Forest Research Centre Research Articles

Early Summer Activities of Porcupines as Determined by Radio-Positioning Techniques

well as on preference of tree species and/ or ground level shelters as daytime resting places. In addition, observations were made on the influence of mosquitoes on activity and on foods taken. This study was conducted at the Forest Research Center of the University of Minnesota near Cloquet, Minnesota from May 26 to July 16, 1960. The 3,300-acre area lies in a glacial outwash plain that is much interrupted by eskers and basins, the latter now in the bog-forest stage of succession. Upland tree cover consists of a variety of conifer-hardwood forests (Allison and Brown, 1946; Burcalow and Marshall, 1958). In both the upland and bog forests there is a heavy undergrowth of brush, herbaceous plants, and ferns (Magnus, 1949). Details on the use of the miniature 50-g radio transmitters having a signal range of approximately 1.5 miles are described in a preliminary report (Marshall, 1960). A unit was fastened on the back of each of 2 adult female porcupines by means of a modified dog harness and on the back of an immature female, the young of one of the adults, by means of a homemade buckskin harness. The location of the animals was determined at dawn, midday, and dusk by means of a 14-lb portable radio signal-locator equipped with directional antenna. Most records re-

Change of Forage Seed Quality under Different Simulated Shipping Conditions1

Agronomy JournalVolume 52, Issue 1 p. 37-40 Article Change of Forage Seed Quality under Different Simulated Shipping Conditions1 T. M. Ching, T. M. ChingSearch for more papers by this authorH. L. Taylor, H. L. TaylorSearch for more papers by this authorP. T. Rowell, P. T. Rowell Respectively, Assistant Agronomist, Farm Crops Department, Oregon Agr. Exp. Sta., Chief of Division of Plant Industry, and Chief of Division of Market Development, Oregon State Dept. of Agr. The authors acknowledge the donation of seed by warehouses in western Oregon and the use of various condition rooms at the Oregon Forest Research Center, Corvallis, Oregon.Search for more papers by this author T. M. Ching, T. M. ChingSearch for more papers by this authorH. L. Taylor, H. L. TaylorSearch for more papers by this authorP. T. Rowell, P. T. Rowell Respectively, Assistant Agronomist, Farm Crops Department, Oregon Agr. Exp. Sta., Chief of Division of Plant Industry, and Chief of Division of Market Development, Oregon State Dept. of Agr. The authors acknowledge the donation of seed by warehouses in western Oregon and the use of various condition rooms at the Oregon Forest Research Center, Corvallis, Oregon.Search for more papers by this author First published: 01 January 1960 https://doi.org/10.2134/agronj1960.00021962005200010012xCitations: 2 1 Technical paper number 1221, Oregon Agricultural Experiment Station, Corvallis. The work was supported partly by the Agricultural Marketing Servirce, U.S.D.A., and Divisions of Plant Industry and Market Development, Oregon State Department of Agriculture. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume52, Issue1January 1960Pages 37-40 RelatedInformation