20.500.12556/DKUM-80820 Preferenca govnačev (coleoptera: polyphaga: scarabaeoidea) do različnih vrst iztrebkov A dung beetle's (coleoptera: polyphaga: scarabaeoidea) preference to various types of dung Hrošči govnači naseljujejo vse zoogeografske regije sveta. Največje število vrst najdemo v tropskih predelih in savanah. V Evropi se vrstna pestrost in pomembnost posameznih družin po regijah razlikuje. So koprofagne žuželke, večinoma oportunisti, ki se prehranjujejo z različnimi iztrebki brez večje diskriminacije, medtem ko nekatere vrste kažejo nagnjenost k prehranjevanju z iztrebki določenih skupin vretenčarjev. Govnači iztrebke pojedo, prenesejo v nižje dele prsti ali pa na druga mesta. Hranijo se s tekočo ali deloma tekočo hrano katere vonj zaznavajo s pomočjo posameznih olfaktornih celic, ki so nameščene na antenah. Pri odlaganju jajc govnači uporabljajo tri osnovne strategije, ki vplivajo na vrsto ekoloških procesov. Raziskavo smo delali na območju Kozjaka, kjer smo s pomočjo talnih pasti primerjali privlačnost treh različnih vrst iztrebkov (kravjih, ovčjih in pasjih), vpliv bližine pašnika na številčnost in vrstno pestrost govnačev ter primerjali vrstno sestavo govnačev v iztrebkih rastlinojedov in mesojedov. Na obeh lokacijah smo ulovili 270 osebkov, ki pripadajo 18 vrstam govnačev. Ugotovili smo, da ima bližina pašnika določen vpliv na številčnost in vrstno pestrost govnačev, ki pa sta bili največji v ovčjih iztrebkih, sledijo jim pasji in kravji. Dung beetles inhabit all zoogeographical regions of the world. The largest number of species is found in the tropics and savannas. In Europe, the species diversity and importance of individual families varies from region to region. Dung beetles are coprophagous insects, mostly opportunists, that feed on a variety of feces without much discrimination, while some species show a tendency to feed on the feces of certain groups of vertebrates. Dung beetles eat the excrement, transfer it to the lower parts of the soil or to other places. They feed on liquid or partially liquid food, the smell of which they detect with the help of individual olfactory cells placed on the antennae. When laying eggs, dung beetles use three basic strategies that affect a number of ecological processes. The research was conducted in the Kozjak area. We used baited pit-fall traps to analyze the attractiveness of excrements of three different species (cow, sheep and dog) and the impact of pasture proximity on the abundance and species diversity. We also analyzed the species composition concerning the excrement of herbivores and carnivores. We captured 270 individuals that belong to 18 dung beetle species. The results show that the proximity of the pasture has an impact on the abundance and species diversity. The largest abundance and species richness was observed in traps baited with sheep’s excrements, followed by dog’s and lastly cow’s excrements. govnači Scarabaeoidea koprofagija vrstna pestrost abundanca prehranjevalne preference dung beetles coprophagy Scarabaeoidea species richness abundance resource preferences true true false [T. Mlakar] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-10-22 09:55:49 2022-01-10 11:26:48 2023-04-12 15:12:24 0000-00-00 00:00:00 2021 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 632.76:595.768.1:614.95(043.2) 90650883 MAG_Mlakar_Tjasa_2021.pdf MAG_Mlakar_Tjasa_2021.pdf 1 9728E8D8B3F77C72579203A20C5C2D69 7469b5585b4144f930b42e3eaf7eaa708915f13365c3d573f51ccd09ad1e8237 7b7faa28-3311-11ec-886c-00155d000105 20.500.12556/dkum/22e5e033-f089-4831-a701-a82a1e63ade7 https://dk.um.si/Dokument.php?lang=slv&id=155107 Fakulteta za naravoslovje in matematiko 0 0 0