The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/22305 |
Resumo: | Non-native species of aquatic plants may become invasive and affect native communities, reducing the diversity of plants and other organisms. In general, the successful colonization of new habitats by macrophytes depends first on their dispersion ability and second on the existence of favorable abiotic conditions. In this investigation, we used a transplant experiment to test the effects of habitat water (main river channel versus lake) and habitat sediment (river sediment versus lake sediment) on the growth of two species, the non-native Hydrilla verticillata and the native macrophyte Egeria najas. We tested the hypothesis that the non-native species is more successful when it grows in the river channel with river sediment as substrate, whereas the native E. najas is more successful when it grows in the lake with lake sediment as substrate. Fragments of both species were planted in river and lake sediment and transported to the main river channel and a lake for the growing period. The field experiment results demonstrated that H. verticillata did not grow in either river or lake sediment when planted in the lake. However, this species developed higher root biomass than E. najas in the main river channel, which explains its predominance in this type of habitat. The results support the view that habitat characteristics are determinants of the successful or unsuccessful growth of H. verticillata in our study sites. Finally, H. verticillata invasiveness may improve after certain lag times in response to alterations in habitat, as observed for several other non-native species. Thus, future invasions of floodplain lakes by this species cannot be discarded. |
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The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions Planície de inundaçãoExperimentoHydrilla verticillataEgeria najasBiological SciencesNon-native species of aquatic plants may become invasive and affect native communities, reducing the diversity of plants and other organisms. In general, the successful colonization of new habitats by macrophytes depends first on their dispersion ability and second on the existence of favorable abiotic conditions. In this investigation, we used a transplant experiment to test the effects of habitat water (main river channel versus lake) and habitat sediment (river sediment versus lake sediment) on the growth of two species, the non-native Hydrilla verticillata and the native macrophyte Egeria najas. We tested the hypothesis that the non-native species is more successful when it grows in the river channel with river sediment as substrate, whereas the native E. najas is more successful when it grows in the lake with lake sediment as substrate. Fragments of both species were planted in river and lake sediment and transported to the main river channel and a lake for the growing period. The field experiment results demonstrated that H. verticillata did not grow in either river or lake sediment when planted in the lake. However, this species developed higher root biomass than E. najas in the main river channel, which explains its predominance in this type of habitat. The results support the view that habitat characteristics are determinants of the successful or unsuccessful growth of H. verticillata in our study sites. Finally, H. verticillata invasiveness may improve after certain lag times in response to alterations in habitat, as observed for several other non-native species. Thus, future invasions of floodplain lakes by this species cannot be discarded.EDUFU2015-01-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/2230510.14393/BJ-v31n1a2015-22305Bioscience Journal ; Vol. 31 No. 1 (2015): Jan./Feb.; 268-274Bioscience Journal ; v. 31 n. 1 (2015): Jan./Feb.; 268-2741981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/22305/1590210.14393/BJ-v31n1a2015-28Brazil; ContemporaryCopyright (c) 2015 Márcio José Silveirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilveira, Márcio José2022-05-12T13:52:43Zoai:ojs.www.seer.ufu.br:article/22305Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-12T13:52:43Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
title |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
spellingShingle |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions Silveira, Márcio José Planície de inundação Experimento Hydrilla verticillata Egeria najas Biological Sciences |
title_short |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
title_full |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
title_fullStr |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
title_full_unstemmed |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
title_sort |
The effect of habitat and sediment type on the occurrence of non-native and native species of aquatic macrophyte in subtropical regions |
author |
Silveira, Márcio José |
author_facet |
Silveira, Márcio José |
author_role |
author |
dc.contributor.author.fl_str_mv |
Silveira, Márcio José |
dc.subject.por.fl_str_mv |
Planície de inundação Experimento Hydrilla verticillata Egeria najas Biological Sciences |
topic |
Planície de inundação Experimento Hydrilla verticillata Egeria najas Biological Sciences |
description |
Non-native species of aquatic plants may become invasive and affect native communities, reducing the diversity of plants and other organisms. In general, the successful colonization of new habitats by macrophytes depends first on their dispersion ability and second on the existence of favorable abiotic conditions. In this investigation, we used a transplant experiment to test the effects of habitat water (main river channel versus lake) and habitat sediment (river sediment versus lake sediment) on the growth of two species, the non-native Hydrilla verticillata and the native macrophyte Egeria najas. We tested the hypothesis that the non-native species is more successful when it grows in the river channel with river sediment as substrate, whereas the native E. najas is more successful when it grows in the lake with lake sediment as substrate. Fragments of both species were planted in river and lake sediment and transported to the main river channel and a lake for the growing period. The field experiment results demonstrated that H. verticillata did not grow in either river or lake sediment when planted in the lake. However, this species developed higher root biomass than E. najas in the main river channel, which explains its predominance in this type of habitat. The results support the view that habitat characteristics are determinants of the successful or unsuccessful growth of H. verticillata in our study sites. Finally, H. verticillata invasiveness may improve after certain lag times in response to alterations in habitat, as observed for several other non-native species. Thus, future invasions of floodplain lakes by this species cannot be discarded. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/22305 10.14393/BJ-v31n1a2015-22305 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/22305 |
identifier_str_mv |
10.14393/BJ-v31n1a2015-22305 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/22305/15902 10.14393/BJ-v31n1a2015-28 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Márcio José Silveira https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Márcio José Silveira https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 31 No. 1 (2015): Jan./Feb.; 268-274 Bioscience Journal ; v. 31 n. 1 (2015): Jan./Feb.; 268-274 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
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1797069065873784832 |