Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams

The biodiversity of headwater streams is gradually degrading as a result of urbanization. Although not always successful, ecosystem restoration can be useful in reversing such kind of degradation. In this study, chironomid pupal exuviae (Diptera) were be used as an indicator of riparian vegetation r...

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Autores principales:	Hugo H.L. Saulino, Miguel Cañedo-Argüelles, Susana Trivinho-Strixino, Guilherme Rossi Gorni, Juliano José Corbi
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Macroinvertebrates Aquatic insects Indicator species Biomonitoring Restoration habitat Freshwater biodiversity Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/dec92451d38d44ff88b5890d15b8aa80
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spelling	oai:doaj.org-article:dec92451d38d44ff88b5890d15b8aa802021-12-01T04:53:08ZChironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams1470-160X10.1016/j.ecolind.2021.107766https://doaj.org/article/dec92451d38d44ff88b5890d15b8aa802021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004313https://doaj.org/toc/1470-160XThe biodiversity of headwater streams is gradually degrading as a result of urbanization. Although not always successful, ecosystem restoration can be useful in reversing such kind of degradation. In this study, chironomid pupal exuviae (Diptera) were be used as an indicator of riparian vegetation recovery success in the urban headwater streams of the Cerrado biome. Based on the “field of dreams” hypothesis, it was predicted that chironomid communities would significantly respond to this vegetation recovery through the colonization of urban habitats. Chironomids were collected using the surface-floating pupal exuviae technique in 10 urban and 10 reference sites (n = 60) during the dry season. The streams were characterized with the help of variables such as the Riparian Channel and Environmental Inventory (RCE) protocol, pH level, dissolved oxygen, depth, width of stream channel, flow velocity, land use composition, and the time elapsed after the vegetation in the streams were restored and measured. The urban headwater sites were wider and had a higher stream flow velocity owing to the bank erosion process, which resulted in low RCE scores. There weren’t any differences in the total taxa richness, abundance, beta diversity, and community composition between the urban and the reference sites. In urban streams, chironomid abundance was significantly and positively associated with the width and depth of the stream channel. Taxa richness responded positively to the physical and biological condition of the stream habitat (i.e., the sum of RCE scores), whereas turnover (beta diversity) responded significantly and negatively to land use. According to the indicator species analysis, different taxa richness was associated with each type of site, Pentaneura in urban, while Stenochironomus and Stempellinella in reference sites. The pool species of local streams and the recovery of vegetation through restoration (which improves habitat heterogeneity) were important factors in recovering the chironomid communities.Hugo H.L. SaulinoMiguel Cañedo-ArgüellesSusana Trivinho-StrixinoGuilherme Rossi GorniJuliano José CorbiElsevierarticleMacroinvertebratesAquatic insectsIndicator speciesBiomonitoringRestoration habitatFreshwater biodiversityEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107766- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Macroinvertebrates Aquatic insects Indicator species Biomonitoring Restoration habitat Freshwater biodiversity Ecology QH540-549.5
spellingShingle	Macroinvertebrates Aquatic insects Indicator species Biomonitoring Restoration habitat Freshwater biodiversity Ecology QH540-549.5 Hugo H.L. Saulino Miguel Cañedo-Argüelles Susana Trivinho-Strixino Guilherme Rossi Gorni Juliano José Corbi Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
description	The biodiversity of headwater streams is gradually degrading as a result of urbanization. Although not always successful, ecosystem restoration can be useful in reversing such kind of degradation. In this study, chironomid pupal exuviae (Diptera) were be used as an indicator of riparian vegetation recovery success in the urban headwater streams of the Cerrado biome. Based on the “field of dreams” hypothesis, it was predicted that chironomid communities would significantly respond to this vegetation recovery through the colonization of urban habitats. Chironomids were collected using the surface-floating pupal exuviae technique in 10 urban and 10 reference sites (n = 60) during the dry season. The streams were characterized with the help of variables such as the Riparian Channel and Environmental Inventory (RCE) protocol, pH level, dissolved oxygen, depth, width of stream channel, flow velocity, land use composition, and the time elapsed after the vegetation in the streams were restored and measured. The urban headwater sites were wider and had a higher stream flow velocity owing to the bank erosion process, which resulted in low RCE scores. There weren’t any differences in the total taxa richness, abundance, beta diversity, and community composition between the urban and the reference sites. In urban streams, chironomid abundance was significantly and positively associated with the width and depth of the stream channel. Taxa richness responded positively to the physical and biological condition of the stream habitat (i.e., the sum of RCE scores), whereas turnover (beta diversity) responded significantly and negatively to land use. According to the indicator species analysis, different taxa richness was associated with each type of site, Pentaneura in urban, while Stenochironomus and Stempellinella in reference sites. The pool species of local streams and the recovery of vegetation through restoration (which improves habitat heterogeneity) were important factors in recovering the chironomid communities.
format	article
author	Hugo H.L. Saulino Miguel Cañedo-Argüelles Susana Trivinho-Strixino Guilherme Rossi Gorni Juliano José Corbi
author_facet	Hugo H.L. Saulino Miguel Cañedo-Argüelles Susana Trivinho-Strixino Guilherme Rossi Gorni Juliano José Corbi
author_sort	Hugo H.L. Saulino
title	Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
title_short	Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
title_full	Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
title_fullStr	Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
title_full_unstemmed	Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
title_sort	chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/dec92451d38d44ff88b5890d15b8aa80
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Chironomid pupal exuviae communities support the “field of dreams” hypothesis after the riparian vegetation recovery in headwater urban streams

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