20.500.12556/DKUM-66869 Pollinators of Helleborus niger in Slovenian naturally occuring populations Opraševalci črnega teloha (Helleborus niger) v naravnih populacijah v Sloveniji The study is based on documentation and analysis of the major visitors and pollinators of the Christmas rose (Helleborus niger L.) flowers in Slovenian naturally occurring populations. The emphasis was put on 5 groups of insects: bees, bumblebees, large flies, small dipterous flies and pollinators of minor importance. Systematic observations took place in March 2003, at two different locations: on the valley of Bohinjska Bela and on the Peca Mountain. The first location was not far from a rural area, while the second one was in an isolated area, completely in the wild. The analysis of insect activity showed that there were obvious differences in frequency of visits among the insect groups investigated, locations and time of day. In the population of Bohinjska Bela, bees were the most important pollinators, with the highest activity occurred between 10 a.m. and 11 a.m. In the isolated population in Peca the most frequent visitors were small dipterous flies. The study suggests that the Christmas rose is probably an entomophylous (the most important pollinators are insects, such as bees and flies) and predominantly cross-pollinating species. The entomophylous nature appears to be closely associated with the specific botanic characteristics of flowers. Another pollinating agent is probably wind. Raziskava je bila opravljena na črnem telohu (Helleborus niger L.) in obsega dokumentiranje in analizo glavnih opraševalcev črnega teloha v naravnih populacijah. Osredotočili smo se na 5 skupin insektov: čebele, čmrlje, muhe, majhne dvokrilne insekte in opraševalce manjšega pomena. Sistematično opazovanje je potekalo v marcu 2003 na dveh lokacijah: v dolini Bohinjska Bela in na planini Peca. Prva lokacija je bila blizu naselja, medtem ko je bila druga lokacija daleč od ruralnega okolja v naravi. Analize opraševanja, povezane z aktivnostjo žuželk, nakazujejo, da obstajajo očitne razlike v pogostnosti obiska med proučevanimi skupinami žuželk, lokacijo in dnevnim časom. V populaciji Bohinjska Bela so bili najpomembnejši opraševalci čebele z največjo aktivnostjo med 10 in 11 uro zjutraj. V populaciji Peca so bili najpogostejši obiskovalci majhni dvokrilni insekti. Opazovanja kažejo, da je črni teloh verjetno prevladujoče tujeprašna, entomofilna vrsta (najpomembnejši opraševalci so insekti, predvsem čebele in muhe). Entomofilna narava je ozko povezana z botaničnimi lastnostmi cveta. Med možne opraševalce spada tudi veter. chrismas rose helleborus niger wild populations pollinators open pollination cross pollination population dynamics plant population črni teloh helleborus niger naravne populacije oprašavanje opraševalci true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-07-13 13:40:09 2017-07-13 13:40:59 2022-08-01 13:17:22 2019-07-11 16:01:27 2006 0 0 str. 205-211 št. 2 Letn. 87 2006 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1581-9175 582.675 213840640 4801145 1581-9175 URN:SI:UM:DK:RR67ZQVH Acta_agriculturae_Slovenica_2006_Susek,_Ivancic_Pollinators_of_Helleborus_niger_in_Slovenian_naturally_occuring_populations.pdf Acta_agriculturae_Slovenica_2006_Susek,_Ivancic_Pollinators_of_Helleborus_niger_in_Slovenian_naturally_occuring_populations.pdf 1 9237E266DEA2774631B2F56C2F55F11B b7b754f8bca211195cde1333109b4827976b3ff6d978ed05b37071f2ef02974e 6aad85dc-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/dee01c7f-5c11-4d4f-8b0f-22faf20acf02 https://dk.um.si/Dokument.php?lang=slv&id=114192 http://aas.bf.uni-lj.si/september2006/02susek.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=114189 Fakulteta za kmetijstvo in biosistemske vede 0 0 0