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Cost of reproduction and offspring quality in the evolution of reproductive effort

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Jyväskylä studies in biological and environmental science
Authors
Oksanen, Tuula
Date
2002
Discipline
Ekologia ja ympäristönhoito

 
Any organism has a limited amount of resources, which have to be partitioned among several activities such as maintenance, growth and reproduction. Reproductive effort is defined as the proportion of parental resources devoted to fecundity and offspring survival. The extent of reproductive effort is restricted by trade-offs that cancel out the advantages of increasing investment in reproduction. This thesis presents an investigation into the determinants of reproductive effort in the bank vole, Clethrionomys glareolus, focusing mainly on two major life history trade-offs i.e. cost of reproduction and trade-off between offspring number and quality. Insights into other potentially important processes such as maternal effects, density dependent selection and differential allocation of maternal effort are included. The analyses are based on data acquired by several different experimental approaches.
Publisher
University of Jyväskylä
ISBN
951-39-1297-3
ISSN Search the Publication Forum
1456-9701
Keywords
poikueet lisääntymiskäyttäytyminen lisääntyminen kustannukset poikaset laatu metsämyyrä myytit koiraat naaraat luonnonvalinta
URI

http://urn.fi/URN:ISBN:951-39-1297-3

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  • Väitöskirjat [3178]

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