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Coenagrion armatum is a critically en- dangered species in Poland which has been vanishing in the western part of the country. Its refuge is eastern borderland, however, no contemporary existing populations have been found from the northern part of this area so far. The author gives the description of the first site of C. armatum known from Polish part of the Lithuanian Lake District: Lake Gulberek...
Coenagrion armatum is a Siberian species whose south-western boundary of its distribution area goes through Poland. Formerly, it passed through the western part of the country. In the last 30–40 years it moped back ca. 300 km due to climatic and anthropogenic environmental changes. Currently, it runs through eastern regions – its putative form is shown on Fig. 1. The authors give five new sites of...
Coenagrion armatum (CHARPENTIER, 1840) belongs to the critically endangered species in Poland. The main reasons for its regress are: drying out the habitats due to the climate and anthropopression as well as eutrophisation and the changes of space structure and species composition of veg- etation associated with this (BERNARD et al. 2009). The number of sites of this species in Poland is underestimated...
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