TY - JOUR JF - Acarologia T1 - Ecology and ethology of Ixodes ricinus L. in Switzerland. Second note: comparison of populations in 1972 and 1973 VL - 16 IS - 4 SP - 612 EP - 620 PY - 1974 SN - 0044-586X SN - 2107-7207 PB - Les Amis d'Acarologia AU - Mermod, C. AU - Aeschlimann, A. AU - Graf, J.F. UR - https://www1.montpellier.inrae.fr/CBGP/acarologia/article.php?id=3175 DA - 1975-06-13 KW - Acari KW - Ixodes ricinus KW - population density KW - free living KW - comparative study KW - Switzerland AB - Ecologie et ethologie d Ixodes ricinus L. en Suisse. Deuxieme note: comparaison des populations 1972 et 1973. - The results of sampling free-living and attached ticks during two years are compared. Meteorological factors as temperature and soilmoistening seem important. The number of ticks attached to the rodents appears independent from the number of free-livin g ticks and also from the rodents densitv. Regulation factors for the number;f attached ticks are unknown at the present time. ER -