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<p>Subtropical forests are experiencing rising temperatures, the effect of which on radial growth remains under debate; specifically, whether warming conditions enhance or limit forest productivity. Taking advantage of the coexistence of two pine species in a Mexican subtropical ecosystem, each with a different conservation status, this study evaluated productivity in terms of Basal Area Increment (BAI) and climate sensitivity. The results revealed differential responses: <i>Pinus jaliscana</i>, an endangered species in fertile mesic subtropical environment, exhibited higher productivity and was negatively affected by winter maximum temperatures (Tmax) while responding positively to summer precipitation (PP). In contrast, <i>Pinus oocarpa</i>, a plastic species widely distributed in Mexico benefited from high Tmax during the summer but was negatively affected by summer rainfall. Neither species showed sensitivity to the Standardized Precipitation Evapotranspiration Index (SPEI), a widely used drought indicator. Although the influence of conservation status requires further consideration, these findings provide a foundation for continued monitoring and the development of conservation and management strategies for these species in light of projected warming scenarios.</p>

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Contrasting pine species of different conservation status coexisting in a subtropical environment exhibit inter-specific climate sensitivity

  • 期刊论文

  • 发表日期：

    2025年8月21日

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  • Eduardo Daniel Vivar-Vivar,
  • Marín Pompa-García,
  • Martin Alfonso Mendoza-B

摘要

Subtropical forests are experiencing rising temperatures, the effect of which on radial growth remains under debate; specifically, whether warming conditions enhance or limit forest productivity. Taking advantage of the coexistence of two pine species in a Mexican subtropical ecosystem, each with a different conservation status, this study evaluated productivity in terms of Basal Area Increment (BAI) and climate sensitivity. The results revealed differential responses: Pinus jaliscana, an endangered species in fertile mesic subtropical environment, exhibited higher productivity and was negatively affected by winter maximum temperatures (Tmax) while responding positively to summer precipitation (PP). In contrast, Pinus oocarpa, a plastic species widely distributed in Mexico benefited from high Tmax during the summer but was negatively affected by summer rainfall. Neither species showed sensitivity to the Standardized Precipitation Evapotranspiration Index (SPEI), a widely used drought indicator. Although the influence of conservation status requires further consideration, these findings provide a foundation for continued monitoring and the development of conservation and management strategies for these species in light of projected warming scenarios.