Female mating strategy and male brood cannibalism in a sand-dwelling cardinalfish

Article Abstract:

An understanding of the evolution of the reproductive behaviour of fish must take into account sexual conflict. A new study investigates the sexual strategies of male and female cardinalfish, which breed in sandy areas around coral colonies. Results show females move between coral colonies to find mates more often than males and frequently change their mates to shorten interspawning periods. Mate searching appears to increase mortality, possibly reducing competition between females for males. Filial cannibalism by males may be avoided if there is low mating availability. Further details of the study are presented.

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Female characteristics and parental care mode in the creching system of eiders, Somateria mollissima

Article Abstract:

Research into parental care behaviours among eiders, Somateria mollissima, is presented. Females in poor body condition were found to abandon their broods more often than those in good condition. Crechin females were, on average, in less good condition than lone tenders.

Behavior, Eider, Parental behavior in animals, Animal parental behavior

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Male interactions and female mate choice in the sand goby, Pomatoschistus minutus

Article Abstract:

Research is presented concerning the preferences which were expressed by female sand gobies under conditions which varied the male-male interactions during mating. The impeding of female choice by male-male interactions is discussed.

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