Fertiggestellte Dissertationen seit 1995/Completed PhD Theses since 1995
2022
NEPEL Maximilian (2022) Investigating environmental factors shaping N2-fixing microbial communities in two distinctive terrestrial ecosystems - grassland soils and arboreal ant nests
2019
DELLINGER Agnes (2019) Pollinator shifts and floral evolution in Merianieae (Melastomataceae)
2016
ULRICH Silvia (2016) Pollen morphology and ultrastructure of selected Araceae species. New examples for the significance of pollen characters in systematics and for the spathe as an osmophore
2015
LÖFSTRAND Stefan (2015) Floral evolution in the sarracenioid clade (Actinidiaceae, Roridulaceae and Sarraceniaceae) of Ericales
NGUYEN Philipp (2015) Indoor pollen, its transfer to shoes and an outlook on its usefulness for forensic investigations
2012
BRÖDERBAUER David (2012) Evolution of trap pollination in the Araceae
SARAWICHIT Pakchanok (2012) Pollen and orbicular walls of selected species of Justicieae (Acanthaceae) and their systematic significance
2005
HUBER Werner (2005) Tree diversity and biogeography of four one-hectare plots in the lowland rainforest of the Piedras Blancas National Park ("Regenwald der Österreicher"), Costa Rica
KASTINGER Christoph (2005) Bestäubungsbiologie der Columnea-Arten (Gesneriaceae) im Piedras Blancas Nationalpark, Costa Rica
ÖLZANT Silvester (2005) New aspects of myrmecochory in Central european plants
WEISSENHOFER Anton (2005) Structure and vegetation dynamics of four selected one hectare forest plots in the lowland rain forests of the Piedras Blancas National Park ("Regenwald der Österreicher"), Costa Rica, with notes on the vegetation diversity of the Golfo Dulce region
2003
FISCHER Renate C. (2003) Chemical constituents of elaiosomes of myrmecochorous diaspores and their significance as food source for ants
1998
LINDENHOFER Andrea (1998) Polyandry in Rosidae - the origin of the polyandrous androecium in Rosidae, with special regard to Rosaceae
1996
SCHUMICH Günter (1996) Kompostextrakte als mögliche Bekämpfungsmittel des Mehltaubefalls im Weinbau. Ultrastrukturelle Untersuchungen des Echten Mehltaus, Uncinula necator, vor und nach der Behandlung mit Kompostextrakten
1995
SCHLAG Michael Georg (1995) Pflanzenpathologische Untersuchungen über das Eichensterben
Fertiggestellte Diplom-/Masterarbeiten seit 1995/Completed Diploma/Master theses since 1995
2024
EHN Corinna (2024) Pollination biology and chemical ecology of two co-flowering, fermented fruit mimicking Anthurium species (Master)
LINDHUBER Maria (2024) Floral resources for key pollinators along the biological corridor COBIGA in tropical rainforests of Costa Rica (Master)
PURGINA Carola (2024) Pollen morphology and ultrastructure of selected Orchidaceae species (Master)
STERN Rafaela (2024) Plant-Pollinator Interactions in Urban Ecosystems. Three Ruderal Plants in Vienna by Day and Night: Carduus acanthoides L., Clematis vitalba L., Sisymbrium loeselii L. (Master)
2023
BANDESHA Farida Tara (2023) Comparative pollen morphology with respect to different functional groups of pollinators in Araceae (Master)
KOC Alptekin (2023) Succession stages of the herbaceous layer in reforestation areas in southwestern Costa Rica (Master)
MICAI Giulia (2023) Floral resources for key pollinators along the “COBIGA” biological corridor in tropical rainforests of Costa Rica during the dry season (Master)
SCHWIENBACHER Bernhard (2023) Chemical ecology and pollination of co-flowering Cyclanthaceae species in Costa Rica (Master)
2022
BRKIC Amra (2022) Comparative pollen morphology of selected angiosperm species (Master)
GEIER Christian (2022) The late middle Miocene palynoflora of Gratkorn, Styria, Austria (Master)
PFROMMER Johannes (2022) Pollinator communities of six Anthurium species in different ecoregions of Costa Rica (Master)
SAUER Mark (2022) The pollination system of the common horse chestnut Aesculus hippocastanum (Hippocastanaceae) (Master)
SCHWENDER Aline (2022) Reproductive isolation: Daily fluctuation in floral scent emissions of several Anthurium species (Araceae) in Costa Rica, Central America (Master)
ZILIC Sandra (2022) The learning process of naïve bumblebees (Bombus terrestris) regarding the color and scent of Aesculus hippocastanum (Master)
2021
KOPPER Constantin (2021) Testing pollination syndromes in Melastomataceae (Master)
2020
DORMEIER Julia (2020) Floral development and function of the lever mechanism in the flowers of Brillantaisia (Acanthaceae) (Diplom)
DÜRR Sabine (2020) Spiderwebs as Natural Pollen Traps. Analysis of Spiderweb and Dust/Soil Surface Samples from Indoor and Outdoor Locations (Master)
ELEK Norbert (2020) Bestäubungsbiologie ausgewählter Anthurium und Spathiphyllum Arten (Araceae) im südwestlichen Costa Rica (Master)
HEDAYATI Aliyeh (2020) Phenotypic and biogeographic insights into the evolution of Lathyrus and Pisum in Southwest Asia (Master)
YOUSEFIAN Maryam (2020) Phenotypic and biogeographic insights into the evolution of Vicia and Lens in Southwest Asia (Master)
2019
KANDUTH Laura (2019) Urban pollination - Plant-pollinator interactions of two Trifolium species in relation to green area size (Master)
KÖLZER Karen (2019) Comparative analysis of pollen in honey: Foraging preferences of Austrian honeybee subspecies Apis mellifera carnica and Apis mellifera mellifera (Master)
KRIZAN Katharina (2019) Nature's pharmacy - how Azteca sp. ants keep their colony clean, using the host plant Cecropia sp. (Master)
STÖBERL Michael (2019) Diasporenverbreitung von Calla palustris L. und Arum cylindraceum Gasp. in Österreich (Diplom)
STUBITS Margit (2019) Pollination biology of four sympatric Spathiphyllum species (Araceae) in Costa Rica (Diplom)
2018
RAMEDER Michael (2018) Pollinator shifts and their relation to stamen morphology and seed number in the Merianieae (Melastomataceae) (Diplom)
2017
DIRR Lukas (2017) Pollen morphology and ultrastructure of selected Zingiberaceae and Costaceae species (Master)
HOLZER Cornelia (2017) Diversity in fungal patches of Cecropia-Azteca associations (Diplom)
STEHLIK Lena (2017) Anther threads in the balsaminoid families (Ericales) (Diplom)
WIESMANN Lisa (2017) Die funktionelle Diversität von Pflanzengemeinschaften aus der Sicht von blütenbesuchenden Insekten (Master)
2016
ASENBAUM Julia (2016) Pollination strategies of European Euphorbia (Master)
BIELOWSKI Walter Rafael (2016) A new approach on hetero- and homostylous Primula flowers using micro computed tomography-based 3D-modelling (Master)
NIGROWICS Marina (2016) Structure and function of explosive fruits and seed dispersal in Acanthaceae (Diplom)
SCHMIEDEL Josephine (2016) The importance of surface structures for the successful colonisation of the ant-plant Cecropia (Urticaceae) with their symbiotic Azteca ants (Formicidae, Dolichoderinae) (Master)
STEINER Isabelle (2016) Bestäubungsbiologie von Anthurium und Spathiphyllum (Araceae) im Südwesten Costa Ricas (Diplom)
2015
FLECK Sandra Caroline (2015) Signalstoffanalyse bei Piper sp. und der assoziierten Ameise Pheidole bicornis (Diplom)
FORSTER Stefanie (2015) Pollination ecology of four selected species of Araceae in the Golfo Dulce region, Costa Rica (Diplom)
FRANSCHITZ Anna (2015) Chemical composition of volatiles from myrmecophytic and non-myrmecophytic Piper species with regard to ant behavior (Master)
FRIEDL Katrin (2015) Das Patroullierverhalten auf jungen Blättern in der Piper-Pheidole Assoziation (Diplom)
KALTENBRUNNER Klaus (2015) Analyse der Futterkörperchen (Müller'sche Körperchen) in der Cecropia-Azteca Assoziation (Diplom)
OBERHAUSER Felix (2015) Not just ant-plants: Fungal patches and diazotrophic prokaryotes in the Cecropia/Azteca ant-plant symbiosis (Master)
2014
KREISBERGER Thomas (2014) The various contrivances by which pollen/ovule ratios are influenced in orchids (Diplom)
2013
BERNSCHERER Tamara (2013) The role of volatiles in the Piper/Pheidole association for ant recruitment (Diplom)
DELLINGER Agnes (2013) Floral Structure and Pollination Biology of Axinaea (Melastomataceae) (Master)
EHWEINER-HABERLEITNER Michael (2013) Sporenmorphologie ausgewählter "Gasteromycetes" (Diplom)
ETL Florian (2013) Reproduktionsökologie tropischer Aronstabgewächse (Araceae) am Beispiel von Dieffenbachia aurantiaca (Costa Rica) und Alocasia sarawakensis (Borneo) (Diplom)
FRIESENBICHLER Kerstin (2013) Diversity of hummingbirds and their floral resources in oil palm plantations and rainforest habitats in the lowlands of southern Costa Rica (Master)
KRONISTER Julia (2013) Die Infloreszenzentwicklung der Saniculoideae, Apiaceae (Diplom)
MAURER Lisa (2013) Development of unisexual flowers and dioecy in Schlegelia (Schlegeliaceae, Lamiales) (Diplom)
NEPEL Maximilian (2013) Specificity of the fungi used in carton runway galleries in the Azteca brevis/Tetrathylacium macrophyllum association (Diplom)
PRADER Sabine (2013) Pollenmorphologie und Ultrastruktur ausgewählter Taxa der Saxifragaceae (Diplom)
SODL Bernhard (2013) Palynologische Untersuchungen an ausgewählten Textilien aus forensischer Sicht (Diplom)
2012
GRASL Christine (2012) Palynologische Untersuchung an einem Kraftfahrzeug aus forensischer Sicht (Diplom
2011
GEGENBAUER Christian (2011) Uptake of ant-derived nitrogen in the myrmecophytic orchid Caularthron bilamellatum (Diplom)
LENOTTI Carina (2011) Diversity and Abundance of primary Hemiepiphytes in different Regions of Costa Rica (Diplom)
2010
HÖBINGER Tamara (2010) Land use, landscape configuration and live fences in an agricultural area in southern Costa Rica: proposals for improving landscape structure and establishment of biological corridor (Diplom)
PREUSCHE Philipp (2010) Zerstörung von Pollen in Hinblick auf forensische Untersuchungen (Diplom)
2009
RAUCH Ariane (2009) Leaf colour patterns, vegetative and sexual reproduction of Episcia lilacina (Gesneriaceae) (Diplom)
LEHRNER Sofia (2009) Experimente zur Präferenz myrmekochorer Diasporen - Der Einfluss der chemischen Zusammensetzung der Elaiosomen auf das Wegtrageverhalten bei Myrmica rubra (Formicidae; Myrmicinae) (Diplom)
2008
BRÖDERBAUER David (2008) Vielfalt und Habitateinnischung von Hemi-Epiphyten unterschiedlicher Lebensräume und Regionen Costa Ricas (Diplom)
PRADER Wolfgang (2008) Tree diversity and vegetation dynamics of a one hectare forest plot census in the lowland rain forests of the Piedras Blancas National Park ("Regenwald der Österreicher"), Costa Rica (Diplom)
TOGLE Susanne (2008) Palynologische Untersuchungen an ausgewählten Pflanzen aus forensischer Sicht
2007
RUBIN Iris (2007) Marcgraviaceae: Morphologie und Reproduktionsbiolgie
THURNER Maria (2007) Does nectar production reduce herbivore pressure on Passiflora species (Passifloraceae) in a tropical rainforest in Costa Rica?
WURZINGER Anna Arabella (2007) Vergleichende ultrastrukturelle Untersuchungen an frischen und rehydrierten Pollenkörnern
2006
SAM Saskia (2006) Pollenmorphologie und Ultrastruktur ausgewählter Allergiepflanzen (Teil 2)
SCHMELZ Verena (2006) Bestäubungsökologie von Tetrathylacium macrophyllum (Flacourtiaceae)
ULRICH Silvia (2006) Pollenmorphologie und Ultrastruktur ausgewählter Arten der Lamianae
2005
DIETHART Bernadette (2005) Pollenmorphologie und Ultrastruktur ausgewählter Allergiepflanzen (Teil 1)
MAYR Eva-Maria (2005) Floral development in Calceolariaceae: Intergeneric variation and comparison with allied groups
SEHR Eva-Maria (2005) Floral development in Tetrachondraceaea and Oleaceae - two families of basal Lamiales
2004
DJUKIC Ika (2004) What triggers the diaspore transports by ants? An experimental study in central european ants and plants
GRUBER Barbara (2004) Ultrastrukturelle Untersuchungen an rehydrierten Pollenkörnern ausgewählter Pflanzen (Teil 1)
HOCHWALLNER Heidrun (2004) Floral morphology, development and pollination of Clusia valerii and Clusia peninsulae (Clusiaceae)
REBERNIG Carolin Anna (2004) Diversity of seed pedestals in Scrophulariaceae and related families of the Lamiales
SCHEMBERA Eva (2004) The Legume Flora of the Golfo Dulce Rain Forests, Costa Rica
2003
BOMBOSI Paula (2003) Pollenmorphologie und Ultrastruktur ausgewählter Heilpflanzen
BURGER Sandra (2003) Vergleichende Bestandsaufnahme von Ameisenpflanzen entlang eines Transekts im tropischen Tieflandsregenwald Costa Ricas
LOOS Claudia (2003) Pollenmorphologie und Ultrastruktur ausgewählter Arten der Pannonischen Flora
2001
AKTUNA Gabriela (2001) Pollenmorphologie der Asparagales
ANGER Elisabeth (2001) Morphologie und Ontogenie der Pollenwand von Arum alpinum
AUER Angelika (2001) Pollenmorphologie der Ranunculanae
FISCHER Renate (2001) Die Symbiose von Piper spp. und Pheidole bicornis: ein Nährstoffkreislauf zwischen Pflanzen und Ameisen
KRÜCKL Brigitte (2001) Untersuchungen an elaiosomen tragenden Diasporen myrmecochorer Pflanzen Mitteleuropas
PAMPERL Susanne (2001) Der Boden als Standortsfaktor eines baumartenreichen Tieflandregenwaldes in Costa Rica
SCHMIDT Markus Rainer (2001) Interactions between Tetrathylacium macrophyllum (Flacourtiaceae) and its live-stem inhabiting ants
WILL Sabine (2001) Diversity of the Rubiaceae Juss. (Coffee or Madder Family) in the Esquinas Rainforest, Costa Rica
2000
LAUTSCH Dominik (2000) Ferns and fern allies of the Bosque Esquinas ("Regenwald der Österreicher"), Costa Rica
1998
OBERSCHNEIDER Wolfgang (1998) Pollenmorphologie der Ranunculanae
RADIVO Paul (1998) Morphologische und ultrastrukturelle Studien zur Pollenentwicklung und zum Narbenbau bei Primula vulgaris (Primulaceae)
ZIMMERMANN Georg (1998) Floristische und strukturelle Differenzierung der Wälder von La Esmeralda (Estado Amazonas, Venezuela)
1997
SAUEREGGER Johanna (1997) Wodurch erfolgt die Determination des Makrokotyledons bei anisokotylen Gesneriaceen?
SELINGER Dagmar (1997) Ökomorphologische Analysen in der Gattung Saxifraga (S. triolactylites, S. granulata und S. bulbifera)
1996
HUBER Werner (1996) Floristische und biogeographische Untersuchungen in einem Tieflandregenwald in der pazifischen Region von Costa Rica
KASTINGER Christoph (1996) Die Bestäubung von Blüten durch Wollschweber (Bombyliidae, Diptera) - unter besonderer Berücksichtigung der Rauhblattgewächse (Boraginaceae)
WEISSENHOFER Anton (1996) Ökologie und Struktur eines Tieflandregenwaldes in der Pazifikregion von Costa Rica
1995
EDLER Birgit (1995) Zur Pollenmorphologie mitteleuropäischer, rezenter Caryophyllaceae