Adaptive plasticity in nest-site selection in response to changing predation risk

Article Abstract:

Artificial nests baited with nuts and fitted with hair catchers and plasticine eggs were used for surveying the spatial activity of chipmunks in relation to vegetation parameters and to identify the nest-site parameters correlated with low chipmunk attendance. The studies show that the female chipmunks prefer to settle in territories having low predator abundance and choose their nest-sites in such a way as if they were assessing and trying to avoid the predators.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Habitat use under latent predation risk: A case study with wintering forest birds

Article Abstract:

Predation risk is a strong selective pressure influencing many aspects of life history of animals with important implications in the evolution of several morphological and behavioral adaptations, such as the differential use of the habitat. Selection of feeding locations within habitat follows a pattern minimizing predation risk and interspecific dominance hierarchies lead to the exploitation of unfavorable risky patches by subordinate species.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Tradeoffs between food abundance and predation danger in spatial usage of a stopover site by western sandpipers, Calidris mauri

Article Abstract:

The process of the distribution of food abundance and predation danger interaction is tested to explain spatial usage by migratory western sandpipers, Calidris mauri. The results suggest that the spatial usage by western sandpipers balances the tradeoff between the opposing spatial gradients in food and safety.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: