ANNUAL ACTIVITY CYCLES OF THE LAND SNAIL HELIX ASPERSA MULLER IN NATURAL POPULATIONS IN NORTH-WESTERN SPAIN |
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| Authors: | IGLESIAS J; SANTOS M; CASTILLEJO J |
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| Institution: |
Department of Animal Biology, Faculty of Biology, University of Santiago de Compostela 15706 Santiago de Compostela, Spain |
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| Abstract: | Activity and inactivity (dormancy) periods of the land snailHelix aspena MÜller were monitored at monthly intervalsduring two years in two natural populations in Galicia (NW-Spain),one m an area of Mediterranean climatic influence and anotherin an Atlantic -climate area The annual activity cycles of Haspena in Galicia are consistent with latitudinal adjustmentsof the life cycle of this species which shows a very wide distributionrange, but also showed some special features related to theparticular microclimate of each locality (Received 4 December 1995; accepted 6 May 1996) |
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