Does group foraging promote efficient exploitation of resources?

Article Abstract:

Simulations to explore the costs and benefits of exploiting non-renewing resources by foragers searching for food patches independently or in groups in habitats with different types of resources distribution. Group foragers exploited resources in a patch more quickly and therefore spent proportionately more time locating new patches.

Habitat (Ecology), Habitats

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Functional responses in polar bear habitat selection

Article Abstract:

Habitat selection occurs when there is disproportional use of some habitats (e.g. with abundant forage) over others (e.g. safer retreat habitats with little forage). In a study on habitat selection, polar bears showed season and population specific functional responses in habitat use.

Analysis, Habitat selection, Polar bear

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Adaptive regulation of body reserves in reindeer, Rangifer tarandus: A feeding experiment

Article Abstract:

Experimental evidence is presented for adaptive body mass regulation in female semi-domesticated reindeer. The results suggest a close relationship between body weight and intrinsic individual qualities.

Reindeer, Animal feeding behaviour, Animal feeding behavior

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