This field investigation was designed to further
the understanding of the significant influence which
parent population density, as well as dispersion, have
on the dynamics of enclosed populations of the montane
vole, Microtus montanus (Peale). The study was conducted
in Klamath County, Oregon from June, 1963 to February,
1964. The...
Three products derived from shrimp processing waste (Pandalus
jordani) and a protein concentrate extracted from king crab waste
(Paralithodes camschatica) were evaluated as feed supplements for
standard dark and sapphire pelter mink (Mustela vison) replacing
approximately 10 and/or 20 percent of the protein in a standard wet
diet (33 percent...
Townsend's mole, Scapanus townsendii (Bachman), was
studied by live trapping, dead trapping, and observation
from July 1961, to July 1963, in Tillamook County,
Oregon. This study was initiated at the request of Tillamook County farmers to determine biological facts that
would assist them in their efforts to control this small...
Home range, dispersal, homing and density of Townsend's mole, Scapanus townsendii (Bachman), were studied during 1964 near Tillamook, Oregon. Additional information on the success of marking
and capture techniques and the response of moles to flooding was gathered. This study was initiated to supply information which might aid in the...
Six hundred and forty nutrias, Myocastor coypus (Molina), were collected near Corvallis, Oregon, and examined to determine criteria of their growth and reproduction. Two hundred and eighty-nine
were tagged, measured, and released to determine growth under natural conditions. Nutria weights were calculated to the nearest 0.1 pound by weighing the...
