Environmental drivers of autumn migration departure decisions in midcontinental mallards.

ABSTRACT:

Background

The timing of autumn migration in ducks is influenced by a range of environmental conditions that may elicit individual experiences and responses from individual birds, yet most studies have investigated relationships at the population level. We used data from individual satellite-tracked mallards (Anas platyrhynchos) to model the timing and environmental drivers of autumn migration movements at a continental scale.

Methods

We combined two sets of location records (2004-2007 and 2010-2011) from satellite-tracked mallards during autumn migration in the Mississippi Flyway, and identified records that indicated the start of long-range (≥ 30 km) southward movements during the migration period. We modeled selection of departure date by individual mallards using a discr

SUBMITTER: Weller FG 

PROVIDER: S-EPMC8729067 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature