Abstract
Temporary
pools are unusual habitats because they share features of aquatic and
terrestrial ecosystems. They are habitats of community interests according to
the Natura 2000 network (Natura code: 3130 and 3170), and can be found in
several climatic regions where they harbours various wetland habitats. Whereas
Mediterranean temporary pools are well studied, only a few papers deal with
their continental counterparts, probably because they are mainly found on
arable fields often displaying decades-lasting dormancy. This study aims at
filling this gap in our knowledge by evaluating plant species composition,
habitat types and diversity of temporary pools in a region of continental
climate. We analysed data from 185 phytosociological relevés (79 historical and
106 contemporary data) from different types of waterlogged arable fields,
including rice paddy fields, from the Pannonian Ecoregion. We found significant
differentiations of rice paddy fields from ‘other’ waterlogged arable fields
according to ordination, classification and regression analyses. Diversity
partitioning of species abundance data showed that these habitats have a very
high alpha (species number, Simpson and Shannon) and beta diversity, which
means that all the sites have high importance in habitat conservation. We found
many vascular plants listed in IUCN and national red lists among the indicator
and characteristic species of continental temporary pools. Our results
demonstrate the conservation importance of continental temporary pools in
relation to habitat and biodiversity management and conservation planning.
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