Vplivi okoljskih dejavnikov na prostorsko razporeditev gamsa (Rupicapra rupicapra L.) v gozdnatem območju Jelovice z obrobjem: Impact of environmental factors to spatial distribution of Chamois (Rupicapra rupicapra L.) in the forest area of Jelovica with its margins

Autor: Černe, Blaž, Hafner, Miran
Jazyk: slovinština
Rok vydání: 2010
Zdroj: Gozdarski vestnik
Popis: The chamois (Rupicapra rupicapra L.) is a constitutive part of the fauna of numerous mountain ecosystems where it inhabits the areas with the altitude between 800 and 2300 m. In the studied area of Jelovica with the surface of ca. 58.000 ha it lives in the low mountain range. In the research we studied which environmental factors had key impact to its spatial distribution. The study is based on the sample N=524 georeferential taking locations and GIS data layers (18 environmental variables). The logistic regression anticipates the adequacy of the space for the chamois habitat to be conditioned by the values of 9 environmental factors. The analyses show the chamois densities to be the largest on the lower elevations on moderate slopes, in forests with lowplant species diversity, low forest edge density, rather large share of coniferous trees, low share of shallow soil, somewhat lower stand wood stock, in less illuminated stands and in stands with a moderate share of thick tress. Gams (Rupicapra rupicapra L.) je sestavni del živalstva številnih gorskih ekosistemov, kjer poseljuje območja od 800 do 2300 m n. v. V proučevanem območju Jelovice z obrobjem s površino 58.000 ha živi v gozdovih sredogorja. V raziskavi smo proučili, kateri okoljski dejavniki ključno vplivajo na njegovo prostorsko razporeditev. Raziskava temelji na vzorcu N = 524 georeferenciranih lokacij odvzema in GIS-podatkovnih plasteh (18 okoljskih spremenljivk). Logistična regresija napoveduje, da je primernost prostora za habitat gamsa pogojena z vrednostmi devetih okoljskih dejavnikov. Analize kažejo, da so gostote gamsa največje v nižjih nadmorskih višinah, na zmernih nagibih, v gozdovih z nizko pestrostjo rastlinskih združb, majhno gostoto gozdnega roba, precejšnjim deležem iglavcev, majhnim deležem plitvih tal, nekoliko manjšo lesno zalogo sestojev, v manj presvetljenih sestojih ter v sestojih z zmernim deležem debeljakov.
Databáze: OpenAIRE