Aim To quantify global latitudinal patterns in the distributions of alien bird species to assess whether these species conform to Rapoport’s rule (i.e. show a positive latitudinal gradient in latitudinal… Click to show full abstract
Aim To quantify global latitudinal patterns in the distributions of alien bird species to assess whether these species conform to Rapoport’s rule (i.e. show a positive latitudinal gradient in latitudinal range extent), and to test whether where species are introduced, and where species fail to establish, may help to drive observed patterns.
               
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