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	Provedor de dados ArchiMer (2) Autor Trenkel, Verena (2) Dambacher, Jeffrey M. (1) Duplisea, Daniel E. (1) Frisk, Michael G. (1) Hosack, Geoffrey R. (1) Palavra-chave Hyperstability (2) Abundance-occupancy relationships (1) Adaptive Metropolis (1) Bayes factors (1) Commercial catchability (1) Community ecology (1) DIC (1) Exploitation (1) Finfish (1) Fishing (1) Georges Bank (1) Gompertz model (1) Habitat fragmentation (1) Kalman filter (1) Model comparison (1) Reactivity (1) Resilience (1) Shellfish (1) Small pelagic fishes (1) Stability (1) Mais... Tipo do documento Text (2) Ano 2013 (1) 2011 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Exploring the abundance-occupancy relationships for the Georges Bank finfish and shellfish community from 1963 to 2006 ArchiMer Frisk, Michael G.; Duplisea, Daniel E.; Trenkel, Verena. Abundance-occupancy (A-O) patterns were explored temporally and spatially for the Georges Bank finfish and shellfish community to evaluate long-term trends in the assemblage structure and to identify anthropogenic and environmental drivers impacting the ecosystem. Analyses were conducted for 32 species representing the assemblage from 1963 to 2006 using data from the National Marine Fisheries Service's annual autumn bottom trawl survey. For individual species, occupancy was considered the proportion of stations with at least one individual present, and abundance was estimated as the mean annual number of fish captured per station. Intraspecific relationships were estimated to provide information on utilization of space by a species. Multispecies... Tipo: Text Palavras-chave: Abundance-occupancy relationships; Commercial catchability; Community ecology; Exploitation; Finfish; Fishing; Georges Bank; Habitat fragmentation; Hyperstability; Resilience; Shellfish. Ano: 2011 URL: http://archimer.ifremer.fr/doc/00033/14397/14043.pdf The relative importance of environmental stochasticity, interspecific interactions, and observation error: Insights from sardine and anchovy landings ArchiMer Hosack, Geoffrey R.; Trenkel, Verena; Dambacher, Jeffrey M.. Long-term time series of sardine and anchovy landings often suggest negative dependence between these species, and an array of mechanisms have been proposed as explanations. We reduce these propositions to four basic hypotheses of (1) independence, (2) correlated process noise, (3) interspecific interactions, and (4) correlated observational error. We use a Bayesian approach to develop priors for parsimonious state space models with both process noise and observation error that represent each of these hypotheses, and apply this approach to five long-term time series of landings collected from the Pacific and Atlantic Oceans. Model comparison criteria suggest that the hypothesis of correlated process noise has the broadest support, where the temporal... Tipo: Text Palavras-chave: Adaptive Metropolis; Bayes factors; DIC; Gompertz model; Hyperstability; Kalman filter; Model comparison; Reactivity; Small pelagic fishes; Stability. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00159/27072/26066.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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