Grizzly Bears of Yellowstone As of the 1800s two explores by the name of Lewis and Clark encountered around 37 grizzly bears while in the Louisiana Purchase. The number of grizzly bears traveled from North Dakota into Idaho between a distance span of 1600 kilometers (1000 mi). The grizzly bears ranged west of the Mississippi river to Canada then central Mexico estimated numbers say around the time of Lewis and Clark the numbers had been between 5000 to 100000 as they went through with their analysis on sightings. The range was 0.014- 0.022 bears/ km (0.037-0.057) bears / mi or 56000 to 86000. A study suggest that the yellow stone park grizzly bears from the time period of 1959 to …show more content…
Also the grizzly bears have expanded their occupied habitat by more than the percent of 50. The Interagency Grizzly Bear Study Team monitored the criteria which was used to determine if the population within the Greater Yellowstone environment had recovered which included the estimated population size, the distribution of females with their young ones, and the mortality rates. About 150 grizzly bears occupy the ranges that are with in partly or entirely within Yellowstone. The number of female’s grizzly’s that gave birth to their young cubs in the park has been relatively stable since the year of 1996. The park may be at or be near its ecological carrying capacity for the well-known grizzly bears. There were about 28 known grizzly mortalities in the Yellowstone Park in 2014. 14 was caused by humans. 7 came about in natural deaths, 1 was of an unknown cause, and 6 was still under investigation. In 2013 the Yellowstone haven’t had any mortalities on record. There were eight human conflicts with grizzly bears that occurred in the park in 2013, compared to a total average of 6 a