| ecto- and endoparasites of the black bear in northern wisconsin. | parasites collected from free-ranging black bears, ursus americanus, in northern wisconsin included dermacentor variabilis, d. albipictus, ixodes scapularis, demodex sp., trichodectes pinguis euarctidos, baylisascaris transfuga and dirofilaria ursi. mange, possibly caused by the demodex sp., also was observed. dental caries were common and periodontal disease was observed in one animal. | 1978 | 633522 |
| parasites of black bears of the lake superior region. | parasites collected from free-ranging black bears, ursus americanus pallas, 1780, from northeastern minnesota or northern michigan include the dog tick, dermacentor variabilis (say, 1821), the winter tick, d. albipictus (packard, 1869), a louse, trichodectes pinguis euarctidoes hopkins, 1954, an ascarid worm, baylisascaris transfuga (rudolphi, 1819), a filarial worm, dirofilaria ursi yamaguti, 1941, taeniid tapeworms, and unidentified fleas. the broad fish tapeworm, diphyllobothrium latum (linna ... | 1975 | 1142551 |