Rare, threatened and alien species in the gastropod communities in the clay pit ponds in relation to the environmental factors (The Ciechanowska Upland, Central Poland)

Issue Title: Themed Issue: Marine, Freshwater, and Wetlands Biodiversity Conservation The objectives of the present survey were to formulate a zoocenological analysis of the gastropod communities in clay pit ponds, as well as to determine the relationships between the gastropods and their environmen...

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Bibliographic Details
Published in:Biodiversity and conservation 2006-10, Vol.15 (11), p.3617-3635
Main Authors: Lewin, Iga, Smoliński, Adam
Format: Article
Language:English
Subjects:
Alkalinity
Anisus vorticulus
Aquatic plants
Chlorides
Clay
Environmental factors
Ferrissia
Freshwater
Gastropoda
Introduced species
Nitrates
Planorbis
Ponds
Principal components analysis
Rare species
Threatened species
Valvata
Water pollution
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Summary:Issue Title: Themed Issue: Marine, Freshwater, and Wetlands Biodiversity Conservation The objectives of the present survey were to formulate a zoocenological analysis of the gastropod communities in clay pit ponds, as well as to determine the relationships between the gastropods and their environments, and to evaluate the water habitats in terms of their ecological-conservation value. The physical and chemical parameters of water, gastropod species and macrophytes occurring in the ponds indicate mesotrophic conditions. Principal Component Analysis (PCA) reveals a correlation between gastropod density and nitrates, a correlation between gastropod density and alkalinity, and additionally shows a correlation between gastropod density and chlorides. The pond surface area, nitrates, chlorides concentrate, alkalinity, and substratum have all affected these gastropod communities. The occurrence of the first permanent population of Ferrissia clessiniana (Jickeli, 1882) was recorded in Poland. Valvata naticina Menke 1845 has become a critically rare species (CR) due to the pollution of water environments. Five other species, e.g. Anisus vorticulus (Troschel, 1834) and Planorbis carinatus O.F. Müller, 1774 are recorded on the Polish Red List of Species. The clay pit ponds of the Ciechanowska Upland, because of their distinctive environmental features, provide a refuge where a number of rare, threatened and alien gastropod species live.[PUBLICATION ABSTRACT]
ISSN:0960-3115
1572-9710
DOI:10.1007/s10531-005-8347-4