. The bison of Yellowstone National Park. American bison; Mammals. 74 Bison of Yellowstone National Park were most susceptible. Crippled and otherwise handicapped ani- mals, and those weaker because of size, would also be affected more quickly. Differential and total mor- tality among subadults, as dis- cussed previously, suggested that among otherwise healthy bison of all ages they were most vulnerable. Size, together with social standing in the population (see Suggested Mechanisms of Population Regu- lation), may explain this. A quick-acting type of winterkill occurred once during the study
. The bison of Yellowstone National Park. American bison; Mammals. 74 Bison of Yellowstone National Park were most susceptible. Crippled and otherwise handicapped ani- mals, and those weaker because of size, would also be affected more quickly. Differential and total mor- tality among subadults, as dis- cussed previously, suggested that among otherwise healthy bison of all ages they were most vulnerable. Size, together with social standing in the population (see Suggested Mechanisms of Population Regu- lation), may explain this. A quick-acting type of winterkill occurred once during the study period, but old bison bones indi- cated similar occurrences in the past. During the severe winter of 1964-65, a group of 18 bison (in- cluding 3 calves, 2 mature and 1 spike bull, 7 cows of various ages, and 5 unidentified animals) died before the end of January at a small warm-slough area in the Be- chler Meadows. The snow there, west of the Continental Divide,. Fig. 26 Bull bison foraging in snow approximately feet 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 Meagher, Margaret Mary; United States. National Park Service. [Washington] : U. S. Dept. of the Interior, National Park Service
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Keywords: ., bookauthorunitedstatesnatio, bookcentury1900, booksubjectmammals
