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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
22/01/2018 |
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Data da última atualização: |
22/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CUNHA, A. C. da; MUSTIN, K.; SANTOS, E. S. dos; SANTOS, E. W. G. dos; GUEDES, M. C.; CUNHA, H. F. A.; ROSMAN, P. C. C.; STERNBERG, L. da S. L. |
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Afiliação: |
ALAN CAVALCANTI DA CUNHA, Unifap; KAREN MUSTIN, Bolsista CPAF-AP; ELDO SILVA DOS SANTOS, Unifap; EWERTON WANDERSON GONCALVES DOS SANTOS, Unifap; MARCELINO CARNEIRO GUEDES, CPAF-AP; HELENILZA FERREIRA ALBUQUERQUE CUNHA, Unifap; PAULO CESAR COLONNA ROSMAN, COPPE; LEONEL DA SILVEIRA LOBO STERNBERG, University of Miami. |
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Título: |
Hydrodynamics and seed dispersal in the lower Amazon. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Freshwater Biology, p. 1-9, 2017. |
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DOI: |
10.1111/fwb.12982 |
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Idioma: |
Inglês |
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Conteúdo: |
The transport of seeds by water, i.e. hydrochory, is a key mechanism of long-distance dispersal constrained by the attributes of the seed and hydrodynamics. In the freshwater Amazon estuary, river hydrodynamics are influenced by seasonal changes in precipitation and tidal cycles. It is not known to what extent a hydrodynamic model may be able to predict seed dispersal. Here we parameterised a simulation model (SisBaHia) to estimate maximum seed dispersal distances per tidal cycle, which were then compared with data from in situ seed dispersal experiments. The study was conducted along a 27-km stretch of a tributary of the Amazon estuary, using the seeds of a widely distributed riparian tree?Carapa guianensis (Meliaceae). Based on the simulation model, maximum potential seed dispersal distance was higher in the rainy season (c. 8.7 km) when compared with the dry season (5.6 km), for one tidal cycle (12 hr). The seeds of C. guianensis were dispersed further during the ebb than flood tide during the rainy season, the period of seed dispersal. Average dispersal distances observed in seed dispersal experiments conducted during the rainy season, and those predicted by SisBaHia for the same period were within the same order of magnitude. The results of this study confirm that the period of higher precipitation provides favourable hydrological conditions for hydrochory in the Amazon river-estuary complex. The fact that the time taken for the tide to fall is longer in relation to the time taken for it to rise also favours the arrival of the seeds in the main channel of the Amazon, thereby increasing the probability of long-distance dispersal events. MenosThe transport of seeds by water, i.e. hydrochory, is a key mechanism of long-distance dispersal constrained by the attributes of the seed and hydrodynamics. In the freshwater Amazon estuary, river hydrodynamics are influenced by seasonal changes in precipitation and tidal cycles. It is not known to what extent a hydrodynamic model may be able to predict seed dispersal. Here we parameterised a simulation model (SisBaHia) to estimate maximum seed dispersal distances per tidal cycle, which were then compared with data from in situ seed dispersal experiments. The study was conducted along a 27-km stretch of a tributary of the Amazon estuary, using the seeds of a widely distributed riparian tree?Carapa guianensis (Meliaceae). Based on the simulation model, maximum potential seed dispersal distance was higher in the rainy season (c. 8.7 km) when compared with the dry season (5.6 km), for one tidal cycle (12 hr). The seeds of C. guianensis were dispersed further during the ebb than flood tide during the rainy season, the period of seed dispersal. Average dispersal distances observed in seed dispersal experiments conducted during the rainy season, and those predicted by SisBaHia for the same period were within the same order of magnitude. The results of this study confirm that the period of higher precipitation provides favourable hydrological conditions for hydrochory in the Amazon river-estuary complex. The fact that the time taken for the tide to fall is longer in relation to the... Mostrar Tudo |
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Palavras-Chave: |
Long-distance dispersal; Modelling; Simulation; Tidal river. |
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Thesagro: |
Carapa guianensis. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171510/1/CPAF-AP-2017-Hydrodynamics-and-seed-dispersal.pdf
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Marc: |
LEADER 02429naa a2200277 a 4500
001 2086024
005 2018-01-22
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1111/fwb.12982$2DOI
100 1 $aCUNHA, A. C. da
245 $aHydrodynamics and seed dispersal in the lower Amazon.$h[electronic resource]
260 $c2017
520 $aThe transport of seeds by water, i.e. hydrochory, is a key mechanism of long-distance dispersal constrained by the attributes of the seed and hydrodynamics. In the freshwater Amazon estuary, river hydrodynamics are influenced by seasonal changes in precipitation and tidal cycles. It is not known to what extent a hydrodynamic model may be able to predict seed dispersal. Here we parameterised a simulation model (SisBaHia) to estimate maximum seed dispersal distances per tidal cycle, which were then compared with data from in situ seed dispersal experiments. The study was conducted along a 27-km stretch of a tributary of the Amazon estuary, using the seeds of a widely distributed riparian tree?Carapa guianensis (Meliaceae). Based on the simulation model, maximum potential seed dispersal distance was higher in the rainy season (c. 8.7 km) when compared with the dry season (5.6 km), for one tidal cycle (12 hr). The seeds of C. guianensis were dispersed further during the ebb than flood tide during the rainy season, the period of seed dispersal. Average dispersal distances observed in seed dispersal experiments conducted during the rainy season, and those predicted by SisBaHia for the same period were within the same order of magnitude. The results of this study confirm that the period of higher precipitation provides favourable hydrological conditions for hydrochory in the Amazon river-estuary complex. The fact that the time taken for the tide to fall is longer in relation to the time taken for it to rise also favours the arrival of the seeds in the main channel of the Amazon, thereby increasing the probability of long-distance dispersal events.
650 $aCarapa guianensis
653 $aLong-distance dispersal
653 $aModelling
653 $aSimulation
653 $aTidal river
700 1 $aMUSTIN, K.
700 1 $aSANTOS, E. S. dos
700 1 $aSANTOS, E. W. G. dos
700 1 $aGUEDES, M. C.
700 1 $aCUNHA, H. F. A.
700 1 $aROSMAN, P. C. C.
700 1 $aSTERNBERG, L. da S. L.
773 $tFreshwater Biology, p. 1-9, 2017.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
20/12/2022 |
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Data da última atualização: |
21/12/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A.; VERNEQUE, R. da S.; FERNANDES, A. R.; MACHADO, C. H. C.; MARTINS, M. F.; REIS, D. R. de L.; BORGES, C. A. V.; VENTURA, H. T.; PEREIRA, M. A.; OLIVEIRA, J. C.; GLATZL JUNIOR, L. A.; GARCIA, A. O.; LEANDRO, F. D. |
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Afiliação: |
JOAO CLAUDIO DO CARMO PANETTO, CNPGL; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; MARCO ANTONIO MACHADO, CNPGL; RUI DA SILVA VERNEQUE, CNPGL; Associação Brasileira dos Criadores de Gir Leiteiro; Associação Brasileira dos Criadores de Gir Leiteiro; MARTA FONSECA MARTINS, CNPGL; DANIELE RIBEIRO DE LIMA REIS FAZA, CNPGL; CRISTIANO AMANCIO VIEIRA BORGES, CNPGL; Associação Brasileira de Criadores de Zebu; Associação Brasileira de Criadores de Zebu; Associação Brasileira dos Criadores de Gir Leiteiro; Universidade Federal de Juiz de Fora; Universidade Federal d Viçosa; Universidade Jose do Rosario Vellano. |
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Título: |
Providing genetics for the dairy industry in the tropics - the Brazilian Dairy Gir Breeding Program. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 12., 2022, Rotterdam. Proceedings... Rotterdam: [s.n.], 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
Milk production is usually challenging under tropical environments. Heat stress and/or recurrent parasite infestations frequently cause cattle?s reduced fitness and productivity. As a way to overcome this challenge, the Gir indicine cattle breed has increasingly been used in crossbred schemes to constitute milk production herds in Brazil and other countries in tropical regions. The Brazilian Dairy Gir Breeding Program was established in 1985, based on a partnership between the Brazilian Agricultural Research Corporation and the Brazilian Association of Dairy Gir Breeders. It was the first breeding program outlined with a progeny test for the improvement of an indicine breed for milk production in the world. Several technical innovations were employed along the time. Now, producers can access genomic predictions for thousands of Gir males and females. Those predictions are used mainly by Brazilian breeders, but also increasingly in other tropical countries from South America, Central America and Asia. |
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Thesagro: |
Gado Gir; Gado Leiteiro; Indústria; Laticínio; Melhoramento Genético Animal. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150078/1/Providing-genetics-for-the-dairy-industry-in-the-tropics-the-Brazilian-Daury-Gir.pdf
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Marc: |
LEADER 02085nam a2200337 a 4500
001 2150078
005 2022-12-21
008 2022 bl uuuu u00u1 u #d
100 1 $aPANETTO, J. C. do C.
245 $aProviding genetics for the dairy industry in the tropics - the Brazilian Dairy Gir Breeding Program.$h[electronic resource]
260 $aIn: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 12., 2022, Rotterdam. Proceedings... Rotterdam: [s.n.]$c2022
520 $aMilk production is usually challenging under tropical environments. Heat stress and/or recurrent parasite infestations frequently cause cattle?s reduced fitness and productivity. As a way to overcome this challenge, the Gir indicine cattle breed has increasingly been used in crossbred schemes to constitute milk production herds in Brazil and other countries in tropical regions. The Brazilian Dairy Gir Breeding Program was established in 1985, based on a partnership between the Brazilian Agricultural Research Corporation and the Brazilian Association of Dairy Gir Breeders. It was the first breeding program outlined with a progeny test for the improvement of an indicine breed for milk production in the world. Several technical innovations were employed along the time. Now, producers can access genomic predictions for thousands of Gir males and females. Those predictions are used mainly by Brazilian breeders, but also increasingly in other tropical countries from South America, Central America and Asia.
650 $aGado Gir
650 $aGado Leiteiro
650 $aIndústria
650 $aLaticínio
650 $aMelhoramento Genético Animal
700 1 $aSILVA, M. V. G. B.
700 1 $aMACHADO, M. A.
700 1 $aVERNEQUE, R. da S.
700 1 $aFERNANDES, A. R.
700 1 $aMACHADO, C. H. C.
700 1 $aMARTINS, M. F.
700 1 $aREIS, D. R. de L.
700 1 $aBORGES, C. A. V.
700 1 $aVENTURA, H. T.
700 1 $aPEREIRA, M. A.
700 1 $aOLIVEIRA, J. C.
700 1 $aGLATZL JUNIOR, L. A.
700 1 $aGARCIA, A. O.
700 1 $aLEANDRO, F. D.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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