Inventory of ticks on dogs in rural areas of the northeast of Algeria and itsrelationship with influences some ecological and climatic parameters

Research was undertaken to establish an inventory of ticks on dogs in the north east of Algeria. In the first aspect of study,a survey aims to identify of Ixodidae infesting the dogs in bioclimatic different areas and to determine the risk factors. Thiswork took place between 2006 and 2012. The results of the collections show that all the dogs, which were the subject of thissurvey, are infested by ticks during the period between March and August in different areas of the northeastern of Algeria.Rhipicephalus sanguineus is the predominant tick species. It has been observed with a frequency of 88 % in the area of El-Tarf, 100 % in Souk-Ahras, 95 % in the Tébessa region and 72 % in Guelma, (average of 89 %). Climatic conditions seem toplay the essential role for this distribution of ticks. The other tick species collected are: Ixodes ricinus, Rhipicephalusturanicus, Haemaphysalis punctata and Hyalomma anatolicum. The latter were present with very low a proportion, whichgives them the appearance of accidental parasitism in dogs. Rhipicephalus sanguineus has significant infestation intensity inspring and summer, peaking in August in the semi-arid region (Souk-Ahras). In humid regions (El-Tarf), the peak ofinfestation recorded by this arthropod is in April. The second aspect of study of the seasonal dynamics of Rhipicephalussanguineus shows the seasonal nature (Spring-Summer) of the brown tick of dog.