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Environmentally induced morphological variation in the Barnacle Goose, Branta leucopsis
Uppsala University, Sweden.
Uppsala University, Sweden.
1991 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 4, no 4, p. 619-636Article in journal (Refereed) Published
Abstract [en]

The environmental conditions to which juvenile barnacle geese (Branta leucopsis) were exposed during growth were found to affect their body size at fledging as well as their final adult body size. Small juveniles showed compensatory growth from the time of fledging up to one year of age, but this did not fully compensate the differences in body size that were established before fledging. The variation in protein content in plants eaten during growth could probably explain the observed body size differences, sometimes of more than 10%, between different categories of adult geese. Our results imply that one cannot infer selection on morphological characters from differences between samples of adult birds from different localities or from different cohorts within a population, without first showing that environmental conditions during growth do not affect the development of the characters under study.

Place, publisher, year, edition, pages
John Wiley & Sons, 1991. Vol. 4, no 4, p. 619-636
Keywords [en]
Morphological variation, barnacle goose, growth, cohort differences, geographic variation
National Category
Evolutionary Biology
Research subject
Natural Science
Identifiers
URN: urn:nbn:se:lnu:diva-33034DOI: 10.1046/j.1420-9101.1991.4040619.xOAI: oai:DiVA.org:lnu-33034DiVA, id: diva2:706131
Available from: 2014-03-19 Created: 2014-03-19 Last updated: 2017-12-05Bibliographically approved

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Larsson, Kjell

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