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.

Analysis, Bird nests, Chipmunks

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Uncoupling strong predator-prey interactions in streams: The role of marginal macrophytes

Article Abstract:

Efforts are made to examine whether the marginal macrophytes of chalk streams help buffer the interaction between the freshwater shrimp, Gammarus pulex and a benthic fish predator, Cottus gobio, both characteristically abundant in such systems. It is concluded that marginal macrophytes in chalk streams can potentially facilitate the coexistence of high densities of both Gammarus and bullheads by spatially separating predator and prey in summer.

United States, Shellfish, Shellfish Fishing, Shrimp, Predatory animals, Shrimps, Shrimps (Animals)

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