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The spatial dimension in population fluctuations

Ranta1, Kaitala, Lundberg

  • 1E. Ranta, Integrative Ecology Unit, Division of Population Biology, Department of Ecology and Systematics, University of Helsinki, Post Office Box 17 (Arkadiankatu 7), FIN-00014 Helsinki, Finland. V. Kaitala, Department of Biological and Environm.

Science (New York, N.Y.)
|December 5, 1997
PubMed
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Canadian lynx populations exhibit large-scale spatial synchrony, with fluctuations drifting in and out of phase over time. This aligns with theoretical predictions of spatially-linked population dynamics and ecological interactions.

Area of Science:

  • Ecology
  • Population Dynamics
  • Mathematical Biology

Background:

  • Theoretical models predict complex spatial structures in coupled populations.
  • These structures can arise from external disturbances or internal population interactions.

Purpose of the Study:

  • To investigate spatial synchrony in Canadian lynx population fluctuations.
  • To compare empirical data with predictions from spatially-linked population models.

Main Methods:

  • Analysis of long-term Canadian lynx population data from eight provinces.
  • Examination of spatial synchrony and phase dynamics in population fluctuations.

Main Results:

  • Observed large-scale spatial synchrony in lynx population dynamics across provinces.

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  • Synchrony was not time-invariant; populations drifted in and out of phase.

    • Conclusions:

    • Empirical observations support theoretical predictions of spatially-linked population models.
    • The findings contribute to contemporary understanding of population ecology and spatial dynamics.