed with mark?release?recapture methods for 7 years. Dispersal parameters, derived using the virtual migration model, were assessed against butterfly densities, which fluctuated strongly over the study period. Emigration was positively correlated with density, and this effect was particularly strong at densities above carrying capacity, when emigration increased up to threefold in females and twofold in males compared with the normal levels. In turn, density had little impact on other dispersal parameters analysed.

Název v anglickém jazyce

Evidence for positive density-dependent emigration in butterfly metapopulations

Popis výsledku anglicky

A positive effect of (meta)population density on emigration has been predicted by many theoretical models and confirmed empirically in various organisms. However, in butterflies, the most popular species for dispersal studies, the evidence for its existence has so far been equivocal, with negative relationships between density and emigration being reported more frequently. We analysed dispersal in sympatric metapopulations of two Maculinea butterflies, intensively surveyed with mark?release?recapture methods for 7 years. Dispersal parameters, derived using the virtual migration model, were assessed against butterfly densities, which fluctuated strongly over the study period. Emigration was positively correlated with density, and this effect was particularly strong at densities above carrying capacity, when emigration increased up to threefold in females and twofold in males compared with the normal levels. In turn, density had little impact on other dispersal parameters analysed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Oecologia

ISSN

0029-8549

e-ISSN

—

Svazek periodika

167

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

657-665

Kód UT WoS článku

000295984800007

EID výsledku v databázi Scopus

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