Tule Elk - Description

Description

Considered the smallest of the wapiti in North America, the tule elk were the dominant large ungulate in California prior to the arrival of the Spanish. It is typically described as the smallest subspecies of all American elks, with the average weight of adult males only 450 to 550 lb (200 to 250 kg) and females average of 375 to 425 lb (170 to 193 kg). Although tule elk have been reported as half the size of the Roosevelt elk, and sometimes referred to as the dwarf elk, this moniker may be misleading as the smaller size of some tule elk may reflect poor nutrition of elk subsisting on marginal habitat such as the Owens River watershed. California Department of Fish and Wildlife records show recent bull elk on Grizzly Island in Suisun Bay weigh up to 900 pounds (410 kg). This is a similar size to Roosevelt elk bulls which weigh between 700 pounds (320 kg) and 1,100 pounds (500 kg). Wildlife biologist Dale McCullough described an elk tranplanted from Buttonwillow in the San Joaquin Valley to a golf course in Monterey that grew to the size of a Rocky Mountain elk. Also hunter H. C. Banta described the tule elk in the 1850's as "I found no difference in size between these elk and the Oregon, Washington, Wyoming and Colorado elk, and felt sure that the bulls would weight 700 to 800 pounds".

The calves are similar to deer fawns, with brown coats and white spots.

Genetic studies based on mitochondrial and nuclear DNA confirm that Tule elk, Roosevelt elk and Rocky Mountain elk should be considered distinct subspecies. The 2010 nuclear DNA study found five alleles at one locus, indicating that there has either been a mutation at this locus subsequent to the single breeding pair reported by Henry Miller and nineteenth century game warden A. C. Tibbet, or there were three surviving tule elk at the genetic bottleneck.