Publications

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locations of moose in northwestern canada with hair loss probably caused by the winter tick, dermacentor albipictus (acari: ixodidae).five hundred two trappers representing 389 registered traplines in northern alberta, northern british columbia, northwest territories and yukon territory (canada) responded to a questionnaire on the occurrence of hair loss and the winter tick (dermacentor albipictus) on moose (alces alces). results suggested that winter ticks may occur as far as 62 degrees n. several sightings of moose with presumed tick-induced hair loss near kluane lake, yukon territory, suggest the possibility of introduction ...19892761020
origin of dermacentor albipictus (acari: ixodidae) on elk in the yukon, canada.winter ticks (dermacentor albipictus) on elk (cervus elaphus canadensis) have recently increased in numbers in the yukon, canada, potentially posing risks to other indigenous host species in the region. to evaluate the regional source of winter ticks in the yukon, we sequenced one nuclear (its-2) and two mitochondrial (16srrna and coi) genes, and genotyped 14 microsatellite loci from 483 winter tick specimens collected across north america. we analyzed genetic variation across the geographic and ...201424779459
contaminant residue levels in arctic wolves (canis lupus) from the yukon territory, canada.kidney, liver and bone samples were taken from 19 wolves (canis lupus) collected from two locations in the yukon territory. liver samples pooled by age and sex were analyzed for 22 organochlorine pesticides and 101 pcb congeners. individual kidney and liver samples were analyzed for arsenic, cadmium, copper, lead, total mercury, selenium and zinc. thirteen individual bone samples were analyzed for lead. while most organochlorines were not present at detectable levels in wolf liver, some chlorobe ...199910635602
temporal and geographic trends in trace element concentrations in moose from yukon, canada.the yukon contaminants committee has conducted a hunter survey since 1994, annually requesting tissue samples from successful moose hunters in the yukon. moose kidney, liver and muscle tissue were analyzed for arsenic, cadmium, chromium, cobalt, copper, lead, mercury, molybdenum, selenium and zinc. levels of most trace elements measured were not of concern toxicologically or in terms of deficiencies. although hepatic selenium concentrations in yukon moose were high compared to moose from other l ...200516143369
spatial and temporal trends of contaminants in terrestrial biota from the canadian arctic.contaminants in the canadian arctic have been studied over the last twelve years under the guidance of the northern contaminants program. this paper summarizes results from that program from 1998 to 2003 with respect to terrestrial animals in the canadian arctic. the arctic terrestrial environment has few significant contaminant issues, particularly when compared with freshwater and marine environments. both current and historical industrial activities in the north may have a continuing effect o ...200516109438
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