Phase coupling and synchrony in the spatiotemporal dynamics of muskrat and mink populations across Canada

Proceedings of the National Academy of Sciences of the United States of America
D T HaydonP E Greenwood

Abstract

Population ecologists have traditionally focused on the patterns and causes of population variation in the temporal domain for which a substantial body of practical analytic techniques have been developed. More recently, numerous studies have documented how populations may fluctuate synchronously over large spatial areas; analyses of such spatially extended time-series have started to provide additional clues regarding the causes of these population fluctuations and explanations for their synchronous occurrence. Here, we report on the development of a phase-based method for identifying coupling between temporally coincident but spatially distributed cyclic time-series, which we apply to the numbers of muskrat and mink recorded at 81 locations across Canada. The analysis reveals remarkable parallel clines in the strength of coupling between proximate populations of both species--declining from west to east--together with a corresponding increase in observed synchrony between these populations the further east they are located.

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Citations

Nov 15, 2002·Nature·Eric Post, Mads C Forchhammer
Feb 8, 2005·Proceedings. Biological Sciences·Erkki KorpimäkiTero Klemola
Apr 14, 2004·Emerging Infectious Diseases·Cécile ViboudAntoine Flahault
Jun 16, 2004·Proceedings of the National Academy of Sciences of the United States of America·Eric Post, Mads C Forchhammer
Apr 7, 2004·Proceedings of the National Academy of Sciences of the United States of America·Nils Chr StensethKjetill S Jakobsen
May 7, 2014·Proceedings of the National Academy of Sciences of the United States of America·Michael H Cortez, Joshua S Weitz
Jun 21, 2017·Ecology Letters·Frédéric BarraquandRebecca C Tyson
Sep 7, 2004·Proceedings. Biological Sciences·Michael J Crawley, Susan L Brown
May 17, 2013·Physical Review Letters·Justus T C Schwabedal, Arkady Pikovsky
Aug 12, 2016·Ecological Applications : a Publication of the Ecological Society of America·Angela K FullerMatthew P Hare
Jun 7, 2005·American Journal of Epidemiology·Hélène BroutinBernard Cazelles
Aug 24, 2002·Science·Nils Chr StensethMauricio Lima

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