Fire favors sexual precocity in a Mediterranean pine

نویسندگان

چکیده

Wildfires are a natural disturbance in many ecosystems. Consequently, plant species have acquired traits that allow them to resist and regenerate an environment with recurrent fires. A key trait fire-prone ecosystems is the age at first reproduction (maturity age); populations of non-resprouting cannot persist when fire interval shorter than this age. Maturity variable among individuals, so we hypothesized short intervals select for early seed production (precocity). We selected 13 plots different regimes eastern Spain, all dominated by Pinus halepensis (a serotinous pine species). Then, evaluated size canopy bank each individual tree. Our results show significant effect regime on onset species, suggesting selection towards higher precocity subject intervals. Due precocity, pines stored more cones therefore, increased their potential post-fire. provide field evidence can act as driver precocity. Being precocious environments adaptive because it increases probability having next arrives.

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ژورنال

عنوان ژورنال: Oikos

سال: 2022

ISSN: ['0717-327X', '0718-4670']

DOI: https://doi.org/10.1111/oik.09373