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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
13/12/2021 |
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Data da última atualização: |
13/12/2021 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SPADOTTO, C. A.; MINGOTI, R.; BERALDO, G. N. |
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Afiliação: |
CLAUDIO APARECIDO SPADOTTO, CNPTIA; RAFAEL MINGOTI, CNPM; GIOVANNA NAVES BERALDO, UNICAMP. |
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Título: |
Identificação de áreas no estado de São Paulo vulneráveis à contaminação de água subterrânea. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 50., 2021. Anais [...]. [Jaboticabal]: SBEA, 2021. |
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Páginas: |
4 p. |
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Idioma: |
Português |
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Notas: |
CONBEA 2021. Evento on-line. |
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Conteúdo: |
RESUMO: Os solos atuam como um filtro natural e influem na vulnerabilidade de corpos de água subterrânea à contaminação por agrotóxicos e outras substâncias químicas orgânicas. Com o objetivo de caracterizar a vulnerabilidade da água subterrânea à contaminação no estado de São Paulo, em base territorial e escala exploratória, esse trabalho foi elaborado utilizando o índice TR, propriedades médias dos solos e dados de recarga hídrica líquida anual. Foi possível identificar áreas nas diferentes categorias de vulnerabilidade com base no índice TR, destacando-se áreas vulneráveis na região centro-nordeste do estado, onde ocorrem importantes atividades agrícolas. Também foi possível a identificação das classes de solos predominantes nas áreas com maior vulnerabilidade das águas subterrâneas à contaminação. |
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Palavras-Chave: |
GIS; Índice TR; SIG; Soils; Solos; Vulnerabilidade; Vulnerability. |
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Thesagro: |
Sistema de Informação Geográfica. |
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Thesaurus Nal: |
Geographic information systems. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01676nam a2200265 a 4500
001 2137629
005 2021-12-13
008 2021 bl uuuu u01u1 u #d
100 1 $aSPADOTTO, C. A.
245 $aIdentificação de áreas no estado de São Paulo vulneráveis à contaminação de água subterrânea.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 50., 2021. Anais [...]. [Jaboticabal]: SBEA$c2021
300 $a4 p.
500 $aCONBEA 2021. Evento on-line.
520 $aRESUMO: Os solos atuam como um filtro natural e influem na vulnerabilidade de corpos de água subterrânea à contaminação por agrotóxicos e outras substâncias químicas orgânicas. Com o objetivo de caracterizar a vulnerabilidade da água subterrânea à contaminação no estado de São Paulo, em base territorial e escala exploratória, esse trabalho foi elaborado utilizando o índice TR, propriedades médias dos solos e dados de recarga hídrica líquida anual. Foi possível identificar áreas nas diferentes categorias de vulnerabilidade com base no índice TR, destacando-se áreas vulneráveis na região centro-nordeste do estado, onde ocorrem importantes atividades agrícolas. Também foi possível a identificação das classes de solos predominantes nas áreas com maior vulnerabilidade das águas subterrâneas à contaminação.
650 $aGeographic information systems
650 $aSistema de Informação Geográfica
653 $aGIS
653 $aÍndice TR
653 $aSIG
653 $aSoils
653 $aSolos
653 $aVulnerabilidade
653 $aVulnerability
700 1 $aMINGOTI, R.
700 1 $aBERALDO, G. N.
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Registro original: |
Embrapa Territorial (CNPM) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
03/02/2011 |
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Data da última atualização: |
21/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CAMILO-ALVES, C. de S. e P.; MOURAO, G. de M. |
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Afiliação: |
CONSTANÇA DE SAMPAIO E PAIVA CAMILO-ALVES; GUILHERME DE MIRANDA MOURAO, CPAP. |
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Título: |
Palms use a bluffing strategy to avoid seed predation by rats in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Biotrópica, v. 42, n.2, p. 167-173, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
The goal of this study was to ascertain why the production of variable seediness is advantageous for Attalea phalerata palms. Our hypothesis was that variation reduces seed predation by the spiny rats Thrichomys pachyurus and Clyomys laticeps. Although there is a positive correlation between endocarp size and number of seeds, endocarps sometimes contain more or fewer seeds than expected; palms bluff about the number of seed per endocarp. Therefore, rats do not know how many seeds an endocarp contains. To model rats? predating behavior, we applied Charnov?s Marginal Value Theorem. The model shows that rats attack endocarps only when the energy gain is higher than the energy available in the habitat. Hence, it is not advantageous to eat all the seeds inside an endocarp. This explains why 45 percent of forest endocarps and 35 percent of savanna endocarps were still viable after predation. We then applied the model to two simulated endocarp populations with less variability in the number of seeds per endocarp size and determined that viable diaspores after predation were reduced to 15 percent. With less variability, palms cannot bluff about the number of seeds inside endocarps and predators can predict accurately how many seeds they should try to eat. Uncertainty about the number of seeds diminished predation but gave selective advantage to multiseeded fruits. Therefore, the bluffing strategy would be evolutionarily stable only if it were counterbalanced by other forces. Otherwise, predators would win the bluffing game. MenosThe goal of this study was to ascertain why the production of variable seediness is advantageous for Attalea phalerata palms. Our hypothesis was that variation reduces seed predation by the spiny rats Thrichomys pachyurus and Clyomys laticeps. Although there is a positive correlation between endocarp size and number of seeds, endocarps sometimes contain more or fewer seeds than expected; palms bluff about the number of seed per endocarp. Therefore, rats do not know how many seeds an endocarp contains. To model rats? predating behavior, we applied Charnov?s Marginal Value Theorem. The model shows that rats attack endocarps only when the energy gain is higher than the energy available in the habitat. Hence, it is not advantageous to eat all the seeds inside an endocarp. This explains why 45 percent of forest endocarps and 35 percent of savanna endocarps were still viable after predation. We then applied the model to two simulated endocarp populations with less variability in the number of seeds per endocarp size and determined that viable diaspores after predation were reduced to 15 percent. With less variability, palms cannot bluff about the number of seeds inside endocarps and predators can predict accurately how many seeds they should try to eat. Uncertainty about the number of seeds diminished predation but gave selective advantage to multiseeded fruits. Therefore, the bluffing strategy would be evolutionarily stable only if it were counterbalanced by other forces. Otherwi... Mostrar Tudo |
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Palavras-Chave: |
Clyomys laticeps; Marginal value theorem; Multiseeded fruits; Predator prey interaction; Thrichomys pachyurus. |
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Thesaurus NAL: |
Attalea phalerata; Pantanal. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26312/1/palms-use-a-bluffing-strategy.pdf
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Marc: |
LEADER 02171naa a2200217 a 4500
001 1875543
005 2017-07-21
008 2010 bl uuuu u00u1 u #d
100 1 $aCAMILO-ALVES, C. de S. e P.
245 $aPalms use a bluffing strategy to avoid seed predation by rats in Brazil.
260 $c2010
520 $aThe goal of this study was to ascertain why the production of variable seediness is advantageous for Attalea phalerata palms. Our hypothesis was that variation reduces seed predation by the spiny rats Thrichomys pachyurus and Clyomys laticeps. Although there is a positive correlation between endocarp size and number of seeds, endocarps sometimes contain more or fewer seeds than expected; palms bluff about the number of seed per endocarp. Therefore, rats do not know how many seeds an endocarp contains. To model rats? predating behavior, we applied Charnov?s Marginal Value Theorem. The model shows that rats attack endocarps only when the energy gain is higher than the energy available in the habitat. Hence, it is not advantageous to eat all the seeds inside an endocarp. This explains why 45 percent of forest endocarps and 35 percent of savanna endocarps were still viable after predation. We then applied the model to two simulated endocarp populations with less variability in the number of seeds per endocarp size and determined that viable diaspores after predation were reduced to 15 percent. With less variability, palms cannot bluff about the number of seeds inside endocarps and predators can predict accurately how many seeds they should try to eat. Uncertainty about the number of seeds diminished predation but gave selective advantage to multiseeded fruits. Therefore, the bluffing strategy would be evolutionarily stable only if it were counterbalanced by other forces. Otherwise, predators would win the bluffing game.
650 $aAttalea phalerata
650 $aPantanal
653 $aClyomys laticeps
653 $aMarginal value theorem
653 $aMultiseeded fruits
653 $aPredator prey interaction
653 $aThrichomys pachyurus
700 1 $aMOURAO, G. de M.
773 $tBiotrópica$gv. 42, n.2, p. 167-173, 2010.
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Embrapa Pantanal (CPAP) |
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