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Species richness changes lag behind climate change.

Research output: Contribution to journalJournal article

Published

  • Rosa Menéndez
  • Adela González Megías
  • Jane K. Hill
  • Brigitte Braschler
  • Stephen G. Willis
  • Yvonne Collingham
  • Richard Fox
  • David B. Roy
  • Chris D. Thomas
Journal publication date22/06/2006
JournalProceedings of the Royal Society B: Biological Sciences
Journal number1593
Volume273
Number of pages6
Pages1465-1470
Original languageEnglish

Abstract

Species-energy theory indicates that recent climate warming should have driven increases in species richness in cool and species-poor parts of the Northern Hemisphere. We confirm that the average species richness of British butterflies has increased since 1970–82, but much more slowly than predicted from changes of climate: on average, only one-third of the predicted increase has taken place. The resultant species assemblages are increasingly dominated by generalist species that were able to respond quickly. The time lag is confirmed by the successful introduction of many species to climatically suitable areas beyond their ranges. Our results imply that it may be decades or centuries before the species richness and composition of biological communities adjusts to the current climate.