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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Florestas. |
Data corrente: |
17/07/2023 |
Data da última atualização: |
17/07/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
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. |
Afiliação: |
ANA C. CONRADO, UNIVERSIDADE FEDERAL DO PARANÁ; WILIAN C. DEMETRIO, UNIVERSIDADE FEDERAL DO PARANÁ; DAVID W. G. STANTON, CARDIFF UNIVERSITY; MARIE L. C. BARTZ, UNIVERSITY OF COIMBRA; SAMUEL W. JAMES, MAHARISHI INTERNATIONAL UNIVERSITY; ALESSANDRA SANTOS, UNIVERSIDADE FEDERAL DO PARANÁ; ELODIE DA SILVA, Bolsista CNPF; TALITA FERREIRA, UNIVERSIDADE FEDERAL DO PARANÁ; AGNO N. S. ACIOLI, UNIVERSIDADE FEDERAL DO AMAZONAS; ALEXANDRE C. FERREIRA, UNIVERSIDADE FEDERAL DO PARANÁ; LILIANNE S. MAIA, UNIVERSIDADE FEDERAL DO PARANÁ; TELMA A. C. SILVA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; PATRICK LAVELLE, INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT; ELENA VELASQUEZ, UNIVERSIDAD NACIONAL DE COLOMBIA; SANDRA C. TAPIA-CORAL, SERVIÇO NACIONAL DE APRENDIZAGEM, SENA REGIONAL AMAZONAS; ALEKSANDER WESTPHAL MUNIZ, CPAA; RODRIGO F. SEGALLA, UNIVERSIDADE FEDERAL DO PARANÁ; THIBAUD DECAËNS, CEFE, UNIV MONTPELLIER; HERLON S. NADOLNY, UNIVERSIDADE FEDERAL DO PARANÁ; CLARA P. PEÑA-VENEGAS, INSTITUTO AMAZÓNICO DE INVESTIGACIONES CIENTÍFICAS SINCHI; AMARILDO PASINI, UNIVERSIDADE ESTADUAL DE LONDRINA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; PETER KILLE, CARDIFF UNIVERSITY; GEORGE GARDNER BROWN, CNPF; LUÍS CUNHA, UNIVERSITY OF COIMBRA. |
Título: |
Amazonian earthworm biodiversity is heavily impacted by ancient and recent human disturbance. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Science of the Total Environment, v. 895, art. 165087, 2023. |
DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2023.165087 |
Idioma: |
Inglês |
Conteúdo: |
Despite the importance of earthworms for soil formation, more is needed to know about how Pre-Columbian modifications to soils and the landscape. Gaining a deeper understanding is essential for comprehending the historical drivers of earthworm communities and the development of effective conservation strategies in the Amazon rainforest. Human disturbance can significantly impact earthworm diversity, especially in rainforest soils, and in the particular case of the Amazonian rainforest, both recent and ancient anthropic practices may be important. Amazonian Dark Earths (ADEs) are fertile soils found throughout the Amazon Basin, created by sedentary habits and intensification patterns of pre-Colombian societies primarily developed in the second part of the Holocene period. We have sampled earthworm com-munities in three Brazilian Amazonian (ADEs) and adjacent reference soils (REF) under old and young forests and monocultures. To better assess taxonomic richness, we used morphology and the barcode region of the COI gene to identify juveniles and cocoons and delimit Molecular Operational Taxonomic Units (MOTUs). Here we suggest using Integrated Operational Taxonomical units (IOTUs) which combine both morphological and molecular data and provide a more comprehensive assessment of diversity, while MOTUs only rely on molecular data. A total of 970 individuals were collected, resulting in 51 taxonomic units (IOTUs, MOTUs, and morphospecies combined). From this total, 24 taxonomic units were unique to REF soils, 17 to ADEs, and ten were shared between both soils. The highest richness was found in old forest sites for ADEs (12 taxonomic units) and REFs (21 taxonomic units). The beta-diversity calculations reveal a high species turnover between ADEs and REF soils, providing evidence that ADEs and REFs possess distinct soil biota. Furthermore, results suggest that ADE sites, formed by Pre-Columbian human activities, conserve a high number of native species in the landscape and maintain a high abundance, despite their long-term nature. MenosDespite the importance of earthworms for soil formation, more is needed to know about how Pre-Columbian modifications to soils and the landscape. Gaining a deeper understanding is essential for comprehending the historical drivers of earthworm communities and the development of effective conservation strategies in the Amazon rainforest. Human disturbance can significantly impact earthworm diversity, especially in rainforest soils, and in the particular case of the Amazonian rainforest, both recent and ancient anthropic practices may be important. Amazonian Dark Earths (ADEs) are fertile soils found throughout the Amazon Basin, created by sedentary habits and intensification patterns of pre-Colombian societies primarily developed in the second part of the Holocene period. We have sampled earthworm com-munities in three Brazilian Amazonian (ADEs) and adjacent reference soils (REF) under old and young forests and monocultures. To better assess taxonomic richness, we used morphology and the barcode region of the COI gene to identify juveniles and cocoons and delimit Molecular Operational Taxonomic Units (MOTUs). Here we suggest using Integrated Operational Taxonomical units (IOTUs) which combine both morphological and molecular data and provide a more comprehensive assessment of diversity, while MOTUs only rely on molecular data. A total of 970 individuals were collected, resulting in 51 taxonomic units (IOTUs, MOTUs, and morphospecies combined). From this total, 24 taxonomic un... Mostrar Tudo |
Palavras-Chave: |
Amazonian Dark Earths; Crassiclitellata; Land-use change. |
Thesagro: |
Agricultura; Minhoca; Uso da Terra. |
Thesaurus Nal: |
Agriculture; DNA barcoding; Terra preta. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 03562naa a2200541 a 4500 001 2154962 005 2023-07-17 008 2023 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2023.165087$2DOI 100 1 $aCONRADO, A. C. 245 $aAmazonian earthworm biodiversity is heavily impacted by ancient and recent human disturbance.$h[electronic resource] 260 $c2023 520 $aDespite the importance of earthworms for soil formation, more is needed to know about how Pre-Columbian modifications to soils and the landscape. Gaining a deeper understanding is essential for comprehending the historical drivers of earthworm communities and the development of effective conservation strategies in the Amazon rainforest. Human disturbance can significantly impact earthworm diversity, especially in rainforest soils, and in the particular case of the Amazonian rainforest, both recent and ancient anthropic practices may be important. Amazonian Dark Earths (ADEs) are fertile soils found throughout the Amazon Basin, created by sedentary habits and intensification patterns of pre-Colombian societies primarily developed in the second part of the Holocene period. We have sampled earthworm com-munities in three Brazilian Amazonian (ADEs) and adjacent reference soils (REF) under old and young forests and monocultures. To better assess taxonomic richness, we used morphology and the barcode region of the COI gene to identify juveniles and cocoons and delimit Molecular Operational Taxonomic Units (MOTUs). Here we suggest using Integrated Operational Taxonomical units (IOTUs) which combine both morphological and molecular data and provide a more comprehensive assessment of diversity, while MOTUs only rely on molecular data. A total of 970 individuals were collected, resulting in 51 taxonomic units (IOTUs, MOTUs, and morphospecies combined). From this total, 24 taxonomic units were unique to REF soils, 17 to ADEs, and ten were shared between both soils. The highest richness was found in old forest sites for ADEs (12 taxonomic units) and REFs (21 taxonomic units). The beta-diversity calculations reveal a high species turnover between ADEs and REF soils, providing evidence that ADEs and REFs possess distinct soil biota. Furthermore, results suggest that ADE sites, formed by Pre-Columbian human activities, conserve a high number of native species in the landscape and maintain a high abundance, despite their long-term nature. 650 $aAgriculture 650 $aDNA barcoding 650 $aTerra preta 650 $aAgricultura 650 $aMinhoca 650 $aUso da Terra 653 $aAmazonian Dark Earths 653 $aCrassiclitellata 653 $aLand-use change 700 1 $aDEMETRIO, W. C. 700 1 $aSTANTON, D. W. G. 700 1 $aBARTZ, M. L. C. 700 1 $aJAMES, S. W. 700 1 $aSANTOS, A. 700 1 $aSILVA, E. da 700 1 $aFERREIRA, T. 700 1 $aACIOLI, A. N. S. 700 1 $aFERREIRA, A. C. 700 1 $aMAIA, L. S. 700 1 $aSILVA, T. A. C. 700 1 $aLAVELLE, P. 700 1 $aVELASQUEZ, E. 700 1 $aTAPIA-CORAL, S. C. 700 1 $aMUNIZ, A. W. 700 1 $aSEGALLA, R. F. 700 1 $aDECAËNS, T. 700 1 $aNADOLNY, H. S. 700 1 $aPEÑA-VENEGAS, C. 700 1 $aPASINI, A. 700 1 $aOLIVEIRA JUNIOR, R. C. de 700 1 $aTPI NETWORK 700 1 $aKILLE, P. 700 1 $aBROWN, G. G. 700 1 $aCUNHA, L. 773 $tScience of the Total Environment$gv. 895, art. 165087, 2023.
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Embrapa Amazônia Ocidental (CPAA) |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
15/08/2016 |
Data da última atualização: |
21/01/2020 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
BONES, C. C.; ROMANI, L. A. S.; SOUSA, E. P. M. de. |
Afiliação: |
CHRISTIAN C. BONES, ICMC/USP; LUCIANA ALVIM SANTOS ROMANI, CNPTIA; ELAINE P. M. DE SOUSA, ICMC/USP. |
Título: |
Improving multivariate data streams clustering. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Procedia Computer Science, v. 80, p. 461-471, 2016. |
DOI: |
10.1016/j.procs.2016.05.325 |
Idioma: |
Inglês |
Notas: |
Edição dos Proceedings do 16th International Conference on Computational Science, San Diego, 2016. |
Conteúdo: |
Clustering data streams is an important task in data mining research. Recently, some algorithms have been proposed to cluster data streams as a whole, but just few of them deal with multivariate data streams. Even so, these algorithms merely aggregate the attributes without touching upon the correlation among them. In order to overcome this issue, we propose a new framework to cluster multivariate data streams based on their evolving behavior over time, exploring the correlations among their attributes by computing the fractal dimension. Experimental results with climate data streams show that the clusters' quality and compactness can be improved compared to the competing method, leading to the thoughtfulness that attributes correlations cannot be put aside. In fact, the clusters' compactness are 7 to 25 times better using our method. Our framework also proves to be an useful tool to assist meteorologists in understanding the climate behavior along a period of time. |
Palavras-Chave: |
Agrupamento de dados; Clusterização de dados; Data mining; Data streams; Dimensão fractal; Mineração de dados. |
Thesaurus NAL: |
Cluster analysis; Fractal dimensions. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146412/1/AP-improving-Bones-etal.pdf
|
Marc: |
LEADER 01810nam a2200253 a 4500 001 2050917 005 2020-01-21 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1016/j.procs.2016.05.325$2DOI 100 1 $aBONES, C. C. 245 $aImproving multivariate data streams clustering.$h[electronic resource] 260 $aProcedia Computer Science, v. 80, p. 461-471$c2016 500 $aEdição dos Proceedings do 16th International Conference on Computational Science, San Diego, 2016. 520 $aClustering data streams is an important task in data mining research. Recently, some algorithms have been proposed to cluster data streams as a whole, but just few of them deal with multivariate data streams. Even so, these algorithms merely aggregate the attributes without touching upon the correlation among them. In order to overcome this issue, we propose a new framework to cluster multivariate data streams based on their evolving behavior over time, exploring the correlations among their attributes by computing the fractal dimension. Experimental results with climate data streams show that the clusters' quality and compactness can be improved compared to the competing method, leading to the thoughtfulness that attributes correlations cannot be put aside. In fact, the clusters' compactness are 7 to 25 times better using our method. Our framework also proves to be an useful tool to assist meteorologists in understanding the climate behavior along a period of time. 650 $aCluster analysis 650 $aFractal dimensions 653 $aAgrupamento de dados 653 $aClusterização de dados 653 $aData mining 653 $aData streams 653 $aDimensão fractal 653 $aMineração de dados 700 1 $aROMANI, L. A. S. 700 1 $aSOUSA, E. P. M. de
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