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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia. |
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Data corrente: |
17/07/1997 |
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Data da última atualização: |
01/08/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SUJII, E. R.; FONTES, E. M. G.; PIRES, C. S. S.; TEIXEIRA, C. A. D. |
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Afiliação: |
EDISON RYOITI SUJII, CENARGEN; ELIANA MARIA GOUVEIA FONTES, CENARGEN; CARMEN SILVIA SOARES PIRES, CENARGEN; CESAR AUGUSTO DOMINGUES TEIXEIRA, CPAF-RO. |
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Título: |
Application of multivariate analysis for the selection of candidates for biological control agents. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Biological Control, v. 7, n. 3, p. 288-292, 1996. |
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DOI: |
https://doi.org/10.1006/bcon.1996.0096 |
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Idioma: |
Inglês |
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Conteúdo: |
A survey of natural enemies ofSenna obtusifolia(Leguminosae: Cesalpinaceae) was made in 46 localities in Brazil. Twenty-one preselected insect species were used in a multivariate analysis in a search for potential biocontrol agents, based on frequency of occurrence of each species, degree of insect/host association, and damage level. Insect communities were organized in a binary matrix (presence/absence of the species); measures of distance and similarities were based on the Jaccard coefficient, and cluster analysis was then conducted. Construction of a dendogram showed similarities among geographically close localities where phenological stages of sicklepod plants were similar. Analysis of correspondence based on the correlation matrix showed that Eigen values of the three first axes explain only 40.1% of the observed variation. Correlation among the scores produced by species Eigenvectors in each locality on axis 1 and the latitude, altitude, and phenological stage showed that only phenological stage was correlated (r = 0.45,P = 0.02). The results indicate that weather will not be a limiting factor for the establishment of these insect species in an environmental gradient similar to that of the surveyed area (12 to 22° latitude and 6 to 1200 m altitude). Distribution in the ordinal space of axes 1 and 2 showed thatAgrilus oceanicum(Buprestidae),Fundella argentina(Pyralidae),Thyphedanus undulatus(Hesperidae), andPhoebis sennae(Pieridae) are grouped and separated from the others in axis 2, suggesting that these species co-occur with each other. Based on their feeding guilds, multiple introduction of these species can be considered. Multivariate analysis showed potential to be used as an additional tool to help in the selection of candidates for biocontrol agents. MenosA survey of natural enemies ofSenna obtusifolia(Leguminosae: Cesalpinaceae) was made in 46 localities in Brazil. Twenty-one preselected insect species were used in a multivariate analysis in a search for potential biocontrol agents, based on frequency of occurrence of each species, degree of insect/host association, and damage level. Insect communities were organized in a binary matrix (presence/absence of the species); measures of distance and similarities were based on the Jaccard coefficient, and cluster analysis was then conducted. Construction of a dendogram showed similarities among geographically close localities where phenological stages of sicklepod plants were similar. Analysis of correspondence based on the correlation matrix showed that Eigen values of the three first axes explain only 40.1% of the observed variation. Correlation among the scores produced by species Eigenvectors in each locality on axis 1 and the latitude, altitude, and phenological stage showed that only phenological stage was correlated (r = 0.45,P = 0.02). The results indicate that weather will not be a limiting factor for the establishment of these insect species in an environmental gradient similar to that of the surveyed area (12 to 22° latitude and 6 to 1200 m altitude). Distribution in the ordinal space of axes 1 and 2 showed thatAgrilus oceanicum(Buprestidae),Fundella argentina(Pyralidae),Thyphedanus undulatus(Hesperidae), andPhoebis sennae(Pieridae) are grouped and separated from the ot... Mostrar Tudo |
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Palavras-Chave: |
Análise de cluster; Análise de correspondência; Estratégia de busca; Herbivorus insects; Inseto herbivoro; Sicklepod; Survey strategy. |
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Thesagro: |
Controle Biológico; Erva Daninha; Fedegoso. |
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Thesaurus Nal: |
biological control; cluster analysis; correspondence analysis; natural enemies; Senna obtusifolia; weeds. |
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Categoria do assunto: |
-- |
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Marc: |
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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| 1. |  | GONÇALVES, D. K.; HAR, L. A.; ANDRETTA, T.; SUÑÉ, R. W.; DALTRO, D. dos D.; PORCIUNCULA, G. C. da; FREITAS, P. O. de; MÜLLER, M. Diagnóstico das instalações na criação de bezerras leiteiras. In: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 3., 2011. Uruguaiana. Conhecer para acontecer: para quê? para quem? para onde?: anais. Uruguaiana: Unipampa, 2011. 1 CD-ROM. SIEPE.| Tipo: Resumo em Anais de Congresso |
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| Registros recuperados : 1 | |
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