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Evidence for Rapoport’s rule and latitudinal patterns in the global distribution and diversity of alien bird species by Ellie E. Dyer; David W. Redding; Phillip Cassey; Ben Collen; Tim M. Blackburn is a scholarly article available to read on EtoBox.

What is Evidence for Rapoport’s rule and latitudinal patterns in the global distribution and diversity of alien bird species about?

## 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. ## Location Global. ## Taxon Birds (group Aves). ## Methods Data on locations of introduction and establishment for 355 species with established alien populations were combined with data on native range extents (measured in 5° bands of latitude). Relationships between (a) latitude and introduced and established alien species richness, and (b) latitude and introduced and established alien range extent, were plotted. Linear regressions and paired t‐tests were used to compare latitudinal range extents, midpoints, and limits of each species in its introduced alien range, established alien range and native range. ## Results Latitudes that have more established alien bird species also have had more species introduced in total. The mean total latitudinal extents (i.e. geographic range size) of established alien bird species increase with

Author

Ellie E. Dyer; David W. Redding; Phillip Cassey; Ben Collen; Tim M. Blackburn

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; JSTOR (ISSN 0305-0270)

Published

2020

Language

EN