| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
11/11/1991 |
|
Data da última atualização: |
24/02/2025 |
|
Autoria: |
COULSON, R. N.; FARGO, W. S.; PULLEY, P. E.; POPE, D. N.; FOLTZ, J. L.; BUNTING, A. M. |
|
Título: |
Spatial and temporal patterns of emergence for within-tree populationsof Dendroctonus frontalis (Coleoptera: Scolytidae). |
|
Ano de publicação: |
1979 |
|
Fonte/Imprenta: |
Canadian Entomologist, v., n.3, p.273-287, 1979. |
|
Idioma: |
Inglês |
|
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 |
|
Thesagro: |
Pinus Taeda; Praga. |
|
Thesaurus Nal: |
Dendroctonus frontalis. |
|
Categoria do assunto: |
O Insetos e Entomologia |
|
Marc: |
LEADER 02698naa a2200217 a 4500
001 1279693
005 2025-02-24
008 1979 bl uuuu u00u1 u #d
100 1 $aCOULSON, R. N.
245 $aSpatial and temporal patterns of emergence for within-tree populationsof Dendroctonus frontalis (Coleoptera$bScolytidae).$h[electronic resource]
260 $c1979
520 $aSpatial 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.
650 $aDendroctonus frontalis
650 $aPinus Taeda
650 $aPraga
700 1 $aFARGO, W. S.
700 1 $aPULLEY, P. E.
700 1 $aPOPE, D. N.
700 1 $aFOLTZ, J. L.
700 1 $aBUNTING, A. M.
773 $tCanadian Entomologist$gv., n.3, p.273-287, 1979.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 29 | |
| 16. |  | VIEIRA, L. da S.; LOBO, R. N. B.; BARROS, N. N.; PORTELA, C. H. da P.; SIMPLÍCIO, A. A. Monensina sódica no controle da eimeriose em caprinos leiteiros. Ciência Animal, Fortaleza, v. 15, n. 1, p. 25-31, 2005.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - C |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
|    |
| 17. | | VIENCZ, T.; PORTELA, C. da S.; ROCHA, R. B.; ALVES, E. A.; RAMALHO, A. R.; BENASSI, M. de T. Sensory description of beverages of intervarietal hybrids of Conilon and Robusta: natural and fermented coffees. Journal of Sensory Studies, v. 39, n. 1, e12893, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Café. |
|  |
| 18. | | PORTELA, C. D.; RODRIGUES, M. do R. L.; LOPES, R.; DELGADO, J. P. M.; FONSECA, D. R.; PINTO, K. G. D. Avaliação do desenvolvimento de mudas de açaí-do-amazonas em diferentes substratos e tamanhos de recipientes. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 21., 2023-2024, Manaus. Anais... Manaus: Embrapa Amazônia Ocidental, 2025. p. 16. (Embrapa Amazônia Ocidental. Eventos Técnicos & Científicos, 2).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
| |
| 19. | | ARIAS, C. A. A.; TOLEDO, J. F. F. de; HOFFMANN-CAMPO, C. B.; PORTELA, C. C.; PORTO, W. S.; DORTA, E. de O. Desenvolvimento de germoplasma de soja com resistência a insetos e adaptado às diversas regiões agroecológicas (04.2000.321-06). In: HOFFMANN-CAMPO, C. B.; SARAIVA, O. F. (Org.). Resultados de pesquisa da Embrapa Soja - 2001: melhoramento e transferência de tecnologia. Londrina: Embrapa Soja, 2002. p. 15-18. (Embrapa Soja. Documentos, 191).| Biblioteca(s): Embrapa Soja. |
| |
| 20. | | FRANCISCO, J. da S.; PORTELA, C. da S.; DALAZEN, J. R.; ROCHA, R. B.; ALVES, E. A.; MORI, A. L. B.; BENASSI, M. de T. Diterpenos em cafés Coffea canephora híbridos naturais cultivados em Rondônia. Brazilian Journal of Development, Curitiba, v.9, n.1, p. 420-429, jan., 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Rondônia. |
| |
| Registros recuperados : 29 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
