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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/11/1991 |
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Data da última atualização: |
24/02/2025 |
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Autoria: |
COULSON, R. N.; FARGO, W. S.; PULLEY, P. E.; POPE, D. N.; FOLTZ, J. L.; BUNTING, A. M. |
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Título: |
Spatial and temporal patterns of emergence for within-tree populationsof Dendroctonus frontalis (Coleoptera: Scolytidae). |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Canadian Entomologist, v., n.3, p.273-287, 1979. |
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Idioma: |
Inglês |
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Conteúdo: |
Spatial and temporal patterns of Dendroctonus frontalis emerging from loblolly pine, Pinus taeda, were studied. Daily emergence was measured at 1.5-m intervals along the infested bole on nine trees Emerging beetles from three of the trees were collected and their sex identified. Topological estimates of daily emergence on all trees were computed and the spatial and temporal patterns of emergence were described using three and five parameter models. Emergence followed the same general pattern at each of the 1.5-m sampling intervals. Peak density of emergence occurred at ca. 0.25 of the process time span (day 7) and declined thereafter. Emergence density was highest at the 3.5-m interval and tapered gradually towards the top of the tree and abruptly towards the bottom. The process took ca. 28 days for completion. Emergence partitioned by sex followed the same general pattern as observed for the combined sexes. The cumulative sex ratio of emerging beetles was essentially 1:1 at each height interval. Since the curves at the various height intervals were similar, emergence was described as an average process for the entire tree. The essential features of the process were retained in the average analysis. A probability distribution function defined for emergence permits calculation of the distribution of beetles from host trees provided the cumulative density is known. A frequency histogram illustrating the range in observed emergence density over a three year period was also included. Adult populations of D. frontalis available for colonization were interpreted as a single process “allocation.” The allocation process was defined by two components, re-emergence and emergence, and had the following characteristics: (1) it is continous for each tree in the infestation, (2) it is distinct for each tree, (3) it is bimodal in intensity, and (4) the components may operate together or independently. The allocation concept was used to interpret the manner in which D. frontalis infestations have been observed to develop. MenosSpatial and temporal patterns of Dendroctonus frontalis emerging from loblolly pine, Pinus taeda, were studied. Daily emergence was measured at 1.5-m intervals along the infested bole on nine trees Emerging beetles from three of the trees were collected and their sex identified. Topological estimates of daily emergence on all trees were computed and the spatial and temporal patterns of emergence were described using three and five parameter models. Emergence followed the same general pattern at each of the 1.5-m sampling intervals. Peak density of emergence occurred at ca. 0.25 of the process time span (day 7) and declined thereafter. Emergence density was highest at the 3.5-m interval and tapered gradually towards the top of the tree and abruptly towards the bottom. The process took ca. 28 days for completion. Emergence partitioned by sex followed the same general pattern as observed for the combined sexes. The cumulative sex ratio of emerging beetles was essentially 1:1 at each height interval. Since the curves at the various height intervals were similar, emergence was described as an average process for the entire tree. The essential features of the process were retained in the average analysis. A probability distribution function defined for emergence permits calculation of the distribution of beetles from host trees provided the cumulative density is known. A frequency histogram illustrating the range in observed emergence density over a three year period was also incl... Mostrar Tudo |
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Thesagro: |
Pinus Taeda; Praga. |
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Thesaurus Nal: |
Dendroctonus frontalis. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
null
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 2 | |
| 1. |  | MONTEIRO, J. E. B. de A.; COSTA, F. de S.; BEZERRA, M. A.; COMUNELLO, E.; ZOLIN, C. A.; PEREIRA, J. R.; MELEM JUNIOR, N. J.; ANTONIO, I. C.; SANTIAGO, A. V.; SILVA, S. C. da; SILVA, F. A. M. da; STEINMETZ, S.; KLEPKER, D.; COELHO FILHO, M. A.; CABRAL, O. M. R.; ANDRADE JUNIOR, A. S. de; GUIMARAES, D. P.; SORIANO, B. M. A.; PEZZOPANE, J. R. M.; EVANGELISTA, B. A.; ALVES, A. B.; MOURA, M. S. B. de; FARIAS, J. R. B.; BARROS, A. H. C.; TEIXEIRA, W. G.; SILVA, A. A. G. da; CUNHA, G. R. da; CONCEIÇÃO, M. A. F.; HIGA, R.; PELLEGRINO, G. Q. Agricultural climate risk zoning (ZARC). In: SOTTA, E. D.; SAMPAIO, F. G.; MARZALL, K.; SILVA, W . G. da (ed.). Adapting to climate change: strategies for Brazilian agricultural and livestock systems. Brasília, DF: MAPA, 2021. p. 102-103.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Acre; Embrapa Agricultura Digital; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Agrossilvipastoril; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Florestas; Embrapa Mandioca e Fruticultura; Embrapa Maranhão; Embrapa Meio Ambiente; Embrapa Meio-Norte; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Pecuária Sudeste; Embrapa Pesca e Aquicultura; Embrapa Rondônia; Embrapa Roraima; Embrapa Semiárido; Embrapa Soja; Embrapa Solos; Embrapa Trigo; Embrapa Uva e Vinho. MenosEmbrapa Acre; Embrapa Agricultura Digital; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Agrossilvipastoril; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados... Mostrar Todas |
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| 2. | | MONTEIRO, J. E. B. de A.; COSTA, F. de S.; BEZERRA, M. A.; COMUNELLO, E.; ZOLIN, C. A.; PEREIRA, J. R.; MELEM JUNIOR, N. J.; ANTONIO, I. C.; SANTIAGO, A. V.; SILVA, S. C. da; SILVA, F. A. M. da; STEINMETZ, S.; KLEPKER, D.; COELHO FILHO, M. A.; CABRAL, O. M. R.; ANDRADE JUNIOR, A. S. de; GUIMARAES, D. P.; SORIANO, B. M. A.; PEZZOPANE, J. R. M.; EVANGELISTA, B. A.; ALVES, A. B.; MOURA, M. S. B. de; FARIAS, J. R. B.; BARROS, A. H. C.; TEIXEIRA, W. G.; SILVA, A. A. G. da; CUNHA, G. R. da; CONCEIÇÃO, M. A. F.; HIGA, R. C. V.; PELLEGRINO, G. Q. Zoneamento Agrícola de Risco Climático (ZARC). In: SOTTA, E. D.; SAMPAIO, F. G.; MARZALL, K.; SILVA, W. G. da (org.). Estratégias de adaptação às mudanças do clima dos sistemas agropecuários brasileiros. Brasília, DF: MAPA, 2021. p. 102-103.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Acre; Embrapa Agricultura Digital; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Agrossilvipastoril; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Florestas; Embrapa Mandioca e Fruticultura; Embrapa Maranhão; Embrapa Meio-Norte; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Pecuária Sudeste; Embrapa Pesca e Aquicultura; Embrapa Rondônia; Embrapa Roraima; Embrapa Semiárido; Embrapa Soja; Embrapa Solos; Embrapa Tabuleiros Costeiros; Embrapa Trigo; Embrapa Uva e Vinho. MenosEmbrapa Acre; Embrapa Agricultura Digital; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Agrossilvipastoril; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão... Mostrar Todas |
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