The effect of climatic forcing on population synchrony and genetic structuring of the Canadian lynx
AUTOR(ES)
Stenseth, Nils Chr.
FONTE
National Academy of Sciences
RESUMO
The abundance of Canadian lynx follows 10-year density fluctuations across the Canadian subcontinent. These cyclic fluctuations have earlier been shown to be geographically structured into three climatic regions: the Atlantic, Continental, and Pacific zones. Recent genetic evidence revealed an essentially similar spatial structuring. Introducing a new population model, the “climate forcing of ecological and evolutionary patterns” model, we link the observed ecological and evolutionary patterns. Specifically, we demonstrate that there is greater phase synchrony within climatic zones than between them and show that external climatic forcing may act as a synchronizer. We simulated genetic drift by using data on population dynamics generated by the climate forcing of ecological and evolutionary patterns model, and we demonstrate that the observed genetic structuring can be seen as an emerging property of the spatiotemporal ecological dynamics.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=395922Documentos Relacionados
- Population regulation in snowshoe hare and Canadian lynx: Asymmetric food web configurations between hare and lynx
- From patterns to processes: Phase and density dependencies in the Canadian lynx cycle
- The Effect of Genetic Linkage on the Mean Fitness of a Population
- Population genetic structuring in pacu (Piaractus mesopotamicus) across the Paraná-Paraguay basin: evidence from microsatellites
- A genetic record of population isolation in pocket gophers during Holocene climatic change