Harvesting wildlife affected by climate change: a modelling and management approach for polar bears.

ABSTRACT: The conservation of many wildlife species requires understanding the demographic effects of climate change, including interactions between climate change and harvest, which can provide cultural, nutritional or economic value to humans.We present a demographic model that is based on the polar bear Ursus maritimus life cycle and includes density-dependent relationships linking vital rates to environmental carrying capacity (K). Using this model, we develop a state-dependent management framework to calculate a harvest level that (i) maintains a population above its maximum net productivity level (MNPL; the population size that produces the greatest net increment in abundance) relative to a changing K, and (ii) has a limited negative effect on population persistence.Our de

SUBMITTER: Regehr EV 

PROVIDER: S-EPMC5637955 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature