24 live beavers were examined during the period from December 1986 to October 1987 at Popielno. 12 species of Acari (10 Schizocarpus, 2 Ixodes) and Platypsyllus castoris (Insecta, Coleoptera). Schizocarpus numerosus was the most frequent (21 beavers were infested), then S. brachyurus - 17 beavers infested. The rarest were S. capitis, which were noted only in two beavers.
The motive activity of L. cervi is highest in the early and late morning, and in the evening, and correlated with the motoric activity of the host (roe-deer).
Studies were conducted in north-east Poland during the period from October 1987 to February 1993 - 570 cervids were studied (roe-deer, red deer, sika deer, fallow deer and moose). Thirteen species of ectoparasites were noted, the most frequent included Damalinia meyeri, Lipoptena cervi, Dermacentor reticulatus, Ixodes ricinus, and Chorioptes texanus, found only for the second time in Poland. The moderate number of arthropods noted included Solenopotes capreoli, S. burmeisteri and also Demodex kutzeri. The greatest infestation in the majority of hosts was noted on the bulls, that on females and young being lower but similar.
In yers 1996-2000 fallow deer were examined in the area of north-western part of Poland (Pomeranian Lakeland). 295 fallow deer were examined and Lipoptena cervi was found on 220 of them; the prevalence was 75%, intensity ca 9.9 individuals.
A total of 356 Dama dama individuals (about 20% of the population inhabiting Pomerania, Poland) were examined over a period of 6 years (1996-2001). The fallow deer were found to act as hosts for 8 parasitic arthropod species belonging to 4 orders: Diptera (Lipoptena cervi), Mallophaga (Damalinia meyeri), Anoplura (Solenopotes burmeisteri) and Acari (Ixodes ricinus, Dermacentor reticulatus, Sarcoptes scabiei, Chorioptes texanus, Demodex kutzeri). The extent of infestation was species-dependent; the highest prevalence (76%) was typical of L. cervi, followed by I. ricinus (29%) and D. meyeri (7%). On the other hand, the extent of infestation of small epidermal Acari was generally low, e.g., the prevalence of C. texanus did not exceed 1%. Despite the relatively high prevalences, the infestations were symptomless.
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