The Aarnescht does not only have a rich flora but there are also many different fauna species to be found. Especially the semi arid grassland offers a vital space for many protected and endangered animal species.
The fox, the deer, the rabbit and the hare becoming more and more rare, are present on the Aarnescht.
The Eurasian Badger is a very special inhabitant of the protected zone. At daytime he is very shy, hiding in his den. He only comes out at night to look for food, eating as well plants as small animals. As he is hibernating to stock thick fat layers, you can see him very rarely in wintertime.
Among the 57 species that could be counted until now, there are 39 breeding species and 11 endangered species of the Red List as for example the Grey Partridge (Perdix perdix), the Redbacked Shrike (Lanius Collurio), the Great Grey Shrike (Lanius excubitor) and the Wood Lark (Lullula arborea), who is also very rare.
The semi arid grasslands are rich in flowers and offer perfect conditions to butterflies. Until now 136 different species had been registered in the protected zone, among 35 of them are on the Red List of endenagered species. The most characteristic species on the Aarnescht are: Clouded Yellow (Colias australis), Erebia medusa, Adonis Blue (Polyommatus bellargus), Narrowbordered Five-Spot Burnet (Zygaena linicerae), Swallowtail (Papilio machaon), Meadow Brown (Maniola jurtina).
|Swallowtail / Papilio machaon
|Meadow Brown / Maniola jurtina
Crickets and locusts
There are 22 different species to be found on the Aarnescht, among 9 are on the Red List. The most characteristic species of locusts of this semi arid grassland is the Phaneroptera falcata.
On the Aarnescht there are 102 different kinds of True bugs, among 18 are rare species. 2 species are the only ones find on national territory: Brachyarthrum limitatum and Drymus pumilio.
48 different spider species could be counted and among them some very remarkable ones: the Wasp spider (Argiope bruenichi) or the Purseweb spider.