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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
05/12/2016 |
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Data da última atualização: |
13/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NEVES, L. R.; BRAGA, E. C. R.; TAVARES-DIAS, M. |
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Afiliação: |
LIGIA RIGÔR NEVES, UNIFAP; EVELYN CRISTHINE ROCHA BRAGA, UEAP; MARCOS TAVARES-DIAS, CPAF-AP. |
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Título: |
Diversity of parasites in Curimata incompta (Curimatidae), a host from Amazon river system in Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Parasitic Diseases, v. 40, n. 4, p. 1296-1300, Dec. 2016. |
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DOI: |
10.1007/s12639-015-0674-0 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper is the first study on host-parasite relationship in wild Curimata incompta Vari, 1984 (Curimatidae) from Amazon river system, Northern Brazil. In 40 specimens examined from December 2012 to November 2013, 615,818 parasites were collected, such as Ichthyophthirius multifiliis, Piscinoodinium pilullare, Urocleidoides sp., Posthodiplostomum sp., Gorytocephalus elongorchis and Braga patagonica. The parasites' component community had a low Brillouin diversity (0.16 ± 0.15), a low species richness (3.1 ± 0.7), a low evenness (0.09 ± 0.09) and a high dominance of Berger-Parker (0.96 ± 0.06). I. multifiliis was the dominant parasite species and it showed the highest prevalence and intensity in the host population. There was an aggregate dispersion of parasites, but the low parasitism did not affect the body condition of the host. The occurrence of parasites in C. incompta was due to their life habits and food behavior. This study, besides expanding the geographical distribution of G. elongorchis in Brazil, records the first occurrence of these six parasites in C. incompta. |
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Palavras-Chave: |
Animal parasite; Parasito animal. |
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Thesagro: |
Ecologia animal; Peixe de água doce. |
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Thesaurus Nal: |
Animal ecology; Freshwater fish. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151205/1/CPAF-AP-2016-Diversity-of-parasites-in-Curimata.pdf
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Marc: |
LEADER 01818naa a2200229 a 4500
001 2057900
005 2017-01-13
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s12639-015-0674-0$2DOI
100 1 $aNEVES, L. R.
245 $aDiversity of parasites in Curimata incompta (Curimatidae), a host from Amazon river system in Brazil.$h[electronic resource]
260 $c2016
520 $aThis paper is the first study on host-parasite relationship in wild Curimata incompta Vari, 1984 (Curimatidae) from Amazon river system, Northern Brazil. In 40 specimens examined from December 2012 to November 2013, 615,818 parasites were collected, such as Ichthyophthirius multifiliis, Piscinoodinium pilullare, Urocleidoides sp., Posthodiplostomum sp., Gorytocephalus elongorchis and Braga patagonica. The parasites' component community had a low Brillouin diversity (0.16 ± 0.15), a low species richness (3.1 ± 0.7), a low evenness (0.09 ± 0.09) and a high dominance of Berger-Parker (0.96 ± 0.06). I. multifiliis was the dominant parasite species and it showed the highest prevalence and intensity in the host population. There was an aggregate dispersion of parasites, but the low parasitism did not affect the body condition of the host. The occurrence of parasites in C. incompta was due to their life habits and food behavior. This study, besides expanding the geographical distribution of G. elongorchis in Brazil, records the first occurrence of these six parasites in C. incompta.
650 $aAnimal ecology
650 $aFreshwater fish
650 $aEcologia animal
650 $aPeixe de água doce
653 $aAnimal parasite
653 $aParasito animal
700 1 $aBRAGA, E. C. R.
700 1 $aTAVARES-DIAS, M.
773 $tJournal of Parasitic Diseases$gv. 40, n. 4, p. 1296-1300, Dec. 2016.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
31/01/2008 |
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Data da última atualização: |
23/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
BELK, E. L.; MARKEWITZ, D.; RASMUSSEN, T. C.; CARVALHO, E. J. M.; NEPSTAD, D. C.; DAVIDSON, E. A. |
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Afiliação: |
Elisabeth L. Belk, University of Georgia; Daniel Markewitz, University of Georgia; Todd C. Rasmussen, University of Georgia; EDUARDO JORGE MAKLOUF CARVALHO, CPATU; Daniel C. Nepstad, Woods Hole Research Center; Eric A. Davidson, Woods Hole Research Center. |
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Título: |
Modeling the effects of throughfall reduction on soil water content in a Brazilian Oxisol under a moist tropical forest. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Water Resources Research, v. 43, n. 8, Aug. 2007. |
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DOI: |
10.1029/2006WR005493 |
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Idioma: |
Inglês |
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Notas: |
WR 005493. |
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Conteúdo: |
Access to water reserves in deep soil during drought periods determines whether or not the tropical moist forests of Amazonia will be buffered from the deleterious effects of water deficits. Changing climatic conditions are predicted to increase periods of drought in Amazonian forests and may lead to increased tree mortality, changes in forest composition, or greater susceptibility to fire. A throughfall reduction experiment has been established in the Tapajós National Forest of east-central Amazonia (Brazil) to test the potential effects of severe water stress during prolonged droughts. Using time domain reflectometry observations of water contents from this experiment, we have developed a dynamic, one-dimensional, vertical flow model to enhance our understanding of hydrologic processes within these tall-stature forests on well-drained, upland, deep Oxisols and to simulate changes in the distribution of soil water. Simulations using 960 days of data accurately captured mild soil water depletion near the surface after the first treatment year and decreasing soil moisture at depth during the second treatment year. The model is sensitive to the water retention and unsaturated flow equation parameters, specifically the van Genuchten parameters ?s, ?r, and n, but less sensitive to Ks and ?. The low root-mean-square error between observed and predicted volumetric soil water content suggests that this vertical flow model captures the most important hydrologic processes in the upper landscape position of this study site. The model indicates that present rates of evapotranspiration within the exclusion plot have been sustained at the expense of soil water storage. MenosAccess to water reserves in deep soil during drought periods determines whether or not the tropical moist forests of Amazonia will be buffered from the deleterious effects of water deficits. Changing climatic conditions are predicted to increase periods of drought in Amazonian forests and may lead to increased tree mortality, changes in forest composition, or greater susceptibility to fire. A throughfall reduction experiment has been established in the Tapajós National Forest of east-central Amazonia (Brazil) to test the potential effects of severe water stress during prolonged droughts. Using time domain reflectometry observations of water contents from this experiment, we have developed a dynamic, one-dimensional, vertical flow model to enhance our understanding of hydrologic processes within these tall-stature forests on well-drained, upland, deep Oxisols and to simulate changes in the distribution of soil water. Simulations using 960 days of data accurately captured mild soil water depletion near the surface after the first treatment year and decreasing soil moisture at depth during the second treatment year. The model is sensitive to the water retention and unsaturated flow equation parameters, specifically the van Genuchten parameters ?s, ?r, and n, but less sensitive to Ks and ?. The low root-mean-square error between observed and predicted volumetric soil water content suggests that this vertical flow model captures the most important hydrologic processes in the uppe... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Água do Solo; Floresta Tropical. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02441naa a2200253 a 4500
001 1409196
005 2022-11-23
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1029/2006WR005493$2DOI
100 1 $aBELK, E. L.
245 $aModeling the effects of throughfall reduction on soil water content in a Brazilian Oxisol under a moist tropical forest.$h[electronic resource]
260 $c2007
500 $aWR 005493.
520 $aAccess to water reserves in deep soil during drought periods determines whether or not the tropical moist forests of Amazonia will be buffered from the deleterious effects of water deficits. Changing climatic conditions are predicted to increase periods of drought in Amazonian forests and may lead to increased tree mortality, changes in forest composition, or greater susceptibility to fire. A throughfall reduction experiment has been established in the Tapajós National Forest of east-central Amazonia (Brazil) to test the potential effects of severe water stress during prolonged droughts. Using time domain reflectometry observations of water contents from this experiment, we have developed a dynamic, one-dimensional, vertical flow model to enhance our understanding of hydrologic processes within these tall-stature forests on well-drained, upland, deep Oxisols and to simulate changes in the distribution of soil water. Simulations using 960 days of data accurately captured mild soil water depletion near the surface after the first treatment year and decreasing soil moisture at depth during the second treatment year. The model is sensitive to the water retention and unsaturated flow equation parameters, specifically the van Genuchten parameters ?s, ?r, and n, but less sensitive to Ks and ?. The low root-mean-square error between observed and predicted volumetric soil water content suggests that this vertical flow model captures the most important hydrologic processes in the upper landscape position of this study site. The model indicates that present rates of evapotranspiration within the exclusion plot have been sustained at the expense of soil water storage.
650 $aAmazonia
650 $aÁgua do Solo
650 $aFloresta Tropical
653 $aBrasil
700 1 $aMARKEWITZ, D.
700 1 $aRASMUSSEN, T. C.
700 1 $aCARVALHO, E. J. M.
700 1 $aNEPSTAD, D. C.
700 1 $aDAVIDSON, E. A.
773 $tWater Resources Research$gv. 43, n. 8, Aug. 2007.
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Embrapa Amazônia Oriental (CPATU) |
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