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Spatial variability in defoliation dynamics during spruce budworm outbreaks: A landscape perspective

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  • Osse, Olaloudé Judicaël Franck
  • Marchand, Philippe
  • Girona, Miguel Montoro

Abstract

Our study explored the spatiotemporal dynamics of spruce budworm (SBW) defoliation in Quebec’s boreal forests, highlighting how climatic factors, historical defoliation, and landscape heterogeneity intersect. SBW outbreaks are a major disturbance in these ecosystems, with significant ecological and economic repercussions—underscoring the need to understand the mechanisms that drive them. Although previous research has linked warming temperatures and past defoliation patterns to more severe outbreaks, their localized effects remain poorly characterized. Our aim is to clarify these localized processes and support more targeted forest management strategies.

Suggested Citation

  • Osse, Olaloudé Judicaël Franck & Marchand, Philippe & Girona, Miguel Montoro, 2025. "Spatial variability in defoliation dynamics during spruce budworm outbreaks: A landscape perspective," Ecological Modelling, Elsevier, vol. 510(C).
    • Handle: RePEc:eee:ecomod:v:510:y:2025:i:c:s0304380025003230
    DOI: 10.1016/j.ecolmodel.2025.111337
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