Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/267092 |
Resumo: | Hedychium coronarium is an invasive plant widespread in the Brazilian Atlantic forest, especially in riparian areas. However, its distribution along streams is not continuous and the factors that are related to its local occurrence are unknown. We investigated which natural and anthropogenic drivers, particularly concerning dispersal and disturbance, facilitate establishment of H. coronarium. We sampled 148 randomly chosen riparian sites (each containing two plots) in a subtropical basin in southern Brazil and recorded presence/absence of the plant and some environmental variables in situ; other variables were extracted via GIS software. We performed a GLMM with presence/absence as the response variable, sampling site as a random factor and five predictors: intensity of ecosystem degradation, dominant type of terrestrial vegetation, river substrate size class, Strahler stream order and downstream distance to the nearest urban centre. Our results point out that invader presence is favoured by local human disturbance (high riparian degradation and presence of non-native forest), and possibly dispersal, as there is a higher H. coronarium presence probability in proximity to urban centres. Furthermore, a higher presence probability in downstream sections (higher Strahler order) might be explained by hydrologic dispersal of rhizome fragments. Our study illustrates that in the case of riparian invasions it is important to consider terrestrial and aquatic drivers, both natural and anthropogenic. |
id |
UFRGS-2_3d9762af2e01220e1d4395ce48c656bc |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/267092 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Bellini, GinevraBellini, Ginevra2023-11-14T03:23:24Z20201818-5487http://hdl.handle.net/10183/267092001156665Hedychium coronarium is an invasive plant widespread in the Brazilian Atlantic forest, especially in riparian areas. However, its distribution along streams is not continuous and the factors that are related to its local occurrence are unknown. We investigated which natural and anthropogenic drivers, particularly concerning dispersal and disturbance, facilitate establishment of H. coronarium. We sampled 148 randomly chosen riparian sites (each containing two plots) in a subtropical basin in southern Brazil and recorded presence/absence of the plant and some environmental variables in situ; other variables were extracted via GIS software. We performed a GLMM with presence/absence as the response variable, sampling site as a random factor and five predictors: intensity of ecosystem degradation, dominant type of terrestrial vegetation, river substrate size class, Strahler stream order and downstream distance to the nearest urban centre. Our results point out that invader presence is favoured by local human disturbance (high riparian degradation and presence of non-native forest), and possibly dispersal, as there is a higher H. coronarium presence probability in proximity to urban centres. Furthermore, a higher presence probability in downstream sections (higher Strahler order) might be explained by hydrologic dispersal of rhizome fragments. Our study illustrates that in the case of riparian invasions it is important to consider terrestrial and aquatic drivers, both natural and anthropogenic.application/pdfengAquatic Invasions. Finland. Vol. 16, nesp 1 (2020), p. 11–27Invasão biológicaNon-native speciesIntroduced speciesSpatial patternsRiparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronariumEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001156665.pdf.txt001156665.pdf.txtExtracted Texttext/plain32091http://www.lume.ufrgs.br/bitstream/10183/267092/2/001156665.pdf.txtc59614a0a48350c8f24bf27130b37d81MD52ORIGINAL001156665.pdfTexto completo (inglês)application/pdf12530914http://www.lume.ufrgs.br/bitstream/10183/267092/1/001156665.pdf2e7a867594f4282d364401eb29fc95daMD5110183/2670922024-03-14 04:57:22.113862oai:www.lume.ufrgs.br:10183/267092Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-03-14T07:57:22Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
title |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
spellingShingle |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium Bellini, Ginevra Invasão biológica Non-native species Introduced species Spatial patterns |
title_short |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
title_full |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
title_fullStr |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
title_full_unstemmed |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
title_sort |
Riparian degradation, stream position in watershed, and proximity to towns facilitate invasion by Hedychium coronarium |
author |
Bellini, Ginevra |
author_facet |
Bellini, Ginevra |
author_role |
author |
dc.contributor.author.fl_str_mv |
Bellini, Ginevra Bellini, Ginevra |
dc.subject.por.fl_str_mv |
Invasão biológica |
topic |
Invasão biológica Non-native species Introduced species Spatial patterns |
dc.subject.eng.fl_str_mv |
Non-native species Introduced species Spatial patterns |
description |
Hedychium coronarium is an invasive plant widespread in the Brazilian Atlantic forest, especially in riparian areas. However, its distribution along streams is not continuous and the factors that are related to its local occurrence are unknown. We investigated which natural and anthropogenic drivers, particularly concerning dispersal and disturbance, facilitate establishment of H. coronarium. We sampled 148 randomly chosen riparian sites (each containing two plots) in a subtropical basin in southern Brazil and recorded presence/absence of the plant and some environmental variables in situ; other variables were extracted via GIS software. We performed a GLMM with presence/absence as the response variable, sampling site as a random factor and five predictors: intensity of ecosystem degradation, dominant type of terrestrial vegetation, river substrate size class, Strahler stream order and downstream distance to the nearest urban centre. Our results point out that invader presence is favoured by local human disturbance (high riparian degradation and presence of non-native forest), and possibly dispersal, as there is a higher H. coronarium presence probability in proximity to urban centres. Furthermore, a higher presence probability in downstream sections (higher Strahler order) might be explained by hydrologic dispersal of rhizome fragments. Our study illustrates that in the case of riparian invasions it is important to consider terrestrial and aquatic drivers, both natural and anthropogenic. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2023-11-14T03:23:24Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/267092 |
dc.identifier.issn.pt_BR.fl_str_mv |
1818-5487 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001156665 |
identifier_str_mv |
1818-5487 001156665 |
url |
http://hdl.handle.net/10183/267092 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Aquatic Invasions. Finland. Vol. 16, nesp 1 (2020), p. 11–27 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/267092/2/001156665.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/267092/1/001156665.pdf |
bitstream.checksum.fl_str_mv |
c59614a0a48350c8f24bf27130b37d81 2e7a867594f4282d364401eb29fc95da |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1798487578067861504 |