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Identification book of terrestrial molluscs in Finland

There are 167 mollusc species in Finland, of which 92 live in terrestrial and 75 species in aquatic habitats. In Finland, the group of molluscs comprises gastropods (snails and slugs) and bivalves. There is a lack of comprehensive identification book of terrestrial gastropods in Finnish. This hinders the interest of amateurs in them. We have only few experts of the group in Finland, and for instance the expert group supporting environmental administration has only four members. One of the most important aims of the present project is to excite interest in terrestrial gastropods and get people to observe and even collect this group of animals. The book will contain an identification key, descriptions, biology and distributions of the species, as well as up-to-date checklist of Finland´s terrestrial gastropod fauna. Also threat factors, future threats and conservation will be discussed.

In Finland, the "copse snail" (Arianta arbostorum) is an introduced species to the inland. The original habitats of the species are deciduous forests in coastal areas. © Juhani Terhivuo.

Majority of our terrestrial gastropods live in forest litter. The composition and amount of litter mainly regulates the species-richness and abundance of the fauna. 24 species of terrestrial molluscs are assessed as threatened in Finland, most of which are forest species occupying different types of deciduous forests and other calciferous habitats.

The full-time researcher in the project is Anne Koivunen. Besides amateurs the book is aimed to professionals in the fields of for instance forestry and environmental administration. It serves also biology students and teachers as a course literature and identification book.

Further information

Juhani Terhivuo, Finnish Museum of Natural History, University of Helsinki, tel. +358 50 3182357, juhani.terhivuo(at)helsinki.fi

Anne Koivunen, anne.koivunen(at)helsinki.fi

Published 2013-06-20 at 12:30, updated 2013-10-31 at 16:03