Spatial modelling of temporal dynamics in stream fish communities under anthropogenic change

Detalhes bibliográficos
Autor(a) principal: Mota-Ferreira, Mário
Data de Publicação: 2020
Outros Autores: Filipe, Ana Filipa, Magalhães, Maria Filomena, Carona, Sara, Beja, Pedro
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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spelling 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
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