Bergstrom R C
J Wildl Dis. 1975 Jan;11(1):40-4. doi: 10.7589/0090-3558-11.1.40.
Dictyocaulus viviparus infections in Rocky Mountain elk (Cervus canadensis of Teton Countywere surveyed by fecal analyses during spring, summer and winter and by fecal analyses and necropsies during fall hunting seasons, 1968-1973. Prevalance of the lungworms was relatively high: 32-70% during the spring; slightly lower, 30-47%, during the summer; 21-39% in the fall; and declined to the annual low of 8-19% during the winter. Conversely, elk summering on Big Game Ridge showed an increase in prevalance of D. viviparus from 1969 to 1973. Decreases in prevalance of lungworms were noted on the National Elk Refuge at Jackson after management changes were effected in 1971.
1968年至1973年的秋季狩猎季节期间，通过粪便分析对怀俄明州提顿县的落基山麋鹿（加拿大马鹿）体内的胎生网尾线虫感染情况进行了调查，春季、夏季和冬季通过粪便分析，秋季通过粪便分析和尸检进行调查。肺线虫的感染率相对较高：春季为32%至70%；夏季略低，为30%至47%；秋季为21%至39%；冬季降至年度最低点8%至19%。相反，在大猎物岭避暑的麋鹿，其胎生网尾线虫感染率在1969年至1973年期间有所上升。1971年实施管理措施后，杰克逊国家麋鹿保护区的肺线虫感染率有所下降。
