Les chironomidés (Diptera) du bassin du Haut-Guadalquivir (Sierra de Cazorla, sud de l'Espagne)

Chironomid larvae and pupae were studied in selected Mediterranean rivers with the aim of identifying pool and riffle taxa assemblages and of analysing their response to ecological quality gradients. Macroinvertebrate samples were collected in six Italian rivers along a pool-riffle sequence in three seasons following a multihabitat sampling technique. Chironomids were identified as genus/species, other macroinvertebrates as family/genus. The main physico-chemical, hydromorphological and geographical data were collected. Samples were ascribed to five quality classes according to the STAR_ICM index. Based on Chironomid taxa, principal component analysis (PCA) axis 1 represented an organic pollution gradient, axis 2 represented seasonality. Pool and riffle samples were significantly different according to taxa assemblages. Similar results were obtained with PCA based on the whole macrobenthic community. Indicator value (IndVal) analysis facilitated the detection of the Chironomid indicators of high/good quality pools (e.g. Conchapelopia pallidula, Rheopelopia ornata, Epoicocladius ephemerae) and riffles (Tvetenia calvescens, Eukiefferiella gracei). The Berger-Parker dominance index based on Chironomid assemblages in pools was correlated to PCA axis 1 and performed well in discriminating between quality classes. In riffles, no correlations to PCA axes were detected and a wide overlap between quality classes was present. Thus, assessment in the analysed river type may focus on pool mesohabitat as this seems to represent best the ecological gradient of sites.

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Responses of Chironomid larvae (insecta, Diptera) to ecological quality in Mediterranean river mesohabitats (South Italy)

Marziali

Armanini

Cazzola

et al. 2009

River Research & Apps

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Mise à jour de l'inventaire des Chironomidés (Diptera) connus du Maroc

Kettani

Ouazzani

Martinez³

2001

Ann. Limnol. - Int. J. Lim.

108

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The first record of the subfamily Buchonomyiinae (Diptera, Chironomidae) from Italy

Marziali

Casalegno

Rossaro³

2004

Italian Journal of Zoology

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Mature female pupae and pupal exuviae of Buchonomyia thienemanni were captured from the Taro and Adda rivers in northern Italy in June and July 2002. This is the first record of the subfamily Buchonomyiinae from Italy. The pupae do not substantially differ from those collected in other European localities. New information about the autoecology and geographical distribution of B. thienemanni is given. The species, captured in clean, shallow waters with high oxygen content, is rare in Europe, larvae are known from Ireland only, pupal exuviae from nine countries.

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Les chironomidés (Diptera) du bassin du Haut-Guadalquivir (Sierra de Cazorla, sud de l'Espagne)

Cited by 4 publications

References 11 publications

Responses of Chironomid larvae (insecta, Diptera) to ecological quality in Mediterranean river mesohabitats (South Italy)

Responses of Chironomid larvae (insecta, Diptera) to ecological quality in Mediterranean river mesohabitats (South Italy)

Mise à jour de l'inventaire des Chironomidés (Diptera) connus du Maroc

The first record of the subfamily Buchonomyiinae (Diptera, Chironomidae) from Italy

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