Trichoptera of Szigetköz, upper Hungarian Danube Region (Northwest Hungary), II.* Species composition and its changes in some water bodies

Uherkovich, Ákos and Nógrádi, Sára (2003) Trichoptera of Szigetköz, upper Hungarian Danube Region (Northwest Hungary), II.* Species composition and its changes in some water bodies. Folia historico-naturalia Musei Matraensis, 27. pp. 237-258. ISSN 0134-1243

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Abstract

The caddisfly assemblages of the Danube, both flood area and island, are presented and analysed. The composition changed through time, while the dominancy relations also changed considerably in all water bodies as a consequence of the diversion of Danube and to changes in the water system. The quantities of Hydropsyche species diminished, whereas two species became rather frequent or dominant: Glossosoma boltoni Curt. and Agapetus laniger Pict. The number of known species increased to 86 in Szigetköz, as two species – Silo nigricornis Pict. and Silo piceus Brau. – have been collected since 2001.

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