. Bull Mountains coal field study : final report. Coal mines and mining; Animal ecology; Wildlife management. I'X'St':.. â ^'â â :;:-l,i. .:â¢>::,:.,. ,â '.â:,â :;.â â â â â â â â where marked deer occurred was characterized by vast open sidehills with timbered side drainages. The vegetational and physical nature of this area probably lent itself to observing deer more readily than did the precipitous, densely timbered portion of Fattig Creek where marked deer also occurred. Secondly, the length of time and period of the year when data on individual animals were collected may have been a co
. Bull Mountains coal field study : final report. Coal mines and mining; Animal ecology; Wildlife management. I'X'St':.. â ^'â â :;:-l,i. .:â¢>::,:.,. ,â '.â:,â :;.â â â â â â â â where marked deer occurred was characterized by vast open sidehills with timbered side drainages. The vegetational and physical nature of this area probably lent itself to observing deer more readily than did the precipitous, densely timbered portion of Fattig Creek where marked deer also occurred. Secondly, the length of time and period of the year when data on individual animals were collected may have been a contribut- ing factor. All relocations of two adult females captured during January 1976, were gathered over a period of 10 months, and most of those were gathered during spring. Home range size for these animals were smaller than those from which a similar number of relocations was obtained over a period of two or three years (Table 3). A very important factor was perhaps the greater mobility demonstrated by adult males (Dasman and Taber 1956 and Robinette 1966). Average home range size for 12 adult females (Table 3) was 602 acres ( sq. mi.) compared to 767 acres ( sq. mi.) for two adult males. A geometric center of activity was determined for each animal (Table 3] using a method described by Hayne (1949). Distances from all observations of each animal, which included the capture site, to the center of activity was measured and averaged giving a radius of activity for each individual. The distances for all 121 observations of the 12 adult females were pooled and averaged giving a standard radius of activity of ,58 miles for those females. A standard radius of activity of .74 miles was calculated for 26. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dusek, Gary L; Montana. Department of
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