Reproductive responses of temperate and boreal Tengmalm's Owl Aegolius funereus populations to spatial and temporal variation in prey availability

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10294897" target="_blank" >RIV/00216208:11310/15:10294897 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/15:68094

Result on the web

<a href="http://dx.doi.org/10.1111/ibi.12244" target="_blank" >http://dx.doi.org/10.1111/ibi.12244</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ibi.12244" target="_blank" >10.1111/ibi.12244</a>

Result language

angličtina

Original language name

Reproductive responses of temperate and boreal Tengmalm's Owl Aegolius funereus populations to spatial and temporal variation in prey availability

Original language description

Environmental variation across space and time can strongly influence life-history strategies in vertebrates. It has been shown that the reproductive success of birds of prey is closely related to food availability. However, relatively little is known about intraspecific differences in reproductive success of birds in relation to varying ecological conditions across environmental gradients. We investigated the reproductive performance of Tengmalm's Owls Aegolius funereus in a temperate (Czech Republic, 50 degrees N) and a boreal (Finland, 63 degrees N) population in relation to long-term variations in the abundance of their main prey (small rodents). Prey densities at the northern site were much higher, but there were also large inter-annual fluctuations and years with steep summer declines of vole densities. Northern owls laid larger clutches but offspring production per nest was similar at both study sites. This resulted from higher nestling mortality in the northern population, espec

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Ibis

ISSN

0019-1019

e-ISSN

—

Volume of the periodical

157

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

369-383

UT code for WoS article

000351605100014

EID of the result in the Scopus database

2-s2.0-84925365271