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Vortragsreihe Ökologie und Umweltforschung SS 2019

Donnerstag 12:00-13:30 H6, Geo


Dr. Taina Conrad
Evolutionary Animal Ecology, BayCEER, UBT (Homepage)
Donnerstag, 16.05.2019 12:00-13:30 :

He's giving me good vibrations: of the interesting mating behavior of mason bees

Differences in female preference for certain characteristics of males can be a driving force for population divergence and speciation. We show that in the red mason bee, Osmia bicornis, females choose suitable males based on, among other criteria, their vibrations.

As mason bees are very efficient pollinators and therefore being used increasingly in agriculture it is important to know how different populations interact and how separated they might already be. We investigated whether there is selective mate choice between O. bicornis individuals originating from different regions in Europe and whether the male’s vibrations play a role in this. In order to investigate whether females do indeed use the males’ vibrational signals for selective mate choice we experimentally changed the vibrations in a live male during mating. To achieve this we designed a new and innovative set-up using an inductor and small magnets.

Climate change and the resulting changes in air temperature are known to have a major influence on most animals, especially poikilothermic insects, because they depend on the high enough temperatures to function. Mason bees are some of the first bees to emerge in spring and are therefore subject to high temperature fluctuations. We investigated the impact of different temperatures on their complex mating behavior.

Our results give exciting new insights into the scope of vibrational communication in bees, a group previously thought to mostly rely on chemical signals for communication, and the impact our ever-raising temperatures could have on these important pollinators.



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DatumVortragenderTitel

02.05.2019
Dr. Henning Nottebrock
Plant Ecology, BayCEER, UBT
Revealing eco-evolutionary dynamics with trait-based neighborhood models [Abstract]

09.05.2019
Dr. Annette Freibauer
Bavarian State Research Centre for Agriculture, Institute of Organic Farming, Soil and Resource Management
From research to agro-environmental policy: success stories for biodiversity conservation [Abstract]

16.05.2019
Dr. Taina Conrad
Evolutionary Animal Ecology, BayCEER, UBT
He's giving me good vibrations: of the interesting mating behavior of mason bees [Abstract]

23.05.2019
Prof. Dr. Carlos Valderrama
Biological Sciences, Universidad Icesi, Cali, Colombia
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Bayerische Verwaltung für Ländliche Entwicklung
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27.06.2019
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11.07.2019
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Ecosystem Services Helmholtz-Centre for Environmental Research – UFZ | Friedrich Schiller University Jena I iDiv
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18:00-19:30
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Prof. Dávid Karátson
Department of Physical Geography, Eötvös Loránd University, Budapest
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Terminplanung und Vortragsarchiv BayCEER Kolloquium (seit 2008) sowie Geoökologisches Kolloquium (ab 2001)
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