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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/09/2008 |
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Data da última atualização: |
23/09/2008 |
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Autoria: |
CARES, J. E.; ANDRADE, E. P. |
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Título: |
The potential of soil nematodes as a tool for monitoring sustainability in Amazonian land use systems. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Nematodes are small invertebrate animals, known as the most abundant metazoan on earth.
Soil nematode community includes five major trophic groups: plant parasites (PP), bacteriovores
(BF), fungivores (FF), predators (PR) and omnivores (OM). Regardless functional group, all of
them contribute to nutrient cycling and are part of soil food web. The nematodes range from
agricultural pests, as the plant parasites, through beneficial organisms, as the entomopathogenic
that contribute to control agricultural pests. Due to their short life span and different feeding
functions, nematodes reflect environmental changes in their community structure and composition.
Colonizer nematodes, are tolerant to soil disturbance, and their populations increase in conditions
of nutrient enrichment, while persister nematodes prefer stabilized environment with structured
food chain. With aid of ecological measurement tools, nematodes have been used as indicators
of a variety of natural and anthropic environment alterations, as the impact of agricultural
practices, soil contamination with chemical pollutants, and to monitor recovery of degraded
lands. With the objective of evaluating the potential of nematode communities as a tool for
monitoring sustainability of Amazonian land use systems, a survey of soil nematodes was carried
out, as one of the activities of the project Conservation and sustainable management of below
ground biodiversity in Benjamin Constant, upper Solimões river, Amazonas, Brazil. In March
2004, 96 composite soil samples had been collected in six windows, of three different locations:
windows 1-2, in Guanabara II; 3-5, in Nova Aliança; 6, nearby the town of Benjamin Constant.
The sampling comprised six major land use systems (lus): 16 samples from Primary forest (Pf);
06 from Secondary forest (Sf), over ten years; 34 from Short term secondary forest (Ssf), under
10 years; 09 from Agroforestry system (Agf), with a variety of fruit trees; 19 from Crops (Cr),
mainly cassava and bananas; 13 form Pasture (Pa). Spatially, the sampling points were distributed
in a grid with quadrants of 100 x 100 m. Soil samples were collected in the top layer (0-20 cm).
Nematodes had been extracted from 300cc of soil, by sieving and sugar floatation procedures,
formalin fixed, counted, and glycerin infiltrate. Permanent slide mounts were prepared with 100
nematodes randomly picked for generic identification. Eighty-two genera in 36 families were
identified. Regardless lus, the communities were dominated by plant parasites. Nematode
diversity and trophic diversity were higher in Primary and in Secondary forest, and lower in
Pasture, while total abundance was higher in Pasture and Secondary forest. Relative abundance
for each trophic group decreased as follows: PP% (Agf >Ssf>Pa>Pf >Cr>Sf ); FF% (Sf >Pf
>Agf >Cr >Ssf >Pa); BF% (Sf >Cr>Pf > Ssf >Agf >Pa); PR% (Pf>Cr >Sf >Agf >Ssf>Pa); OM%
(Sf>Pa>Pf>Cr>Ssf>Agf). The ratio FF/BF indicates that decomposition was dominated by fungi,
in all lus. For all systems, Maturity and Plant parasite indices were below 2.5, a characteristic of
disturbed systems. The analyses mostly indicated pasture apart from the other lus, and the
Secondary forest and remaining systems (Ssf, Agf, and Cr) tending to the conditions of the
Primary forest. Funded by GEF-UNEP; implemented by TSBF-CIAT. MenosNematodes are small invertebrate animals, known as the most abundant metazoan on earth.
Soil nematode community includes five major trophic groups: plant parasites (PP), bacteriovores
(BF), fungivores (FF), predators (PR) and omnivores (OM). Regardless functional group, all of
them contribute to nutrient cycling and are part of soil food web. The nematodes range from
agricultural pests, as the plant parasites, through beneficial organisms, as the entomopathogenic
that contribute to control agricultural pests. Due to their short life span and different feeding
functions, nematodes reflect environmental changes in their community structure and composition.
Colonizer nematodes, are tolerant to soil disturbance, and their populations increase in conditions
of nutrient enrichment, while persister nematodes prefer stabilized environment with structured
food chain. With aid of ecological measurement tools, nematodes have been used as indicators
of a variety of natural and anthropic environment alterations, as the impact of agricultural
practices, soil contamination with chemical pollutants, and to monitor recovery of degraded
lands. With the objective of evaluating the potential of nematode communities as a tool for
monitoring sustainability of Amazonian land use systems, a survey of soil nematodes was carried
out, as one of the activities of the project Conservation and sustainable management of below
ground biodiversity in Benjamin Constant, upper Solimões river, Amazonas, Brazil... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 04070naa a2200133 a 4500
001 1314910
005 2008-09-23
008 2008 bl uuuu u00u1 u #d
100 1 $aCARES, J. E.
245 $aThe potential of soil nematodes as a tool for monitoring sustainability in Amazonian land use systems.
260 $c2008
520 $aNematodes are small invertebrate animals, known as the most abundant metazoan on earth. Soil nematode community includes five major trophic groups: plant parasites (PP), bacteriovores (BF), fungivores (FF), predators (PR) and omnivores (OM). Regardless functional group, all of them contribute to nutrient cycling and are part of soil food web. The nematodes range from agricultural pests, as the plant parasites, through beneficial organisms, as the entomopathogenic that contribute to control agricultural pests. Due to their short life span and different feeding functions, nematodes reflect environmental changes in their community structure and composition. Colonizer nematodes, are tolerant to soil disturbance, and their populations increase in conditions of nutrient enrichment, while persister nematodes prefer stabilized environment with structured food chain. With aid of ecological measurement tools, nematodes have been used as indicators of a variety of natural and anthropic environment alterations, as the impact of agricultural practices, soil contamination with chemical pollutants, and to monitor recovery of degraded lands. With the objective of evaluating the potential of nematode communities as a tool for monitoring sustainability of Amazonian land use systems, a survey of soil nematodes was carried out, as one of the activities of the project Conservation and sustainable management of below ground biodiversity in Benjamin Constant, upper Solimões river, Amazonas, Brazil. In March 2004, 96 composite soil samples had been collected in six windows, of three different locations: windows 1-2, in Guanabara II; 3-5, in Nova Aliança; 6, nearby the town of Benjamin Constant. The sampling comprised six major land use systems (lus): 16 samples from Primary forest (Pf); 06 from Secondary forest (Sf), over ten years; 34 from Short term secondary forest (Ssf), under 10 years; 09 from Agroforestry system (Agf), with a variety of fruit trees; 19 from Crops (Cr), mainly cassava and bananas; 13 form Pasture (Pa). Spatially, the sampling points were distributed in a grid with quadrants of 100 x 100 m. Soil samples were collected in the top layer (0-20 cm). Nematodes had been extracted from 300cc of soil, by sieving and sugar floatation procedures, formalin fixed, counted, and glycerin infiltrate. Permanent slide mounts were prepared with 100 nematodes randomly picked for generic identification. Eighty-two genera in 36 families were identified. Regardless lus, the communities were dominated by plant parasites. Nematode diversity and trophic diversity were higher in Primary and in Secondary forest, and lower in Pasture, while total abundance was higher in Pasture and Secondary forest. Relative abundance for each trophic group decreased as follows: PP% (Agf >Ssf>Pa>Pf >Cr>Sf ); FF% (Sf >Pf >Agf >Cr >Ssf >Pa); BF% (Sf >Cr>Pf > Ssf >Agf >Pa); PR% (Pf>Cr >Sf >Agf >Ssf>Pa); OM% (Sf>Pa>Pf>Cr>Ssf>Agf). The ratio FF/BF indicates that decomposition was dominated by fungi, in all lus. For all systems, Maturity and Plant parasite indices were below 2.5, a characteristic of disturbed systems. The analyses mostly indicated pasture apart from the other lus, and the Secondary forest and remaining systems (Ssf, Agf, and Cr) tending to the conditions of the Primary forest. Funded by GEF-UNEP; implemented by TSBF-CIAT.
700 1 $aANDRADE, E. P.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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Embrapa Florestas (CNPF) |
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| Registros recuperados : 29 | |
| 5. |  | ANDRADE, E. P. de; CORDEIRO, M. C. R.; GONZAGA, V.; GOULART, A.; CARES, J. E. Diagnóstico molecular de Pratylenchus spp. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 174-175 (Embrapa Cerrados. Documentos, 2010).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 12. | | ANDRADE, E. P. de; SANTOS, J. R. P.; CARES, J. E.; CORDEIRO, M. C. R.; SABATO, E. de O.; GUIMARAES, P. E. de O.; GONZAGA, V. Avaliação da resistência de linhagens e híbridos de milho a Pratylenchus brachyurus e P. zeae. In: Tropical Plant Pathology, v. 35, supl., p. S211, ago. 2010. Edição dos resumos do Congresso Brasileiro de Fitopatologia, 43. p. S211| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 13. | | ANDRADE, E. P. de; SANTOS, J. R. P.; CARES, J. E.; CORDEIRO, M. C. R.; SABATO, E. O.; GUIMARAES, P. E. de O.; GONZAGA, V. Avaliação da resistência de linhagens e híbridos de milho a Pratylenchus brachyurus e P. zeae. Tropical Plant Pathology, v. 35, p. S211, ago. 2010. Suplemento, ref. 07.050. Edição dos resumos do XLIII Congresso Brasileiro de Fitopatologia, Cuiabá, ago. 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 15. | | BAYMA, M. M. A.; MALAVAZI, F. W.; SA, C. P. de; FONSECA, F. L. da; ANDRADE, E. P. de; WADT, L. H. de O. Aspectos da cadeia produtiva da castanha-do-brasil no estado do Acre, Brasil. Boletim do Museu Paraense Emilio Goeldi Ciências Naturais, Belém, v. 9, n. 2, p. 471-426, maio/ago. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Acre. |
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| 17. | | CASTRO, A. P. G. de; GOULART, A. M. C.; ANDRADE, E. P. de; FALEIRO, F. G.; JUNQUEIRA, N. T. V.; TRINDADE, L. de C.; CARES, J. E. Diversidade de nematóides em áreas plantadas com maracujazeiro ou de Cerrado nativo no Distrito Federal. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
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| 18. | | CASTRO, A. P. G. DE; CARES, J. E.; CARVALHO, D. D. C.; ANDRADE, E. P. DE; FALEIRO, F. G.; GOULART, A. M. C. Resistência de genótipos comerciais e silvestres de Passiflora spp. A Meloidogyne incognita em condições de casa de vegetação. Revista da FZVA, v. 17, n. 2, p. 186-198, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 29 | |
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