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Fragmentation modulates the response of dichotomous landscapes to fire and seed dispersal

Author

Listed:
  • Gowda, Juan H.
  • Tiribelli, Florencia
  • Mermoz, Mónica
  • Kitzberger, Thomas
  • Morales, Juan Manuel

Abstract

Contagious processes such as fire and seed dispersal may affect landscape structure, composition and dynamics, and are in turn modulated by structural landscape attributes. Vegetation-fire self-reinforcing processes that lead to the dominance of either pyrophyllic or pyrophobic vegetation are well documented worldwide, but it remains unclear how the interaction between spatial aggregation and contagious processes influences the dynamics of dichotomous landscapes. We subjected landscapes composed by patches of pyrophyllic and pyrophobic cells to increasing frequencies of random ignitions to assess which spatial configuration may promote long-term coexistence (i.e. resilient landscapes), and which ones may lead to dominance by either community (i.e. alternative states).

Suggested Citation

  • Gowda, Juan H. & Tiribelli, Florencia & Mermoz, Mónica & Kitzberger, Thomas & Morales, Juan Manuel, 2019. "Fragmentation modulates the response of dichotomous landscapes to fire and seed dispersal," Ecological Modelling, Elsevier, vol. 392(C), pages 22-30.
    • Handle: RePEc:eee:ecomod:v:392:y:2019:i:c:p:22-30
    DOI: 10.1016/j.ecolmodel.2018.10.014
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    References listed on IDEAS

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    1. Morales, Juan Manuel & Mermoz, Mónica & Gowda, Juan Haridas & Kitzberger, Thomas, 2015. "A stochastic fire spread model for north Patagonia based on fire occurrence maps," Ecological Modelling, Elsevier, vol. 300(C), pages 73-80.
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