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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
30/08/1993 |
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Data da última atualização: |
30/08/1993 |
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Autoria: |
RISCH, S. J.; ANDOW, D.; ALTIERI, M. A. |
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Título: |
Agroecosystem diversity and pest control: data, tentative conclusions, and new research directions. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Forum: Environmental Entomology, v.12, n.3, p.625-629, June, 1983. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTACT - Recent criticism of the theory that increased diversity leads to increased stability has led to widespread skepticism about the value of using ecological theory to suggest strategies of agricultural diversification to better control insect pests. A total of 150 published studies which examine the effect of diversifying agroecossystem on insect pest abundance are summarized; 198 total herbivore species were examined in these studies: 53% of these species were found to be less abundant in the more diversified system, 18% were more abundant in the more diversified system, 9% showed no difference, and 20% showed a variable response. Two major problems with the studies were: (1) proper experiments were not conducted to show that differences in pest abundance between more and less diverse systems resulted in yield differences; (2) the ecological mechanisms accounting for the differences in pest abundance were carefully examined in only a few of the studies. A fundamental understanding of these ecological mechanisms is critical to the development of a predictive theory of how agricultural diversification affects insect pests. Empirical data and several theorical arguments are presented which suggest that differences in pest abundance between diverse and simple system can frequently be accounted for by the response of herbivore host-finding behavior to the patterns to the patterns of resources availability, rather than the activities of natural enemies. The development of ecologically sound ... MenosABSTACT - Recent criticism of the theory that increased diversity leads to increased stability has led to widespread skepticism about the value of using ecological theory to suggest strategies of agricultural diversification to better control insect pests. A total of 150 published studies which examine the effect of diversifying agroecossystem on insect pest abundance are summarized; 198 total herbivore species were examined in these studies: 53% of these species were found to be less abundant in the more diversified system, 18% were more abundant in the more diversified system, 9% showed no difference, and 20% showed a variable response. Two major problems with the studies were: (1) proper experiments were not conducted to show that differences in pest abundance between more and less diverse systems resulted in yield differences; (2) the ecological mechanisms accounting for the differences in pest abundance were carefully examined in only a few of the studies. A fundamental understanding of these ecological mechanisms is critical to the development of a predictive theory of how agricultural diversification affects insect pests. Empirical data and several theorical arguments are presented which suggest that differences in pest abundance between diverse and simple system can frequently be accounted for by the response of herbivore host-finding behavior to the patterns to the patterns of resources availability, rather than the activities of natural enemies. The development of ... Mostrar Tudo |
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Palavras-Chave: |
Agroecossistema; Consorcio; Diversidade; Insetos - controle; Insetos herbivoros; Pragas; Pragas - controle. |
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Thesagro: |
Ecologia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02204naa a2200241 a 4500
001 1417750
005 1993-08-30
008 1983 bl --- 0-- u #d
100 1 $aRISCH, S. J.
245 $aAgroecosystem diversity and pest control$bdata, tentative conclusions, and new research directions.
260 $c1983
520 $aABSTACT - Recent criticism of the theory that increased diversity leads to increased stability has led to widespread skepticism about the value of using ecological theory to suggest strategies of agricultural diversification to better control insect pests. A total of 150 published studies which examine the effect of diversifying agroecossystem on insect pest abundance are summarized; 198 total herbivore species were examined in these studies: 53% of these species were found to be less abundant in the more diversified system, 18% were more abundant in the more diversified system, 9% showed no difference, and 20% showed a variable response. Two major problems with the studies were: (1) proper experiments were not conducted to show that differences in pest abundance between more and less diverse systems resulted in yield differences; (2) the ecological mechanisms accounting for the differences in pest abundance were carefully examined in only a few of the studies. A fundamental understanding of these ecological mechanisms is critical to the development of a predictive theory of how agricultural diversification affects insect pests. Empirical data and several theorical arguments are presented which suggest that differences in pest abundance between diverse and simple system can frequently be accounted for by the response of herbivore host-finding behavior to the patterns to the patterns of resources availability, rather than the activities of natural enemies. The development of ecologically sound ...
650 $aEcologia
653 $aAgroecossistema
653 $aConsorcio
653 $aDiversidade
653 $aInsetos - controle
653 $aInsetos herbivoros
653 $aPragas
653 $aPragas - controle
700 1 $aANDOW, D.
700 1 $aALTIERI, M. A.
773 $tForum: Environmental Entomology$gv.12, n.3, p.625-629, June, 1983.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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| Registros recuperados : 62 | |
| 12. |  | PAULA, D. P.; ANDOW, D. A.; PIRES, C. S. S.; SUJII, E. R. Impacto da introdução de pragas sobre a biodiversidade. In: SUGAYAMA, R. L.; SILVA, M. L. da; SILVA, S. X. de B.; RIBEIRO, L. C.; RANGEL, L. E. P. (Ed.). Defesa vegetal: fundamentos, ferramentas, políticas e perspectivas Belo Horizonte: SBDA - Sociedade Brasileira de Defesa Agropecuária, 2015. p. 79-101.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 16. | | PIRES, C. S. S.; FONTES, E. M. G.; SUJII, E. R.; HILBECK, A.; ANDOW, D. Protocolos para análise dos possíveis efeitos de plantas geneticamente modificadas (GM) sobre herbívoros não-alvo, polinizadores e espécies de interesse conservacionista. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 20., 2004, Gramado. Programa e resumos... Gramado: Sociedade Entomológica do Brasil, 2004. p. 146.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 18. | | PITTA, R. M.; BARROS, S. K. A.; BARRETO, M. R.; ANDOW, D. A.; PAULA, D. P. Influence of cropping systems on epigeal coleopteran predators. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015. p. 337.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 19. | | PITTA, R. M.; BARROS, S. K. A.; BARRETO, M. R.; ANDOW, D. A.; PAULA, D. P. Influence of cropping systems on epigeal coleopteran predators In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 62 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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