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Intraspecific nest parasitism and adoption of young in the barnacle goose: effects on survival and reproductive performance
Uppsala University, Sweden.
Uppsala University, Sweden.
Uppsala University, Sweden.
1995 (English)In: Animal Behaviour, ISSN 0003-3472, E-ISSN 1095-8282, Vol. 50, no 5, p. 1349-1360Article in journal (Refereed) Published
Abstract [en]

DNA fingerprinting was used to determine the proportion of extra-pair young in a population of barnacle geese, Branta leticopsis, breeding in the Baltic area, Sweden. Of 137 analysed fledged young 17% were found to be extra-pair young. One or more extra-pair young were found in 27% of the 63 analysed families. The proportion of extra-pair young differed between years. No case of extra-pair fertilization was detected. All extra-pair young at fledgling originated either from intraspecific nest parasitism or from adoptions of foreign hatched young. Broods with extra-pair young at fledgling were significantly larger than broods without extra-pair young. However, the number of within-pair young did not differ significantly in broods with and without extra-pair young. Body mass, survival or subsequent reproductive performance did not differ between parents with and without extra-pair fledged young. Post-fledgling survival and age at first breeding were not significantly different between the three analysed classes of fledged young, i.e., within-pair young in families without extra-pair young, within-pair young in families with at least one extra-pair young, and extra-pair young. It is concluded that possible costs or benefits associated with caring for extra-pair fledged young are small or absent in this population.

Place, publisher, year, edition, pages
Elsevier, 1995. Vol. 50, no 5, p. 1349-1360
National Category
Ecology
Research subject
Natural Science
Identifiers
URN: urn:nbn:se:lnu:diva-33015DOI: 10.1016/0003-3472(95)80050-6OAI: oai:DiVA.org:lnu-33015DiVA, id: diva2:706054
Available from: 2008-10-17 Created: 2014-03-18 Last updated: 2017-12-05Bibliographically approved

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Larsson, Kjell

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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  • Other locale
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