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Lehrstuhl für Tierökologie und Tropenbiologie

Alice Claßen, Dr.

Postdoc

Telephone: +49 (0)931 31-82793
Fax:             +49 (0)931 31-84352
e-Mail:  alice.classen@uni-wuerzburg.de

ORCID: 0000-0002-7813-8806

Room C044

University of Würzburg
Department of Animal Ecology and Tropical Biology
Biocenter -  Am Hubland

97074 Würzburg, Germany

Research Interests
  • Ecological and evolutionary forces shaping the functional and phylogenetic diversity of insects along elevational gradients
  • macroecology
  • tropical plant-pollinator interaction networks
  • Ecosystem service capacity of pollinators
Projects

ADaptation of Alpine Pollinators in Times of Global Change (ADAPT)

Head of junior research group in the Bavarian climate research network ("Bayerischen Klimaforschungsnetzwerk (bayklif)")

 https://www.bayklif.de/juniorgruppen/adapt/

Alice Claßen, Anne Fabienne Maihoff (PhD), Janika Kerner (PhD), Katharina Kallnik (TA), Irina Schemm (Bachelor student), Elisa Treffehn (Bachelor student)

The research group ADAPT

ADAPT investigates how pollinators respond to climatic changes. We explore this at different levels of biological organization, i.e. from a molecular level up to the communtiy level.

Our main research questions are:

(1) How did pollinator communities in the national park Berchtesgaden change along elevational gradients within the last 10 years?

(2) Do pollinators that strongly respond to climatic changes share certain traits?

(3) How do bumblebee colonies perform in different elevational zones and how do they respond to a climatic changes?

(4) What is the molecular basis of thermal adaptation in Bombus lucorum?

(5) How does land use impact the adaptation capacity of pollinator species?

We are currently developing bumblebee nest boxes that continously track bumblebee activity and colony weight (picture above). We will offer those boxes to bumblebee queens from different elevations in the national park Berchtesgaden. When queens start to establish a colony, we will shift some of those boxes to lower elevations to understand the impact of climatic changes on colony performance. 

 

Kilimanjaro Project SP7Effects of climate und land use change on biodiversity and ecosystem functioning of pollinators and decomposers

Alice ClaßenIngolf Steffan-Dewenter

Curriculum Vitae
  • Seit 2018 Leader of the junior research group "ADaptation of Alpine Pollinators in Times of global change" (ADAPT). University of Würzburg, Germany. 
  • 2015 - 2017 Postdoc at the University of Würzburg, Germany. Project: KiLi Sub Project 7: Effects of climate und land use change on biodiversity and ecosystem functioning of pollinators and decomposers
  • 2015: 6 months full-time partental leave (back in part time position) 
     
  • 2010-2014 PhD student at the University of Würzburg, Germany. Project: KiLi Sub Project 7: Effects of climate und land use change on biodiversity and ecosystem functioning of pollinators and decomposers
     
  • 2009 Diploma thesis in the population genetics group of the Dep. of Entomology, Max-Planck-Institute for Chemical Ecology, Jena (Germany). Subject: “On the trail of evolution: Which factors cause intraspecific variation in the sex pheromone of heliothine moths?”
     
  • 2008 field research on heliothine moths in North Carolina State University, Dept. Entomology, 3107 Gardner Hall, Raleigh, NC.
     
  • 2007 voluntary work in the cloud and rain forest of South America, Jatun Sacha Foundation, Ecuador.
     
  • 2004-09 Studies in Biology (majored in ecology) at the Free University of Berlin, Germany.
Publications

Peters MK, Hemp A, Appelhans T, Becker JN, Behler C, Classen A, Cornejo NS, Detsch F, Ensslin A, Ferger SW, Frederiksen SB, Gebert F, Gerschlauer F, Gütlein A, Haas M, Helbig-Bonitz M, Hemp C, Kindeketa WJ, Kühnel A, Mayr A, Mwangomo E, Ngereza C, Njovu HN, Otte I, Pabst H, Renner M, Röder J, Rutten G, Schellenberger Costa D, Vollstädt MGR, Eardley CD, Keller A, Peters RS, Ssymank A, Kakengi V, Zhang J, Bogner C, Böhning-Gaese K, Brandl R, Hertel D, Huwe B, Kiese R, Kleyer M, Kuzyakov Y, Nauss T, Schleuning M, Tschapka M, Fischer M, Steffan-Dewenter I (2019) Climate-land-use interactions shape tropical mountain biodiversity and ecosystem functions. Nature, DOI: 10.1038/s41586-019-1048-z.

Maas B, Heath S, Grass I, Cassano C, Classen A, Faria D, Gras P, Williams-Guillén K, Johnson M, Karp D, Linden V, Martínez Salinas MA, Schmack J, Kross S (early online). Experimental field exclosure of birds and bats in agricultural systems - methodological insights, potential improvements, and cost-benefit trade-offs. Basic and Applied Ecology. doi: 10.1016/j.baae.2018.12.002

Nojima S, Classen A, Groot A, Schal C (2018) Qualitative and quantitative analysis of chemicals emitted from the pheromone gland of individual Heliothis subflexa females. PLOS ONE 13(8): e0202035. OPEN ACCESS

Albrecht J, Classen A, Vollstädt MGR, Mayr A, Mollel NP, Schellenberger Costa D, Dulle HI, Fischer M, Hemp A, Howell KM, Kleyer M, Nauss T, Peters MK, Tschapka M, Steffan-Dewenter I, Böhning-Gaese K, Schleuning M (2018) Plant and animal functional diversity drive mutualistic network assembly across an elevational gradient. Nature Communications 9: 3177. OPEN ACCESS

Groot A, Nojima S, Heath JJ, Ammagarahalli B, van Wijk M, Classen A, Santangelo RG, Lopez J, Schal C (2018) Alcohol contributes to attraction of Heliothis (=Chloridea) virescens males to females. Journal of Chemical Ecology 44: 621-630. doi: 10.1007/s10886-018-0995-4

Schellenberger Costa D, Classen A, Ferger SW, Helbig-Bonitz M, Peters MK, Böhning-Gaese K, Steffan-Dewenter I, Kleyer M (2017). Relationships between abiotic environment, plant functional traits, and animal body size at Mount Kilimanjaro, Tanzania. PLOS ONE 12 (3): e0174157. OPEN ACCESS

Classen A, Steffan-Dewenter I, Kindeketa WJ, Peters MK (2017). Integrating intraspecific variation in community ecology unifies contrasting theories on body size shifts along climatic gradients. Functional Ecology  31 (3): 768-777. doi: 10.1111/1365-2435.12786

Peters MK, Hemp A, Appelhans T, Behler C, Classen A, Detsch F, Ensslin A, Ferger SW, Frederiksen SB, Gebert F, Haas M, Helbig-Bonitz M, Hemp C, Kindeketa WJ, Mwangomo E, Ngereza C, Otte I, Röder J, Rutten G, Schellenberger Costa D, Tardanico J, Zancolli G, Deckert J, Eardley CD, Peters RS, Rödel M-O, Schleuning M, Ssymank A, Kakengi V, Zhang J, Böhning-Gaese K, Brandl R, Kalko EKV, Kleyer M, Nauss T, Tschapka M, Fischer M, Steffan-Dewenter I (2016). Predictors of elevational biodiversity gradients change from single taxa to the multi-taxa community level. Nature Communications 7: 13736. OPEN ACCESS.

Classen A, Peters MK, Kindeketa WJ, Appelhans T, Eardley C, Gikungu MW, Hemp A, Nauss T, and Steffan-Dewenter I (2015) Temperature versus resource constraints: which factors determine bee diversity on Mt. Kilimanjaro, Tanzania? Global Ecology and Biogeography 24(6): 642-652. doi: 10.1111/geb.12286 

Classen A, Peters MK, Ferger SW, Helbig-Bonitz M, Schmack JM, Maassen G, Schleuning M, Kalko EKV, Böhning-Gaese K, and Steffan-Dewenter I (2014). Complementary ecosystem services provided by pest predators and pollinators increase quanitity and quality of coffee yields. Proceedings of the Royal Society B 281: 20133148. doi: 10.1098/rspb.2013.3148

Groot AT, Schöfl G, Inglis O,Donnerhacke S, Classen A, Schmalz A, Santangelo RG, Emerson J, Gould F, Schal C, and Heckel DG (2014). Within-population variability in a moth sex phermone blend: genetic basis and behavioural consequences. Proceedings of the Royal Society B 281: 20133054.

Groot AT,  Classen A, Inglis O, Blanco CA,  Lopez J Jr, Vargas AT, Schal C, Heckel DG and Schoefl G (2011). Genetic differentiation across North America in the generalist moth Heliothis virescens and the specialist H. subflexaMolecular Ecology 20: 2676-2692.

Groot AT, Classen A, Staudacher H, Schal C, and Heckel DG (2010). Phenotypic plasticity in sexual communication signal of a noctuid moth. Journal of Evolutionary Biology 23: 2731-2738.

Groot AT, Blanco CA, Classen A, Inglis O, Santangelo RG, Lopez J Jr, Heckel DG and Schal C (2010). Variation in Sexual Communication of the Tobacco Budworm, Heliothis virescens. Southwestern Entomologist 35: 367-372.