The effect of predator presence on body mass in captive greenfinches
Article Abstract:
Captive greenfinches, Carduelis chloris, adjust their body mass in response to risk associated with the presence of a predator. The decline in body mass is proportionate to the perceived level of predation risk. Handling the birds also reduces the body mass. The reduced body mass enhances the agility and the flight speed, and ensures the high survival and the escape chances against predator attack. The results support the idea that body mass or fat reserves are a trade-off between starvation and predation risk.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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The spatial distribution of nonrewarding artificial flowers affects pollinator attraction
Article Abstract:
Studies have indicated that the foraging of insect pollinators may be influenced by early blooming and colour polymorphism. A further investigation using bumblebees considers whether pollinator behaviour favours aggregated flowering in orchid species.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2000
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