Graduate Thesis Or Dissertation

Habitat use by opossums in an urban environment

Public Deposited

Downloadable Content

Download PDF


Attribute NameValues
  • Habitat availability and use by an urban population of opossums were studied with radio telemetry in Corvallis, Oregon in 1981 and 1982. For non-den observations, residential neighborhood types were used about in the proportion available, agricultural/park/riverfront neighborhood types were used in higher proportion than available, and commercial/industrial neighborhood types were used in lower proportion than available. Surface types were also used in proportions different than available within home ranges. Structures and paved surfaces were used less than available, while unpaved surfaces were used in greater proportion than available. Dens were primarily located in man-made structures (76%) and in residential neighborhood types (79%). Unpaved surfaces accounted for 24% of dens, and no dens were found on paved surfaces. Home ranges were more stable and smaller than those reported in rural environments (means; male = 32.36 ha, female = 9.01 ha). Distances moved per night were also shorter than previously reported. Year-round availability of food, abundant den sites, and relative freedom from competitors and predators were proposed as reasons for the stable, small home ranges and success of opossums in an urban habitat.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Non-Academic Affiliation
Rights Statement
Digitization Specifications
  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B&W), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.



This work has no parents.

In Collection: