Some Aspects of the Ecology of the Virginia Opossum (Didelphis virginiana virginiana Kerr 1792) in an Urban Environment
Eighty-three Didelphis virginiana from the Portland metropolitan area were collected and studied from December 1974 through May 1976. Males averaged 3394 g, females 2318 g. An annual sex ratio of 68.7:31.3 was recorded. Data indicate the possibility of a year-round breeding season and suggest the oc...
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| Format: | Others |
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PDXScholar
1976
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| Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/2547 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=3552&context=open_access_etds |