caa a22 4500 469061162 CHVBK 20180323132857.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF01195787 doi (NATIONALLICENCE)springer-10.1007/BF01195787 Comparison of the attachment rates of males of the ticks Amblyomma hebraeum and A. variegatum to cattle, sheep and rabbits in the absence of aggregation-attachment pheromone [Elektronische Daten] [R. Norval, T. Peter, M. Meltzer] Losses in domestic ruminants caused by heartwater (Cowdria ruminantium infection) in Zimbabwe and Mozambique are greater when the vector isAmblyomma hebraeum than when the vector isA. variegatum. It has been suggested that the epidemiology of the disease may be influenced by the rates at which unfed adults of these two tick species attach to uninfested hosts (i.e. in the absence of the male-produced aggregation-attachment pheromone [AAP]). In this study we confined unfed males ofA. hebraeum andA. variegatum on uninfested cattle, sheep and rabbits and recorded their attachment rates. Males of both species attached more rapidly on cattle than on sheep or rabbits. Males ofA. hebraeum attached more rapidly than males ofA. variegatum on all three host species. The differences in the attachment rates between the two species were much greater on sheep and rabbits than on cattle. The findings suggest that in the absence of AAP, pioneer males of both tick species may attach to cattle, and pioneer males ofA. hebraeum may also attach to sheep. The differences in the attachment rates ofA. hebraeum andA. variegatum provide a possible explanation for observed differences in the epidemiology of heartwater associated with these two vector species. Elsevier Science Publishers B.V. All rights reserved, 1992 Norval R. Department of Infectious Diseases, College of Veterinary Medicine, University of Florida, Building 471, Mowry Road, 32611-0633, Gainesville, FL, USA aut Peter T. Veterinary Research Laboratory, University of Florida/USAID/SADCC Heartwater Research Project, Causeway, Zimbabwe aut Meltzer M. Department of Infectious Diseases, College of Veterinary Medicine, University of Florida, Building 471, Mowry Road, 32611-0633, Gainesville, FL, USA aut Experimental & Applied Acarology Kluwer Academic Publishers 15/3(1992-09-01), 145-152 0168-8162 15:3<145 1992 15 10493 https://doi.org/10.1007/BF01195787 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01195787 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Norval R. Department of Infectious Diseases, College of Veterinary Medicine, University of Florida, Building 471, Mowry Road, 32611-0633, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Peter T. Veterinary Research Laboratory, University of Florida/USAID/SADCC Heartwater Research Project, Causeway, Zimbabwe aut NATIONALLICENCE 700 1- Meltzer M. Department of Infectious Diseases, College of Veterinary Medicine, University of Florida, Building 471, Mowry Road, 32611-0633, Gainesville, FL, USA aut NATIONALLICENCE 773 0- Experimental & Applied Acarology Kluwer Academic Publishers 15/3(1992-09-01), 145-152 0168-8162 15:3<145 1992 15 10493 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer