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Trade-off between seed dispersal in space and time.
Chen, Si-Chong; Poschlod, Peter; Antonelli, Alexandre; Liu, Udayangani; Dickie, John B.
Afiliación
  • Chen SC; Royal Botanic Gardens Kew, Wellcome Trust Millennium Building, Wakehurst, West Sussex, RH17 6TN, UK.
  • Poschlod P; Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Universitätsstrasse 31, Regensburg, 93040, Germany.
  • Antonelli A; Gothenburg Global Biodiversity Centre and Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, Göteborg, SE-405 30, Sweden.
  • Liu U; Royal Botanic Gardens Kew, Richmond, Surrey, TW9 3AE, UK.
  • Dickie JB; Royal Botanic Gardens Kew, Wellcome Trust Millennium Building, Wakehurst, West Sussex, RH17 6TN, UK.
Ecol Lett ; 23(11): 1635-1642, 2020 Nov.
Article en En | MEDLINE | ID: mdl-32881372
Seed movement and delayed germination have long been thought to represent alternative risk-spreading strategies, but current evidence covers limited scales and yields mixed results. Here we present the first global-scale test of a negative correlation between dispersal and dormancy. The result demonstrates a strong and consistent pattern that species with dormant seeds have reduced spatial dispersal, also in the context of life-history traits such as seed mass and plant lifespan. Long-lived species are more likely to have large, non-dormant seeds that are dispersed far. Our findings provide robust support for the theoretical prediction of a dispersal trade-off between space and time, implying that a joint consideration of risk-spreading strategies is imperative in studying plant life-history evolution. The bet-hedging patterns in the dispersal-dormancy correlation and the associated reproductive traits have implications for biodiversity conservation, via prediction of which plant groups would be most impacted in the changing era.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Dispersión de Semillas Tipo de estudio: Prognostic_studies Idioma: En Revista: Ecol Lett Año: 2020 Tipo del documento: Article

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Dispersión de Semillas Tipo de estudio: Prognostic_studies Idioma: En Revista: Ecol Lett Año: 2020 Tipo del documento: Article