Effects of pollination limitation on reproductive success of a rare and endangered plant species Orlaya grandiflora in the city of Vienna
Abstract
Pollination by insects is an important part of live circle of many plant species and the availability of pollinators – a significant ecological factor for their population dynamics. As model species Orlaya grandiflora, an insect-pollinated in the surrounding of Vienna rare and endangered Umbelliferae species was chosen. Orlaya is cultivated as an arable weed preservation culture in the botanical garden of the University for Natural Resources of Vienna (BOKU), and several small remnant populations are known form the surrounding of the city. We study the availability of pollinating insects in comparison between the urban site (botanical garden) and natural sites in rural areas. Consequences of pollination limitation should be studied experimentally by excluding the insects and applying of pollination artificially. Fruit setting rate and vitality (germination behaviour) of seeds at studied plants in dependence of pollination are the main parameters to be surveyed. The results of the study should help by the understanding of pollination limitation phenomenon and by the development of nature conservation measures.
keywords pollination insects seed setting rarity
Publikationen
Bestäubungsbiologie der Orlaya grandiflora (Apiaceae)
Autoren: Dunst, L., Jirik, R., Diener,A., Peters, C., Rasran, L., Bernhardt, K.-G. Jahr: 2016
Conference & Workshop proceedings, paper, abstract
Vergleich von Blühstreifen innerhalb von Weingärten und Grünlandflächen in Weinbaugebieten am Stadtrand von Wien hinsichtlich Blütenangebot und Bestäubervielfalt
Autoren: Leonid Rasran, Alexander Diener, Bärbel Pachinger; Karl-Georg Bernhardt Jahr: 2017
Journal articles
Project staff
Leonid Rasran
Dipl.-Biol. Dr. Leonid Rasran
leonid.rasran@boku.ac.at
Tel: +43 1 47654-83118
Project Leader
01.04.2015 - 31.03.2016