Some Information on Testate Amoebae from Spitsbergen
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Abstract
In 8 samples taken in periodic puddles and brooks flowing from snow fields, altogether 29 taxa were found. A probably new species in the genus Difflugia is described as well as a new form of Arcella discoides f. compressa n. forma. The occurrence of a recently described species, Centropyxis pontigulasiformis Beyens & Chardez 1986, at further stations of the Spitsbergen Archipelago was confirmed. Of the taxa found by me 11 had not been described from Spitbergen. A mass occurrence (more than 2,000 individuals) was noticed in the species Plagiopyxis labiata (Sample 4b). The index of species diversity was highest in algal periphyton (Sample 3: H’ = 2.746); the highest equitability index was found in detritus (Sample 5a: E = 1.146) and in algal periphyton (Sample 3: E = 1.145).
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