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Journal Articles Population Ecology Year : 2012

Spatial heterogeneity in mortality and its impact on the population dynamics of Eurasian woodcocks

Guillaume Péron
Yves Ferrand
  • Function : Author
Rémi Choquet
  • Function : Author
Roger Pradel
  • Function : Author
François Gossmann
  • Function : Author
Claudine Bastat
  • Function : Author
Michel Guénézan
  • Function : Author
Isabelle Bauthian
  • Function : Author
Romain Julliard

Abstract

Spatial heterogeneity, especially in mortality risk, is a major factor shaping population dynamics. Here we study the impacts of spatial heterogeneity in hunting pressure on the demography of Eurasian woodcock Scolopax rusticola, a relatively long-lived migratory game bird. We develop capture-recapture-recovery models in which both seasonality and spatial variation in hunting pressure are accounted for, and fit them to individual-based data collected across the French wintering range ([44000 banded individuals) as well as recoveries from spring stopovers and breeding grounds in Europe. Our results quantify spatial variation in survival probability in the wintering areas. They highlight the role of source-sink dynamics involving juvenile settlement decisions, as well as the importance of mortality outside the winter quarters. We also discuss the impact of spatial heterogeneity for demographic parameter estimation and data collection at the range scale.
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Dates and versions

hal-03502440 , version 1 (25-12-2021)

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Guillaume Péron, Yves Ferrand, Rémi Choquet, Roger Pradel, François Gossmann, et al.. Spatial heterogeneity in mortality and its impact on the population dynamics of Eurasian woodcocks. Population Ecology, 2012, 54, pp.305 - 312. ⟨10.1007/s10144-012-0309-6⟩. ⟨hal-03502440⟩

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