Vpliv upravljanja z ekstenzivnimi travniki na pestrost dnevnih metuljev v dolini Rečice pri Laškem

Gaberšek, Špela (author), Verovnik, Rudi (mentor)

V magistrski nalogi smo raziskovali, kako upravljanje ekstenzivnih travnikov vpliva na pestrost dnevnih metuljev v dolini Rečice pri Laškem. Želeli smo ugotoviti, kakšna je vrstna pestrost dnevnih metuljev na gnojenih in negnojenih ekstenzivnih travnikih in kakšen je vpliv košnje na vrstno pestrost. V ta namen smo od konca aprila do konca avgusta izvedli devet popisov na 12 lokacijah. V tem času smo popisali 64 različnih vrst dnevnih metuljev. Od tega je devet vrst uvrščenih v Rdeči seznam metuljev Slovenije. Na podlagi vrstne pestrosti metuljev na posameznem območju in prisotnosti ogroženih vrst smo lokacije naravovarstveno ovrednotili, pri čemer smo ugotovili, da so nekateri travniki v Rečici pri Laškem naravovarstveno pomembni. V Rečici je prisotno veliko ekstenzivnih travnikov, saj gre za hribovit svet, kjer je malo površin primernih za intenzivno kmetijstvo. Vrstna pestrost na negnojenih travnikih je večja, kot na gnojenih. Prav tako se na gnojenih travnikih ne pojavljajo ogrožene in zavarovane vrste dnevnih metuljev. Uporaba gnojil negativno vpliva na specializirane vrste metuljev, ki so občutljive na spremembe v okolju. V naši raziskavi so bili zajeti ekstenzivni travniki, ki so bili največ dvakrat košeni. Ugotovili smo, da je bila največja pestrost dnevnih metuljev na nekošenem travniku. Z izjemo ene lokacije, so travniki, ki so bili dvakrat košeni, vrstno revnejši kot enkrat košeni travniki. Za ohranjanje vrstne pestrosti metuljev bi bilo potrebno prilagoditi način gospodarjenja. Potrebno bi bilo ozaveščati kmete in lokalno prebivalstvo o tradicionalnih oblikah kmetovanja, kjer prevladujejo ekstenzivno gojeni travniki in brez vnosa gnojil in pesticidov ter dolgoročen vpliv ohranjanja biodiverzitete na celotno prebivalstvo.

• Language: Slovenian
• Keywords: dnevni metulji
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: PEF - Faculty of Education
• Year: 2019
• PID: 20.500.12556/RUL-110699
• COBISS.SI-ID: 12588873
• Publication date in RUL: 23.09.2019

GABERŠEK, Špela, 2019, Vpliv upravljanja z ekstenzivnimi travniki na pestrost dnevnih metuljev v dolini Rečice pri Laškem [online]. Master’s thesis. [Accessed 5 April 2025]. Retrieved from: http://pefprints.pef.uni-lj.si/5950/

Secondary language

• Language: English
• Title: Impact of extensive meadows management on butterfly diversity in the Rečica valley near Laško

Abstract

This master’s thesis focuses on how the management of extensive meadows affects the butterfly diversity in the valley of Rečica pri Laškem. The goal was to determine species diversity on improved and un-improved extensive meadows and the effect of number of mowings on species diversity. For this purpose, 9 surveys on 12 locations were conducted between the end of April and the end of August. During this period, 64 different species of butterflies were recorded, nine of them are included in the Slovenian Red List of Endangered species. Based on the species diversity and the presence of threatened species, the locations were evaluated from the nature protection point of view. We concluded that some meadows in the valley of Rečica pri Laškem are of great importance for butterfly conservation. Rečica features many extensive meadows, as it is a mountainous area where not much of the terrain is suitable for intensive agriculture. Species variety in non-fertilised areas is larger than in fertilised ones. Fertilised meadows lack endangered and protected species of butterflies. The use of fertilisers has a negative impact on specialized butterfly species, which are sensitive to environmental changes. The study focused mainly on extensive meadows which were mown no more than twice. The results showed that the single unmown meadow had the largest diversity of butterflies. Except in one location, the meadows which were mown twice hosted less species than the meadows mown only once. For the conservation of the species diversity of the butterflies, some changes should be introduced in the management of the meadows. Farmers and local people should be informed about the importance of traditional farming characterized by extensive meadows without the use of fertilisers and pesticides and the long-term impacts of the conservation of biodiversity on human population.

• Keywords: butterflies