Interspecific competition between alien Pallas’s squirrels and Eurasian red squirrels reduces density of the native species

Abstract

When alien species introduced into a new environment have a strong niche overlap with ecologically similar native species, interspecific competition can cause a decrease in abundance and distribution of native species. Pallas’s squirrel (Callosciurus erythraeus) was introduced in Northern Italy where it currently co-occurs with native Eurasian red squirrels… (More)
DOI: 10.1007/s10530-016-1310-3

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