High-Arctic family planning: earlier spring onset advances age at first reproduction in barnacle geese.

ABSTRACT: Quantifying how key life-history traits respond to climatic change is fundamental in understanding and predicting long-term population prospects. Age at first reproduction (AFR), which affects fitness and population dynamics, may be influenced by environmental stochasticity but has rarely been directly linked to climate change. Here, we use a case study from the highly seasonal and stochastic environment in High-Arctic Svalbard, with strong temporal trends in breeding conditions, to test whether rapid climate warming may induce changes in AFR in barnacle geese, Branta leucopsis. Using long-term mark-recapture and reproductive data (1991-2017), we developed a multi-event model to estimate individual AFR (i.e. when goslings are produced). The annual probability of

SUBMITTER: Fjelldal MA 

PROVIDER: S-EPMC7211454 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature