Author/Editor		Verovnik, Rudi
Title		A contribution to the knowledge of the butterfly fauna (Lepidoptera: Rhopalocera) of the Cerkljansko-Idrijsko region, west Slovenia, with notes on their vertical distribution
Translated title		Prispevek k poznavanju favne dnevnih metuljev (Lepidoptera: Rhopalocera) Cerkljansko-Idrijske regije (zahodna Slovenija) s podatki o njihovi vertikalni razširjenosti
Type		članek
Source		Natura sloveniae
Vol. and No.		Letnik 2, št. 2
Publication year		2000
Volume		str. 47-59
Language		eng
Abstract		Results of the fieldwork carried out by a lepidopterology group at the Student Research Camp Cerkno '00 are presented. Altogether, 77 butterfly species were recorded between June 26th and July 3rd 2000 at 38 localities, including individual observations. The most interesting discovery was the presence of Maculinea telejus Bergstr. in the Bača valley just south of the Julian Alps. Among typically alpine species, Aricia artaxerxes F. was recorded exclusively at lower altitudes, whereas its colline sister species A. agestis Schiff was found near the top of Mt. Črna prst at an altitude around 1800m. The highest diversity of butterfly species and habitat types was observed between 500 and 750 m. Despite the geographical heterogeneity, only few parts of the region have escaped intensive exploration and could be considered important habitats for the threatened butterfly species in Slovenia. The highest conservation value, should be acknowledged to the presence of the relatively large and probably interconnected subpopulations of Maculinea arion L. in the eastern part of the region.
Summary		Prispevek predstavlja rezultate dela lepidopterološke skupine na Raziskovalnem taboru študentov biologije Cerkno'00. Na 38 lokalitetah, vštevši tudi posamična opazovanja, je bilo med 26. julijem in 3. avgustom 2000 opaženih 77 vrst dnevnih metuljev (Rhopalocera). Najpomembnejše je zagotovo odkritje dveh populacij Maculinea telejus Bergstr. v dolini Bače tik pod južnim delom Julijskih Alp. Med metulji z značilno alpinsko raširjenostjo je bila vrsta Aricla artaxerxes F. najdena le v nižjih, predelih, njena sestrska nižinska vrsta A. agestis Schiff. pa le na Čmi prsti na višini okoli 1800 m. Največja pestrost vrst metuljev in habitatnih tipov je bile zabeležena v višinskem pasu med 500 in 750 m. Kljub geografsko zelo razčlenjeni konfiguraciji so se nekateri deli tega območja izognili intenzivnemu kmetijstvu in gozdarstvu in jih lahko štejemo. za pomembne za ohranitev ogroženih vrst metuljev v Sloveniji. Največji naravovarstveni pomen pa imajo dokaj velike in verjetno med seboj povezane subpopulacije vrste Maculinea arion L. v vzhodnem delu regije.
Descriptors		BUTTERFLIES ECOSYSTEM POPULATION DENSITY LEPIDOPTERA