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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Family values: costs and benefits of communal nesting in the moorhen

Article Abstract:

Communal nesting in the moorhens, Gallinula chloropus, between mother and daughters, and also between unrelated females begins only when both the females lay their eggs, and has costs and benefits for both the females. The daughter's mating with her father leads to inbreeding and low survival rate of her offsprings. The daughter can improve her success in reproduction by copulating with a unrelated male. Mothers share their mates with their daughters without incurring any cost. Females in communal nesting favor the eggs of the other female in incubation more than they favor their own.

Author: McRae, Susan B.
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
Birds, Bird breeding, Eggs, Eggs (Biology), Incubation

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Siblicide, family conflict and the evolutionary limits of selfishness

Article Abstract:

Three distinct 'social dimensions' within a simple family of a sexual species were identified to elucidate behavioral and life-history phenotypes in sibling competition and parent-offspring conflict. These dimensions are the relationship between two adults, between siblings occupying the same nursery and the parent-offspring dimension characterized by an imbalance of physical power. Hamilton's rule, which set an evolutionary lower limit for selfishness, as well as modes of competition such as scramble and contest competition, are discussed.

Author: Mock, Douglas W., Parker, Geoffrey A.
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
Sibling rivalry, Competition (Biology), Resource partitioning (Ecology)

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Maintaining low intragroup relatedness: Evolutionary stability of nonkin social groups

Article Abstract:

An attempt is made to find out the ways in which sex-biased dispersal contributes to maintaining low intragroup relatedness by documenting dispersal using microsatellite data in the communal halictine bee, Lasioglossum (Chilalictus) hemichalceum. The numbers and genotypes of immature individuals found in late-season nests with adult occupants of post-season nests were compared.

Author: Kukuk, Penelope F., Bitney, Charla, Forbes, Stephen H.
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2005
Science & research, Behavior, Bees, Animal familial behaviour

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Subjects list: Research, Familial behavior in animals, Animal familial behavior
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