The effect of elevation and habitat cover on nest box occupancy and diet composition of Boreal Owls Aegolius funereus

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895435" target="_blank" >RIV/60076658:12310/17:43895435 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/17:74265

Result on the web

<a href="http://www.tandfonline.com/doi/full/10.1080/00063657.2017.1316236?scroll=top&needAccess=true" target="_blank" >http://www.tandfonline.com/doi/full/10.1080/00063657.2017.1316236?scroll=top&needAccess=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00063657.2017.1316236" target="_blank" >10.1080/00063657.2017.1316236</a>

Result language

angličtina

Original language name

The effect of elevation and habitat cover on nest box occupancy and diet composition of Boreal Owls Aegolius funereus

Original language description

Capsule: Diet composition of Boreal Owls Aegolius funereus was not affected by habitat cover, but it changed along the elevational gradient.Aims: To assess the effect of elevation and habitat cover on nest box occupancy and diet composition of a central European population of Boreal Owls.Methods: A Boreal Owl population was studied in the Sumava Mountains, Czech Republic, at elevations from 500 to 1300m above sea level (asl), during 1984-2005.Results: Boreal Owls occupied more frequently nest boxes above 600m asl, but they did not clearly prefer any elevational band. Habitat cover did not affect the number of nesting attempts. There was also no relationship between habitat cover and diet composition. However, diet composition significantly changed along the elevational gradient. In particular, the proportion of alternative prey of Boreal Owls, i.e. birds and shrews Sorex sp., rose with increasing elevation. The proportion of voles Myodes and mice Apodemus in the diet decreased with increasing elevation. Among bird prey, the proportion of finches Fringillidae positively correlated with elevation.Conclusions: Central European Boreal Owls did not show a clear preference for any habitat cover or elevational band, but the quality of the owls&apos; diet significantly decreased with increasing elevation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10615 - Ornithology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Bird Study

ISSN

0006-3657

e-ISSN

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Volume of the periodical

64

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

222-231

UT code for WoS article

000401454500013

EID of the result in the Scopus database

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