A1 Refereed original research article in a scientific journal
The range margins of northern birds shift polewards
Authors: Brommer JE
Publisher: FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD
Publication year: 2004
Journal:: Annales Zoologici Fennici
Journal name in source: ANNALES ZOOLOGICI FENNICI
Journal acronym: ANN ZOOL FENN
Volume: 41
Issue: 2
First page : 391
Last page: 397
Number of pages: 7
ISSN: 0003-455X
Abstract
The changes in range margins of birds breeding in Finland was analysed from published atlas data for a 12-year period (1974-1979 to 1986-1989). The change in range margin was statistically corrected for changes in species' distribution using linear regression. For species predominantly occurring in southern Finland (n = 116), the expected range margin shift, if their distribution would not have changed, was 18.8 km northwards. Northerly species (n = 34) showed no such significant range margin shift. A similar result was found earlier for UK birds. Recent range margin shifts in birds therefore seem to be a general phenomenon, which may be related to climate change.
The changes in range margins of birds breeding in Finland was analysed from published atlas data for a 12-year period (1974-1979 to 1986-1989). The change in range margin was statistically corrected for changes in species' distribution using linear regression. For species predominantly occurring in southern Finland (n = 116), the expected range margin shift, if their distribution would not have changed, was 18.8 km northwards. Northerly species (n = 34) showed no such significant range margin shift. A similar result was found earlier for UK birds. Recent range margin shifts in birds therefore seem to be a general phenomenon, which may be related to climate change.
UTU Research Portal