View on the Alps

Prof. Dr. Holger Schielzeth

Evolutionary ecologist and head of the Population Ecology Group.
View on the Alps
Image: Holger Schielzeth
Holger Schielzeth, Prof. Dr
Head of the Population Ecology Group
Holger Schielzeth
Phone
+49 3641 9-49410
Fax
+49 3641 9-49402
Room 410
Dornburger Straße 159
07743 Jena
Research interests Show content

I am an evolutionary biologist and passionate naturalist with a particular interest in microevolution. Microevolution is focused on evolutionary change that takes place within populations and that ultimately lead to divergence between populations. I make use of quantitative genetic techniques for studying the genetic architecture of sexually selected traits and of molecular markers for localizing additive genetic variation in the genome ('QTL mapping'). Two particularly intriguing topics are the evolution of sexual ornamentation and of behavioral strategies for successful reproduction. Another special focus lies on the sources of variation in mating preferences, an important component of sexual selection. Other interests include life history evolution, inbreeding depression, condition-dependent trait expression, biostatistics and animal migration.

Current projects Show content

We are working with the club-legged grasshopper (Gomphocerus sibiricus) as a novel model system for studying the evolution of sexually selected traits. The species is remarkable for its sexually dimorphic ornament: males possess swollen front legs ('Popeye arms') that are presented to the females during display. The system is amenable to laboratory and field work, which offers great opportunities for testing results from the lab in the natural environment. Another key advantage is that the species allows studies within populations as well as between populations/subspecies. The main aim of my work is to understand the coevolution and conflict between the sexes using quantitative genetic and genomic tools. By doing so, I am addressing fundamental evolutionary questions such as the evolution of sexual signals and the evolutionary dynamics of indirect genetic effects.

Recent publications Show content

Chakrabarty, A. & Schielzeth, H. (2019). Comparative analysis of the multivariate genetic architecture of morphological traits in three species of Gomphocerine grasshoppers. Heredity doi: 10.1038/s41437-41019-40276-41431

Schweizer, M., Warmuth, V.M., Alaei Kakhki, N., Aliabadian, M., Förschler, M., Shirihai, H., Ewels, P., Gruselius, J., Olsen, R.A., Schielzeth, H., Suh, A. & Burri, R. (2019). Genome-wide evidence supports mitochondrial relationships and pervasive parallel phenotypic evolution in open-habitat chats. Molecular Phylogenetics and Evolution 139: 106568. doi: 10.1016/j.ympev.2019.106568

Eisenhauer, N., Schielzeth, H., Barnes, A.D., Barry, K., Bonn, A., Brose, U., Bruelheide, H., Buchmann, N., Buscot, F., Ebeling, A., Ferlian, O., Freschet, G.T., Giling, D.P., Hättenschwiler, S., Hillebrand, H., Hines, J., Isbell, F., Koller-France, E., König-Ries, B., de Kroon, H., Meyer, S.T., Milcu, A., Müller, J., Nock, C.A., Petermann, J.S., Roscher, C., Scherber, C., Scherer-Lorenzen, M., Schmid, B., Schnitzer, S.A., Schuldt, A., Tscharntke, T., Türke, M., van Dam, N.M., van der Plas, F., Vogel, A., Wagg, C., Wardle, D.A., Weigelt, A., Weisser, W.W., Wirth, C. & Jochum, M. (2019). A multitrophic, eco-evolutionary perspective on biodiversity-ecosystem functioning research. Advances in Ecological Research doi:10.1016/bs.aecr.2019.06.001

Shah, A., Hoffman, J.I. & Schielzeth, H. (2019). Transcriptome assembly for a colour-polymorphic grasshopper (Gomphocerus sibiricus) with a very large genome size. BMC Genomics 20: 370. doi: 10.1186/s12864-019-5756-4

Koshkina, A.I., Koshkin, A.V., Timoshenko, A.Y., Koshkin, A.A. & Schielzeth, H. (2019). White-headed Duck Oxyura leucocephala surveys in Kazakhstan suggest larger and apparently increasing Eastern population of an endangered wetland species. Bird Study 66: 111-120. doi: 10.1080/00063657.00062019.01618239

Harry, I., Höfer, H., Schielzeth, H. & Assmann, T. (2019). Protected habitats of Natura 2000 do not coincide with important diversity hotspots of arthropods in mountain grasslands. Insect Conservation and Diversity 12: 329-338. doi: 10.1111/icad.12349

Chakrabarty, A., van Kronenberg, P., Toliopoulos, N. & Schielzeth, H. (2019). Direct and indirect genetic effects on reproductive investment in a grasshopper. Journal of Evolutionary Biology  32: 331-342. doi: 10.1111/jeb.13417

Dieker, P., Beckmann, L., Teckentrup, J. & Schielzeth, H. (2018). Spatial analyses of two colour polymorphisms in an alpine grasshopper reveal a role of small-scale heterogeneity. Ecology and Evolution 8: 7273-7284. doi: 10.1002/ece1003.4156.

Schielzeth, H., Rios Villamil, A. & Burri, R.(2018). Success and failure in replication of genotype-phenotype associations: How does replication help in understanding the genetic basis of phenotypic variation in outbred populations? Molecular Ecology Resources 4: 739-754. doi: 10.1111/1755-0998.12780.

Köhler, G., Samietz, J. & Schielzeth, H. (2017). Morphological and colour morph clines along an altitudinal gradient in the meadow grasshopper Pseudochorthippus parallelus. PLoS One 12: e0189815. doi:10.1371/journal.pone.0189815

de Villemereuil, P., Morrisey, M., Nakagawa, S. & Schielzeth, H. (2018). Fixed effect variance and the estimation of repeatabilities and heritabilities: Issues and solutions. Journal of Evolutionary Biology doi: 10.1111/jeb.13232.

Nakagawa, S., Johnson, P.C.D. & Schielzeth, H. (2017). The coefficient of determination R² and intra-class correlation coefficient from generalized linear mixed-effects models revised and expanded. Journal of the Royal Society Interface 14: 20170213. doi:10.1098/rsif.2017.0213.

Knief, U., Schielzeth, H., Backström, N., Hemmrich-Stanisak, G., Wittig, M., Franke, A., Griffith, S.C., Ellegren, H., Kempenaers, B. & Forstmeier, W. (2017). Association mapping of morphological traits in wild and captive zebra finches: reliable within but not between populations. Molecular Ecology 26: 1285-1305. doi:10.1111/mec.14009.

Stoffel, M.A., Nakagawa, S. & Schielzeth, H. (2017). rptR: Repeatability estimation and variance decomposition by generalized linear mixed-effects models. Methods in Ecology and Evolution 8: 1639-1644. doi:10.1111/2041-210X.12797

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