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Avian predation on a population of the water vole arvicola terrestris during a seasonal cycle

, : Avian predation on a population of the water vole arvicola terrestris during a seasonal cycle. Natura Jutlandica 19: 61-66

Predation on water voles was estimated by collecting skulls and by calculation of demand for rodent biomass of the predators present. When compared to estimates of vole density, predation accounted for about 1/3 of the winter mortality. Predation increased in periods when the population was in other ways under stress.


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