20.500.12556/DiRROS-7663 Vplivi okoljskih dejavnikov na prostorsko razporeditev divjega prašiča (Sus scrofa l.) v Sloveniji Effects of environmental factors on the wild boar (Sus scrofa l.) spatial distribution in Slovenia Številčnost in območje razširjenosti divjega prašiča (Sus scrofa L.) sta se v Sloveniji in drugih evropskih državah v zadnjih desetletjih občutno povečala; posledično so narasle tudi škode, ki jih povzroča v kmetijstvu. V raziskavi smo preučili, kateri okoljski dejavniki ključno vplivajo na prostorsko razporeditev divjega prašiča, in za Slovenijo ugotovili njegovo sedanje in potencialno območje razširjenosti. Raziskava temelji na velikem vzorcu (N = 5.977) georeferenciranih lokacij odvzema prašiča iz vse Slovenije in GIS-podatkovnih plasteh (25 okoljskih spremenljivk). Analize kažejo, da so gostote divjega prašiča največje v območjih: (a) z večjo razpoložljivosti energijsko bogate hrane (odrasli sestoji listavcev, krmišča) in dostopnostjo kritja (kmetijske površine blizu gozda, sukcesijske površine); (b) kjer so temperature visoke, zime mile, z malo snega (verjetnost rabe narašča s temperaturo in upada s količino padavin). Njegova prostorska razporeditev je odvisna tudi od gozdnatosti in stopnje fragmentacije gozda. Zdaj poseljuje 55 % Slovenije, njegov potencialni habitat pa obsega 67 % države. Razširjenost inštevilčnost divjega prašiča se bosta zato verjetno še povečevala, zlasti če se bodo nadaljevali sedanji trendi okoljskih sprememb (naraščanje temperature,povečevanje gozdnatosti, izginjanje iglavcev). Population size and range of wild boar (Sus scrofa L.) have increased significantly during the past decades in Slovenia, as well as in other European countries. Simultaneously, this has caused an increase in agricultural damages. In this study, we examined the influence of various environmental factors on wild boar spatial distribution, and identified its current and potential population distribution range for Slovenia. The researchis based on a large sample (N = 5.977) of georeferenced locations of boar harvested from the entire country and on GIS data layers (25 environmental variables). Analyses revealed that wild boar densities are highest in areas: (a) with outstanding availability of energy-rich food items (i.e. adult deciduous forests with high hard mast production and supplemental feeding places) and good cover accessibility (i.e. agricultural areas near forests and early successional areas); (b) where the temperatures are high andwinters are mild with low snowfall (the probability of use increases with temperature and decreases with quantity of precipitation). Spatial distribution of wild boar also depends on the percentage of forests and the level of forest fragmentation (i.e. size of forest fragments). Currently, boars inhabit 55% of Slovenia, yet the potential habitat extends up to 67% of the country. The wild boar population size and range are therefore likely to increase, especially if the current trends of environmental changes continue, such as rising temperatures, increased forested area, and a decrease in coniferous trees. divji prašič prostorska razporeditev okoljski dejavniki fragmentacija dopolnilno krmljenje model habitata logistična regresija wild boar Sus scrofa L. spatial distribution environmental factors fragmentation supplemental feeding habitat model logistic regression true false true Slovenski jezik Angleški jezik Znanstveno delo 2017-07-12 09:18:49 2017-07-12 09:18:49 2022-08-12 14:10:51 0000-00-00 00:00:00 2006 0 0 str. 3-20 Vol. 81 2006 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*11(045) 0351-3114 URN:NBN:SI:doc-PR1G83OL 1806246 6206978 RAZ_Jerina_Klemen_i2006.pdf RAZ_Jerina_Klemen_i2006.pdf 1 A38DE60608E4A6F0F97EA97C51A27331 2dcd32eea1f5cdb8496252a7edef7a9164bc855d67be62d0c3fe14bee45b94e9 2107d31e-17b5-11ed-b6b8-001a4af901a5 20.500.12556/dirros/4abb4733-671a-4601-b898-40efa303a27e https://dirros.openscience.si/Dokument.php?lang=slv&id=9528 Gozdarski inštitut Slovenije Acta Silvae et Ligni 0 0 0