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Female mate choice is not affected by mate condition in a fish with male care

Artikel i vetenskaplig tidskrift
Författare J. Sundin
Gry Sagebakken
Charlotta Kvarnemo
Publicerad i Acta Ethologica
Volym 16
Nummer/häfte 3
Sidor 189-194
ISSN 0873-9749
Publiceringsår 2013
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 189-194
Språk en
Länkar dx.doi.org/10.1007/s10211-013-0149-...
Ämnesord Condition dependence, Female choice, Inter-sexual selection, Paternal care, Syngnathidae, PIPEFISH SPECIES SYNGNATHIDAE, CONDITION-DEPENDENT TRAIT, SEXUAL, SELECTION, NO EVIDENCE, MATING PREFERENCES, ROLE-REVERSAL, BLUE TITS, QUALITY, STICKLEBACKS, COLORATION
Ämneskategorier Zoologi

Sammanfattning

Several studies have shown that mate choice based on condition leads to higher reproductive success of the choosing individual. Yet, a growing body of literature has failed to find support for mate choice based on mate condition, even when the choosing individual would clearly benefit from such a choice. This indicates that animals' mate choice is often more complex than currently appreciated and that even well-founded expected preferences cannot be taken for granted. Using the broad-nosed pipefish, Syngnathus typhle, we manipulated male condition experimentally to explore whether it affects female mate choice. In this sex-role-reversed species, males care for the offspring in a specialised brood pouch. Males are the choosier sex, but given the opportunity, females are selective as well. During brooding, males can both provide embryos with nutrients and take up nutrients that originate from eggs deposited in the pouch, and embryo survival correlates positively with male condition. Together, this suggests that it would be beneficial for females to mate with males in high condition. However, we found no female preference for males in better condition. Thus, this study adds to the literature of mate choice that is unaffected by mate condition. Possible reasons for our result are discussed.

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