Habitat loss on the breeding grounds is a major contributor to population declines in a long-distance migratory songbird.

ABSTRACT: Many migratory species are declining and for most, the proximate causes of their declines remain unknown. For many long-distance Neotropical migratory songbirds, it is assumed that habitat loss on breeding or non-breeding grounds is a primary driver of population declines. We integrated data collected from tracking technology, community science and remote sensing data to quantify migratory connectivity (MC), population trends and habitat loss. We quantified the correlation between forest change throughout the annual cycle and population declines of a long-distance migratory songbird, the Connecticut warbler (Oporornis agilis, observed decline: -8.99% yr^-1). MC, the geographic link between populations during two or more phases of the annual cycle, was stronger between bree

SUBMITTER: Hallworth MT 

PROVIDER: S-EPMC8079992 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature