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Trees adjust nutrient acquisition strategies across tropical forest secondary succession.
Wong, Michelle Y; Wurzburger, Nina; Hall, Jefferson S; Wright, S Joseph; Tang, Wenguang; Hedin, Lars O; Saltonstall, Kristin; van Breugel, Michiel; Batterman, Sarah A.
Afiliação
  • Wong MY; Cary Institute of Ecosystem Studies, Millbrook, NY, 12545, USA.
  • Wurzburger N; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520, USA.
  • Hall JS; Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA.
  • Wright SJ; ForestGEO, Smithsonian Tropical Research Institute, Ancón, 0843-03092, Panama, Panama.
  • Tang W; Smithsonian Tropical Research Institute, Apartado, 0843-03092, Balboa, Panama.
  • Hedin LO; School of Geography and Priestley International Centre for Climate, University of Leeds, Leeds, LS2, UK.
  • Saltonstall K; Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA.
  • van Breugel M; Smithsonian Tropical Research Institute, Apartado, 0843-03092, Balboa, Panama.
  • Batterman SA; ForestGEO, Smithsonian Tropical Research Institute, Ancón, 0843-03092, Panama, Panama.
New Phytol ; 243(1): 132-144, 2024 Jul.
Article em En | MEDLINE | ID: mdl-38742309
ABSTRACT
Nutrient limitation may constrain the ability of recovering and mature tropical forests to serve as a carbon sink. However, it is unclear to what extent trees can utilize nutrient acquisition strategies - especially root phosphatase enzymes and mycorrhizal symbioses - to overcome low nutrient availability across secondary succession. Using a large-scale, full factorial nitrogen and phosphorus fertilization experiment of 76 plots along a secondary successional gradient in lowland wet tropical forests of Panama, we tested the extent to which root phosphatase enzyme activity and mycorrhizal colonization are flexible, and if investment shifts over succession, reflective of changing nutrient limitation. We also conducted a meta-analysis to test how tropical trees adjust these strategies in response to nutrient additions and across succession. We find that tropical trees are dynamic, adjusting investment in strategies - particularly root phosphatase - in response to changing nutrient conditions through succession. These changes reflect a shift from strong nitrogen to weak phosphorus limitation over succession. Our meta-analysis findings were consistent with our field study; we found more predictable responses of root phosphatase than mycorrhizal colonization to nutrient availability. Our findings suggest that nutrient acquisition strategies respond to nutrient availability and demand in tropical forests, likely critical for alleviating nutrient limitation.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fósforo / Árvores / Clima Tropical / Nutrientes / Florestas / Micorrizas / Nitrogênio País/Região como assunto: America central / Panama Idioma: En Revista: New Phytol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Reino Unido
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fósforo / Árvores / Clima Tropical / Nutrientes / Florestas / Micorrizas / Nitrogênio País/Região como assunto: America central / Panama Idioma: En Revista: New Phytol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Reino Unido