Climate warming may affect the optimal timing of reproduction for migratory geese differently in the low and high Arctic.

ABSTRACT: Rapid climate warming is driving organisms to advance timing of reproduction with earlier springs, but the rate of advancement shows large variation, even among populations of the same species. In this study, we investigated how the rate of advancement in timing of reproduction with a warming climate varies for barnacle goose (Branta leucopsis) populations breeding at different latitudes in the Arctic. We hypothesized that populations breeding further North are generally more time constrained and, therefore, produce clutches earlier relative to the onset of spring than southern populations. Therefore, with increasing temperatures and a progressive relief of time constraint, we expected latitudinal differences to decrease. For the years 2000-2016, we determined the onset of spring from snow

SUBMITTER: Lameris TK 

PROVIDER: S-EPMC6853861 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature