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AuthorA. Boesveld
TitleOverwinteringsgedrag van de nauwe korfslak Vertigo angustior (Mollusca)
JournalNederlandse Faunistische Mededelingen
KeywordsNederland; Biologie; Biotoop
AbstractOverwintering habits of the land snail Vertigo
angustior (Mollusca)
During a mollusc survey in 2004 en 2005 in the
province of Zuid-Holland special attention was
paid to Vertigo angustior. The species was observed
overwintering in large groups, up to hundreds of
specimens together, between mosses (especially
Brachythecium rutabulum (Hedw.) Schimp.) in
small patches of poplar forest (Populus nigra and
Populus alba) in the old dunes. As far as we know,
this gregarious behaviour is described here for
the first time. Many of the snails were found in a
position where they had incorporated a moss leaf
into the epiphragm closing the shell’s aperture,
thereby achoring themselves to the vegetation,
possibly for stability.
Document typearticle
Download paperpdf document http://www.repository.naturalis.nl/document/94033