Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare

Abstract

The paper gives review about effects of local climate and forestation to the leveret’s percentage, of brown hare population research in hunting grounds of Serbia. Performed research rely to measurement of dry eye lens (Lens crystaline), basis of which it can perform precise classification by age category of hunted hares. Practically, for planning degree of use brown hare, the most important are age category: up to one year, and over one year. The statistical analysis of data collected during several years and in various hunting grounds of Serbia, has not found significant influence factors of climate (temperature and precipitation) and the degree of forestation (as an indicator of the benefits of environment and natural resources, food). Based on the literature review, it can be concluded that the size and age structure of the population of brown hare have a big impact, in addition to examined, and anthropogenic factors.

U radu je dat pregled domaćih istraživanja uticaja klime i šumovitosti na procenat mladih u populaciji zeca u lovištima Srbije. Obavljena ispitivanja se baziraju na merenju osušenog očnog sočiva (Lens crystalina), na osnovu čega se može izvršiti precizno razvrstavanje ulovljenih životinja u starosne kategorije. Za praksu planiranja stepena korišćenja zeca najznačajnije su starosne kategorije do jedne i preko jedne godine. Pri statističkoj analizi podataka prikupljenih iz više godina i iz različitih lovišta Srbije nije utvrđen signifikantan uticaj faktora klime (temperature i padavina) i stepena pošumljenosti (kao pokazatelja pogodnosti životne sredine i prirodnih resursa hrane). To ukazuje da je uticaj dugih faktora i njihovo interakcijsko delovanje mnogo veće. Na osnovu pregleda literature može se zaključiti da na brojnost i starosnu strukturu populacije zeca veliki uticaj imaju, pored ispitivanih, pre svega antropogeni faktori.