Mammals of Mesa Verde National Park, Colorado — Edition Insights

A Landscape Measured in Feet and Canyons

Anderson’s introduction establishes a strong sense of place through measured description. The plain “drops 2000 feet in ten miles”; the canyons appear as “crooked yellow lines” in the distance. This is not a generic backdrop but a specific topography that shapes where mammals live. The text moves from the panoramic view to the human history—the cliff dwellings abandoned in the thirteenth century—and then to the park’s establishment in 1906. The prose shifts from visual to historical, then to administrative: the National Park Service’s policy to protect “not only the features of major interest … but other features as well.” This layered opening signals that the study will treat mammals as part of a managed landscape, not merely a checklist.

Trapping Data and the Weight of Evidence

The species accounts are built on specimen records. For the Montane Vole, Anderson lists 16 specimens with precise locations and elevations: “Upper Well, 7575 ft., 69454–69465.” The prose is terse: “The voles were trapped in the dry but dense meadow of grass and sedge.” A single sentence notes that four females trapped on September 3, 1956, were pregnant. This is data, not narrative. But the porcupine entry expands into a mini-history. Anderson cites C.W. Quaintance’s 1935 observations and Donald A. Spencer’s 1946 dendrochronology study, which dated porcupine scars on pinyon pines. The text reports that Spencer “observed three peaks since 1865; these were in about 1885, 1905, and 1935.” The tone remains neutral, even when describing the killing of 71 porcupines in 1933. The dire prediction that “all pine trees on the Mesa Verde were doomed to extinction” is recorded without comment, then undercut by the observation that it “has not come to pass.”

Shifts in Pace: From Field Note to Policy Record

The monograph’s rhythm changes markedly between sections. The introduction moves at a deliberate, almost literary pace, building a scene. The species accounts are compressed, data-driven, with short paragraphs and repeated structures: “Specimens examined.—Total, 16.” The porcupine section, however, expands into a narrative of management conflict, quoting reports from 1930 to 1946. The sentence “The most frequently voiced alarm was that the scenic value of the areas along the entrance highway and near certain ruins was being impaired” introduces a human dimension absent from the vole account. This variation in pace—from the panoramic opening to the terse trapping records to the discursive history of porcupine control—gives the work a layered texture. Anderson lets the evidence speak, but he also lets the story of human intervention unfold.

Readers will find that Anderson’s study rewards attention to its shifts in register. The opening paragraphs, with their careful geography, set a stage that the species accounts then populate with precise numbers. The porcupine section, in particular, shows how a single animal can generate a tangle of observation, policy, and unintended consequences. This is not a field guide for casual identification; it is a document of how science and management intersected in one national park in the mid-twentieth century. Approach it as a historical record of ecological thinking.

Reading the careful trap records in Mammals of Mesa Verde National Park, Colorado brought back quiet afternoons spent annotating old field guides, the pages smelling faintly of dust and rain. That same patience surfaced once in Two New Pocket Gophers from Wyoming and Colorado — Background and Themes, where tiny distinctions mattered enough to pause over, like noticing how light changes a familiar hillside.