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First systematic investigation of adults and second checklist of caddisflies of the Plitvice Lakes National Park with notes on research history, biodiversity, distribution and ecology

The Plitvice Lakes National Park is a unique area in the world with a great variety of aquatic habitats, including tufa barriers. UNESCO has protected this area since 1979. In this paper, detailed faunistic results of the first research on Trichoptera species conducted from 1997 to 2001 are shown. Sampling was done using both light and emergence traps, and 77 caddisfly species were determined using the two methods. Furthermore, a brief overview of the Trichoptera research history in the Plitvice Lakes area is given along with a detailed presentation of caddisfly fauna and an extended second checklist of Trichoptera species in the NP. In the Plitvice Lakes 89 Trichoptera species have been recorded so far. Flight periods are given for each species. Also, the reasons of such a high degree of Trichoptera biodiversity (the highest in Croatia) in the Plitvice Lakes are highlighted. A comparison of species assemblages collected from the 12 localities was made along with the comparison of Trichoptera fauna composition in different aquatic habitats in the Plitvice Lakes NP: springs, streams, lakes and tufa barriers.

aquatic insects, caddisflies, Plitvice Lakes, biodiversity, ecology, nature protection, UNESCO, Croatia

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