Publication
Title
Between cohort variation in dispersal distance in the Eurasian Kestrel **Falco tinnunculus** L. as shown by ringing recoveries
Author
Abstract
Ringing recoveries of European Kestrels from north-western Europe have shown that a very low proportion of this population is migratory, and that even large-distance movements can be attributed mainly to dispersal movements of young birds. Several studies have shown the importance of food availability on dispersal rates in raptors, including the European Kestrel. Based on recovery data, we show here that dispersal rate, as well as dispersal distance, of nestling Belgian kestrels varied strongly between cohorts born in different years. Both were negatively correlated with measures of the quality of the year in terms of food, as indicated by the number of fledglings per nest and the energy content of the natural seed crop (acorns plus beechnuts) in deciduous woodland in the preceding winter. In good years dispersal activity was lower than in bad years. Dispersal activity also showed a negative trend over the whole study period (1967-1989).
Language
English
Source (journal)
Ardea / Nederlandse Ornithologische Unie. - Arnhem
Publication
Arnhem : 1998
ISSN
0373-2266
Volume/pages
86(1998), p. 147-152
ISI
000079218100002
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.10.2008
Last edited 14.11.2017
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