During August a series of about 175 animals was trapped at various sites to assess reproductivite parameters of the population. Approximately 95 blood plasma samples were taken and frozen for a later androgen assay in the Laboratory. Material was saved for ageing. Project Number 183.
Jannett, Jr., Frederick J.
"Social Dynamics of the Montane Vole, Microtus montanus,"
Jackson Hole Research Station Annual Report: Vol. 1971
, Article 15.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1971/iss1/15