Dissecting geographic variation in population synchrony using the common vole in central Europe as a test bed

Ecology and Evolution
Ana R GouveiaEmil Tkadlec

Abstract

Spatial synchrony of population fluctuations is ubiquitous in nature. Theoretical models suggest that correlated environmental stochasticity, dispersal, and trophic interactions are important promoters of synchrony in nature to leave characteristic signatures of distance-dependent decays in synchrony. Recent refinements of this theory have clarified how distance-decay curves may steepen if local dynamics are governed by different density-dependent feedbacks and how synchrony should vary regionally if the importance and correlation of environmental stochasticity is location-specific. We analysed spatiotemporal data for the common vole, Microtus arvalis from 49 districts in the Czech Republic to examine the pattern of population synchrony between 2000 and 2014. By extending the nonparametric covariation function, we develop a quantitative method that allows a dissection of the effects of distance and additional variables such as altitude on synchrony. To examine the pattern of local synchrony, we apply the noncentered local-indicators of spatial association (ncLISA) which highlights areas with different degrees of synchrony than expected by the region-wide average. Additionally, in order to understand the obtained pattern of loca...Continue Reading

References

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Citations

May 27, 2017·Ecology Letters·Jonathan A WalterDaniel C Reuman
Feb 10, 2019·The Journal of Animal Ecology·Ole Petter Laksforsmo VindstadRolf Anker Ims
May 30, 2019·Proceedings. Biological Sciences·Kyle J HaynesAndrew M Liebhold
May 27, 2020·Proceedings. Biological Sciences·Tad A DallasOtso Ovaskainen
Sep 29, 2019·Scientific Reports·Patrick GiraudouxPierre Delattre

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Methods Mentioned

BETA
dissection

Software Mentioned

R Core Development Team
ncf
LISA

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