Joanna Fietz

Learn More
Current discussions in evolutionary ecology and conservation genetics focus on the relative importance of using selective neutral markers or markers of coding genes to identify adaptive and evolutionary relevant processes. Genetic diversity might be particularly important in immune genes (e.g., in genes of the major histocompatibility complex, MHC), which(More)
Mate choice is one of the most important evolutionary mechanisms. Females can improve their fitness by selectively mating with certain males. We studied possible genetic benefits in the obligate pair-living fat-tailed dwarf lemur (Cheirogaleus medius) which maintains life-long pair bonds but has an extremely high rate of extra-pair paternity. Possible(More)
Several recent studies of animals in their natural surroundings found evidence for effects of certain major histocompatibility complex (MHC) immune gene alleles on the parasite load. However, in multi-infected individuals the particular selection pressure exerted by specific parasites has rarely been explored. In this study we took advantage of the(More)
K. Lebl (, C. Bieber and T. Ruf, Research Inst. of Wildlife Ecology, Univ. of Veterinary Medicine Vienna, Savoyenstrasse 1, AT-1160 Vienna, Austria. P. Adamı́k, Dept of Zoology, Faculty of Science, Palacký Univ., Tř. Svobody 26, CZ-771 46 Olomouc, Czech Republic. J. Fietz, Inst. of Experimental Ecology, Univ. of Ulm, Albert(More)
This article documents the addition of 228 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Anser cygnoides, Apodemus flavicollis, Athene noctua, Cercis canadensis, Glis glis, Gubernatrix cristata, Haliotis tuberculata, Helianthus maximiliani, Laricobius nigrinus, Laricobius rubidus,(More)
Parental care should evolve only if fitness benefits exceed fitness costs. In Cheirogaleus medius, a small nocturnal lemur of western Madagascar, we found the peculiar situation of considerable parental care by both sexes, combined with an extremely high rate of extra-pair young (EPY). In this paper, we try to elucidate the costs and benefits of parental(More)
  • 1