Report: WILD HORSE POPULATION GROWTH

Straight from the Horse's Heart

Research Collaboration by:
Kathleen Gregg Environmental Researcher
Lisa LeBlanc Environmental Researcher
Jesica Johnston Environmental Scientist
April 25, 2014

INTRODUCTION

Twin PeaksThe recent National Academy of Science (NAS) report on the Wild Horse and Burro Program determined that the Bureau of Land Management (BLM) has no evidence of excess wild horses and burros; because the BLM has failed to use scientifically sound methods to estimate the populations (NAS, 2013). The NAS cited two chief criticisms of the Wild Horse and Burro program: unsubstantiated populations estimates in herd management areas (HMA), and management decisions that are not based on science (NAS, 2013).

Effective wild horse and burro management is dependent on accurate population counts and defensible assumptions. The Bureau of Land Management (BLM) routinely uses the assumption that wild horse and burro herds increase annually at an average rate of 20%. However, our review of available scientific literature combined with an analysis of…

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