silver spoon effect and habitat selection by natal dispersers

The silver spoon effect in the context of habitat selection occurs when dispersers in good condition are more likely to settle in high-quality habitats than dispersers in poor condition. Positive relationships between disperser condition and the quality of post-dispersal habitats are predicted by at...

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Bibliographic Details
Published in:Ecology letters 2006-11, Vol.9 (11), p.1179-1185
Main Author: Stamps, Judy A
Format: Article
Language:English
Subjects:
Animal Migration - physiology
Animals
Birds - physiology
Comparative search
competition
Demography
Ecosystem
habitat selection
ideal despotic distribution
Invertebrates - physiology
natal disperser
search tactics
sequential search
Time Factors
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Summary:The silver spoon effect in the context of habitat selection occurs when dispersers in good condition are more likely to settle in high-quality habitats than dispersers in poor condition. Positive relationships between disperser condition and the quality of post-dispersal habitats are predicted by at least two non-exclusive ultimate hypotheses. The competition hypothesis assumes that a disperser's condition affects its chances of competing for space or joining an established group after arriving at a high-quality habitat, while the search hypothesis assumes that a disperser's condition affects its selectivity, and hence its chances of accepting a lower-quality habitat when it is searching for a new habitat. Thus far, silver spoon effects in the context of habitat selection have been reported in only a handful of species (several birds and marine invertebrates), but this study suggests that they may be relatively common in particular species and situations.
ISSN:1461-023X
1461-0248
DOI:10.1111/j.1461-0248.2006.00972.x