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Genetic and potential non-genetic benefits increase offspring fitness of polyandrous females in non-resource based mating system |
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| Authors: | Jukka Kekäläinen Geir Rudolfsen Matti Janhunen Lars Figenschou Nina Peuhkuri Niina Tamper Raine Kortet |
| Affiliation: | 1.Department of Biological and Environmental Science, University of Jyv?skyl?,University of Jyv?skyl?,Jyv?skyl?,Finland;2.Ecological Research Institute,University of Eastern Finland,Joensuu,Finland;3.Department of Evolution and Ecology, Institute of Biology,University of Troms?,Troms?,Norway;4.Finnish Game and Fisheries Research Institute,Joensuu Game and Fisheries Research,Joensuu,Finland;5.Finnish Game and Fisheries Research Institute,Helsinki,Finland;6.Department of Biology,University of Eastern Finland,Joensuu,Finland;7.Department of Biology, University of Oulu,University of Oulu,Oulu,Finland |
| Abstract: | BackgroundThe adaptive significance of female polyandry is currently under considerable debate. In non-resource based mating systems, indirect, i.e. genetic benefits have been proposed to be responsible for the fitness gain from polyandry. We studied the benefits of polyandry in the Arctic charr (Salvelinus alpinus) using an experimental design in which the material investments by the sires and maternal environmental effects were controlled. |
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