Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGiacomini, Henrique C.
dc.creatorDeAngelis, Donald L.
dc.creatorTrexler, Joel C.
dc.creatorPetrere, Miguel
dc.date2014-05-27T11:28:21Z
dc.date2016-10-25T18:43:32Z
dc.date2014-05-27T11:28:21Z
dc.date2016-10-25T18:43:32Z
dc.date2013-02-04
dc.date.accessioned2017-04-06T02:12:41Z
dc.date.available2017-04-06T02:12:41Z
dc.identifierEcological Modelling, v. 251, p. 32-43.
dc.identifier0304-3800
dc.identifierhttp://hdl.handle.net/11449/74554
dc.identifierhttp://acervodigital.unesp.br/handle/11449/74554
dc.identifier10.1016/j.ecolmodel.2012.12.003
dc.identifierWOS:000317258100004
dc.identifier2-s2.0-84872234146
dc.identifierhttp://dx.doi.org/10.1016/j.ecolmodel.2012.12.003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895317
dc.descriptionCommunity ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities characterized by life history and trophic interactions with multiple physiological tradeoffs as constraints on species performance. Simulation experiments were carried out to evaluate the distribution of 6 life history and 4 feeding traits along gradients of resource productivity and prey accessibility. These experiments revealed that traits differ greatly in importance for species sorting along the gradients. Body growth rate emerged as a key factor distinguishing community types and defining patterns of community stability and coexistence, followed by egg size and maximum body size. Dominance by fast-growing, relatively large, and fecund species occurred more frequently in cases where functional responses were saturated (i.e. high productivity and/or prey accessibility). Such dominance was associated with large biomass fluctuations and priority effects, which prevented richness from increasing with productivity and may have limited selection on secondary traits, such as spawning strategies and relative size at maturation. Our results illustrate that the distribution of species traits and the consequences for community dynamics are intimately linked and strictly dependent on how the benefits and costs of these traits are balanced across different conditions. © 2012 Elsevier B.V.
dc.languageeng
dc.relationEcological Modelling
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCommunity dynamics
dc.subjectEnvironmental gradients
dc.subjectFish diversity
dc.subjectLife history
dc.subjectPriority effects
dc.subjectTradeoffs
dc.subjectEnvironmental gradient
dc.subjectCommerce
dc.subjectDynamics
dc.subjectExperiments
dc.subjectFish
dc.subjectProductivity
dc.subjectEcology
dc.subjectassembly rule
dc.subjectbiomass
dc.subjectbody size
dc.subjectcoexistence
dc.subjectcommunity ecology
dc.subjectdominance
dc.subjectecological modeling
dc.subjectegg size
dc.subjectenvironmental conditions
dc.subjectenvironmental gradient
dc.subjectfish
dc.subjectfunctional response
dc.subjectgrowth rate
dc.subjectindividual-based model
dc.subjectlife history
dc.subjectlife history trait
dc.subjectsize at maturity
dc.subjecttrade-off
dc.subjecttrophic interaction
dc.titleTrait contributions to fish community assembly emerge from trophic interactions in an individual-based model
dc.typeOtro


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