Spatial structure in migration routes maintained despite regional convergence among eastern populations of Swainson's Thrushes.

ABSTRACT:

Background

Migratory connectivity links the different populations across the full cycle and across the species range and may lead to differences in survival among populations. Studies on spatial and temporal migratory connectivity along migration routes are rare, especially for small migratory animals.

Methods

We used an automated radio-telemetry array to assess migratory connectivity en route and between early and later stages of the fall migration of the eastern populations of Swainson's Thrush, and to assess the variation of migration pace between consecutive detection from the different receiving stations along the migratory journey. We tracked 241 individuals from across eastern Canada to determine if populations were mixing around the Gulf of Mexico. We also tested the

SUBMITTER: Begin-Marchand C 

PROVIDER: S-EPMC8117314 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature