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Effects of an invasive predator cascade to plants via mutualism disruption.
Rogers, Haldre S; Buhle, Eric R; HilleRisLambers, Janneke; Fricke, Evan C; Miller, Ross H; Tewksbury, Joshua J.
Afiliación
  • Rogers HS; Department of Ecology, Evolution, and Organismal Biology, 251 Bessey Hall, Iowa State University, Ames, Iowa 50011, USA.
  • Buhle ER; Department of Biology, University of Washington, Seattle, Washington 98195, USA.
  • HilleRisLambers J; Department of BioSciences, Rice University, Houston, Texas 77005, USA.
  • Fricke EC; Northwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Seattle, Washington 98112, USA.
  • Miller RH; Department of Biology, University of Washington, Seattle, Washington 98195, USA.
  • Tewksbury JJ; Department of Ecology, Evolution, and Organismal Biology, 251 Bessey Hall, Iowa State University, Ames, Iowa 50011, USA.
Nat Commun ; 8: 14557, 2017 03 08.
Article en En | MEDLINE | ID: mdl-28270682
Invasive vertebrate predators are directly responsible for the extinction or decline of many vertebrate species, but their indirect impacts often go unmeasured, potentially leading to an underestimation of their full impact. When invasives extirpate functionally important mutualists, dependent species are likely to be affected as well. Here, we show that the invasive brown treesnake, directly responsible for the extirpation of forest birds from the island of Guam, is also indirectly responsible for a severe decline in plant recruitment as a result of disrupting the fruit-frugivore mutualism. To assess the impact of frugivore loss on plants, we compare seed dispersal and recruitment of two fleshy-fruited tree species on Guam and three nearby islands with intact disperser communities. We conservatively estimate that the loss of frugivorous birds caused by the brown treesnake may have caused a 61-92% decline in seedling recruitment. This case study highlights the potential for predator invasions to cause indirect, pervasive and easily overlooked interaction cascades.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta Predatoria / Colubridae / Fenómenos Fisiológicos de las Plantas / Especies Introducidas Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta Predatoria / Colubridae / Fenómenos Fisiológicos de las Plantas / Especies Introducidas Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido