Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://doi.org/10.1016/j.aquabot.2005.02.001 http://www.locus.ufv.br/handle/123456789/22319 |
Resumo: | We examined the effects of drought, flooding periods and plant density on the persistence strategies of Salvinia auriculata in temporary ponds in the Southern Pantanal. Ramets were found to bear sporocarps during the dry rather than during the flooding season. In high-density conditions the frequency of ramets producing new ramets did not differ between drought and flood. However, during the flooding period, the frequency of production of new ramets under low-density conditions was higher than under high plant densities. A greenhouse experiment showed that the number of sporocarps produced under a high-density treatment was greater than when plant density was kept low. The individual mass of each sporocarp was also greater for the high-density treatment. In contrast, the number of new ramets produced under the low-density treatment was greater than at high densities, as was ramet mass. Abundant sporocarp production in S. auriculata was found to be associated with habitats that dry up. Such flexibility of life history pattern enhances survival in widely fluctuating environments, such as the temporary shallow ponds in the Pantanal. |
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Sperber, Carlos FranklCoelho, Flávia FreitasLopes, Frederico Santos2018-10-17T17:10:13Z2018-10-17T17:10:13Z2005-0403043770https://doi.org/10.1016/j.aquabot.2005.02.001http://www.locus.ufv.br/handle/123456789/22319We examined the effects of drought, flooding periods and plant density on the persistence strategies of Salvinia auriculata in temporary ponds in the Southern Pantanal. Ramets were found to bear sporocarps during the dry rather than during the flooding season. In high-density conditions the frequency of ramets producing new ramets did not differ between drought and flood. However, during the flooding period, the frequency of production of new ramets under low-density conditions was higher than under high plant densities. A greenhouse experiment showed that the number of sporocarps produced under a high-density treatment was greater than when plant density was kept low. The individual mass of each sporocarp was also greater for the high-density treatment. In contrast, the number of new ramets produced under the low-density treatment was greater than at high densities, as was ramet mass. Abundant sporocarp production in S. auriculata was found to be associated with habitats that dry up. Such flexibility of life history pattern enhances survival in widely fluctuating environments, such as the temporary shallow ponds in the Pantanal.engAquatic Botanyv. 81, n. 4, p. 343- 352, abr. 2005Elsevier B.V.info:eu-repo/semantics/openAccessAquatic macrophyteLife historyPantanalPlant strategiesSporocarpVegetative growthPersistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf128582https://locus.ufv.br//bitstream/123456789/22319/1/artigo.pdf6f856c03c13ad34fb164fed13dd56242MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/22319/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/223192018-10-17 14:13:09.253oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-10-17T17:13:09LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
title |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
spellingShingle |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil Sperber, Carlos Frankl Aquatic macrophyte Life history Pantanal Plant strategies Sporocarp Vegetative growth |
title_short |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
title_full |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
title_fullStr |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
title_full_unstemmed |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
title_sort |
Persistence strategy of Salvinia auriculata Aublet in temporary ponds of Southern Pantanal, Brazil |
author |
Sperber, Carlos Frankl |
author_facet |
Sperber, Carlos Frankl Coelho, Flávia Freitas Lopes, Frederico Santos |
author_role |
author |
author2 |
Coelho, Flávia Freitas Lopes, Frederico Santos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sperber, Carlos Frankl Coelho, Flávia Freitas Lopes, Frederico Santos |
dc.subject.pt-BR.fl_str_mv |
Aquatic macrophyte Life history Pantanal Plant strategies Sporocarp Vegetative growth |
topic |
Aquatic macrophyte Life history Pantanal Plant strategies Sporocarp Vegetative growth |
description |
We examined the effects of drought, flooding periods and plant density on the persistence strategies of Salvinia auriculata in temporary ponds in the Southern Pantanal. Ramets were found to bear sporocarps during the dry rather than during the flooding season. In high-density conditions the frequency of ramets producing new ramets did not differ between drought and flood. However, during the flooding period, the frequency of production of new ramets under low-density conditions was higher than under high plant densities. A greenhouse experiment showed that the number of sporocarps produced under a high-density treatment was greater than when plant density was kept low. The individual mass of each sporocarp was also greater for the high-density treatment. In contrast, the number of new ramets produced under the low-density treatment was greater than at high densities, as was ramet mass. Abundant sporocarp production in S. auriculata was found to be associated with habitats that dry up. Such flexibility of life history pattern enhances survival in widely fluctuating environments, such as the temporary shallow ponds in the Pantanal. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005-04 |
dc.date.accessioned.fl_str_mv |
2018-10-17T17:10:13Z |
dc.date.available.fl_str_mv |
2018-10-17T17:10:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://doi.org/10.1016/j.aquabot.2005.02.001 http://www.locus.ufv.br/handle/123456789/22319 |
dc.identifier.issn.none.fl_str_mv |
03043770 |
identifier_str_mv |
03043770 |
url |
https://doi.org/10.1016/j.aquabot.2005.02.001 http://www.locus.ufv.br/handle/123456789/22319 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 81, n. 4, p. 343- 352, abr. 2005 |
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Elsevier B.V. info:eu-repo/semantics/openAccess |
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Elsevier B.V. |
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openAccess |
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application/pdf |
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Aquatic Botany |
publisher.none.fl_str_mv |
Aquatic Botany |
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reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
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LOCUS Repositório Institucional da UFV |
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