Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia

Detalhes bibliográficos
Autor(a) principal: Englmaier, Gernot K.
Data de Publicação: 2020
Outros Autores: Hayes, Daniel S., Meulenbroek, Paul, Terefe, Yonas, Lakew, Aschalew, Tesfaye, Genanaw, Waidbacher, Herwig, Malicky, Hans, Wubie, Alemayehu, Leitner, Patrick, Graf, Wolfram
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/20419
Resumo: Primary Research Paper
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spelling Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, EthiopiaAfricabiodiversitybiogeographyspecies assemblagesfreshwater ecoregionsindicator speciesPrimary Research PaperSpecific concepts of fluvial ecology are well studied in riverine ecosystems of the temperate zone but poorly investigated in the Afrotropical region. Hence, we examined the longitudinal zonation of fish and adult caddisfly (Trichoptera) assemblages in the endorheic Awash River (1,250 km in length), Ethiopia. We expected that species assemblages are structured along environmental gradients, reflecting the pattern of large-scale freshwater ecoregions. We applied multivariate statistical methods to test for differences in spatial species assemblage structure and identified characteristic taxa of the observed biocoenoses by indicator species analyses. Fish and caddisfly assemblages were clustered into highland and lowland communities, following the freshwater ecoregions, but separated by an ecotone with highest biodiversity. Moreover, the caddisfly results suggest separating the heterogeneous highlands into a forested and a deforested zone. Surprisingly, the Awash drainage is rather species-poor: only 11 fish (1 endemic, 2 introduced) and 28 caddisfly species (8 new records for Ethiopia) were recorded from the mainstem and its major tributaries. Nevertheless, specialized species characterize the highland forests, whereas the lowlands primarily host geographically widely distributed species. This study showed that a combined approach of fish and caddisflies is a suitable method for assessing regional characteristics of fluvial ecosystems in the tropicsSpringerRepositório da Universidade de LisboaEnglmaier, Gernot K.Hayes, Daniel S.Meulenbroek, PaulTerefe, YonasLakew, AschalewTesfaye, GenanawWaidbacher, HerwigMalicky, HansWubie, AlemayehuLeitner, PatrickGraf, Wolfram2020-10-02T11:11:21Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/20419engEnglmaier, G.K., Hayes, D.S., Meulenbroek, P. et al. Longitudinal river zonation in the tropics: examples of fish and caddisflies from the endorheic Awash River, Ethiopia. Hydrobiologia (2020)https://doi.org/10.1007/s10750-020-04400-0info: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:RCAAP2023-03-06T14:49:51Zoai:www.repository.utl.pt:10400.5/20419Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:10.584087Repositório 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 Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
title Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
spellingShingle Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
Englmaier, Gernot K.
Africa
biodiversity
biogeography
species assemblages
freshwater ecoregions
indicator species
title_short Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
title_full Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
title_fullStr Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
title_full_unstemmed Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
title_sort Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
author Englmaier, Gernot K.
author_facet Englmaier, Gernot K.
Hayes, Daniel S.
Meulenbroek, Paul
Terefe, Yonas
Lakew, Aschalew
Tesfaye, Genanaw
Waidbacher, Herwig
Malicky, Hans
Wubie, Alemayehu
Leitner, Patrick
Graf, Wolfram
author_role author
author2 Hayes, Daniel S.
Meulenbroek, Paul
Terefe, Yonas
Lakew, Aschalew
Tesfaye, Genanaw
Waidbacher, Herwig
Malicky, Hans
Wubie, Alemayehu
Leitner, Patrick
Graf, Wolfram
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Englmaier, Gernot K.
Hayes, Daniel S.
Meulenbroek, Paul
Terefe, Yonas
Lakew, Aschalew
Tesfaye, Genanaw
Waidbacher, Herwig
Malicky, Hans
Wubie, Alemayehu
Leitner, Patrick
Graf, Wolfram
dc.subject.por.fl_str_mv Africa
biodiversity
biogeography
species assemblages
freshwater ecoregions
indicator species
topic Africa
biodiversity
biogeography
species assemblages
freshwater ecoregions
indicator species
description Primary Research Paper
publishDate 2020
dc.date.none.fl_str_mv 2020-10-02T11:11:21Z
2020
2020-01-01T00:00:00Z
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/10400.5/20419
url http://hdl.handle.net/10400.5/20419
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Englmaier, G.K., Hayes, D.S., Meulenbroek, P. et al. Longitudinal river zonation in the tropics: examples of fish and caddisflies from the endorheic Awash River, Ethiopia. Hydrobiologia (2020)
https://doi.org/10.1007/s10750-020-04400-0
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 Springer
publisher.none.fl_str_mv Springer
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
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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
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