Size-assortive mating, male choice and female choice in the curculionid beetle Diaprepes abbreviatus
Article Abstract:
Mate choice of both males and females for large individuals seems to be the mechanism of size-assortive mating in the curculionid beetle Diaprepes abbreviatus, according to research designed to investigate size-assortative mating in this beetle and identify the mechanisms by which it takes place. This research tested each of B.J. Crespi's three hypotheses regarding the mechanisms that bring about size-assortative mating. It was not possible to find a full explanation for female preference for large males, but there could be a link between a male's size and the amount of protein in the nuptial gift or between a male's size and the size of his sons.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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Male-male competition and female choice in brown trout
Article Abstract:
The opportunity for brown trout females to express mate choice is probably as limited as in Atlantic salmon. It seems likely that female mate choice does not have much impact on the evolution and maintenance of male sexual characteristics. It is not known why brown trout females should prefer to dig close to males with a large adipose fin. This is possibly because these males have a higher long-term mating success. It appears that female choice, on the basis of the size of the male's adipose fin, is overridden by male-male competition.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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Future value and patch choice in least chipmunks
Article Abstract:
Captive least chipmunks, Tamias minimus, were used in the investigation of the valuation strategy used by this species in assessing the relative value of buried seed patches. In all experiments conducted, the subjects chose the patch from which they have taken less despite experiencing comparable yields from the different patches. Further, they refused to return to depleted patches but made exceptions in cases of replenished patches.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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