Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/25772 https://doi.org/10.1016/j.ecolind.2014.01.023 |
Resumo: | Sandy beaches are natural dynamic ecosystems, which are becoming worldwide increasingly disturbed by intensive human direct use, coastal development and erosive evolution. In this study, we have examined whether ten years of potential increased human pressures have resulted in significant changes in the macrofaunal assemblages’ structure and composition of two mesotidal sandy beaches (Cabedelo – urban beach, and Quiaios – rural beach) on the European Atlantic coast (Portugal). Seasonal macrofauna collections were performed at both beaches in two different periods, one in 1999–2000 and another in 2010–2011. The physical variables did not change significantly in both beaches throughout the studied periods, however, the urban beach was subject to an increase of human pressures (tourism and shoreline modifications) over the 10-years interval considered when compared with the rural beach. The univariate community descriptors (total density, species richness and diversity) did not differ significantly among periods for the rural beach. In contrast, temporal differences were found at the most urbanised beach, principally regarding the abundances of the amphipod Talitrus saltator and the isopod Tylos europaeus, two of the most abundant species at both beaches. PERMANOVA tests enhanced these temporal variations and the SIMPER analysis attributed to these species the main differences found between periods in this beach. Since the physical environment was similar in both periods, the ecological changes were most likely attributed to the increased human pressures observed at the urban beach. Nevertheless, this study highlights the need of further robust and effective impact assessments and long-term studies to better discern between natural and human induced changes on sandy beaches. |
id |
RCAP_c6c7d611e96bef1a94c4052f36a6d4cf |
---|---|
oai_identifier_str |
oai:estudogeral.uc.pt:10316/25772 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beachesSandy beachsMacrofaunal assemblagesTemporal changesCrustaceansHuman pressuresCoastal tourismSandy beaches are natural dynamic ecosystems, which are becoming worldwide increasingly disturbed by intensive human direct use, coastal development and erosive evolution. In this study, we have examined whether ten years of potential increased human pressures have resulted in significant changes in the macrofaunal assemblages’ structure and composition of two mesotidal sandy beaches (Cabedelo – urban beach, and Quiaios – rural beach) on the European Atlantic coast (Portugal). Seasonal macrofauna collections were performed at both beaches in two different periods, one in 1999–2000 and another in 2010–2011. The physical variables did not change significantly in both beaches throughout the studied periods, however, the urban beach was subject to an increase of human pressures (tourism and shoreline modifications) over the 10-years interval considered when compared with the rural beach. The univariate community descriptors (total density, species richness and diversity) did not differ significantly among periods for the rural beach. In contrast, temporal differences were found at the most urbanised beach, principally regarding the abundances of the amphipod Talitrus saltator and the isopod Tylos europaeus, two of the most abundant species at both beaches. PERMANOVA tests enhanced these temporal variations and the SIMPER analysis attributed to these species the main differences found between periods in this beach. Since the physical environment was similar in both periods, the ecological changes were most likely attributed to the increased human pressures observed at the urban beach. Nevertheless, this study highlights the need of further robust and effective impact assessments and long-term studies to better discern between natural and human induced changes on sandy beaches.This research was supported by FCT (Fundação para a Ciência e Tecnologia) through a PhD Grant awarded to Ana Filipa Bessa (SFRH/BD/64929/2009), and by the project PEst-C/MAR/UI0284/2011, funded by FCT.Elsevier2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/25772http://hdl.handle.net/10316/25772https://doi.org/10.1016/j.ecolind.2014.01.023eng1470-160Xhttp://www.sciencedirect.com/science/article/pii/S1470160X14000314#Bessa, FilipaGonçalves, Sílvia C.Franco, João N.André, José N.Cunha, Pedro P.Marques, J. C.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-07-27T10:28:14Zoai:estudogeral.uc.pt:10316/25772Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:56:05.840319Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
title |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
spellingShingle |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches Bessa, Filipa Sandy beachs Macrofaunal assemblages Temporal changes Crustaceans Human pressures Coastal tourism |
title_short |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
title_full |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
title_fullStr |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
title_full_unstemmed |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
title_sort |
Temporal changes in macrofauna as response indicator to potential human pressures on sandy beaches |
author |
Bessa, Filipa |
author_facet |
Bessa, Filipa Gonçalves, Sílvia C. Franco, João N. André, José N. Cunha, Pedro P. Marques, J. C. |
author_role |
author |
author2 |
Gonçalves, Sílvia C. Franco, João N. André, José N. Cunha, Pedro P. Marques, J. C. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bessa, Filipa Gonçalves, Sílvia C. Franco, João N. André, José N. Cunha, Pedro P. Marques, J. C. |
dc.subject.por.fl_str_mv |
Sandy beachs Macrofaunal assemblages Temporal changes Crustaceans Human pressures Coastal tourism |
topic |
Sandy beachs Macrofaunal assemblages Temporal changes Crustaceans Human pressures Coastal tourism |
description |
Sandy beaches are natural dynamic ecosystems, which are becoming worldwide increasingly disturbed by intensive human direct use, coastal development and erosive evolution. In this study, we have examined whether ten years of potential increased human pressures have resulted in significant changes in the macrofaunal assemblages’ structure and composition of two mesotidal sandy beaches (Cabedelo – urban beach, and Quiaios – rural beach) on the European Atlantic coast (Portugal). Seasonal macrofauna collections were performed at both beaches in two different periods, one in 1999–2000 and another in 2010–2011. The physical variables did not change significantly in both beaches throughout the studied periods, however, the urban beach was subject to an increase of human pressures (tourism and shoreline modifications) over the 10-years interval considered when compared with the rural beach. The univariate community descriptors (total density, species richness and diversity) did not differ significantly among periods for the rural beach. In contrast, temporal differences were found at the most urbanised beach, principally regarding the abundances of the amphipod Talitrus saltator and the isopod Tylos europaeus, two of the most abundant species at both beaches. PERMANOVA tests enhanced these temporal variations and the SIMPER analysis attributed to these species the main differences found between periods in this beach. Since the physical environment was similar in both periods, the ecological changes were most likely attributed to the increased human pressures observed at the urban beach. Nevertheless, this study highlights the need of further robust and effective impact assessments and long-term studies to better discern between natural and human induced changes on sandy beaches. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
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 |
http://hdl.handle.net/10316/25772 http://hdl.handle.net/10316/25772 https://doi.org/10.1016/j.ecolind.2014.01.023 |
url |
http://hdl.handle.net/10316/25772 https://doi.org/10.1016/j.ecolind.2014.01.023 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1470-160X http://www.sciencedirect.com/science/article/pii/S1470160X14000314# |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133846126460928 |