Graceful bush-cricket (Pachytrachis gracilis)

Theses at the Population Ecology Group

We offer a variety of projects for Bachelor, Master and PhD theses. Students interested in evolutionary ecology, molecular ecology, or community ecology are welcome to contact any of the team members.
Graceful bush-cricket (Pachytrachis gracilis)
Image: Holger Schielzeth

Looking for a Bachelor or Masters project?

We continously offer a selection of topics for Bachelor or Master projects. The list of past and completed projects below gives you an impression about the range of topcis that we offer. Please do not hesitate to contact us if you are interested and movitated to work in the field of evolutionary, molecular or community ecology.

PhD theses Expand entry

Ongoing PhD projects

Elina Takola
Metaanalysis of individualized niche choice, conformance and construction

Gabe Winter
The evolutionary ecology of predictability in escape behaviour

Mahendra Varma
Uncovering the genetic basis of green-brown in grasshoppers

Maximilian Bröcher
Plant-consumer interactions as cause and consequence of long-term biodiversity ecosystem functioning relationships

Suvratha Jayaprasad
Dosage compensation and sex chromosome evolution in Morabine grasshoppers.

Cosupervision

Dave Lutgen
Genomics of hybridization, speciation, and phenotypic evolution in wheatears
Supervisor: Dr. Reto Burri

Venkatesh Pal Mahadevan (IMPRS)
Deorphanization of chemosensory neurons in D. melanogaster
Supervisor: Dr. Heiko Vogel

Francesca Protti Sanchez (IMPRS)
A bird’s eye view of warning signals
Supervisor: Dr. Hannah Rowland

Devasena Thiagaraja (IMPRS)
Dissecting the neural circuitry underlying oviposition behavior in Drosophila flies
Supervisor: Dr. Silke Sache

Somasundar Arumugam (IMPRS)
Adaptive plasticity in specialists and generalists
Supervisor: Dr. Silke Sache

Zimai Li (IMPRS)
Immune division of labour in ants
Supervisor: Dr. Yuko Ulrich

Completed PhD projects

Adam, E. (2022). Insect olfactory learning in the context of feeding and oviposition. PhD thesis, Friedrich Schiller University Jena.

Walther, C. (2022). Fungal endophytes mediate tree-insect interactions. PhD thesis, Friedrich Schiller University Jena.

Chakrabarty, A. (2020). Genetic constraint, non-independence of traits and consequences of adaptive evolution in acridid grasshoppers. PhD thesis, Friedrich Schiller University Jena. doi: 10.22032/dbt.47981

Shah, A. (2020). The transcriptomic and genomic architecture of acrididae grasshoppers. PhD thesis, Friedrich Schiller University Jena. doi: 10.22032/dbt.47427

Valverde Monge, J.P. (2018). Phenotypic plasticity and condition-dependent trait expression in sexual ornaments and body colour in the alpine grasshopper Gomphocerus sibiricus. PhD thesis, Bielefeld University. https://pub.uni-bielefeld.de/record/2917394

Thesis Advisory Committes

Nhu Tran (Cologne University)
Supervisior Prof. Juliette de Meaux

Jürgen Wierz (MPI Chemical Ecology, Jena)
Supervisor Prof. Martin Kaltenpoth

Lennart Winkler (Technical University Dresden)
Supervisiors Prof. Klaus Reinhardt, Dr. Tim Janicke

Margarita Takou (Cologne University)
Supervisior Prof. Juliette de Meaux
Completed 2020

Ulrich Knief (Max Planck Institute for Ornithology)
Supervisor Dr. Wolfgang Forstmeier
Completed 2016

Master theses Expand entry

Ongoing Master projects

Marcel Müller
Drivers of beetle communities in European grasslands
(Supervision Anne Ebeling)

Nahid Rasouli
The advantage of a long or a short flowering period: Linking flowering phenology, seasonal variation in flower traits and pollinator diversity and density – a contribution to the PhenObs project (Supervision Anne Ebeling)

Lena Wenkebach
Plant diversity effects on decomposition rates in different old meadows
(Supervision Anne Ebeling)

Finja Schaumann
Ecology and behavior of Apis mellifera drones in Sweden
(Supervision Holger Schielzeth)

Qi Wang
Immunie division of labor in ants
(Supervision Yuko Ulrich, Holger Schielzeth)

Thorben Riede
Impacts of deadwood arrangement and deadwood type on ground beetle (Coleoptera: Carabidae) diversity and body traits
(Supervision Holger Schielzeth)

Completed Master projects

Dong, H. (2022). Seasonal plant diversity effects on soil temperature in a long-term experiment. Master thesis, Friedrich Schiller University Jena.

Lehmann, A. (2022). Standardized setup for batch-processed colour morph phenotyping in grasshoppers. Master thesis, Friedrich Schiller University Jena.

Ortega Guatame, J. M. (2022). Differential gene expression in the green-brown polymorphic club-legged grasshopper (Gomphocerus sibiricus). Master thesis, Friedrich Schiller University Jena.

Jang, C. (2021). Reduced representation sequencing for quantification of genetic diversity. Master thesis, Friedrich Schiller University Jena.

Laura Pabon-Viteri (2021). Gene tree variation in the Oenathe hispanica-complex. Master thesis, Friedrich Schiller University Jena.

Deak, L. (2021). Spatiotemporal evolution of a wheatear (Oenanthe) hybrid zone. Master thesis, Friedrich Schiller University Jena.

Klimm, F. (2020). The value of flower strips in agricultural landscapes: Effects on pollination, herbivory and decomposition. Master thesis, Friedrich Schiller University Jena.

Bröcher, M. (2020) The value of flower strips: Effects on predation networks. Master thesis, Friedrich Schiller University Jena.

Achieng Marongo, S.S. (2019) Microhabitat choice in green-brown polymorphic grasshoppers. Master thesis, Friedrich Schiller University Jena.

Franke, K. (2019) Effects of nutrient addition on herbivore performance. Master thesis, Friedrich Schiller University Jena.

Rios Villamil, A. (2018) Genetic mechanism underlying green-brown dimorphism in Gomphocerus sibiricus. Master thesis, Friedrich Schiller University Jena.

Schulze, C. (2017). Assessing a method for measuring seed dispersal along a gradient in land-use intensity. Master thesis, Friedrich Schiller University Jena.

Förster, T. (2017). Plant bottom-up effects on larval and adult beetle communities in a biodiversity experimen. Master thesis, University of Innsbruck. (Supervision Anne Ebeling)

Bellinvia, S. (2016). Inaccuracy or intended chaos? Development and condition-dependence of unpredictability in escape behaviour. Master thesis, Bielefeld University. (Supervision Holger Schielzeth)

Bachelor theses Expand entry

Ongoing Bachelor projects

Thorben Riede
Impacts of deadwood arrangement and deadwood type on ground beetle (Coleoptera: Carabidae) diversity and body traits (Supervision Holger Schielzeth)

Jeremy Eichler
Is Pseudochorthippus parallelus a color changer? (Supervision Holger Schielzeth)

Completed Bachelor projects

Pitz, M. (2021). Erfassung der Flora und Fauna auf dem Golfplatz Münchenroda – Schwerpunkt Insekten. Bachelor thesis, Friedrich Schiller University Jena (Supervision Anne Ebeling)

Hochstetter, J. (2021). Erfassung von Arthropoden im Pennickental zur Untersuchung von Habitatunterschieden und Sukzession in Wäldern. Bachelor thesis, Friedrich Schiller University Jena (Supervision Anne Ebeling)

Wisching, L. (2021). Konditionsabhängigkeit in der Vorhersehbarkeit im Fluchtverhalten von Chorthippus dorsatus. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Holger Schielzeth)

Dehler, J. (2021). Aktuelle und potentielle Verbreitung von Tagfaltern auf den Grumbach-Wiesen im Biosphärenreservat Rhön. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Holger Schielzeth)

Schmidt, L. (2021). Auftreten des Kuckucks Cuculus canorus in Deutschland ermittelt aus bürgerwissenschaftlich erhobenen Daten. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Holger Schielzeth)

Baierl, L.F. (2021). Phänologie unterschiedlicher Farbmorphen von Feldheuschrecken in der Saaleaue bei Jena. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Holger Schielzeth)

Günzl, A.S. (2020). Präferenzen der Umgebungstemperatur von Pseudochorthippus parallelus in Abhängigkeit von der Farbmorphe. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Holger Schielzeth)

Heinze, P. (2018). Homochromie beim farbpolymorphen Gemeinen Grashüpfer (Pseudochorthippus parallelus) (Zetterstedt, 1821). Bachelor thesis, Friedrich Schiller University Jena. (Supervision Petra Dieker)

Liborius, S. (2017). Aufnahme von Bioturbation- Ein methodischer Vergleich. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Anne Ebeling)

Reichelt, E. (2017). Beeinflusst Pflanzendiversität Heuschreckzönosen? Untersuchungen im Jena Experiment. Bachelor thesis, Friedrich Schiller University Jena. (Supervision Anne Ebeling)

van Kronenberg, P. (2016). Direct and indirect genetic effect on oviposition behaviour of Chorthippus biguttulus. Bachelor thesis, Bielefeld University. (Supervision Holger Schielzeth)

Habilitations Expand entry

Ongoing Habilitations

Anne Ebeling
The consequences of plant species loss for aboveground arthropods and related ecosystem processes