Anke Jentsch: Angebotene Abschlussarbeiten
Angebotene Bachelorarbeiten | |
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European gradients of resilience in the face of climate extremes SIGNAL is a joint experimental research activity across eight European countries combining biodiversity experiments, climate change research, and invasion research. Extreme weather events and the presence of invasive species can act as pressures threatening biodiversity, resilience and ecosystem services of semi-natural grasslands and can suddenly drive them beyond thresholds of system integrity. In a field experiment, stability of natural grassland communities (including invasives or not) against drought will be assessed and the influence of mowing height will be tested. Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
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Auswirkungen von Wärmepulsen im Winter auf das Wurzelwachstum von Gräsern, Kräutern und Zwergsträuchern mehr Ansprechpartner: Jürgen Kreyling, Jan Schürings, Anke Jentsch | |
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Performance of invasive species in natural grasslands under drought and different mowing heights Rationale: The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights. The goal is to assess the performance of the invaders depending on drought and mowing regime by assessing multiple parameters (survival, growth, fecundity). Methods: Assessment of invader performance, data analysis time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
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Freilandexperiment zum Klimawandel (EVENT II): Vegetationsdynamik und Wetterextreme - der Einfluss von Niederschlagsvariabilität, Jahreszeitlicher Erwärmung und Landnutzung mehr Ansprechpartner: Anke Jentsch, Jürgen Kreyling, Carl Beierkuhnlein | |
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Soil respiration, decomposition and soil faunal activity under drought and invasive pressure The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights and extreme drought. Soil parameters to determine carbon and nutrient cycling and activity will be assessed before, during and after drought. Methods: Assessment of soil respiration, decomposition and other soil parameters time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
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Beitrag der Bodensamenbank zur Resilienz von Ökosystemen unter Klimawandel mehr Ansprechpartner: Camilla Wellstein, Anke Jentsch | |
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Effects of drought, invader presence and mowing regime on natural grassland productivity and resilience Rationale: The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights and extreme drought. The goal of this work will be to assess the productivity of the natural grassland in response to these drivers of environmental change. Further, methods to assess resilience should be developed and applied. Methods: Quantification of biomass production time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
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Haben Pflanzen ein Stressgedächtnis? mehr Ansprechpartner: Anke Jentsch, Julia Walter | |
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Characterisation of European grasslands using remote sensing data Rationale: The SIGNAL experiment will comprise natural grassland communities throughout a European gradient. The goal of the analysis will be to characterise locations, status, and composition of these grassland communties and their climatic drivers. Methods: Remote sensing, GIS time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
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Ökologischer Funktionsverlust bei letaler Dürre mehr Ansprechpartner: Anke Jentsch, Jürgen Kreyling, Carl Beierkuhnlein | |
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What constrains the distribution of the invasive Verbascum thapsus from different provenances / continents? In a pot experiment, V. thapsus from worldwide provenances will be raised and subjected to different climate scenarios such as drought and late frost. The objective of the study is to assess climatic filters constraining the distribution of this species in the invasive range. Methods: Assessment of various plant performance parameters time: anytime during summer 2013 Ansprechpartner: Anke Jentsch | |
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Blühphänologische Reaktion von Grünlandbeständen auf Klimaerwärmung mehr Ansprechpartner: Anke Jentsch, Roman Hein | |
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Ökologischer Funktionsverlust bei letaler Dürre Im Experiment EVENT 1 wurde im Sommer 2011 die Reaktion verschiedener ökologischer Parameter auf letale Dürre untersucht. In Abschlussarbeiten sollen hoch aufgelöste Zeitreihen des Funktionsverlustes zu einzelnen Parametern analysiert werden. Dabei geht es vor allem um den Gehalt an Stressenzymen und spezifischen Proteinen. Die Daten sind bereits vorhanden. Methodik: vorhandenen Datensatz auswerten Zeit: jederzeit Ansprechpartner: Jürgen Kreyling, Anke Jentsch | |
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>> Eigene Themenvorschläge im Rahmen der Forschungsaktivitäten der Störungsökologie sind herzlich willkommen! << Ansprechpartner: Anke Jentsch, Carl Beierkuhnlein, Jürgen Kreyling | |
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Transgenerationale Effekte nach Extrem-Wetterereignissen mehr Ansprechpartner: Anke Jentsch, David Harter, Julia Walter | |
Angebotene Masterarbeiten | |
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Ökologischer Funktionsverlust bei letaler Dürre Im Experiment EVENT 1 wurde im Sommer 2011 die Reaktion verschiedener ökologischer Parameter auf letale Dürre untersucht. In Abschlussarbeiten sollen hoch aufgelöste Zeitreihen des Funktionsverlustes zu einzelnen Parametern analysiert werden. Dabei geht es vor allem um den Gehalt an Stressenzymen und spezifischen Proteinen. Die Daten sind bereits vorhanden. Methodik: vorhandenen Datensatz auswerten Zeit: jederzeit Ansprechpartner: Jürgen Kreyling, Anke Jentsch | |
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Auswirkungen von Wärmepulsen im Winter auf das Wurzelwachstum von Gräsern, Kräutern und Zwergsträuchern mehr Ansprechpartner: Jürgen Kreyling, Jan Schürings, Anke Jentsch | |
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Ökologischer Funktionsverlust bei letaler Dürre mehr Ansprechpartner: Anke Jentsch, Jürgen Kreyling, Carl Beierkuhnlein | |
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Beitrag der Bodensamenbank zur Resilienz von Ökosystemen unter Klimawandel mehr Ansprechpartner: Camilla Wellstein, Anke Jentsch | |
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Transgenerationale Effekte nach Extrem-Wetterereignissen mehr Ansprechpartner: Anke Jentsch, David Harter, Julia Walter | |
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Freilandexperiment zum Klimawandel (EVENT II): Vegetationsdynamik und Wetterextreme - der Einfluss von Niederschlagsvariabilität, Jahreszeitlicher Erwärmung und Landnutzung mehr Ansprechpartner: Anke Jentsch, Jürgen Kreyling, Carl Beierkuhnlein | |
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Haben Pflanzen ein Stressgedächtnis? mehr Ansprechpartner: Anke Jentsch, Julia Walter | |
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Blühphänologische Reaktion von Grünlandbeständen auf Klimaerwärmung mehr Ansprechpartner: Anke Jentsch, Roman Hein | |
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European gradients of resilience in the face of climate extremes SIGNAL is a joint experimental research activity across eight European countries combining biodiversity experiments, climate change research, and invasion research. Extreme weather events and the presence of invasive species can act as pressures threatening biodiversity, resilience and ecosystem services of semi-natural grasslands and can suddenly drive them beyond thresholds of system integrity. In a field experiment, stability of natural grassland communities (including invasives or not) against drought will be assessed and the influence of mowing height will be tested. Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
|
Performance of invasive species in natural grasslands under drought and different mowing heights Rationale: The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights. The goal is to assess the performance of the invaders depending on drought and mowing regime by assessing multiple parameters (survival, growth, fecundity). Methods: Assessment of invader performance, data analysis time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
|
Soil respiration, decomposition and soil faunal activity under drought and invasive pressure The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights and extreme drought. Soil parameters to determine carbon and nutrient cycling and activity will be assessed before, during and after drought. Methods: Assessment of soil respiration, decomposition and other soil parameters time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
|
Effects of drought, invader presence and mowing regime on natural grassland productivity and resilience Rationale: The SIGNAL field site within the ÖBG will comprise natural grassland communities including legume- and non-legume invaders or not, and will be exposed to different mowing heights and extreme drought. The goal of this work will be to assess the productivity of the natural grassland in response to these drivers of environmental change. Further, methods to assess resilience should be developed and applied. Methods: Quantification of biomass production time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
|
Characterisation of European grasslands using remote sensing data Rationale: The SIGNAL experiment will comprise natural grassland communities throughout a European gradient. The goal of the analysis will be to characterise locations, status, and composition of these grassland communties and their climatic drivers. Methods: Remote sensing, GIS time: anytime during summer 2013 Ansprechpartner: Anke Jentsch, Jürgen Kreyling | |
|
What constrains the distribution of the invasive Verbascum thapsus from different provenances / continents? In a pot experiment, V. thapsus from worldwide provenances will be raised and subjected to different climate scenarios such as drought and late frost. The objective of the study is to assess climatic filters constraining the distribution of this species in the invasive range. Methods: Assessment of various plant performance parameters time: anytime during summer 2013 Ansprechpartner: Anke Jentsch | |