Intraspecific nest parasitism in the barnacle goose: behavioural tactics of parasites and hosts
Article Abstract:
Barnacle geese, Branta leucopsis, are found to indulge in intraspecific nest parasitism through females trying to lay eggs in the nests of other females. This was found 36 times. Parasitic egg-laying efforts are monitored both in mornings and evenings and continued on an average for at least 20 minutes. Nest parasitism appears to be a facultative strategy in barnacle geese as parasitic females are found to have nests of their own before or after they acted parasitically but never in that year itself.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Vigilance in relation to brood size and predator abundance in the barnacle goose, Branta leucopsis
Article Abstract:
A study of barnacle geese and their parental care behavior shows that the intensity of their watchfulness over their young ones depends on the brood size and the abundance of predators in a region. The size of the clutch indirectly depends on the amount of time geese can give to their offspring in terms of vigilance, and the effect this vigilance will have on their future reproduction pattern. The site with high predation risk produced fewer offspring and a more intense vigilance.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
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Intraspecific nest parasitism and adoption of young in the barnacle goose: effects on survival and reproductive performance
Article Abstract:
The intraspecific nest parasitism and adoption of young after hatching among barnacle geese, Branta leucopsis, causes extra-pair young in families. Use of the DNA fingerprinting method determines the frequency of extra-pair young at fledging. The rearing of extra-pair young is independent of the age and experience of the parents. The body mass, survival and reproductive strategies of parents both with and without extra-pair fledged young are the same.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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