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Environmental issues

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Effects of cognitive abilities on metapopulation connectivity

Article Abstract:

A study of the effects of three cognitive strategies, namely blind strategy, near-sighted strategy and far-sighted strategy on metapopulation connectivity is presented by using individual-based simulations. Simulations show that the blind strategy provides the best overall connectivity and the important effects of the cognitive ability of dispersers on the connectivity, dynamics and genetics of metapopulations are indicated.

Meta-analysis

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Estimation of local extinction rates when species detectability covaries with extinction probability: Is it a problem?

Article Abstract:

Simulations are used over a wide range of parameters to show that an estimator of local extinction rate performs reasonably well. A potentially important biological bias, such as the covariance effect, improves the estimation for small efforts, without inducing a supplementary overestimation when these sampling efforts are high.

Extinction (Biology)

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Food availability dictates the timing of parturition in insectivorous mouse-eared bats

Article Abstract:

Research on Myotis myotis and Myotis blythii bats shows a correlation between bat fertility and the availability of the beetle species that are their primary source of food, as opposed to a link between fertility and climate.

Switzerland, Statistical Data Included, Physiological aspects, Environmental aspects, Bats, Bats (Animals), Food supply, Parturition, Parturition (Animals)

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