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Registros recuperados : 62 | |
41. | | FEIJOO, A.; MARICHAL, R.; PRAXEDES, C.; RUIZ, D.; CARVAJAL, A. F.; OSWALD, J.; HURTADO, M. Del P.; BROWN, G. G.; GRIMALDI, M.; DESJARDINS, T.; MAX, S.; DECAËNS, T.; LAVELLE, P. Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in Amazonian landscapes. In: INTERNATIONAL SYMPOSIUM ON EARTHWORM ECOLOGY, 9., 2010, Xalapa. Abstracts. Xalapa: Instituto de Ecologia, 2010. p. 111. Biblioteca(s): Embrapa Florestas. |
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42. | | MARICHAL, R.; MARTINEZ, A. F; PRAXEDES, C.; RUIZ, D.; CARVAJAL, A. F.; OSWALD, J.; HURTADO, M. Del P.; BROWN, G. G.; GRIMALDI, M.; DESJARDINS, T.; SARRAZIN, M.; DECAËNS, T.; VELASQUEZ, H.; LAVELLE, P. Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc. Applied Soil Ecology, v. 46, p. 443-449, 2010. Biblioteca(s): Embrapa Florestas. |
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43. | | SILVA, E. da; JAMES, S.; ROSA, M. da; BARTZ, M.; STANTON, D.; BUSCH, E.; SCHUHLI, G. S. e; CUNHA, L.; BARETTA, D.; DECAENS, T.; KILLE, P.; BROWN, G. G. Use of DNA barcoding for Brazilian earthworm biodiversity assessment: untangling taxonomy for conservation. In: INTERNATIONAL OLIGOCHAETE TAXONOMY MEETING, 7., 2016, Paimpont. Taxonomy, phygeny and ecology of earthworm's communities. [Rennes]: Université de Rennes, [2016]. Não paginado. Biblioteca(s): Embrapa Florestas. |
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44. | | BROWN, G. G.; NIVA, C. C.; ZAGATTO, M. R. G.; FERREIRA, S. de A.; NADOLNY, H. S.; CARDOSO, G. B. X.; SANTOS, A.; MARTINEZ, G. de A.; PASINI, A.; BARTZ, M. L. C.; SAUTTER, K. D.; THOMAZINI, M. J.; BARETTA, D.; SILVA, E. da; ANTONIOLLI, Z. I.; DECAËNS, T.; LAVELLE, P. M.; SOUSA, J. P.; CARVALHO, F. Biodiversidade da fauna do solo e sua contribuição para os serviços ambientais. In: PARRON, L. M.; GARCIA, J. R.; OLIVEIRA, E. B. de; BROWN, G. G.; PRADO, R. B. (Ed.). Serviços ambientais em sistemas agrícolas e florestais do Bioma Mata Atlântica. Brasília, DF : Embrapa, 2015. p. 121-154. Capítulo 10. Biblioteca(s): Embrapa Florestas. |
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45. | | CUNHA, L.; BARTZ, M.; DEMETRIO, W.; SILVA, T.; JAMES, S.; SILVA, E. da; STANTON, D.; CONRADO, A. C.; DECAENS, T.; LAVELLE, P.; SANTOS, A.; NADOLNY, H.; VELÁSQUEZ, E.; ZANGERLÉ, A.; TAPIA-CORAL, S.; FERREIRA, T.; MAIA, L.; SEGALLA, R.; CLEMENT, C.; MUNIZ, A. W.; KILLE, P.; BROWN, G. G.; TPI NETWORK. Earthworms and Amazonian Dark Earths: improving understanding of the relationships between soil management, biodiversity and function. In: INTERNATIONAL OLIGOCHAETE TAXONOMY MEETING, 7., 2016, Paimpont. Taxonomy, phygeny and ecology of earthworm's communities. [Rennes]: Université de Rennes, [2016]. Não paginado. Biblioteca(s): Embrapa Florestas. |
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46. | | LO-MAN-HUNG, N. F.; MARICHAL, R.; CANDIANI, D. F.; CARVALHO, L. S.; INDICATTI, R. P.; BONALDO, A. B.; COBO, D. H. R.; FEIJOO M. A.; TSELOUIKO, S.; PRAXEDES, C.; BROWN, G. G.; VELASQUEZ, E.; DECAENS, T.; OSZWALD, J.; MARTINS, M.; LAVELLE, P. Impact of different land management on soil spiders (Arachnida: Araneae) in two Amazonian areas of Brazil and Colombia. Journal of Arachnology, v. 39, n. 2, p. 296-302, 2011. Biblioteca(s): Embrapa Florestas. |
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47. | | TAHERI, S.; AMES, S.; ROY, V.; DECAËNS, T.; WILLIAMS, B. W.; ANDERSON, F.; ROUGERIE, R.; CHANG, C.-H.; BROWN, G. G.; CUNHA, L.; STANTON, D. W. G.; SILVA, E. da; CHEN, J-H.; LEMMON, A. R.; LEMMON, E. M.; BARTZ, M.; BARETTA, D.; BAROIS, I.; LAPIED, E.; COULIS, M.; DUPONT, L. Complex taxonomy of the "brush tail" peregrine earthworm Pontoscolex corethrurus. Molecular Phylogenetics and Evolution, v. 124, p. 60-70, July 2018. Biblioteca(s): Embrapa Florestas. |
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48. | | GANAULT, P.; RISTOK, C.; PHILLIPS, H. R. P.; HEDDE, M.; CAPOWIEZ, Y.; BOTTINELLI, N.; DECAËNS, T.; MARCHAN, D.; GÉRARD, S.; MATHIEU, J.; POTAPOV, A.; CAMERON, E. K.; BROWN, G. G.; BARTZ, M.; ZEISS, R.; ZI, Y.; TSIAFOULI, M.; RUSSELL, D. J.; GUERRA, C.; EISENHAUER, N. Soil BON earthworm: a global initiative on earthworm distribution, traits, and spatiotemporal diversity patterns. Soil Organisms, v. 96, n. 1, p. 47-60, 2024. Biblioteca(s): Embrapa Florestas. |
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49. | | MATHIEU, J.; ANTUNES, A. C.; BAROT, S.; ASATO, A. E. B.; BARTZ, M. L. C.; BROWN, G. G.; CALDERON-SANOU, I.; DECAËNS, T.; FONTE, S. J.; GANAULT, P.; GAUZENS, B.; GONGALSKY, K. B.; GUERRA, C. A.; HENGL, T.; LAVELLE, P.; MARICHAL, R.; MEHRING, H.; PEÑA-VENEGAS, C. P.; CASTRO, D.; POTAPOV, A.; THÉBAULT, E.; THUILLER, W.; WITJES, M.; ZHANG, C.; EISENHAUER, N. sOilFauna: a global synthesis effort on the drivers of soil macrofauna communities and functioning. Soil Organisms, v. 94, n. 2, p. 111?126, 2022. Workshop report. Biblioteca(s): Embrapa Florestas. |
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50. | | MARICHAL, R.; GRIMALDI, M.; FEIJOO M. A.; OSZWALD, J.; PRAXEDES, C.; RUIZ COBO, D. H.; DEL PILAR HURTADO, M.; DESJARDINS, T.; SILVA JUNIOR, M. L. da; COSTA, L. G. da S.; MIRANDA, I. S.; OLIVEIRA, M. N. D.; BROWN, G. G.; TSÉLOUIKO, S.; MARTINS, M. B.; DECAËNS, T.; VELASQUEZ, E.; LAVELLE, P. Soil macroinvertebrate communities and ecosystem services indeforested landscapes of Amazonia. Applied Soil Ecology, v. 83, p. 177-185, Nov. 2014. XVI International Colloquium on Soil Zoology & XIII International Colloquium on Apterygota, 2012, Coimbra. Selected papers. Biblioteca(s): Embrapa Florestas. |
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51. | | CONRADO, A. C.; DEMETRIO, W. C.; STANTON, D. W. G.; BARTZ, M. L. C.; JAMES, S. W.; SANTOS, A.; SILVA, E. da; FERREIRA, T.; ACIOLI, A. N. S.; FERREIRA, A. C.; MAIA, L. S.; SILVA, T. A. C.; LAVELLE, P.; VELASQUEZ, E.; TAPIA-CORAL, S. C.; MUNIZ, A. W.; SEGALLA, R. F.; DECAËNS, T.; NADOLNY, H. S.; PEÑA-VENEGAS, C.; PASINI, A.; OLIVEIRA JUNIOR, R. C. de; TPI NETWORK; KILLE, P.; BROWN, G. G.; CUNHA, L. Amazonian earthworm biodiversity is heavily impacted by ancient and recent human disturbance. Science of the Total Environment, v. 895, art. 165087, 2023. Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Florestas. |
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52. | | DECÄENS, T.; MARTINS, M. B.; FEIJOO, A.; OSZWALD, J.; DOLEDEC, S.; MATHIEU, J.; SARTRE, X. A. de; BONILLA, D.; BROWN, G. G.; CRIOLLO, Y. A. C.; DUBS, F.; FURTADO, I. S.; GOND, V.; GORDILLO, E.; LE CLEC'H, S.; MARICHAL, R. el; MITJA, D.; SOUZA, I. M. de; PRAXEDES, C.; ROUGERIE, R.; RUIZ, D. H.; OTERO, J. T.; SANABRIA, C.; VELASQUEZ, A.; ZARARTE, L. E. M.; LAVELLE, P. Biodiversity loss along a gradient of deforestation in Amazonian agricultural landscapes. Conservation Biology, v. 32, n. 6, p. 1380-1391, Dec. 2018. Biblioteca(s): Embrapa Florestas. |
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53. | | LAVELLE, P.; DOLEDEC, S.; GOND, V.; OSZWALD, J.; VEIGA, I.; RAMIREZ, B.; SANTOS, W.; SARTRE, A. de; DECAENS, T.; GRIMALDI, M.; HUBERT, B.; MARTINS, M.; LENA, P.; ROBERT, P. de; FEIJOO, A.; HURTADO, M. del P.; RODRIGUEZ, G.; MITJA, D.; MIRANDA, I.; GORDILLO, E.; VELASQUEZ, E.; OTERO, T.; VELASQUEZ, A.; THIOLLAY, J. M.; SOUSA, S. de; MORENO, L. E.; BROWN, G. G.; MARICHAL, R.; CHACON, P.; SANABRIA, C.; DESJARDINS, T.; SANTANA LIMA, T.; MICHELOTTI, F.; VILLANUEVA, O.; VELASQUEZ, J.; GUEVARRA, E.; FONTE, E. The need for eco-efficient landscapes to prevent irreversible degradation of agroecosystems in deforested Amazonia. In: TROPENTAG 2012: INTERNATIONAL RESEARCH ON FOOD SECURITY, NATURAL RESOURCE MANAGEMENT AND RURAL DEVELOPMENT, 2012, Göttingen. Resilience of agricultural systems against crises: book of abstracts. Göttingen: Cuvillier Verlag, 2012. Disponível online. Biblioteca(s): Embrapa Florestas. |
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54. | | SILVA, T. A. C.; CORREA, R. B.; SANTOS, A.; FERREIRA, A.; NALDONY, H.; CUNHA, L. F.; SILVA, E. da; CORAL, S. C. T.; VENEGAS, C. P.; LIMA, A. M. A.; SCHOCK, M.; DECAENS, T.; ACIOLLI, A. N. S.; JAMES, S.; BARTZ, M. L. C.; VELÁSQUEZ. E.; LAVELLE, P. M.; KILLE, P.; CLEMENT, C.; MARTINS, G. C.; MUNIZ, A. W.; PUCCI, P.; BROWN, G. G.; TERRA PRETO DE ÍNDIO NETWORK. População e biomassa de minhocas em Terra Preta de Índio no Amazonas utilizando diferentes metodologias de coleta. In: ENCONTRO LATINO-AMERICANO DE ECOLOGIA E TAXONOMIA DE OLIGOQUETAS, 5; SIMPÓSIO ENGENHEIROS EDÁFICOS, FERTILIDADE DO SOLO E TERRA PRETA DE ÍNDIO (TPI), 2015, Curitiba. Anais. [S.l.]: Federação Brasileira de plantio direto de irrigação, 2015. p. 96. Disponível online. Resumo. 5° ELAETAO. Biblioteca(s): Embrapa Florestas. |
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55. | | BROWN, G. G.; SILVA, E. da; THOMAZINI, M. J.; NIVA, C. C.; DECAËNS, T.; CUNHA, L. F. N.; NADOLNY, H. S.; DEMETRIO, W. C.; SANTOS, A.; FERREIRA, T.; MAIA, L. S.; CONRADO, A. C.; SEGALLA, R. F.; FERREIRA, A. C.; PASINI, A.; BARTZ, M. L. C.; SAUTTER, K. D.; JAMES, S. W.; BARETTA, D.; ANTONIOLLI, Z. I.; IGLESIAS BRIONES, M. J.; SOUSA, J. P.; RÖMBKE, J.; LAVELLE, P. The role of soil fauna in soil health and delivery of ecosystem services. In: REICOSKY, D. (Ed.). Managing soil health for sustainable agriculture: v. 1: fundamentals. [S.l.]: Burleigh Dodds Science Publ., 2018. p. 1-45. (Burleigh Dodds series in agricultural science). Biblioteca(s): Embrapa Cerrados; Embrapa Florestas. |
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56. | | THAKUR, M. P.; PHILLIPS, H. R. P.; BROSE, U.; VRIES, F. T. de; LAVELLE, P.; LOREAU, M.; MATHIEU, J.; MULDER, C.; PUTTEN, W. H. V. D.; RILLIG, M. C.; WARDLE, D. A.; BACH, E. M.; BARTZ, M. L. C.; BENNETT, J. M.; BRIONES, M. J. I.; BROWN, G. G.; DECAENS, T.; EISENHAUER, N.; FERLIAN, O.; GUERRA, C. A.; KONIG-RIES, B.; ORGIAZZI, A.; RAMIREZ, K. S.; RUSSELL, D. J.; RUTGERS, M.; WALL, D. H.; CAMERON, E. K. Towards an integrative understanding of soil biodiversity. Biological Reviews, v. 9, n. 2, p. 350-364, Apr. 2020. Biblioteca(s): Embrapa Florestas. |
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57. | | BROWN, G. G.; BARTZ, M.; JAMES, S.; CUNHA, L.; SILVA, E. da; FEIJOO, A.; ROSA, M.; SILVA, T.; STANTON, D.; KILLE, P.; BARETTA, D.; DECAENS, T.; LAVELLE, P.; SANTOS, A.; NADOLNY, H.; FERREIRA, T.; DEMETRIO, W.; CARDOSO, G.; TAHERI, S.; DUPONT, L.; GORTE, T.; BRAGA, L.; TSAI, S.; ZAGATTO, M.; FERREIRA, S.; PASINI, A.; STEFFEN, G.; STEFFEN, R.; ANTONIOLLI, Z.; DRUMOND, M. A.; SILVA, R. da; CARVALHO, M. R.; ESTEVES, E.; CHUBATSU, L.; HERNANDEZ, L.; ROUSSEAU, G.; SANTOS, B.; MARTINS, M.; SCHUHLI, G. S. e. Earthworm taxonomy, biology and ecology. An overview of recent advances (2013-2016) in Brazil. In: INTERNATIONAL OLIGOCHAETE TAXONOMY MEETING, 7., 2016, Paimpont. Taxonomy, phygeny and ecology of earthworm's communities. [Rennes]: Université de Rennes, [2016]. Não paginado. Biblioteca(s): Embrapa Florestas. |
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58. | | LAVELLE, P.; MATHIEU, J.; SPAIN. A.; BROWN, G. G.; FRAGOSO, C.; LAPIED, E.; AQUINO, A. de; BAROIS, I.; BARRIOS, E.; BARROS, M. E.; BEDANO, J. C.; BLANCHART, E.; CAULFIELD, M.; CHAGUEZA, Y.; DAI, J.; DECAËNS, T.; DOMINGUEZ, A.; DOMINGUEZ, Y.; FEIJOO, A.; FOLGARAIT, P.; FONTE, S. J.; GOROSITO, N.; HUERTA, E.; JIMENEZ, J. J.; KELLY, C.; LORANGER, G.; MARCHAO, R. L.; MARICHAL, R.; PRAXEDES, C.; RODRIGUEZ, L.; ROUSSEAU, G.; ROUSSEAU, L.; RUIZ, N.; SANABRIA, C.; SUAREZ, J. C.; TONDOH, J. E.; VALENÇA, A. de; VANEK, S. J.; VASQUEZ, J.; VELASQUEZ, E.; WEBSTER, E.; ZHANG, C. Soil macroinvertebrate communities: a world-wide assessment. Global Ecology and Biogeography, v. 31, n. 7, p. 1261-1276, 2022. Biblioteca(s): Embrapa Cerrados; Embrapa Florestas. |
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59. | | DEMETRIO, W. C.; CONRADO, A. C.; ACIOLI, A. N. S.; FERREIRA, A. C.; BARTZ, M. L. C.; JAMES, S. W.; SILVA, E. da; MAIA, L. S.; MARTINS, G. C.; MACEDO, R. S.; STANTON, D. W. G.; LAVELLE, P.; VELASQUEZ, E.; ZANGERLÉ, A.; BARBOSA, R.; TAPIA-CORAL, S. C.; MUNIZ, A. W.; SANTOS, A.; FERREIRA, T.; SEGALLA, R. F.; DECAËNS, T.; NADOLNY, H. S.; PEÑA-VENEGAS, C. P.; MAIA, C. M. B. F.; PASINI, A.; MOTA, A. F.; TAUBE JÚNIOR, P. S.; SILVA, T. A. C.; REBELLATO, L.; OLIVEIRA JUNIOR, R. C. de; NEVES, E. G.; LIMA, H. P.; FEITOSA, R. M.; TORRADO, P. V.; McKEY, D.; CLEMENT, C. R.; SHOCK, M. P.; TEIXEIRA, W. G.; MOTTA, A. C. V.; MELO, V. F.; DIECKOW, J.; GARRASTAZU, M. C.; CHUBATSU, L. S.; KILLE, P.; BROWN, G. G.; CUNHA, L. A "dirty" footprint: macroinvertebrate diversity in Amazonian Anthropic soils. Global Change Biology, v. 27, n. 19, p. 4575-4591, Oct. 2021. Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Florestas; Embrapa Solos. |
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60. | | BROWN, G. G.; DEMETRIO, W.; GABRIAC, Q.; PASINI, A.; KORASAKI, V.; OLIVEIRA, L.; FRANCHINI, J. C.; TORRES, E.; GALERANI, P. R.; GAZZIERO, D. L. P.; BENITO, N. P.; NUNES, D. H.; SANTOS, A.; FERREIRA, T.; NADOLNY, H. S.; BARTZ, M.; MASCHIO, W.; DUDAS, R. T.; ZAGATTO, M.; NIVA, C. C.; CLASEN, L.; SAUTTER, K.; FROUFE, L. C. M.; SEOANE, C. E. S.; MORAES, A. de; JAMES, S.; ALBERTON, O.; JÚNIOR, O. B.; SARAIVA, O. F.; GARCIA, A.; OLIVEIRA, E.; CÉSAR, R.; CORREA-FERREIRA, B. S.; BRUZ, L. S. M.; SILVA, E. da; CARDOSO, G. B. X.; LAVELLE, P.; VELÁSQUEZ, E.; CREMONESI, M.; PARRON, L. M.; BAGGIO, A. J.; NEVES, E. J. M.; HUNGRIA, M.; CAMPOS, T. A.; SILVA, V. L. da; REISSMANN, C. B.; CONRADO, A. C.; BOUILLET, J. D.; GONÇALVES, J. L. M.; BRANDANI, C. B.; VIANI, R. A. G.; PAULA, R. R.; LACLAU, J.; PEÑA-VENEGAS, C. P.; PERES, C.; DECAËNS, T.; PEY, B.; EISENHAUER, N.; COOPER, M.; MATHIEU, J. Soil macrofauna communities in Brazilian land-use systems. Biodiversity Data Journal, v. 12, e115000, 2024. Biblioteca(s): Embrapa Florestas; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Soja; Embrapa Unidades Centrais. |
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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
28/12/2010 |
Data da última atualização: |
18/08/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MARICHAL, R.; MARTINEZ, A. F; PRAXEDES, C.; RUIZ, D.; CARVAJAL, A. F.; OSWALD, J.; HURTADO, M. Del P.; BROWN, G. G.; GRIMALDI, M.; DESJARDINS, T.; SARRAZIN, M.; DECAËNS, T.; VELASQUEZ, H.; LAVELLE, P. |
Afiliação: |
RAPHAEL MARICHAL, Université Pierre et Marie Curie/IRD; ALEXANDER FEIJOO MARTINEZ, Universidad Tecnológica de Pereira, Colômbia; CATARINA PRAXEDES, Museu Paraense Emilio Goeldi; DARIO RUIZ, Université Pierre et Marie Curie/IRD; ANDRÉS F. CARVAJAL, Université Pier; JOHAN OSWALD, Université de Rennes, France; MARIA DEL PILAR HURTADO, CIAT, Colombia; GEORGE GARDNER BROWN, CNPF; MICHEL GRIMALDI, Centre IRD Ile, France; THIERRY DESJARDINS, Centre IRD Ile, France; MAX SARRAZIN, Centre IRD Ile, France; THIBAUD DECAËNS, Université de Rouen, France; HELENA VELASQUEZ, Universidade de Colombia; PATRICK LAVELLE, Centre IRD Ile, France. |
Título: |
Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Applied Soil Ecology, v. 46, p. 443-449, 2010. |
Idioma: |
Inglês |
Conteúdo: |
Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other species did not. Our results thus suggest that this invasive species, unlike native species, is able to feed and develop in environments where litter resources are decreased while soils have been enriched in C and nutrients by deforestation and burning. We discuss the reasons why some primary forests in Central America have large populations of P. corethrurus. MenosPontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other spec... Mostrar Tudo |
Thesagro: |
Minhoca. |
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Marc: |
LEADER 02674naa a2200289 a 4500 001 1871063 005 2015-08-18 008 2010 bl uuuu u00u1 u #d 100 1 $aMARICHAL, R. 245 $aInvasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc.$h[electronic resource] 260 $c2010 520 $aPontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other species did not. Our results thus suggest that this invasive species, unlike native species, is able to feed and develop in environments where litter resources are decreased while soils have been enriched in C and nutrients by deforestation and burning. We discuss the reasons why some primary forests in Central America have large populations of P. corethrurus. 650 $aMinhoca 700 1 $aMARTINEZ, A. F 700 1 $aPRAXEDES, C. 700 1 $aRUIZ, D. 700 1 $aCARVAJAL, A. F. 700 1 $aOSWALD, J. 700 1 $aHURTADO, M. Del P. 700 1 $aBROWN, G. G. 700 1 $aGRIMALDI, M. 700 1 $aDESJARDINS, T. 700 1 $aSARRAZIN, M. 700 1 $aDECAËNS, T. 700 1 $aVELASQUEZ, H. 700 1 $aLAVELLE, P. 773 $tApplied Soil Ecology$gv. 46, p. 443-449, 2010.
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