Kin but less than kind : within-group male relatedness does not increase female fitness in seed beetles
| Autor: | Martin I. Lind, Sophie Bricout, Elena C. Berg, Alexei A. Maklakov, Shannon Monahan |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Male Offspring Evolution media_common.quotation_subject Kin selection 010603 evolutionary biology 01 natural sciences General Biochemistry Genetics and Molecular Biology Competition (biology) mate harm Sexual conflict Evolutionsbiologi 03 medical and health sciences Sexual Behavior Animal Animals Callosobruchus maculatus kin selection Mating 030304 developmental biology General Environmental Science media_common 0303 health sciences Evolutionary Biology General Immunology and Microbiology biology Reproductive success Reproduction General Medicine biology.organism_classification Coleoptera Harm sexual conflict Female General Agricultural and Biological Sciences Demography Research Article |
| Zdroj: | Proceedings of the Royal Society B: Biological Sciences |
| Popis: | Theory maintains within-group male relatedness can mediate sexual conflict by reducing male–male competition and collateral harm to females. We tested whether male relatedness can lessen female harm in the seed beetle Callosobruchus maculatus . Male relatedness did not influence female lifetime reproductive success or individual fitness across two different ecologically relevant scenarios of mating competition. However, male relatedness marginally improved female survival. Because male relatedness improved female survival in late life when C. maculatus females are no longer producing offspring, our results do not provide support for the role of within-group male relatedness in mediating sexual conflict. The fact that male relatedness improves the post-reproductive part of the female life cycle strongly suggests that the effect is non-adaptive. We discuss adaptive and non-adaptive mechanisms that could result in reduced female harm in this and previous studies, and suggest that cognitive error is a likely explanation. |
| Databáze: | OpenAIRE |
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