Nest predation: the relative effects of nest characteristics, clutch size and parental behavior
Article Abstract:
Nest characteristics, clutch size and parental behavior have differential effects on nest predation rates in blackbirds, Turdus merula. Nest predation rates during the egg stage are the same for natural nests with parents and artificial clutches without parents. Nests with artificial clutches have a higher morality than natural nests. Clutch size fails to affect the nest predation rates for natural nests. Nest characteristics such as detectability affect the nest failure rates in the absence of parents, but not in their presence.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Nest switching and alloparental care in colonial white storks
Article Abstract:
The alloparental care and nest switching is observed in white storks, Ciconia ciconia. Alloparental care is the nest switching by young birds for full adoption by foster parents. Nest switching is due to decrease in feeding rates by the parents and an increase in flight exercises of nestmates. Residential chicks suffer lower feeding rates during adoption. The chicks reach their nutritional independence in foster broods. Nest switching was observed in 40% of broods.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Travel distance and mass gain in wintering blackbirds
Article Abstract:
Wide ranging birds have a greater mass-dependent risk of predation than more sedentary birds. European blackbirds were examined to determine whether they had a low mass than more sedentary birds. Blackbirds that travelled shorter distances and less often to a feeder had the higher mass midwinter, compared to their spring mass. The link between distance travelled and mass may be independent of food supply.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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