H. S. Hill

A Statistical Analysis System (SAS) program has been developed for analysis of data gathered from radio-telemetry studies of animal movement. The program requires as input data from each observation (1) a pair of directional readings, one from each of 2 known reference points to an animal location, (2) animal identification number and (3) time of observation. From these inputs, x-y coordinates of each animal location are computed relative to a specified origin. A number of animal movement statistics are computed and displayed graphically. Boundary points for the home range (convex polygon...

Feeding strategies of the beaver (Castor canadensis) were investigated on the Savannah River Plant in the Upper Coastal Plain region of South Carolina. Three beaver colonies. comprising 4 ponds, were selected. Feeding by beavers upon woody vegetation was monitored monthly. Sweetgum (Liquidambar styraciflua) was the most important woody species for the beaver. Stems 2.5 - 5.0 cm diameter stump high and stems located within the water were preferentially selected. Selection of woody vegetation decreased during spring and summer months and increased during winter months. One pond was deserted...