Hydrodynamics and seed dispersal in the lower Amazon.

Detalhes bibliográficos
Autor(a) principal: CUNHA, A. C. da
Data de Publicação: 2017
Outros Autores: 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.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086024
Resumo: 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.
id EMBR_685bf2ccb3eed109ec0eabdf361b4042
oai_identifier_str oai:www.alice.cnptia.embrapa.br:doc/1086024
network_acronym_str EMBR
network_name_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository_id_str 2154
spelling Hydrodynamics and seed dispersal in the lower Amazon.Long-distance dispersalModellingSimulationTidal riverCarapa guianensisThe 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.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.CUNHA, A. C. daMUSTIN, K.SANTOS, E. S. dosSANTOS, E. W. G. dosGUEDES, M. C.CUNHA, H. F. A.ROSMAN, P. C. C.STERNBERG, L. da S. L.2018-01-23T00:34:55Z2018-01-23T00:34:55Z2018-01-2220172018-01-23T00:34:55Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFreshwater Biology, p. 1-9, 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/108602410.1111/fwb.12982enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-01-23T00:35:02Zoai:www.alice.cnptia.embrapa.br:doc/1086024Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-01-23T00:35:02falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-01-23T00:35:02Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Hydrodynamics and seed dispersal in the lower Amazon.
title Hydrodynamics and seed dispersal in the lower Amazon.
spellingShingle Hydrodynamics and seed dispersal in the lower Amazon.
CUNHA, A. C. da
Long-distance dispersal
Modelling
Simulation
Tidal river
Carapa guianensis
title_short Hydrodynamics and seed dispersal in the lower Amazon.
title_full Hydrodynamics and seed dispersal in the lower Amazon.
title_fullStr Hydrodynamics and seed dispersal in the lower Amazon.
title_full_unstemmed Hydrodynamics and seed dispersal in the lower Amazon.
title_sort Hydrodynamics and seed dispersal in the lower Amazon.
author CUNHA, A. C. da
author_facet 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.
author_role author
author2 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.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv 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.
dc.contributor.author.fl_str_mv 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.
dc.subject.por.fl_str_mv Long-distance dispersal
Modelling
Simulation
Tidal river
Carapa guianensis
topic Long-distance dispersal
Modelling
Simulation
Tidal river
Carapa guianensis
description 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.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018-01-23T00:34:55Z
2018-01-23T00:34:55Z
2018-01-22
2018-01-23T00:34:55Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Freshwater Biology, p. 1-9, 2017.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086024
10.1111/fwb.12982
identifier_str_mv Freshwater Biology, p. 1-9, 2017.
10.1111/fwb.12982
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086024
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
_version_ 1794503448300879872