skip to main content
Idioma:

Rapid upslope shifts in New Guinean birds illustrate strong distributional responses of tropical montane species to global warming

Freeman, Benjamin G. ; Freeman, Alexandra M. Class

Proceedings of the National Academy of Sciences - PNAS, 2014-03, Vol.111 (12), p.4490-4494 [Periódico revisado por pares]

United States: National Academy of Sciences

Texto completo disponível

Citações Citado por
  • Título:
    Rapid upslope shifts in New Guinean birds illustrate strong distributional responses of tropical montane species to global warming
  • Autor: Freeman, Benjamin G. ; Freeman, Alexandra M. Class
  • Assuntos: Animals ; Biodiversity ; Biodiversity conservation ; Biological Sciences ; Birds ; Climate change ; Extinct species ; Global Warming ; Montane forests ; Mountains ; New Guinea ; Population Dynamics ; Species ; Species extinction ; Temperature effects ; Topographical elevation ; Tropical climates
  • É parte de: Proceedings of the National Academy of Sciences - PNAS, 2014-03, Vol.111 (12), p.4490-4494
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Edited by Jared M. Diamond, University of California, Los Angeles, CA, and approved January 21, 2014 (received for review September 25, 2013)
    Author contributions: B.G.F. and A.M.C.F. designed research; B.G.F. and A.M.C.F. performed research; B.G.F. analyzed data; and B.G.F. and A.M.C.F. wrote the paper.
  • Descrição: Temperate-zone species have responded to warming temperatures by shifting their distributions poleward and upslope. Thermal tolerance data suggests that tropical species may respond to warming temperatures even more strongly than temperate-zone species, but this prediction has yet to be tested. We addressed this data gap by conducting resurveys to measure distributional responses to temperature increases in the elevational limits of the avifaunas of two geographically and faunally independent New Guinean mountains, Mt. Karimui and Karkar Island, 47 and 44 y after they were originally surveyed. Although species richness is roughly five times greater on mainland Mt. Karimui than oceanic Karkar Island, distributional shifts at both sites were similar: upslope shifts averaged 113 m (Mt. Karimui) and 152 m (Karkar Island) for upper limits and 95 m (Mt. Karimui) and 123 m (Karkar Island) for lower limits. We incorporated these results into a metaanalysis to compare distributional responses of tropical species with those of temperate-zone species, finding that average upslope shifts in tropical montane species match local temperature increases significantly more closely than in temperate-zone montane species. That tropical species appear to be strong responders has global conservation implications and provides empirical support to hitherto untested models that predict widespread extinctions in upper-elevation tropical endemics with small ranges.
  • Editor: United States: National Academy of Sciences
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.