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Impacts of passage migrant songbirds on behaviour and habitat use of resident Sardinian Warblers Sylvia melanocephala in Gibraltar

Keith J. Bensusan, Auteur ; Bryan Shorrocks, Auteur ; Keith C. Hamer, Auteur

Dans Ibis (153(3) JUL 2011)

Explanations for the coexistence of migratory and sedentary (resident) birds are much debated: some authors have suggested that migrants make use of surplus resources not exploited by residents, whereas others have recorded ecological shifts in [...]

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