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| 107. |  | BROWN, G. G. BAROIS, I.; MORENO, A. G. Soil-C stocks and earthworms diversity of native and introduced pastures in Veracruz, Mexico. In: INTERNATIONAL TECHNICAL WORKSHOP ON BIOLOGICAL MANAGEMENT OF SOIL ECOSYSTEMS FOR SUSTAINABLE AGRICULTURE, 2002, Londrina. Program, abstracts and related documents. Londrina: Embrapa Soybean: FAO, 2002. p. 98-99. (Embrapa Soja. Documentos, 182). Organizado por George G. Brown, Mariangela Hungria, Lenita Jacob Oliveira, Sally Bunning, Adriana Montañez.| Biblioteca(s): Embrapa Soja. |
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| 113. | | ZAGATTO, M. R. G.; NIVA, C. C.; BROWN, G. G. Influência de sistemas integrados de produção em populações de minhocas no Município de Ponta Grossa, PR. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 12., 2013, Colombo. Anais. Colombo: Embrapa Florestas, 2013. (Embrapa Florestas. Documentos, 253). Editores técnicos: Marcílio José Thomazini, Elenice Fritzsons, Patrícia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos.| Biblioteca(s): Embrapa Florestas. |
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| 114. | | ASSIS, O.; NIVA, C. C.; BROWN, G. G. A influência dos nutrientes do solo na abundância de enquitreídeos (Oligochaeta, Enchytraeidae) em quatro diferentes sistemas de produção em Quitandinha, PR. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 13., 2014, Colombo. Anais. Colombo: Embrapa Florestas, 2014. p. 12. (Embrapa Florestas. Documentos, 267). Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 115. | | MANDO, A.; BRUSSAARD, L.; STROOSNIJDER, L.; BROWN, G. G. Managing termites and organic resources to improve soil productivity in the Sahel. In: INTERNATIONAL TECHNICAL WORKSHOP ON BIOLOGICAL MANAGEMENT OF SOIL ECOSYSTEMS FOR SUSTAINABLE AGRICULTURE, 2002, Londrina. Program, abstracts and related documents. Londrina: Embrapa Soybean: FAO, 2002. p. 191-203. (Embrapa Soja. Documentos, 182). Organizado por George G. Brown, Mariangela Hungria, Lenita Jacob Oliveira, Sally Bunning, Adriana Montañez.| Biblioteca(s): Embrapa Soja. |
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| 116. | | BENITO, N. P.; ROESSING, M.; PASINI, A.; BROWN, G. G. Macrofauna invertebrada do solo em pastagens do norte do Estado do Paraná. In:WORKSHOP O USO DA MACROFAUNA EDÁFICA NA AGRICULTURA DO SÉCULO XXI: A IMPORTÂNCIA DOS ENGENHEIROS DO SOLO, 2003, Londrina. Anais... Londrina: Embrapa Soja: Instituto de Ecologia, A.C., 2003. p. 175-180. (Embrapa Soja. Documentos, 224). Organizado por George Gardner Brown, Carlos Fragoso, Lenita Jacob Oliveira.| Biblioteca(s): Embrapa Soja. |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
21/08/2008 |
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Data da última atualização: |
22/08/2008 |
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Autoria: |
KORASAKI, V.; BROWN, G. G.; PASINI, A.; LOPES, J. |
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Título: |
Earthworm populations in three Atlantic Rainforest fragments with different disturbance levels near Londrina, Paraná, Brazil. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: International Symposium on Earthworm Ecology, 8., 2006, Kraków. Abstracts... Kraków: Jagiellonian University, 2006. p. 74. |
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Idioma: |
Inglês |
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Conteúdo: |
Earthworms are known to be good indicators of soil conditions, due to their susceptibility to management practices, vegetation types, disturbance, and other environmental properties. Little is known of the earthworm communities of Paraná State, Brazil, and therefore the present study was undertaken to evaluate the earthworm communities in Atlantic Rainforest fragments in the vicinity of Londrina, Paraná State, Brazil, and the effect of forest disturbance on their populations. Earthworms were sampled from three forest fragments at 1) the Godoy Forest State Park (GF); 2) the Arthur Thomas Municipal Park (AT); 3) the State University of Londrina (UEL) campus. GF is a moderately well preserved primary forest, AT is a secondary forest, at advanced level of succession, while UEL is a secondary forest at the incipient level of succession. Disturbance levels could thus be classified as UEL>AT>GF. Samples were taken in the wet and dry seasons (March and July) of 2005, and consisted 25 square soil blocks of 25 x 25 cm (1/16 m2), taken in a grid format, with 10 m distance between samples. Twenty samples were taken to 10 cm depth and five to 30 cm depth (diagonally in the grid). In the dry season, highest earthworm density was observed at AT (475 ind.m-2), followed by UEL (326 ind.m-2) and GF (24 ind.m-2). Earthworm biomass followed the order UEL (15.8 g.m-2) > AT (6 g.m-2) > GF (0.8 g.m-2). In the rainy season, highest populations were again observed at AT (1069 ind.m-2), followed by UEL (149 ind.m-2) and GF (139 ind.m-2). Earthworm biomass again followed the order UEL (23.1 g.m-2) > AT (18 g.m-2) > GF (3 g.m-2). Therefore, abundance and biomass were generally higher in the rainy season. Cocoon abundance and biomass was also greatest at all sites in the rainy season. In the dry season, more worms were found in the 20-30 cm layer compared to the top 10 cm, with the exception of the UEL forest. In the wet season, most earthworms inhabited the top 10 cm layer. Earthworm abundance was greater in the disturbed (UEL and AT) sites than the primary forest (GF). Species composition in the forests was also different. GF had only native earthworms (Urobenus brasiliensis, Urobenus sp. and Glossoscolex sp.), while both UEL and AT had both native (Urobenus brasiliensis, Fimoscolex sp., Glossoscolex sp., Belladrilus sp.) and exotic (Amynthas gracilis, Dichogaster spp. and Pontoscolex MenosEarthworms are known to be good indicators of soil conditions, due to their susceptibility to management practices, vegetation types, disturbance, and other environmental properties. Little is known of the earthworm communities of Paraná State, Brazil, and therefore the present study was undertaken to evaluate the earthworm communities in Atlantic Rainforest fragments in the vicinity of Londrina, Paraná State, Brazil, and the effect of forest disturbance on their populations. Earthworms were sampled from three forest fragments at 1) the Godoy Forest State Park (GF); 2) the Arthur Thomas Municipal Park (AT); 3) the State University of Londrina (UEL) campus. GF is a moderately well preserved primary forest, AT is a secondary forest, at advanced level of succession, while UEL is a secondary forest at the incipient level of succession. Disturbance levels could thus be classified as UEL>AT>GF. Samples were taken in the wet and dry seasons (March and July) of 2005, and consisted 25 square soil blocks of 25 x 25 cm (1/16 m2), taken in a grid format, with 10 m distance between samples. Twenty samples were taken to 10 cm depth and five to 30 cm depth (diagonally in the grid). In the dry season, highest earthworm density was observed at AT (475 ind.m-2), followed by UEL (326 ind.m-2) and GF (24 ind.m-2). Earthworm biomass followed the order UEL (15.8 g.m-2) > AT (6 g.m-2) > GF (0.8 g.m-2). In the rainy season, highest populations were again observed at AT (1069 ind.m-2), followed by U... Mostrar Tudo |
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LEADER 02973naa a2200157 a 4500
001 1470762
005 2008-08-22
008 2006 bl --- 0-- u #d
100 1 $aKORASAKI, V.
245 $aEarthworm populations in three Atlantic Rainforest fragments with different disturbance levels near Londrina, Paraná, Brazil.
260 $c2006
520 $aEarthworms are known to be good indicators of soil conditions, due to their susceptibility to management practices, vegetation types, disturbance, and other environmental properties. Little is known of the earthworm communities of Paraná State, Brazil, and therefore the present study was undertaken to evaluate the earthworm communities in Atlantic Rainforest fragments in the vicinity of Londrina, Paraná State, Brazil, and the effect of forest disturbance on their populations. Earthworms were sampled from three forest fragments at 1) the Godoy Forest State Park (GF); 2) the Arthur Thomas Municipal Park (AT); 3) the State University of Londrina (UEL) campus. GF is a moderately well preserved primary forest, AT is a secondary forest, at advanced level of succession, while UEL is a secondary forest at the incipient level of succession. Disturbance levels could thus be classified as UEL>AT>GF. Samples were taken in the wet and dry seasons (March and July) of 2005, and consisted 25 square soil blocks of 25 x 25 cm (1/16 m2), taken in a grid format, with 10 m distance between samples. Twenty samples were taken to 10 cm depth and five to 30 cm depth (diagonally in the grid). In the dry season, highest earthworm density was observed at AT (475 ind.m-2), followed by UEL (326 ind.m-2) and GF (24 ind.m-2). Earthworm biomass followed the order UEL (15.8 g.m-2) > AT (6 g.m-2) > GF (0.8 g.m-2). In the rainy season, highest populations were again observed at AT (1069 ind.m-2), followed by UEL (149 ind.m-2) and GF (139 ind.m-2). Earthworm biomass again followed the order UEL (23.1 g.m-2) > AT (18 g.m-2) > GF (3 g.m-2). Therefore, abundance and biomass were generally higher in the rainy season. Cocoon abundance and biomass was also greatest at all sites in the rainy season. In the dry season, more worms were found in the 20-30 cm layer compared to the top 10 cm, with the exception of the UEL forest. In the wet season, most earthworms inhabited the top 10 cm layer. Earthworm abundance was greater in the disturbed (UEL and AT) sites than the primary forest (GF). Species composition in the forests was also different. GF had only native earthworms (Urobenus brasiliensis, Urobenus sp. and Glossoscolex sp.), while both UEL and AT had both native (Urobenus brasiliensis, Fimoscolex sp., Glossoscolex sp., Belladrilus sp.) and exotic (Amynthas gracilis, Dichogaster spp. and Pontoscolex
700 1 $aBROWN, G. G.
700 1 $aPASINI, A.
700 1 $aLOPES, J.
773 $tIn: International Symposium on Earthworm Ecology, 8., 2006, Kraków. Abstracts... Kraków: Jagiellonian University, 2006. p. 74.
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