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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
05/09/2008 |
Data da última atualização: |
05/09/2008 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
BARTZ, M. L. C.; PASINI, A.; BROWN, G. G. |
Afiliação: |
Marie Luise Carolina Bartz, UEL; Amarildo Pasini, UEL; George G. Brown, Embrapa Florestas. |
Título: |
Earthworms in agroecosystems of Northern Paraná, Brazil. |
Ano de publicação: |
2008 |
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. |
Idioma: |
Inglês |
Conteúdo: |
Soil alterations, such as oscillations in temperature, moisture, and organic matter contents,
mainly resulting from agricultural activity, have an impact on both the number and species of earthworms in the soil. The objective of this paper was to identify earthworm species in
agroecosystems. The study was conducted in the cities of Rolândia and Arapongas - PR, Brazil, in five areas: 1) no-till (35 years); 2) subsoiled no-till; 3) pasture; 4) coffee plantation; and 5) native forest. In all areas the soil was classified as Typic Acrudox (Dystroferric Red Latosoil). Nine samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-30 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were then counted and separated into cocoons, juveniles, and adults and identified at the family, genus and specie levels. In order to calculate earthworm population densities, the following stages were considered: cocoons, juvenile, and adult individuals, while enchytraeids were disregarded (a separate calculation was made for this group). The population densities found in the various areas were very low: 0,014, 0,021, 0,083 and 0,090 individuals per m2, respectively, in the forest, no-till and coffee plantation, subsoiled no-till and pasture areas. Cocoons and one individual from the specie Pontoscolex corethrurus were found in the forest. All individuals were juveniles in the no-till and coffee plantation areas. However, population densities of 0,021 and 0,201 enchytraeid individuals of the genus Fridericia per m2 were found in these areas. Only a specie from de family Ocnerodrilidae was found in the subsoiled no-till
area and enchytraeids with population density of 0,076 per m2. Of the earthworm total found in the pasture, 45% were cocoons; of the remaining 55%, 25% were juvenile individuals of family Glossoscolecidae, 25% were individuals of the genus Fimoscolex, and 50% were of the specie Glossoscolex colonorum. It is worth to point out that all adult and juvenile individuals found were in aestivation. This fact, as well as their low population densities can be explained by the prolonged drought period that occurred in the region (3 months). Evaluations during the rainy period are required to better understand the results obtained. MenosSoil alterations, such as oscillations in temperature, moisture, and organic matter contents,
mainly resulting from agricultural activity, have an impact on both the number and species of earthworms in the soil. The objective of this paper was to identify earthworm species in
agroecosystems. The study was conducted in the cities of Rolândia and Arapongas - PR, Brazil, in five areas: 1) no-till (35 years); 2) subsoiled no-till; 3) pasture; 4) coffee plantation; and 5) native forest. In all areas the soil was classified as Typic Acrudox (Dystroferric Red Latosoil). Nine samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-30 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were then counted and separated into cocoons, juveniles, and adults and identified at the family, genus and specie levels. In order to calculate earthworm population densities, the following stages were considered: cocoons, juvenile, and adult individuals, while enchytraeids were disregarded (a separate calculation was made for this group). The population densities found in the various areas were very low: 0,014, 0,021, 0,083 and 0,090 individuals per m2, respectively, in the forest, no-till and coffee plantation, subsoiled no-till and pasture areas. Cocoons and one individual from the specie Pontoscolex corethrurus were found in th... Mostrar Tudo |
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LEADER 03079naa a2200145 a 4500 001 1314765 005 2008-09-05 008 2008 bl --- 0-- u #d 100 1 $aBARTZ, M. L. C. 245 $aEarthworms in agroecosystems of Northern Paraná, Brazil. 260 $c2008 520 $aSoil alterations, such as oscillations in temperature, moisture, and organic matter contents, mainly resulting from agricultural activity, have an impact on both the number and species of earthworms in the soil. The objective of this paper was to identify earthworm species in agroecosystems. The study was conducted in the cities of Rolândia and Arapongas - PR, Brazil, in five areas: 1) no-till (35 years); 2) subsoiled no-till; 3) pasture; 4) coffee plantation; and 5) native forest. In all areas the soil was classified as Typic Acrudox (Dystroferric Red Latosoil). Nine samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-30 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were then counted and separated into cocoons, juveniles, and adults and identified at the family, genus and specie levels. In order to calculate earthworm population densities, the following stages were considered: cocoons, juvenile, and adult individuals, while enchytraeids were disregarded (a separate calculation was made for this group). The population densities found in the various areas were very low: 0,014, 0,021, 0,083 and 0,090 individuals per m2, respectively, in the forest, no-till and coffee plantation, subsoiled no-till and pasture areas. Cocoons and one individual from the specie Pontoscolex corethrurus were found in the forest. All individuals were juveniles in the no-till and coffee plantation areas. However, population densities of 0,021 and 0,201 enchytraeid individuals of the genus Fridericia per m2 were found in these areas. Only a specie from de family Ocnerodrilidae was found in the subsoiled no-till area and enchytraeids with population density of 0,076 per m2. Of the earthworm total found in the pasture, 45% were cocoons; of the remaining 55%, 25% were juvenile individuals of family Glossoscolecidae, 25% were individuals of the genus Fimoscolex, and 50% were of the specie Glossoscolex colonorum. It is worth to point out that all adult and juvenile individuals found were in aestivation. This fact, as well as their low population densities can be explained by the prolonged drought period that occurred in the region (3 months). Evaluations during the rainy period are required to better understand the results obtained. 700 1 $aPASINI, A. 700 1 $aBROWN, G. G. 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 : 150 | |
8. | | BARTZ, M. L. C.; PASINI, A.; BROWN, G. G. Earthworm richness, abundance and biomass in different land use systems in northern Paraná, Brazil (Oligochaeta). In: PAVLÍCEK, T.; CARDET, P.; ALMEIDA, M. T.; PASCOAL, C.; CÁSSIO, F. (Ed.). Advances in earthworm taxonomy VI (Annelida: Oligochaeta). Heidelberg: Kasparek Verlag, 2014. p. 59-73. Presented at the 6th International Oligochaete Taxonomy Meeting, Palmeira de Faro, Portugal, 2013.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Florestas. |
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9. | | BARTZ, M. L. C.; PASINI, A.; BROWN, G. G. Earthworms in agroecosystems of Northern Paraná, Brazil. 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.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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10. | | BARTZ, M. L. C.; PASINI, A.; BROWN, G. G. Earthworms from Mato Grosso, Brazil, and new records of species from the state. Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 44, n. 8, p. 934-939, ago. 2009.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Florestas; Embrapa Unidades Centrais. |
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16. | | SMOKANIT, M.; BROWN, G. G.; NIVA, C. C.; SAUTTER, K. D.; BARTZ, M. L. C. Biodiversidade da macrofauna edáfica em parques urbanos de Curitiba, Paraná, Brasil. In: ENCONTRO DE PESQUISA E INICIAÇÃO CIENTÍFICA DA UNIVERSIDADE POSITIVO, 7., 2016, Curitiba. Anais... Curitiba: Universidade Positivo, 2016. 2 p.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Cerrados; Embrapa Florestas. |
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17. | | FERNANDES, J. de O.; PASINI, A.; BROWN, G. G.; BARTZ, M. L. C.; MARTINS, P. T. Ants as bioindicators in agroecosystems of Londrina, PR, Brazil. 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.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 150 | |
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