Dr. Jaap van Schaik

Applied Zoology and Nature Conservation

Loitzer Str. 26
17489 Greifswald

Tel.: +49 (0)3834 420-4068
Fax: +49 (0)3834 420-4252


Research Interests

Host sociality and host-parasite evolutionary dynamics

On an evolutionary scale, the influence of host sociality on parasite genetic structure and the reciprocal selection pressure imposed by each species on the other can strongly influence the evolutionary outcome of host-parasite interactions. I use a comparative framework of permanent ectoparasites (wing mites, bat flies) and several closely related European bat species to explore the effects of host social system on parasite infection dynamics and population genetic structure.

Bat behavior and conservation

Additionally, I am also broadly interested in bat movement ecology and conservation, using a combination of behavioral observations and genetic approaches to gain a better understanding of bat life history in order to inform conservation efforts.

Relevant Publications

  • van Schaik, J., Dekeukeleire, D., Gazaryan, S., Natradze, I., & Kerth, G. (2018): Comparative phylogeography of a vulnerable bat and its ectoparasite reveals dispersal of a non-mobile parasite among distinct evolutionarily significant units of the host. Conservation Genetics 19, 481-494.
  • Stumpf, M., Meier, F., Grosche, L., Halczok, T. K., Van Schaik, J., & Kerth, G. (2017): How do young bats find suitable swarming and hibernation sites? Assessing the plausibility of the maternal guidance hypothesis using genetic maternity assignment for two European bat species. Acta Chiropterologica 19, 319-327.
  • Van Schaik, J. & Kerth, G. (2016): Host social organization and mating system shape parasite transmission opportunities in three European bat species Parasitology Research. doi:10.1007/s00436-016-5323-8.

  • Van Schaik J., Janssen R., Bosch T., Haarsma A.-J., Dekker J.J.A. & Kranstauber B. (2015): Bats swarm where they hibernate: compositional similarity between autumn swarming and winter hibernation assemblages at five underground sites. PloS one 10.7
  • Van Schaik J., Dekeukeleire D. & Kerth G. (2015): Host and parasite life history interplay to yield divergent population genetic structures in two ectoparasites living on the same bat species. Molecular Ecology DOI: 10.1111/mec.13171.
  • Van Schaik J., Kerth G., Bruyndonckx N. & Christe P. (2014): The effect of host social system on parasite population genetic structure: comparative population genetics of two ectoparasitic mites and their bat hosts. BMC evolutionary biology 14, 18.
  • Dekeukeleire D., Janssen R. & van Schaik J. (2013): Frequent melanism in Geoffroy’s bat (Myotis emarginatus, Geoffroy 1806). Hystrix, the Italian Journal of Mammalogy 24, 197-198.
  • Kerth G., Fleischmann D., van Schaik J. & Melber M. (2013): From behaviour and genetics to nature conservation: 20 years research on Bechstein’s bats. In: Populationsökologie und Habitatansprüche der Bechsteinfledermaus Myotis bechsteinii (ed. Dietz M), pp. 35-50. Zarbock GmbH & Co. KG, Frankfurt.
  • Kerth G. & van Schaik J. (2012): Causes and consequences of living in closed societies: lessons from a long-term socio-genetic study on Bechstein's bats. Molecular Ecology 21, 633-646.
  • Van Schaik J., Bruyndonckx N., Kerth G. & Christe P. (2011): Isolation and characterisation of microsatellite loci for two species of Spinturnicid bat wing mites (Spinturnix myoti and Spinturnix bechsteini). Acarologia 51, 127-131.
  • Coyer J.A., Hoarau G., van Schaik J., Luijckx P. & Olsen J.L. (2011): Trans‐Pacific and trans‐Arctic pathways of the intertidal macroalga Fucus distichus L. reveal multiple glacial refugia and colonizations from the North Pacific to the North Atlantic. Journal of Biogeography 38, 756-771.