caa a22 4500 445343575 CHVBK 20180317142821.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00436-010-2065-x doi (NATIONALLICENCE)springer-10.1007/s00436-010-2065-x Factors affecting patterns of tick parasitism on forest rodents in tick-borne encephalitis risk areas, Germany [Elektronische Daten] [Christian Kiffner, Torsten Vor, Peter Hagedorn, Matthias Niedrig, Ferdinand Rühe] Identifying factors affecting individual vector burdens is essential for understanding infectious disease systems. Drawing upon data of a rodent monitoring programme conducted in nine different forest patches in southern Hesse, Germany, we developed models which predict tick (Ixodes spp. and Dermacentor spp.) burdens on two rodent species Apodemus flavicollis and Myodes glareolus. Models for the two rodent species were broadly similar but differed in some aspects. Patterns of Ixodes spp. burdens were influenced by extrinsic factors such as season, unexplained spatial variation (both species), relative humidity and vegetation cover (A. flavicollis). We found support for the ‘body mass' (tick burdens increase with body mass/age) and for the ‘dilution' hypothesis (tick burdens decline with increasing rodent densities) and little support for the ‘sex-bias' hypothesis (both species). Surprisingly, roe deer densities were not correlated with larvae counts on rodents. Factors influencing the mean burden did not significantly explain the observed dispersion of tick counts. Co-feeding aggregations, which are essential for tick-borne disease transmission, were mainly found in A. flavicollis of high body mass trapped in areas with fast increase in spring temperatures. Locally, Dermacentor spp. appears to be an important parasite on A. flavicollis and M. glareolus. Dermacentor spp. was rather confined to areas with higher average temperatures during the vegetation period. Nymphs of Dermacentor spp. mainly fed on M. glareolus and were seldom found on A. flavicollis. Whereas Ixodes spp. is the dominant tick genus in woodlands of our study area, the distribution and epidemiological role of Dermacentor spp. should be monitored closely. The Author(s), 2010 Kiffner Christian Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut Vor Torsten Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut Hagedorn Peter Centre for Biological Safety, Robert Koch-Institut, Nordufer 20, 13353, Berlin, Germany aut Niedrig Matthias Centre for Biological Safety, Robert Koch-Institut, Nordufer 20, 13353, Berlin, Germany aut Rühe Ferdinand Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut Parasitology Research Springer-Verlag 108/2(2011-02-01), 323-335 0932-0113 108:2<323 2011 108 436 https://doi.org/10.1007/s00436-010-2065-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00436-010-2065-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kiffner Christian Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut NATIONALLICENCE 700 1- Vor Torsten Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut NATIONALLICENCE 700 1- Hagedorn Peter Centre for Biological Safety, Robert Koch-Institut, Nordufer 20, 13353, Berlin, Germany aut NATIONALLICENCE 700 1- Niedrig Matthias Centre for Biological Safety, Robert Koch-Institut, Nordufer 20, 13353, Berlin, Germany aut NATIONALLICENCE 700 1- Rühe Ferdinand Department of Forest Zoology and Forest Conservation incl. Wildlife Biology and Game Management, Büsgen-Institute, Georg-August-University Göttingen, Büsgenweg 3, 37077, Göttingen, Germany aut NATIONALLICENCE 773 0- Parasitology Research Springer-Verlag 108/2(2011-02-01), 323-335 0932-0113 108:2<323 2011 108 436 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer