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Vortragsreihe Ökologie und Umweltforschung WS 2015/16

Donnerstag 12:00-13:30 H6, Geo


Prof. Dr. Werner Härdtle
Landscape Ecology and Nature Conservation, University of Lüneburg (Homepage)
Donnerstag, 15.10.2015 12:00-13:30 H6, GEO:

Global change impacts on ecosystem functions – the importance of interactive effects

Global change drivers such as climate change and atmospheric nutrient loads (particularly of nitrogen) have multiple effects on the functioning and services of ecosystems, and are (amongst others) the most relevant key drivers of biodiversity loss. Airborne nitrogen loads have tripled since the beginning of industrialisation, and are known to affect ecosystem functions such as primary productivity, nutrient cycling, and plant species competition. Climate change impacts are predicted to become more severe, particularly in the course of this century. The UN Intergovernmental Panel on Climate Change (IPCC 2007) predicts increasing mean annual temperatures, alterations in precipitation patterns and more frequent weather extremes (e.g. severe summer droughts, heat waves and heavy rainfalls). These shifts may influence nutrient cycles, carbon sequestration and ecosystem primary productivity.

Despite recent research on the effects of global change drivers on ecosystem functions, little is known about the interactive effects of co-occurring global change drivers. It is conceivable that ecosystem responses to simultaneous effects of global change drivers are not simply additive, but also interact and thus may be antagonistic or mutually amplifying. The talk will address the impact of interactive effects of climate change and atmospheric nitrogen deposition on ecosystem functions such as plant growth and competition, taking deciduous forest ecosystems (dominated by Fagus sylvatica and Quercus petraea) and heathland ecosystems (dominated by the dwarf shrub Calluna vulgaris) as examples. Based on recent research the talk will highlight some examples that high airborne nitrogen loads will interact with climate change. We hypothesize that nitrogen deposition will increase an ecosystem’s susceptibility to climate shifts (i.e. increasing summer temperatures, drought events). Thus, single factor studies are not always sufficient to predict conceivable impacts of co-occurring global change drivers. Moreover, the talk will explain underlying mechanisms for the ecosystem responses observed.

***

Invited by Anke Jentsch, Disturbance Ecology



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DatumVortragenderTitel
Mittwoch
Room 204, 2. floor/Geo III
10:00-11:30
07.10.2015
Dr. Lucian Staicu
University of Franche-Comté, Department of Science and Technology, Besançon, France
Bacterial metabolism of selenium. Survival or profit? [Abstract]
15.10.2015Prof. Dr. Werner Härdtle
Landscape Ecology and Nature Conservation, University of Lüneburg
Global change impacts on ecosystem functions – the importance of interactive effects [Abstract]
22.10.2015Prof. Declan Kennedy
formerly Chair of Urban Design, Dept. of Architecture, TU Berlin
The New Story Movement and Sustainability [Abstract]
Freitag
H27, GW II
09:00-16:00
23.10.2015
- siehe Aushänge -
Berufungsvorträge zur W3-Professur Sportökologie [Abstract]
Mittwoch
H36, NW III
15:15-16:45
28.10.2015
Dr. Lars Markesteijn
Community Ecology Research Oxford, University of Oxford, UK / Smithsonian Tropical Research Institute, Panama
What determines biological diversity? [Abstract]
29.10.2015Dr. Sergio Calabrese
Università degli Studi di Palermo; Department of Earth and Marine Science (DiSTeM); Italy
Environmental impact of volcanic emissions [Abstract]
12.11.2015Dr. Dylan James Craven
German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
Biodiversity effects on ecosystem stability following climate extremes [Abstract]
19.11.2015Dr. Christoph Schmidt
Geomorphology, BayCEER, University of Bayreuth
Of trapped electrons and their relevance in tracing landscape evolution and human history [Abstract]
26.11.2015Dr. Derek Persoh
Institute for Evolution and Biodiversity of Plants, Ruhr-University of Bochum
Fungal community structure and function - from current knowledge towards predictability [Abstract]
Freitag
H10, NW I
14:15-15:45
27.11.2015
Prof. Dr. Alexandra-Maria Klein
Naturschutz und Landschaftsökologie, Albert-Ludwigs-Universität Freiburg
Functional diversity, complementarity and trait identity in pollination studies [Abstract]
03.12.2015Dr. Harald Pauli
Department of Conservation Biology, Vegetation and Landscape Ecology Institute of Ecology and Conservation Biology University of Vienna
Past and recent changes in European alpine plant diversity: increases, declines, stagnations and accelerations driven by climate change [Abstract]
10.12.2015Dr. Severin Irl
Biogeography, BayCEER, University of Bayreuth
Plant diversity on high-elevation islands – drivers of species richness and endemism [Abstract]
13:00-14:30
14.01.2016
Prof. Dr. Johannes Kollmann
Restoration Ecology, TUM, Freising
Transformation of grasslands in South Brazil - effects of changing land use on biodiversity and ecosystem functions [Abstract]
21.01.2016Dr. Marie Spohn
Soil Ecology, BayCEER, University of Bayreuth
Organic phosphorus mineralization and microbial carbon allocation in soil [Abstract]
28.01.2016
BayCEER Mitgliederversammlung [Abstract]
Freitag
Dr.-Hans-Frisch-Str. 1-3, Raum H7 (Bibliothek)
13:00-14:30
29.01.2016
PD Dr. Reinhard Well, Dr. Lena Rohe
Institut für Agrarklimaschutz, Johann Heinrich von Thünen Institut
Advanced stable isotope tracing and natural abundance methods to unravel N-cycling processes
Terminplanung und Vortragsarchiv BayCEER Kolloquium (seit 2008) sowie Geoökologisches Kolloquium (ab 2001)
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Luftdruck (356m): 978.5 hPa
Lufttemperatur: 1.1 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 7.6 km/h
Wind (Max.): 16.6 km/h
Windrichtung: SO

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Globalstrahlung: -2 W/m²
Lufttemperatur: -1.6 °C
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Sonnenschein: <1 h/d
Wind (Höhe 32m): 0.0 km/h

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