Of Mice and Men

Here in Colorado, the hottest political issue of the day may not be the war in Iraq or the out-of-control federal budget, but rather the plight of a tiny mouse. Back in 1998, a frisky eight-inch rodent known as the Preble's meadow jumping mouse gained protective status under the 1973 Endangered Species Act (ESA). What has Coloradans hot under the collar is that some 31,000 acres of local government and privately owned land in the state and stretching into Wyoming--an area larger than the District of Columbia--was essentially quarantined from all development so as not to disrupt the mouse's natural habitat. Even the Fish and Wildlife Service concedes that the cost to these land owners could reach $183 million. What we have here is arguably the most contentious dispute over the economic impact of the ESA since the famous early-'90s clash between the timber industry and the environmentalist lobby over the "endangered" listing of the spotted owl in the Northwest. That dispute eventually forced the closure of nearly 200 mills and the loss of thousands of jobs. Last week the war over the fate of the Preble's mouse escalated when a coalition of enraged homeowners, developers and farmers petitioned the Department of the Interior to have the mouse immediately delisted as "endangered" because of reliance on faulty data. The property-rights coalition would seem to have a fairly persuasive case based on the latest research on the mouse. It turns out that not only is the mouse not endangered, but it isn't even a unique species. The man who is almost singlehandedly responsible for exposing the truth about the Preble's mouse is Rob Roy Ramey, a biologist and lifelong conservationist, who used to serve as a curator at the Denver Museum of Nature and Science. Mr. Ramey's research--published last year in the peer-reviewed journal Animal Conservation--concluded that the Preble's mouse "is not a valid subspecies based on physical features and genetics." The scientist who conducted the original research classifying Preble's as unique now agrees with Mr. Ramey's assessment. Even scientists who defend extending the mouse's "endangered" status admit that it is 99.5% genetically similar to other strains of mice....