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Vortragsreihe Ökologie und Umweltforschung WS 2015/16

Donnerstag 12:00-13:30 H6, Geo


Dr. Sergio Calabrese
Università degli Studi di Palermo; Department of Earth and Marine Science (DiSTeM); Italy (Homepage)
Donnerstag, 29.10.2015 12:00-13:30 H6, GEO:

Environmental impact of volcanic emissions

Volcanic emissions are considered one of the major natural sources of several trace metals (e.g. As, Cd, Cu, Pb, and Zn) to the atmosphere, and the geochemical cycles of these elements have to be considered strongly influenced by volcanic input. Explosive eruptions and volcanic passive degassing inject large quantities of gas and particles into the atmosphere that are ultimately deposited to the Earth’s surface through wet or dry deposition processes, affecting the hydrosphere and the biosphere. Volcanic emissions (including trace metals) can be taken up by plants and soils, inducing both harmful and beneficial effects. Volcanic emissions may have important consequences also on human health. Exposure to high atmospheric concentrations of potentially harmful elements in volcanic areas is a problem that should not be neglected because many millions of people visit volcanic areas each year and many of them get close to the volcanic vents, where the emissions can be highly concentrated. The health of many more people, living on the flanks of the volcanoes, may also adversely be affected by lower chronic exposition to the same elements. The accurate estimation of the global volcanic emissions of volatile trace metals into the atmosphere is still affected by a high level of uncertainty. The latter depends on the large variability in the emission of the different volcanoes and on their changing stage of activity. Moreover, only few of the potential sources in the world have been directly measured. From a literature review, we have recognized the scarcity of investigation on trace element deposition in the surroundings of active volcanoes. Although active volcanoes are widely distributed in the world only Hawaiian, Japanese, Italian and a few central American volcanoes have been studied. The talk will be focused on the main sampling techniques in volcanic environment, including different matrices such as gas and particulate, atmospheric deposition, vegetation (active and passive biomonitoring). Examples of the obtained resuts and possible applications will be shown.

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Invited by Britta Planer-Friedrich



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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
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15.10.2015Prof. Dr. Werner Härdtle
Landscape Ecology and Nature Conservation, University of Lüneburg
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22.10.2015Prof. Declan Kennedy
formerly Chair of Urban Design, Dept. of Architecture, TU Berlin
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H27, GW II
09:00-16:00
23.10.2015
- siehe Aushänge -
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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
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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
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Restoration Ecology, TUM, Freising
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Soil Ecology, BayCEER, University of Bayreuth
Organic phosphorus mineralization and microbial carbon allocation in soil [Abstract]
28.01.2016
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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
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