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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
24/08/2012 |
Data da última atualização: |
20/02/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARICHAL, R.; GRIMALDI, M.; MATHIEU, J.; BROWN, G. G.; SILVA JUNIOR, M. L. da; PRAXEDES, C.; MARTINS, M. B.; VELASQUEZ, E.; LAVELLE, P. |
Afiliação: |
RAPHAEL MARICHAL, Museu Paraense Emilio Goeldi; MICHEL GRIMALDI, RD, UMR Bioemco; JEROME MATHIEU, UPMC Université Paris; GEORGE GARDNER BROWN, CNPF; MARIO LOPES DA SILVA JUNIOR, UFRA; CATARINA PRAXEDES, Museu Paraense Emilio Goeldi; MARLUCIA B. MARTINS, Museu Paraense Emilio Goeldi; ELENA VELASQUEZ, Universidad Nacional de Colombia; PATRICK LAVELLE, Centro Internacional de Agricultura Tropical (CIAT). |
Título: |
Is invasion of deforested Amazonia by the earthworm Pontoscolex corethrurus driven by soil texture and chemical properties? |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Pedobiologia, v. 55, p. 233-240, 2012. |
Idioma: |
Inglês |
Conteúdo: |
Pontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm communities could potentially also be key elements for understanding why P. corethrurus populations occur in some sites and not in others. MenosPontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm c... Mostrar Tudo |
Thesagro: |
Minhoca. |
Thesaurus Nal: |
Amazonia; Pontoscolex corethrurus. |
Categoria do assunto: |
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Marc: |
LEADER 02376naa a2200253 a 4500 001 1932145 005 2015-02-20 008 2012 bl uuuu u00u1 u #d 100 1 $aMARICHAL, R. 245 $aIs invasion of deforested Amazonia by the earthworm Pontoscolex corethrurus driven by soil texture and chemical properties?$h[electronic resource] 260 $c2012 520 $aPontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm communities could potentially also be key elements for understanding why P. corethrurus populations occur in some sites and not in others. 650 $aAmazonia 650 $aPontoscolex corethrurus 650 $aMinhoca 700 1 $aGRIMALDI, M. 700 1 $aMATHIEU, J. 700 1 $aBROWN, G. G. 700 1 $aSILVA JUNIOR, M. L. da 700 1 $aPRAXEDES, C. 700 1 $aMARTINS, M. B. 700 1 $aVELASQUEZ, E. 700 1 $aLAVELLE, P. 773 $tPedobiologia$gv. 55, p. 233-240, 2012.
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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
17/03/2004 |
Data da última atualização: |
08/04/2014 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
DOBIGNIES, A.; ZUEFELLATO-RIBAS; K. C.; CARPANEZZI, A. A.; TAVARES, F. R.; GARCIA, A. |
Afiliação: |
Dobignies e Garcia, estagiários; Carpanezzi e Tavares, pesquisadores da Embrapa Florestas. |
Título: |
Enraizamento de estacas caulinares de Pueraria lobata (Willd.) Owhi com a aplicação de diferentes concentrações de ácido indol butírico. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 2., 2003, Colombo. Anais. Colombo: Embrapa Florestas, 2003. 035R. |
Descrição Física: |
1 Cd-Rom. |
Série: |
(Embrapa Florestas. Documentos, 86). |
Idioma: |
Português |
Notas: |
Organizado por Patricia Póvoa de Mattos, Celso Garcia Auer, Rejane Stumpf Sberze, Katia Regina Pichelli e Paulo César Botosso. |
Palavras-Chave: |
Pueraria lobata. |
Thesagro: |
Enraizamento; Kudzu. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/100862/1/2003-RAC-EnraizamentoEstacas.pdf
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Marc: |
LEADER 00913nam a2200229 a 4500 001 1308542 005 2014-04-08 008 2003 bl uuuu u00u1 u #d 100 1 $aDOBIGNIES, A. 245 $aEnraizamento de estacas caulinares de Pueraria lobata (Willd.) Owhi com a aplicação de diferentes concentrações de ácido indol butírico. 260 $aIn: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 2., 2003, Colombo. Anais. Colombo: Embrapa Florestas, 2003. 035R.$c2003 300 $c1 Cd-Rom. 490 $a(Embrapa Florestas. Documentos, 86). 500 $aOrganizado por Patricia Póvoa de Mattos, Celso Garcia Auer, Rejane Stumpf Sberze, Katia Regina Pichelli e Paulo César Botosso. 650 $aEnraizamento 650 $aKudzu 653 $aPueraria lobata 700 1 $aZUEFELLATO-RIBAS 700 1 $aK. C. 700 1 $aCARPANEZZI, A. A. 700 1 $aTAVARES, F. R. 700 1 $aGARCIA, A.
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