Drivers of migrant passerine composition at stopover islands in the western Mediterranean.

ABSTRACT: Clues used by migrant birds to select sites for stopover are much less known than their reasons for leaving. Habitat characteristics and geographical location may affect the decision to use an island as a stopover site in different ways for different species. Thus, abundance and composition of migrants may be expected to differ between islands. Using standardized ringing from 9 western Mediterranean islands we evaluate drivers of abundance of trans-Saharan migrant passerines, specifically the role of species continental abundance, island characteristics and geographical location. Although continental abundance is a main driver of migrant composition on all islands migrant composition differs between them. Redundancy analysis and species response models revealed that the main drivers were d

SUBMITTER: Lopez-Iborra GM 

PROVIDER: S-EPMC8861067 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature