26 KB2300 KB24 KB196220242010Kalan, GregorKošar, Tanjaštevilka:23letnik:23str. 25-37ISSN:0506-4252COBISSID:2983590URN:URN:NBN:SI:doc-MJ9PSMY5slZavod Republike Slovenije za varstvo naravne in kulturne dediščineVarstvo naravebotanikaenvironmental protectionpopulacijePulsatilla grandisRhododendron-Park Bremenvarstvo naravevelikonočnicaRazvoj in uporaba metode za spremljanje velikosti populacije velikonočnice (Pulsatilla grandis)| Development and use of the method for the Pasque Flower (Pulsatilla grandis) population size monitoring|The paper discusses the method designed for the Pasque Flower (Pulsatilla grandis) population size monitoring. The method has been developed on the basis of a prolonged monitoring of the changes in the Pasque Flower populationsize at Boletina near Ponikva. The census carried out according to this method provided us with the flowerćs first population estimates, by whichthe morphological characteristic that a single Pasque Flower can have several flowering shoots was taken into account. The results of the censuses carried out so far (1,218 plants on average) are also given. In 2007, fewer flowering plants in comparison with previous years (485 plants) were established, presumably as a result of milder temperatures in the preceding winter. The paper further presents the obligatory elements of the annual report on the monitoring of the Pasque Flower abundance and the fieldwork survey sheetČlanek opisuje metodo za spremljanje številčnosti populacije velikonočnice (Pulsatilla grandis). Metodo smo razvili na podlagi večletnega spremljanja sprememb v velikosti populacije velikonočnice na Boletini pri Ponikvi. S štetjem po tej metodi smo dobili prve ocene velikosti populacije, ki so upoštevale morfološko značilnost velikonočnic, da ima lahko ena rastlina več cvetnih poganjkov. Podali smo tudi rezultate dosedanjih štetij (povprečno 1218 velikonočnic). V letu 2007 smo ugotovili zmanjšano število cvetočih rastlin v primerjavi s prejšnjimi leti (485 velikonočnic), kar naj bi bila po našem mnenju posledica milejših temperatur v predhodni zimi. Članek predstavlja obvezne elemente letnega poročila o spremljanju številčnosti velikonočnice in popisni list za terensko deloTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZavod RS za varstvo narave