Female red-winged blackbirds accrue material benefits from copulating extra-pair males
Article Abstract:
Whether female red-winged blackbirds (Agelaius phoeniceus) gain material benefits from copulating with extra-pair males was examined. Females that copulated with an extra-pair male were allowed to feed in his territory. Males responded aggressively to predators at the nest of the females with which they copulated. These findings explained why fledging success is higher for females that engaged in extra-pair copulations and why starvation trends are lower in broods containing extra-pair young.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Polygyny in the blue tit: intra- and inter-sexual conflicts
Article Abstract:
The inter- and intra-sexual conflicts help in shaping the mating system of the blue tit, Parus caeruleus. The population of blue tit shows significant levels of polygyny. The males increase their ability to be polygynous by attracting more females or by displaying towards floater females. The hatching interval between the two broods determined how the parental care of the polygynous males would be allocated. The secondary brood females gave more young when the hatching interval was small.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Do female tree swallows guard their mates by copulating frequency? A comment on Whittingham et al
Article Abstract:
The evidence available in the work conducted by Whittingham et al. is not sufficient to conclude that a female tree swallow cannot influence her mate by copulating more frequently with him, as the experimental procedure followed by them has some drawbacks. Comparison of the frequency and timing of copulation of females whose males want additional females with that of females whose males do not will probably give evidence that copulation acts as a form of mate guarding.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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