Spider-fed Bromeliads: Seasonal And Interspecific Variation In Plant Performance.

dc.creatorGonçalves, Ana Zangirólame
dc.creatorMercier, Helenice
dc.creatorMazzafera, Paulo
dc.creatorRomero, Gustavo Quevedo
dc.date2011-May
dc.date2015-11-27T13:21:08Z
dc.date2015-11-27T13:21:08Z
dc.date.accessioned2018-03-29T01:12:40Z
dc.date.available2018-03-29T01:12:40Z
dc.identifierAnnals Of Botany. v. 107, n. 6, p. 1047-55, 2011-May.
dc.identifier1095-8290
dc.identifier10.1093/aob/mcr047
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/21385776
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199315
dc.identifier21385776
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299548
dc.descriptionSeveral animals that live on bromeliads can contribute to plant nutrition through nitrogen provisioning (digestive mutualism). The bromeliad-living spider Psecas chapoda (Salticidae) inhabits and breeds on Bromelia balansae in regions of South America, but in specific regions can also appear on Ananas comosus (pineapple) plantations and Aechmea distichantha. Using isotopic and physiological methods in greenhouse experiments, the role of labelled ((15)N) spider faeces and Drosophila melanogaster flies in the nutrition and growth of each host plant was evaluated, as well as seasonal variation in the importance of this digestive mutualism. Spiders contributed 0·6 ± 0·2 % (mean ± s.e.; dry season) to 2·7 ± 1 % (wet season) to the total nitrogen in B. balansae, 2·4 ± 0·4 % (dry) to 4·1 ± 0·3 % (wet) in An. comosus and 3·8 ± 0·4 % (dry) to 5 ± 1 % (wet) in Ae. distichantha. In contrast, flies did not contribute to the nutrition of these bromeliads. Chlorophylls and carotenoid concentrations did not differ among treatments. Plants that received faeces had higher soluble protein concentrations and leaf growth (RGR) only during the wet season. These results indicate that the mutualism between spiders and bromeliads is seasonally restricted, generating a conditional outcome. There was interspecific variation in nutrient uptake, probably related to each species' performance and photosynthetic pathways. Whereas B. balansae seems to use nitrogen for growth, Ae. distichantha apparently stores nitrogen for stressful nutritional conditions. Bromeliads absorbed more nitrogen coming from spider faeces than from flies, reinforcing the beneficial role played by predators in these digestive mutualisms.
dc.description107
dc.description1047-55
dc.languageeng
dc.relationAnnals Of Botany
dc.relationAnn. Bot.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectBromelia
dc.subjectCarotenoids
dc.subjectChlorophyll
dc.subjectDrosophila Melanogaster
dc.subjectFeces
dc.subjectNitrogen
dc.subjectPlant Leaves
dc.subjectPlant Proteins
dc.subjectSeasons
dc.subjectSpecies Specificity
dc.subjectSpiders
dc.titleSpider-fed Bromeliads: Seasonal And Interspecific Variation In Plant Performance.
dc.typeArtículos de revistas


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