The International Society for the Protection of Mustangs & Burros (ISPMB), has just completed a 15 year observation and study of four wild horse herds, and the data indicates that the White Sands herd did not double in size until the 14th year. (The Bureau of Land Management claims herd size doubles every 4 years.) Also, the Gila herd grew at an average rate of 10% per year, not the 20% or more that the BLM claims.
Karen Sussman, President of International Society for the Protection of Mustangs & Burros, stated these facts in a letter to Sally Jewell, Secretary of the Interior (with a copy to Neil Kornze, BLM Director and Joan Guilfoyle, BLM’a Wild Horse and Burro Program Division Chief).
Sussman also concluded that “BLM’s management of wild horses is actually increasing fertility rates due to heavy-handed disruption and destruction of the social structures from frequent roundups.”
You can (and should) read the entire letter HERE.
Sussman will post any response she receives on the website for ISPMB.
The evidence continues to mount that BLM’s population modeling estimates are incorrect. The ISPMB study corroborates evidence in the April 2014 “Report: Wild Horse Population Growth.”
In 2013, the National Academy of Science issued findings and cited two chief criticisms of the BLM’s Wild Horse and Burro program: unsubstantiated populations estimates in herd management areas (HMA), and management decisions that are not based on science.
The BLM continues to give false information to the public, and this false information is then repeated by BLM Advisory Councils, ranchers and the media. Over and over again.
The Wyoming Office of Tourism has gone so far as to state that in good years, wild horse herds can increase by 40%.