Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time

Andean lakes are important for human well-being and biodiversity conservation, yet human-induced environmental changes threaten their biodiversity and the ecosystem services they provide. Knowledge of the relationship between biodiversity and environmental factors can provide insight into how human...

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Autores principales:	Esteban A. Guevara, Tatiana Santander G., Rodrigo Espinosa, Catherine H. Graham
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Dominant species Eutrophication Fulica ardesiaca Lake management Monitoring Population growth Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/29464837bcbc49cb849cdda5ab0f370f
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spelling	oai:doaj.org-article:29464837bcbc49cb849cdda5ab0f370f2021-12-01T04:33:20ZAquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time1470-160X10.1016/j.ecolind.2020.107044https://doaj.org/article/29464837bcbc49cb849cdda5ab0f370f2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20309833https://doaj.org/toc/1470-160XAndean lakes are important for human well-being and biodiversity conservation, yet human-induced environmental changes threaten their biodiversity and the ecosystem services they provide. Knowledge of the relationship between biodiversity and environmental factors can provide insight into how human activity impacts lakes. We report trends of community composition of aquatic bird communities at six Andean lakes in Ecuador based on 15-years of monitoring. Additionally, we explore relationships among the abundance of aquatic bird species and environmental variables, such as elevation, water depth, biochemical demand of oxygen and concentration of phosphates and nitrites. We found a sustained population growth of one species of herbivorous bird, the Andean Coot, Fulica ardesiaca, across all lakes. Local trends in community composition show directional changes in four lakes and were likely a result of abundance increases of this species. Environmental factors related to eutrophication explained the abundance of F. ardesiaca, indicating that ongoing eutrophication of Andean Ecuadorian lakes, which results in increased submerged vegetation, benefits herbivorous species like this. Management measures that prevent further eutrophication combined with on-going monitoring should be considered in order to maintain ecosystem health and functioning.Esteban A. GuevaraTatiana Santander G.Rodrigo EspinosaCatherine H. GrahamElsevierarticleDominant speciesEutrophicationFulica ardesiacaLake managementMonitoringPopulation growthEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107044- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dominant species Eutrophication Fulica ardesiaca Lake management Monitoring Population growth Ecology QH540-549.5
spellingShingle	Dominant species Eutrophication Fulica ardesiaca Lake management Monitoring Population growth Ecology QH540-549.5 Esteban A. Guevara Tatiana Santander G. Rodrigo Espinosa Catherine H. Graham Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
description	Andean lakes are important for human well-being and biodiversity conservation, yet human-induced environmental changes threaten their biodiversity and the ecosystem services they provide. Knowledge of the relationship between biodiversity and environmental factors can provide insight into how human activity impacts lakes. We report trends of community composition of aquatic bird communities at six Andean lakes in Ecuador based on 15-years of monitoring. Additionally, we explore relationships among the abundance of aquatic bird species and environmental variables, such as elevation, water depth, biochemical demand of oxygen and concentration of phosphates and nitrites. We found a sustained population growth of one species of herbivorous bird, the Andean Coot, Fulica ardesiaca, across all lakes. Local trends in community composition show directional changes in four lakes and were likely a result of abundance increases of this species. Environmental factors related to eutrophication explained the abundance of F. ardesiaca, indicating that ongoing eutrophication of Andean Ecuadorian lakes, which results in increased submerged vegetation, benefits herbivorous species like this. Management measures that prevent further eutrophication combined with on-going monitoring should be considered in order to maintain ecosystem health and functioning.
format	article
author	Esteban A. Guevara Tatiana Santander G. Rodrigo Espinosa Catherine H. Graham
author_facet	Esteban A. Guevara Tatiana Santander G. Rodrigo Espinosa Catherine H. Graham
author_sort	Esteban A. Guevara
title	Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
title_short	Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
title_full	Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
title_fullStr	Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
title_full_unstemmed	Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time
title_sort	aquatic bird communities in andean lakes of ecuador are increasingly dissimilar over time
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/29464837bcbc49cb849cdda5ab0f370f
work_keys_str_mv	AT estebanaguevara aquaticbirdcommunitiesinandeanlakesofecuadorareincreasinglydissimilarovertime AT tatianasantanderg aquaticbirdcommunitiesinandeanlakesofecuadorareincreasinglydissimilarovertime AT rodrigoespinosa aquaticbirdcommunitiesinandeanlakesofecuadorareincreasinglydissimilarovertime AT catherinehgraham aquaticbirdcommunitiesinandeanlakesofecuadorareincreasinglydissimilarovertime
_version_	1718405832760098816

Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time

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