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The reintroduction of gray wolves to Yellowstone National Park (YNP) provides a natural experiment regarding the effects of top predators on scavenger species. Fieldwork on the Northern Range of Yellowstone indicates that wolves facilitate carrion acquisition by scavengers, but it is unclear whether this represents a transient or permanent effect of wolf reintroduction. Here we present a wolf-elk...
Count data were collected from available studies on the European grey partridge (Perdix perdix) populations with at least 3 years of consecutive data. According to habitat characteristics, the period of study and the management practice the data were combined in two main subsets: the British populations from 1930 to the end of the 1960's and the ''declining'' continental populations from 1970 to the...
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