20.500.12556/DKUM-95780 Povezava med barvo cvetov in abiotskimi dejavniki v različnih tipih travišč magistrsko delo Relationship between flower colour and abiotic factors in different grassland types V magistrski nalogi smo preučili izbrane morfološko-funkcionalne poteze (MFP) 41 rastlinskih vrst iz 27 popisov vzorčenih na štirih tipih travišč v Mariboru in okolici. Ta so bila ekstenzivni travnik, intenzivni travnik, urbana ruderalna trata ter urbana intenzivna trata. Osredotočili smo se na meritve lastnosti barv cvetov (refleksivnost, kromatičnost, svetlost) v povezavi s pridobljenimi MFP, Ellenbergovimi indeksi in indeksi motenj. Iz literature smo pridobili podatke o opraševalcih rastlinskih vrst. Skupno smo opravili 470 spektrofotometričnih meritev. Izvedli smo korelacijsko analizo, posplošen linearni model, korespondenčno analizo s odstranjenim trendom (DCA) in analizo glavnih komponent (PCA). Na vseh traviščih sta prevladovali rumena in bela barva cvetov. Čeprav smo rastišča uvrstili kot različno stresne se je izkazalo, da so rastni pogoji ugodni na vseh površinah. To je potrjevala prevladujoča kompetitorska strategija rastlin na vseh traviščih, hkrati pa razen vpliva hranil v tleh na svetlost barve ni bilo značilnih korelacij med barvnostjo (kromatičnostjo) cvetov in: LDMC, indeksi motnje, svetlobo, ter temperaturo. Z magistrsko nalogo smo prispevali k oblikovanju protokola za spektrofotometrične meritve barv cvetov, ter ustvarili za FNM UM lastno bazo s spektri refleksivnosti cvetov, ki se lahko v prihodnje še močno razširi in uporabi pri ostalih raziskavah barve cvetov, vida opraševalcev ter mehanizmov biotske pestrosti. In this master's thesis, we studied selected plant functional traits of 41 plant species collected from 27 samples across four grassland types in Maribor. These were extensive grassland, intensive grassland, urban ruderal grassland, and urban intensive grassland. Our primary focus was on the measured floral colour traits (reflectance, chroma, luminosity) in connection with plant functional traits, Ellenberg's indicator values, and disturbance indicator values. We obtained data on pollinators for each plant species. A total of 470 spectrophotometric flower colour measurements were conducted. Statistical analyses included correlation analysis, generalized linear model, detrended correspondence analysis (DCA) and principal component analysis (PCA). We found that yellow and white flower colours predominated across all four grassland types. Although we classified the habitats as differently stressed, it turned out, that the growing conditions were favourable in all sites. This was evident in the predominant competitor strategy on all sites, while, apart from the influence of nutrient availability on colour brightness, there were no significant correlations between flower chromaticity and: LDMC, disturbance values, light availability and temperature. With this thesis, we contributed to the development of a protocol for spectrophotometric flower colours measurements and established FNM's own database with reflectance spectra for selected species. This database can be further expanded and applied in the future studies on flower colour, pollinator vision and biodiversity studies. spektrofotometrija refleksivnost morfološko-funkcionalne poteze (MFP) rastlin motnja Ellenberg (EIV) spectrophotometry reflectance plant functional traits (PFTs) disturbance Ellenberg (EIV) true true false [E. Gros] Slovenski jezik Angleški jezik Slovenija; Maribor (Slovenija); Magistrsko delo/naloga 2025-10-21 18:50:54 2025-11-18 09:21:32 2025-11-19 03:10:04 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor XI, 66 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 633.2.03:581.145.1(497.4Maribor)(043.2) 257555715 MAG_Gros_Eva_2025.pdf MAG_Gros_Eva_2025.pdf 1 0CA96031DFB802408DA7548DED7B63A3 de6ac4165f9df43685586db06240bdacb07ddc4f85c86486155b2f6bb7cdae90 e0bd6c8e-ae9f-11f0-a9c6-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=200077 Fakulteta za naravoslovje in matematiko 0 0 0