The mountain Apollo is becoming rarer and rarer in Slovakia. (source: WIKIMEDIA CC)
In the past, one of the largest butterflies in Europe was prevalent in the Liptov region, northern Slovakia. However, the situation has changed drastically, with experts saying that only two adult individuals were registerd in recent years in the area of Liptov Castle.
"This is pitifully few to maintain a stable population in this location," describes Erika Feriancová, a Tatra National Park zoologist. The insect's population density has significantly decreased in most monitored locations and the situation is becoming alarming.
With a wingspan of around 6 to 8 centimetres in males and up to 9 cm in females, the mountain Apollo (Parnassius apollo) is a typical mountain butterfly with off-white colour and striking red and black eyespots.
It is also protected.
Early mowing does not help the Apollo
In order for the Apollo to thrive, regular mowing of its habitat is necessary, usually at the end of July or August. If done earlier, the butterfly is unable to gather enough food from honey plants and the population cannot grow.
Last year, the area around Liptov Castle was mowed in June, which was too early according to the zoologist.
Mowing is necessary to prevent invasive plant species to take root. The zoologist adds that in the past, suitable conditions for the butterfly were maintained by grazing and managing of rocky cliffs.
In addition, illegal capture for collecting purposes also has a negative impact on the species. That is why experts do not make the areas the Apollo inhabits public.
Feriancová also adds that hikers should not catch the butterfly or pick flowering plants.
