Brent goose colonies near snowy owls: Internest distances in relation to breeding arctic fox densities

It was shown that in the years when the numbers of the Arctic foxes are high, even though the lemming numbers are high as well, Brent geese nest considerably closer to owls’ nests than in the years with low Arctic fox numbers. At values of the Arctic fox densities greater than one breeding pair per...

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Published inBiology bulletin of the Russian Academy of Sciences Vol. 40; no. 1; pp. 45 - 51
Main Authors Kharitonov, S. P, Ebbinge, B. S, de Fouw, J
Format Journal Article
LanguageEnglish
Published Dordrecht Springer-Verlag 2013
SP MAIK Nauka/Interperiodica
Subjects
Biochemistry
Biomedical and Life Sciences
breeding
Bubo scandiacus
Cell Biology
Ecology
geese
lemmings
Life Sciences
nests
peregrine falcons
rough-legged buzzards
taimyr peninsula
Vulpes lagopus
Zoology
Common Eider
Taimyr Peninsula
Brent Goose
Biology Bulletin
Bean Goose
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Summary:It was shown that in the years when the numbers of the Arctic foxes are high, even though the lemming numbers are high as well, Brent geese nest considerably closer to owls’ nests than in the years with low Arctic fox numbers. At values of the Arctic fox densities greater than one breeding pair per 20 km², the factor of lemming numbers ceases to affect the distance between owl and geese nests. This distance becomes dependent on the Arctic fox density (numbers). When the Arctic fox density is greater than the pronounced threshold, the owl-Brent internest distance is inversely and linearly related to the Arctic fox density.
Bibliography:http://dx.doi.org/10.1134/S106235901301007X
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1062-3590
1608-3059
DOI:10.1134/S106235901301007X