Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/63286
Type: Artigo de periódico
Title: Bromeliad-living spiders improve host plant nutrition and growth
Author: Romero, GQ
Mazzafera, P
Vasconcellos-Neto, J
Trivelin, PCO
Abstract: Although bromeliads are believed to obtain nutrients from debris deposited by animals in their rosettes, there is little evidence to support this assumption. Using stable isotope methods, we found that the Neotropical jumping spider Psecas chapoda (Salticidae), which lives strictly associated with the terrestrial bromeliad Bromelia balansae, contributed 18% of the total nitrogen of its host plant in a greenhouse experiment. In a one-year field experiment, plants with spiders produced leaves 15% longer than plants from which the spiders were excluded. This is the first study to show nutrient provisioning in a spider-plant system. Because several animal species live strictly associated with bromeliad rosettes, this type of facultative mutualism involving the Bromeliaceac may be more common than previously thought.
Subject: animal-plant interaction
Bromelia balansae
Bromeliaceae
digestive mutualism
jumping spider
nitrogen fluxes
nutrient provisioning
Psecas chapoda
Salticidae
spider-plant mutualism
stable isotope N-15
Country: EUA
Editor: Ecological Soc Amer
Rights: aberto
Identifier DOI: 10.1890/0012-9658(2006)87[803:BSIHPN]2.0.CO;2
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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