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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
27/01/2011 |
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Data da última atualização: |
20/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. D. de; HAMILTON, S. K.; JACOBI, C. M. |
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Afiliação: |
MARCIA DIVINA DE OLIVEIRA, CPAP; STEPHEN K. HAMILTON, MICHIGAN STATE UNIVERSITY; CLAUDIA M. JACOBI, FEDERSL UNIVERSITY OF MINAS GERAIS. |
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Título: |
Forecasting the expansion of the invasive golden mussel Limnoperna fortunei in Brazilian and North American rivers based on its occurrence in the Paraguay River and Pantanal wetland of Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Aquatic Invasions, v.5, n. 1, p. 59-73, 2010. |
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Idioma: |
Inglês |
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Notas: |
Proceedings of the 16th International Conference on Aquatic Invasive Species. |
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Conteúdo: |
The bivalve Limnoperna fortunei (Dunker, 1857), also called golden mussel, is native to Asia but becoming dispersed around the world. The golden mussel resembles the invasive dreissenid bivalves in many respects, and although much less studied it evidently has broader environmental tolerances. The golden mussel was introduced into the La Plata River estuary (South America) and quickly expanded upstream to the north, into the tropical Paraguay River reaching a large floodplain area in Brazil known as the Pantanal wetland. The golden mussel tolerates environmental conditions in the Pantanal that would be inhospitable for most bivalves, but mussel mortality has been observed during the most extreme oxygen depletion events. Based on knowledge about the limiting factors for the golden mussel in the Pantanal wetland, its potential distribution was predicted for the remainder of the Paraguay River basin where the species is not present, as well as in other river systems throughout Brazil. Forecasts of potential distribution in Brazilian river systems were based on physicochemical limitations for shell calcification, and specifically on lower thresholds of dissolved calcium concentrations and the calcium carbonate (calcite) index of saturation, which may be a better indicator of calcification potential in low-calcium waters than calcium concentration alone. In addition to examining spatial patterns in calcium and calcification potential, these and other limnological and climate variables were used in ecological niche modeling using GARP and Maxent algorithms. Forecasts of potential distributions in three major North American river systems (Mississippi, Colorado, and Rio Grande) were based mainly on water temperature because calcium availability and calcification evidently would not be limiting to golden mussel establishment in those waters. Due to the greater tolerance of the golden mussel to conditions known to limit other bivalves, as well as its greater ability for shell calcification in low-calcium water, the golden mussel could potentially become broadly distributed throughout Brazil. According to its thermal tolerance L. fortunei could become established in the Mississippi, Colorado and Rio Grande drainage systems, although the northern Mississippi River system including the Missouri River may be too cool in the winter to support the golden mussel. MenosThe bivalve Limnoperna fortunei (Dunker, 1857), also called golden mussel, is native to Asia but becoming dispersed around the world. The golden mussel resembles the invasive dreissenid bivalves in many respects, and although much less studied it evidently has broader environmental tolerances. The golden mussel was introduced into the La Plata River estuary (South America) and quickly expanded upstream to the north, into the tropical Paraguay River reaching a large floodplain area in Brazil known as the Pantanal wetland. The golden mussel tolerates environmental conditions in the Pantanal that would be inhospitable for most bivalves, but mussel mortality has been observed during the most extreme oxygen depletion events. Based on knowledge about the limiting factors for the golden mussel in the Pantanal wetland, its potential distribution was predicted for the remainder of the Paraguay River basin where the species is not present, as well as in other river systems throughout Brazil. Forecasts of potential distribution in Brazilian river systems were based on physicochemical limitations for shell calcification, and specifically on lower thresholds of dissolved calcium concentrations and the calcium carbonate (calcite) index of saturation, which may be a better indicator of calcification potential in low-calcium waters than calcium concentration alone. In addition to examining spatial patterns in calcium and calcification potential, these and other limnological and climate vari... Mostrar Tudo |
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Palavras-Chave: |
Biolological invasions. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/104950/1/57704.pdf
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Marc: |
LEADER 03049naa a2200169 a 4500
001 1874845
005 2017-07-20
008 2010 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, M. D. de
245 $aForecasting the expansion of the invasive golden mussel Limnoperna fortunei in Brazilian and North American rivers based on its occurrence in the Paraguay River and Pantanal wetland of Brazil.
260 $c2010
500 $aProceedings of the 16th International Conference on Aquatic Invasive Species.
520 $aThe bivalve Limnoperna fortunei (Dunker, 1857), also called golden mussel, is native to Asia but becoming dispersed around the world. The golden mussel resembles the invasive dreissenid bivalves in many respects, and although much less studied it evidently has broader environmental tolerances. The golden mussel was introduced into the La Plata River estuary (South America) and quickly expanded upstream to the north, into the tropical Paraguay River reaching a large floodplain area in Brazil known as the Pantanal wetland. The golden mussel tolerates environmental conditions in the Pantanal that would be inhospitable for most bivalves, but mussel mortality has been observed during the most extreme oxygen depletion events. Based on knowledge about the limiting factors for the golden mussel in the Pantanal wetland, its potential distribution was predicted for the remainder of the Paraguay River basin where the species is not present, as well as in other river systems throughout Brazil. Forecasts of potential distribution in Brazilian river systems were based on physicochemical limitations for shell calcification, and specifically on lower thresholds of dissolved calcium concentrations and the calcium carbonate (calcite) index of saturation, which may be a better indicator of calcification potential in low-calcium waters than calcium concentration alone. In addition to examining spatial patterns in calcium and calcification potential, these and other limnological and climate variables were used in ecological niche modeling using GARP and Maxent algorithms. Forecasts of potential distributions in three major North American river systems (Mississippi, Colorado, and Rio Grande) were based mainly on water temperature because calcium availability and calcification evidently would not be limiting to golden mussel establishment in those waters. Due to the greater tolerance of the golden mussel to conditions known to limit other bivalves, as well as its greater ability for shell calcification in low-calcium water, the golden mussel could potentially become broadly distributed throughout Brazil. According to its thermal tolerance L. fortunei could become established in the Mississippi, Colorado and Rio Grande drainage systems, although the northern Mississippi River system including the Missouri River may be too cool in the winter to support the golden mussel.
653 $aBiolological invasions
700 1 $aHAMILTON, S. K.
700 1 $aJACOBI, C. M.
773 $tAquatic Invasions$gv.5, n. 1, p. 59-73, 2010.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
21/01/2008 |
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Data da última atualização: |
09/06/2022 |
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Autoria: |
SPEHAR, C. R. (Ed.). |
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Título: |
Amaranto: opção para diversificar a agricultura e os alimentos. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2007. |
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Páginas: |
136 p. |
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ISBN: |
978-85-7075-046-4 |
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Idioma: |
Português |
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Conteúdo: |
O esforço dos pesquisadores, de seus colaboradores e de parceiros, para adaptar o amaranto ao cultivo no Brasil, tem sido intenso, a fim de diversificar os sistemas produtivos. Problemas fitossanitários crescentes, associados ao monocultivo, ameaçam o futuro. A diversidade é o caminho ainda que, na prática, o desafio seja grande. No Cerrado e no Brasil, cresce a área sob plantio direto, por vantagens econômicas ao produtor e ao meio ambiente. O desafio consiste no seu aprimoramento, para contornar os reveses decorrentes da estreita diversidade dos cultivos. A ausência de revolvimento pode levar a um aumento em pragas de solo e doenças. O inóculo permanece nos restos de culturas e nas plantas espontâneas que resultam das sementes perdidas na colheita. Aumentar a diversidade, via rotação, sucessão e cultivos associados, não só contribui para diminuir a pressão biótica como também abre novas perspectivas à atividade econômica. A inclusão do amaranto, um pseudocereal exótico, associado às antigas civilizações da América, é parte de um trabalho pioneiro para tornar a agricultura cada vez mais eficiente, em bases sustentáveis. As atividades agrícolas, conservadoras pelos riscos inerentes, absorvem com limitação um novo componente como o amaranto. A situação atual, fruto de divulgação, mostra um interesse crescente dos Apresentação |
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Palavras-Chave: |
Cultivo; Cultivo comercial; Utilização; Utilização alimentar. |
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Thesagro: |
Amaranto de Grão; Cerrado; Fenologia; Manejo. |
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Thesaurus NAL: |
Amaranthus. |
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Categoria do assunto: |
--
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/570427/1/Amaranto-Opcao-para-diversificar-a-agricultura-e-os-alimentos-ed-01-2007-1.pdf
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Marc: |
LEADER 02014nam a2200241 a 4500
001 1570427
005 2022-06-09
008 2007 bl uuuu 00u1 u #d
020 $a978-85-7075-046-4
100 1 $aSPEHAR, C. R. (Ed.).
245 $aAmaranto$bopção para diversificar a agricultura e os alimentos.
260 $aPlanaltina, DF: Embrapa Cerrados$c2007
300 $a136 p.
520 $aO esforço dos pesquisadores, de seus colaboradores e de parceiros, para adaptar o amaranto ao cultivo no Brasil, tem sido intenso, a fim de diversificar os sistemas produtivos. Problemas fitossanitários crescentes, associados ao monocultivo, ameaçam o futuro. A diversidade é o caminho ainda que, na prática, o desafio seja grande. No Cerrado e no Brasil, cresce a área sob plantio direto, por vantagens econômicas ao produtor e ao meio ambiente. O desafio consiste no seu aprimoramento, para contornar os reveses decorrentes da estreita diversidade dos cultivos. A ausência de revolvimento pode levar a um aumento em pragas de solo e doenças. O inóculo permanece nos restos de culturas e nas plantas espontâneas que resultam das sementes perdidas na colheita. Aumentar a diversidade, via rotação, sucessão e cultivos associados, não só contribui para diminuir a pressão biótica como também abre novas perspectivas à atividade econômica. A inclusão do amaranto, um pseudocereal exótico, associado às antigas civilizações da América, é parte de um trabalho pioneiro para tornar a agricultura cada vez mais eficiente, em bases sustentáveis. As atividades agrícolas, conservadoras pelos riscos inerentes, absorvem com limitação um novo componente como o amaranto. A situação atual, fruto de divulgação, mostra um interesse crescente dos Apresentação
650 $aAmaranthus
650 $aAmaranto de Grão
650 $aCerrado
650 $aFenologia
650 $aManejo
653 $aCultivo
653 $aCultivo comercial
653 $aUtilização
653 $aUtilização alimentar
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Embrapa Cerrados (CPAC) |
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