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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Status signalling, metabolic rate and body mass in the siskin: the cost of being a subordinate

Article Abstract:

The size of the black bib of the siskin, Carduelis spinus, which is a badge of dominance, is negatively linked with metabolic rate in daylight. It was found that siskins with small badges, who are therefore subordinates, have a higher metabolic rate in the light than those with large badges. This finding also applied when true dominance relationships based on agonistic encounters were investigated. This research provides strong support for the hypothesis that in species in which social status is indicated by plumage colour, subordinates pay the metabolic price of social grouping.

Author: Senar, Juan Carlos, Polo, Vicente, Uribe, Francesc, Camerino, Montse
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2000
Social hierarchy in animals, Dominance (Animal behavior)

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Sources of individual shy-bold variations in antipredator behavior of male Iberian rock lizards

Article Abstract:

The sources of individual variation in antipredator behavior of adult male lizards Lacerta Montizola were examined in a laboratory experiment. Observations suggested that the position of an individual in the shy-bold continua might reflect its optimal antipredator behavior that would be a function of its health, general quality and ability to evade predators.

Author: Polo, Vicente, Lopez, Pilar, Martin, Jose, Hawlena, Dror, Amo, Luisa
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2005
Israel, Analysis, Lizards

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Coal tits, Parus ater, lose weight in response to chases by predators

Article Abstract:

It is predicted that birds decrease their body weight in response to increased predation because lighter birds are able to take flight faster and are more maneuverable. A new study investigates the effects of predation on coal tits. Results suggest that coal tits, and other small birds, lose weight in response to chases by predators.

Author: Polo, Vicente, Carrascal, Luis M.
Publisher: Elsevier B.V.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
Animal behavior, Titmice, Paridae

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Subjects list: Research, Behavior, Predation (Biology)
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