Abstract

Conflicting interests between the sexes to enhance their fitness potentials have resulted in several sexual strategies used by odontocetes under various social and ecological contexts. Mating tactics are diverse and non-mutually exclusive and can entail both precopulatory and postcopulatory mechanisms. Males typically rove between females, and their mating tactics include display, contest, endurance, scramble, and sperm competition. Female mating tactics to maintain mate choice and control paternity are less well documented but may include signal discrimination, mate choice copying, evasive behaviors, polyestry, multiple mating, and modified genitalia. Species-specific examples of mating tactics are reviewed, as are potential costs and benefits, to better understand the fitness trade-offs associated with odontocete sociosexual relationships.

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