Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10400.5/20738 |
Resumo: | Biodiversity Research |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
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Spatial modelling of temporal dynamics in stream fish communities under anthropogenic changecommunity dynamicscommunity trajectory analysisdendritic networksexotic speciesgeostatisticshydropower generationstream ecologyBiodiversity ResearchAim: Understanding temporal changes in aquatic communities is essential to address the freshwater biodiversity crisis. In particular, it is important to understand the patterns and drivers of spatial variation in local community dynamics, generalizing temporal trends from discrete locations to entire landscapes that are the main focus of management. Here, we present a framework for producing spatially continuous views of community dynamics, focusing on stream fish affected by hydropower development. Location: River Sabor, NE Portugal. Methods: We sampled stream fish at thirty sites between 2012 and 2019. Community trajectory analysis was used to quantify the directionality and velocity of community change, and the geometric resemblance of community trajectories between sites. Geostatistical models for stream networks were used to relate metrics describing community dynamics to environmental variables, while controlling for Euclidean and hydrologic spatial dependencies, and to map spatial variation in community dynamics across the watershed. Results: Trajectories in multivariate space underlined strong temporal dynamics, with local communities deviating and returning to previous states, but without evidence for directional changes. Accordingly, directionality values were low and not consistently affected by environmental variables. The velocity of community change varied markedly across the watershed and it was strongly affected by stream order and elevation, with faster changes observed in lowland streams draining into hydroelectric reservoirs and with a high proportion of exotic species. Pairwise distances between community trajectories were strongly related to hydrologic and environmental distances between sites. Main conclusions: Local stream fish communities were in a loose equilibrium across the watershed, but they fluctuated at a faster rate closer to a hydroelectric reservoir. Integrating community trajectory analysis and geostatistical modelling provides a relatively simple framework to understand how, where and why temporal community dynamics vary across dendritic stream networks and to visualize spatial patterns of community change over time in relation to anthropogenic impactsWileyRepositório da Universidade de LisboaMota-Ferreira, MárioFilipe, Ana FilipaMagalhães, Maria FilomenaCarona, SaraBeja, Pedro2021-01-05T14:00:21Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/20738engDiversity and Distributions. 2020;00:1–1410.1111/ddi.13189info: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:RCAAP2023-03-06T14:50:10Zoai:www.repository.utl.pt:10400.5/20738Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:24.850782Repositório 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 |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
title |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
spellingShingle |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change Mota-Ferreira, Mário community dynamics community trajectory analysis dendritic networks exotic species geostatistics hydropower generation stream ecology |
title_short |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
title_full |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
title_fullStr |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
title_full_unstemmed |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
title_sort |
Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change |
author |
Mota-Ferreira, Mário |
author_facet |
Mota-Ferreira, Mário Filipe, Ana Filipa Magalhães, Maria Filomena Carona, Sara Beja, Pedro |
author_role |
author |
author2 |
Filipe, Ana Filipa Magalhães, Maria Filomena Carona, Sara Beja, Pedro |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Mota-Ferreira, Mário Filipe, Ana Filipa Magalhães, Maria Filomena Carona, Sara Beja, Pedro |
dc.subject.por.fl_str_mv |
community dynamics community trajectory analysis dendritic networks exotic species geostatistics hydropower generation stream ecology |
topic |
community dynamics community trajectory analysis dendritic networks exotic species geostatistics hydropower generation stream ecology |
description |
Biodiversity Research |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z 2021-01-05T14:00:21Z |
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/10400.5/20738 |
url |
http://hdl.handle.net/10400.5/20738 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Diversity and Distributions. 2020;00:1–14 10.1111/ddi.13189 |
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.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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_ |
1799131146666115072 |