How does the Service estimate black-tailed prairie dog population numbers?
Estimates of prairie dog populations are typically not based on numbers of individual animals, but on estimates of the amount of occupied habitat. However, many people are interested in the estimated numbers of prairie dogs. The actual number of animals present depends upon the prevailing density of animals in that locality. Estimates of black-tailed prairie dog density vary depending upon the season, region, and climatic conditions, but typically range from 2 to 18 individuals per acre, with an average of 10 per acre. If 10 is used as an average number of black-tailed prairie dogs per acre, the estimated population of black-tailed prairie dogs in the U.S. would be nearly 24 million. Why is the black-tailed prairie dog important? Prairie dogs are an integral part of the prairie grassland ecosystem and their presence increases both animal and plant diversity. The black-tailed prairie dog provides important habitat for and is prey for many species. The endangered black-footed ferret, mou
