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Tropical cyclone winds and precipitation stimulate cone production in the masting species longleaf pine (Pinus palustris).
Cannon, Jeffery B; Rutledge, Brandon T; Puhlick, Joshua J; Willis, John L; Brockway, Dale G.
Afiliação
  • Cannon JB; The Jones Center at Ichauway, Newton, GA, 39870, USA.
  • Rutledge BT; The Jones Center at Ichauway, Newton, GA, 39870, USA.
  • Puhlick JJ; The Jones Center at Ichauway, Newton, GA, 39870, USA.
  • Willis JL; USDA Forest Service, Southern Research Station, Auburn, AL, 36849, USA.
  • Brockway DG; USDA Forest Service, Southern Research Station, Auburn, AL, 36849, USA.
New Phytol ; 242(1): 289-301, 2024 Apr.
Article em En | MEDLINE | ID: mdl-38009313
Many trees exhibit masting - where reproduction is temporally variable and synchronous over large areas. Several dominant masting species occur in tropical cyclone (TC)-prone regions, but it is unknown whether TCs correlate with mast seeding. We analyzed long-term data (1958-2022) to test the hypothesis that TCs influence cone production in longleaf pine (Pinus palustris). We integrate field observations, weather data, satellite imagery, and hurricane models to test whether TCs influence cone production via: increased precipitation; canopy density reduction; and/or mechanical stress from wind. Cone production was 31% higher 1 yr after hurricanes and 71% higher after 2 yr, before returning to baseline levels. Cyclone-associated precipitation was correlated with increased cone production in wet years and cone production increased after low-intensity winds (≤ 25 m s-1 ) but not with high-intensity winds (> 25 m s-1 ). Tropical cyclones may stimulate cone production via precipitation addition, but high-intensity winds may offset any gains. Our study is the first to support the direct influence of TCs on reproduction, suggesting a previously unknown environmental correlate of masting, which may occur in hurricane-prone forests world-wide.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pinus / Tempestades Ciclônicas Idioma: En Revista: New Phytol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pinus / Tempestades Ciclônicas Idioma: En Revista: New Phytol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos