Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (1) Neotropical Entomology (1) Autor Cacho, Oscar J. (1) Corrente,JE (1) Costa,MIS (1) Godoy,WAC (1) Hester, Susan M. (1) Pheloung, Paul (1) Rosa,GS (1) Silveira,LVA (1) Spring, Daniel (1) Mais... Palavra-chave Stage matrix (2) Blowfly (1) Farm Management (1) Impedance factors (1) Population dynamics (1) Population ecology (1) Search and control (1) Search theory (1) Stochastic model (1) Weed control (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Working or Discussion Paper (1) Ano 2011 (1) 2004 (1) País Brazil (1) United States (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Population dynamics, life stage and ecological modeling in Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae) Neotropical Entomology Rosa,GS; Costa,MIS; Corrente,JE; Silveira,LVA; Godoy,WAC. In this study we investigated the population dynamics of Chrysomya albiceps (Wiedemann) with laboratory experiments, employing survival analysis and stage structure mathematical models, emphasizing survival among life stages. The study also assessed the theoretical influence of density dependence and cannibalism during immature stages, on the population dynamics of the species. The survival curves were similar, indicating that populations of C. albiceps exhibit the same pattern of survival among life stages. A strong nonlinear trend was observed, suggesting density dependence, acting during the first life stages of C. albiceps. The time-series simulations produced chaotic oscillations for all life stages, and the cannibalism did not produce qualitative... Tipo: Info:eu-repo/semantics/article Palavras-chave: Population ecology; Stage matrix; Blowfly. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000200005 Weed Search and Control: Theory and Application AgEcon Cacho, Oscar J.; Spring, Daniel; Pheloung, Paul; Hester, Susan M.. The detectability of invasive organisms influences the costs and benefits of alternative control strategies, and the feasibility of eradicating an infestation. Search theory offers a mathematically rigorous framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. To demonstrate the application of search theory to invasive species control, invasive species detectability is incorporated into a population simulation model. The model is applied to a base set of parameter values that represent reasonable values for a hypothetical weed. The analysis shows the effects of detectability and search time on the duration of an eradication program. Furthermore, for a given level of... Tipo: Working or Discussion Paper Palavras-chave: Search and control; Search theory; Weed control; Stage matrix; Impedance factors; Population dynamics; Stochastic model; Farm Management. Ano: 2004 URL: http://purl.umn.edu/12919 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco