Metapopulation dynamics over 25 years of a beetle, Osmoderma eremita, inhabiting hollow oaks.

ABSTRACT: Osmoderma eremita is a species of beetle that inhabits hollows in ancient trees, which is a habitat that has decreased significantly during the last century. In southeastern Sweden, we studied the metapopulation dynamics of this beetle over a 25 year period, using capture-mark-recapture. The metapopulation size had been rather stable over time, but in most of the individual trees there had been a positive or negative trend in population development. The probability of colonisation was higher in well-connected trees with characteristics reflecting earlier successional stages, and the probability of extinction higher in trees with larger diameter (i.e. in later successional stages), which is expected from a habitat-tracking metapopulation. The annual tree mortality and fall rates (1.1% and 0

SUBMITTER: Lindman L 

PROVIDER: S-EPMC7683440 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature