20.500.12556/DKUM-68816 Relation between plant species diversity and landscape variables in Central-European dry grassland fragments and their successional derivates A systematic field survey of an area of 843 ha in the traditional Central-European agricultural landscape of Goričko Nature Park in Slovenia revealed 80 fragments of dry semi-natural grasslands. Vascular plant species diversity was studied in relation to landscape variables and to threat (Slovenian red-listed species). Our results show that fragment size does not affect plant species diversity. In addition, fragment shape index is not related to Alpha diversity. Higher Alpha diversity was observed for abandoned grassland fragments. The lowest Alpha diversity was perceived on more mesic fragments, where habitat specialists are much scarcer. It was confirmed that the highest diversity of specialists are in the driest fragments, both still mowed and abandoned. With an increase in the number of distinctly different bordering habitat types, the total number of species per fragment generally does not increase, except in the case of those fragments that are already in different succession stages. Abandoned and typical dry grasslands are associated with a higher number of bordering habitats. Typical dry grassland fragments and abandoned ones, which probably derived mostly from drier (less productive) grasslands, are found on lower altitude and have a lower shape index. Habitat specialists Sedum sexangulare, Polygala vulgaris and Spiranthes spiralis have higher frequency in fragments with a lower shape index. This means that these oligotrophic specialists occur in smaller fragments. But Orchis morio has higher frequencies of occurrence on polygons with a higher shape index, which confirms the observation that this species occurs in larger and more irregular fragments, as well as close to houses and fields and along the roads. habitat specialists traditional agricultural landscape semi-natural dry grasslands Goričko Nature Park NE Slovenia habitatni specialisti tradicionalna kulturna krajina polnaravna travišča suha travišča Krajinski park Goričko SV Slovenija true true true University of Zagreb, Faculty of Science, Department of Biology Angleški jezik Slovenski jezik Znanstveno delo 2017-10-24 13:02:28 2017-10-24 13:03:40 2026-09-10 12:30:40 2019-07-11 17:10:38 2017 0 0 8 str. št. 2 Letn. 76 2017 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0365-0588 581.5(497.411) 6134786 23132168 10.1515/botcro-2017-0001 0365-0588 URN:SI:UM:DK:8NVFF5PB Acta_Botanica_Croatica_2017_Pausic_et_al._Relation_between_plant_species_diversity_and_landscape_variables_in_Central-European_dry_grass.pdf Acta_Botanica_Croatica_2017_Pausic_et_al._Relation_between_plant_species_diversity_and_landscape_variables_in_Central-European_dry_grass.pdf 1 2089D53F1B48A830A2BB62E780BF8949 c60ff55f27cc456b940a2eb5f35bae5f267a0e295598c200e06287762d79fc1a 743757da-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/00cdb4b2-a1e0-48f9-a085-e5b33bb97e16 https://dk.um.si/Dokument.php?lang=slv&id=119829 http://www.degruyter.com/view/j/botcro.2017.76.issue-2/botcro-2017-0001/botcro-2017-0001.xml 1 https://dk.um.si/Dokument.php?lang=slv&id=119828 Fakulteta za naravoslovje in matematiko 0 0 0