[Occurence of the common tick Ixodes ricinus L. in environments of various degree and character of anthropogenic impact].
METHODS
The study of the occurence and relative numbers of the common tick Ixodes ricinus in environments of various degree and character of anthropogenic impact was conducted in 3 forest complexes situated in the Lubelskie voivodeship: the Gułowskie Forests (district of Luków), the Kozłowieckie Forests (district of Lubartów) and the Dabrowa Forest (within the municipal boundaries of Lublin). The adopted method was flagging in the period of peak activity of ticks in the springs of 2005-2006. 7 environments were distinguished, in which a total of 48 censuses were conducted. Relative density of ticks was assessed based on the number of specimens caught by one person in 60 minutes.


RESULTS
In total, 2081 specimens were caught; on average 43.4 in a single sample. For comparisons of the size of the population of the parasites in the distinguished environments, the so-called "risk factor" (Z) was formulated. It was calculated by assigning the value of 1.00 to the average number of ticks caught during one census. Ticks were found in all the investigated environments. Their highest average numbers (Z = 1.91) were found in forest tracks, the lowest ones--along the shoreline of water reservoirs. A high density (Z = 1.00) was recorded in an environment of homogenous vegetation structure, defined as the "forest interior".
Biaduń
Waldemar
W
Katedra i Zakład Biologii z Genetyka, Akademia Medyczna, ul. Staszica 4, 20-081 Lublin. wbiadun@op.pl
Krasnodebski
Sławomir
S
D000818:Animals; D001096:Arachnid Vectors; D004777:Environment; D018884:Ixodes; D009758:Nymph; D011044:Poland; D011156:Population Density; D015995:Prevalence; D012307:Risk Factors; D012424:Rural Population / Q000706:statistics & numerical data; D012621:Seasons; D013984:Tick Infestations / Q000453:epidemiology*; D014197:Trees / Q000469:parasitology*; D014505:Urban Population / Q000706:statistics & numerical data