| 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 |
| occurrence of dermacentor variabilis (acari: ixodidae) around a porcupine (rodentia: erthethizontidae) carcass at camp ripley, minnesota. | in may 2000, a dead porcupine (erethizon dorsatum culiver) was found on an infrequently traveled dirt road at camp ripley, mn. the presence of late instar calliphoridae suggested that the porcupine died within the past 4 to 7 d. adult carrion (silphidae) and rove (staphylinidae) beetles were observed under the carcass. in june, a large number of adult american dog ticks, dermacentor variabilis (say), were observed questing on the porcupine and the surrounding grass. six zones were established ar ... | 2003 | 12597663 |
| arthropod and helminth parasites from the plains pocket gopher, geomys bursarius bursarius from the hosts' northern boundary range in minnesota. | as part of a continuing and more general study of the diversity of parasites from subterranean mammals in central north america, individuals of the plains pocket gopher, geomys bursarius bursarius, were collected from 7 localities in northwestern minnesota from september 1991 through october 1996. arthropods collected included the fleas, opisocrostis bruneri (4 of 124, 3.2%), foxella ignota ignota (85 of 124, 68.5%); the chewing louse, geomydoecus geomydis geomydis from 98 of 124 (79%), and larv ... | 2000 | 10701580 |
| prevalence of the lyme disease spirochete, borrelia burgdorferi, in deer ticks (ixodes dammini) collected from white-tailed deer (odocoileus virginianus) in saint croix state park, minnesota. | during a special two-day hunt (11, 12 november 1989) in saint croix state park, minnesota (usa), one side of the neck for each of 146 white-tailed deer (odocoileus virginianus) was examined for ticks. of the 5,442 ticks collected, 90% (4,893) were the winter tick, dermacentor albipictus, and 10% (549) were the deer tick, ixodes dammini, the primary vector of the causative agent of lyme disease, borrelia burgdorferi. adult males had the greatest frequency of infestation of either d. albipictus (1 ... | 1993 | 8445791 |