Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)

Tropical mountain rivers are strategic sources of water for human development while biological communi-ties are indicators of the status of these ecosystems. However, volcanic basins close to large urban areas are affected by increasing human pressures that threaten the future of these ecosystems an...

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Autores: Marchamalo, Miguel, Springer, Monika, Acosta Rivas, Carlos Raúl, González-Rodrigo, Beatriz, Vásquez, Danny
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/166279
Acceso en línea:https://hdl.handle.net/2445/166279
Access Level:acceso abierto
Palabra clave:Bentos
Volcans
Cursos d'aigua
Costa Rica
Benthos
Volcanoes
Rivers
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spelling Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)Marchamalo, MiguelSpringer, MonikaAcosta Rivas, Carlos RaúlGonzález-Rodrigo, BeatrizVásquez, DannyBentosVolcansCursos d'aiguaCosta RicaBenthosVolcanoesRiversCosta RicaTropical mountain rivers are strategic sources of water for human development while biological communi-ties are indicators of the status of these ecosystems. However, volcanic basins close to large urban areas are affected by increasing human pressures that threaten the future of these ecosystems and their benefits to society. Goals. This paper analyzes the evolution of the responses of the aquatic macroinvertebrate assemblages in the face of increasing pressures in the Birrís River basin, which is essential for providing food and energy for the Greater Metropolitan Area of Costa Rica. The hypothesis that volcanic headwater communities are highly vulnerable to human impacts was tested. Methods. Composition and structure of aquatic macroinvertebrate assemblages were assessed along main river channels over two years. Results. The spatial variability of assemblages was related to organic pollution and the self-purification capacity of the river. Temporal variability was mainly explained by the intra-annual climate variability (seasonality). Macroinvertebrate assemblages were dominated by Chironomidae (Diptera), Simuliidae (Diptera), and Baetidae (Ephemeroptera) throughout the year. High flows during the rainy season (May to December) reduced density while diversity peaked at the end of that season. Ephemeroptera and Trichoptera reached their maximum abundance during the dry season, while Diptera showed maximum richness at the end of the rainy season. Conclusions. Biological communities showed spatial and temporal adaptations to the main environmental stresses, including high levels of organic pollution. However, the high slope of river channels favors the self-purification processes, which offer an opportunity for the recovery of ecological integrity com-bined with control of the organic discharges. More information is needed on taxonomy and autoecology of aquatic fauna and flora in these fragile volcanic environments that are strategic for the protection of water resources in the tropicsUniversidad Autónoma Metropolitana, Unidad Iztapalapa2020202020182020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion12 p.application/pdfhttps://hdl.handle.net/2445/166279Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.24275/uam/izt/dcbs/hidro/2018v28n2/MarchamaloHidrobiológica, 2018, vol. 28, num. 2, p. 179-190https://doi.org/10.24275/uam/izt/dcbs/hidro/2018v28n2/Marchamalo(c) Universidad Autónoma Metropolitana, Unidad Iztapalapa, 2018info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1662792026-05-29T05:05:01Z
dc.title.none.fl_str_mv Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
title Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
spellingShingle Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
Marchamalo, Miguel
Bentos
Volcans
Cursos d'aigua
Costa Rica
Benthos
Volcanoes
Rivers
Costa Rica
title_short Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
title_full Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
title_fullStr Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
title_full_unstemmed Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
title_sort Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: River Birrís, Irazú Volcano (Costa Rica)
dc.creator.none.fl_str_mv Marchamalo, Miguel
Springer, Monika
Acosta Rivas, Carlos Raúl
González-Rodrigo, Beatriz
Vásquez, Danny
author Marchamalo, Miguel
author_facet Marchamalo, Miguel
Springer, Monika
Acosta Rivas, Carlos Raúl
González-Rodrigo, Beatriz
Vásquez, Danny
author_role author
author2 Springer, Monika
Acosta Rivas, Carlos Raúl
González-Rodrigo, Beatriz
Vásquez, Danny
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bentos
Volcans
Cursos d'aigua
Costa Rica
Benthos
Volcanoes
Rivers
Costa Rica
topic Bentos
Volcans
Cursos d'aigua
Costa Rica
Benthos
Volcanoes
Rivers
Costa Rica
description Tropical mountain rivers are strategic sources of water for human development while biological communi-ties are indicators of the status of these ecosystems. However, volcanic basins close to large urban areas are affected by increasing human pressures that threaten the future of these ecosystems and their benefits to society. Goals. This paper analyzes the evolution of the responses of the aquatic macroinvertebrate assemblages in the face of increasing pressures in the Birrís River basin, which is essential for providing food and energy for the Greater Metropolitan Area of Costa Rica. The hypothesis that volcanic headwater communities are highly vulnerable to human impacts was tested. Methods. Composition and structure of aquatic macroinvertebrate assemblages were assessed along main river channels over two years. Results. The spatial variability of assemblages was related to organic pollution and the self-purification capacity of the river. Temporal variability was mainly explained by the intra-annual climate variability (seasonality). Macroinvertebrate assemblages were dominated by Chironomidae (Diptera), Simuliidae (Diptera), and Baetidae (Ephemeroptera) throughout the year. High flows during the rainy season (May to December) reduced density while diversity peaked at the end of that season. Ephemeroptera and Trichoptera reached their maximum abundance during the dry season, while Diptera showed maximum richness at the end of the rainy season. Conclusions. Biological communities showed spatial and temporal adaptations to the main environmental stresses, including high levels of organic pollution. However, the high slope of river channels favors the self-purification processes, which offer an opportunity for the recovery of ecological integrity com-bined with control of the organic discharges. More information is needed on taxonomy and autoecology of aquatic fauna and flora in these fragile volcanic environments that are strategic for the protection of water resources in the tropics
publishDate 2018
dc.date.none.fl_str_mv 2018
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/166279
url https://hdl.handle.net/2445/166279
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.24275/uam/izt/dcbs/hidro/2018v28n2/Marchamalo
Hidrobiológica, 2018, vol. 28, num. 2, p. 179-190
https://doi.org/10.24275/uam/izt/dcbs/hidro/2018v28n2/Marchamalo
dc.rights.none.fl_str_mv (c) Universidad Autónoma Metropolitana, Unidad Iztapalapa, 2018
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Universidad Autónoma Metropolitana, Unidad Iztapalapa, 2018
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
application/pdf
dc.publisher.none.fl_str_mv Universidad Autónoma Metropolitana, Unidad Iztapalapa
publisher.none.fl_str_mv Universidad Autónoma Metropolitana, Unidad Iztapalapa
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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