Publications by authors named "B Rossaro"

Factors responsible for species distribution of benthic macroinvertebrates, including responses at different spatial scales, have been previously investigated. The aim of the present research was to review the most relevant factors explaining chironomid species distribution focusing on factors operating at different spatial scales, such as latitude, longitude, altitude, substrate, salinity, water temperature, current velocity, conductivity, acidity, dissolved oxygen, nutrient content etc. acting at regional levels and at a large or small water basin level.

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Article Synopsis
  • The Toce River in Northern Italy has legacy contamination from DDT, mercury, and arsenic due to an industrial plant active from 1915 to 1996, with sediment samples collected in 2014 and 2019 to assess the impact on local chironomid species.
  • A total of 32 chironomid taxa were identified, with sediment concentrations of DDT, mercury, and arsenic reaching levels that could be toxic to benthic invertebrates.
  • Canonical Correspondence Analysis showed a seasonal and upstream-downstream gradient in species response to contamination, indicating that while most species were tolerant to the pollutants, a few exhibited sensitivity to specific contaminants.
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Chironomids are the species-richest family among macroinvertebrates and are often used as indicators of ecological conditions in inland waters. High taxonomic expertise is needed for identification and new species are still being described even in the well-known West Palearctic region. Our Microsoft Access relational database comprises data on Chironomid species collected in rivers and lakes in Italy and some other European countries over a period of about 50 years, often associated with physical-chemical data, but in some cases, only data on Chironomids are available with no associated environmental data.

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The larvae of some species of the subgenus s. str. (Diptera, Chironomidae) are here described for the first time with corrections and additions to the descriptions of adult males and pupal exuviae.

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We present a summary and analysis of the Diptera-related information published in Zootaxa from 2001 to 2020, with a focus on taxonomic papers. Altogether, 2,527 papers on Diptera were published, including 2,032 taxonomic papers and 1,931 papers containing new nomenclatural acts, equivalent to 22% of all publications with new nomenclatural acts for Diptera. The new nomenclatural acts include 7,431 new species, 277 new genera, 2,003 new synonymies, and 1,617 new combinations.

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