Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Constanta-Mihaela ION, Minodora MANU, Mihai STĂNESCU, Constantin CORDUNEANU, Cosmin MANCI, Florența-Elena HELEPCIUC, Ana-Maria MOROȘANU, Ciprian-Constantin BÎRSAN, Miruna-Maria ȘTEFĂNUȚ, Loredana BUTA, Anca MANOLE, Roxana-Georgiana NICOARĂ, Sorin ȘTEFĂNUȚ
Until recently, viable populations of Lycaena helle (violet copper butterfly) from Romania were known from low-altitude areas (below 600 m asl). However, this glacial relict faces heavy threats across its Eurosiberian range, with declines in abundance, distribution and habitat quality frequently reported. Many populations have disappeared, especially from the lowland regions, with the currently known populations being found mainly at higher altitudes. Recent national peatland restoration projects in Romania have led to faunal discoveries, including new populations of L. helle in the alpine bioregion. This current study provides new and original information on population size estimates from Dornelor Depression, describes other areas inhabited by this protected species in Suceava County, and reexamines older museum specimens. Given the limited knowledge about the ecological requirements of high-altitude L. helle populations, we review global conservation practices. Evidence indicates that maintaining meadows at mid-successional stage is essential for supporting this butterfly. Therefore, management should focus on balancing rotational mowing or moderate intensity grazing to maintain heterogeneous vegetation while preventing woody encroachment due to abandonment. These practices ensure appropriate coverage for the larval host plant, Bistorta officinalis.
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