Extraterritorial forays and male parental care in hooded warblers
Article Abstract:
A new study of male hooded warblers tests whether the amount of parental care they provide is negatively correlated with extraterritorial foray effort.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2000
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Effects of testosterone on use of space by male dark-eyed juncos when their mates are fertile
Article Abstract:
Spatial activity in male birds could be determined by testosterone levels. A study of the effects of testosterone on male dark-eyed juncos, using telemetry, is presented. It is shown that the spatial use of males with artificially elevated levels of testosterone is not significantly different from control males when their females are fertile, both occupying similar-sized core areas and similar home ranges. Males with higher testosterone levels did not spend more time with their mates and their territories were similarly intruded.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Extra-pair mating effort of male hooded warblers, Wilsonia citrina
Article Abstract:
A study was conducted to examine the frequency and duration of the mating intrusions of the male hooded warbler, Wilsonia citrina, onto neighboring territories. Radio-tagged male birds were followed using a Lotek ST1000 receiver and a hand-held three-element antenna. Results showed that most of the male forays were to adjacent territories. They also suggested that extra-pair copulation takes place primarily among immediate neighbors.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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