Mammals of Mount Rainier National Park

by Merlin K. Potts; Russell K. Grater

When the first wildlife survey was made in 1897 it is likely that the conditions of that year came nearest to representing the original status of the various species—a status that has changed drastically in many instances in the years that have followed. At that time the park was little known and the faunal relationships were relatively undisturbed. In the years since 1900, however, the region has experienced radical changes. Trappers have reduced the fur bearers in large numbers, logging activities in the valleys and on the mountain slopes near the park have entirely changed the ecology of the region. Many important predators, such as the wolf and wolverine, either became extinct or virtually so, while the changing forest scene due to fires and logging brought new species into prominence, such as the porcupine and coyote. Recently elk, released in the nearby valleys, have entered the park and are now firmly established, promising still new changes in the mammal picture as time goes on. In many respects Mount Rainier has become a biotic island in a region where the original conditions no longer exist except in the park. The smallness of this biotic island makes it impossible for even an undeveloped area of this type to represent really primitive conditions. Thus the park today cannot be considered as representing the original wilderness as seen by the first white men to enter the region. It is merely as near the original wilderness as it has been possible to keep it in the midst of all the changes brought about by man.

However, by the preservation of the natural environment, the National Park Service does much to conserve the wildlife as well. In many instances the national parks are among the last remaining refuges for rare and vanishing species of wildlife. The wolverine, the grizzly bear, and the wolf, now extinct over much of their range in North America, may still be found in these sanctuaries, and, along with other species, these creatures of the remote wilderness are fighting their battle of survival in the only areas left to them.

Extirpated species, those native forms which are known to have existed in some areas, but which have since disappeared, are being restored where possible. The muskrat, formerly present in Mount Rainier National Park, now not known to occur, is an example of an extirpated species which should be restored.

WILDLIFE PROBLEMS

Since the establishment of the National Park Service in 1916, it has become increasingly obvious that the occupation of the national parks by man and wildlife must inevitably result in wildlife problems. The act creating the National Park Service is specific in its language; it says that the Service thus established shall promote and regulate the use of the areas by such means and measures necessary “to conserve the scenery and the natural and historic objects and the wildlife therein and to provide for the enjoyment of the same in such manner and by such means as will leave them unimpaired for the enjoyment of future generations.”

The apparent inconsistency presents itself immediately. Natural features must be conserved and protected, they must not be impaired, yet provision must be made for their enjoyment by the millions of visitors who come to the national parks each year. The course that must be followed, then, is one of permitting modification of the natural scene only to the degree required to provide for perpetual enjoyment of “the scenery, the natural and historic objects and the wildlife.”

The relations between man and the wildlife of the national parks are complex. Both occupy the parks, with equal rights to that occupancy. It can scarcely be argued that man is not a part of the natural scene; certainly there is nothing essentially unnatural in the progress of our civilization from the dawn of history to the present. In the national parks, however, the unimpaired values to be preserved are those of the primitive natural scene. Man can strive to maintain these values, unimpaired, because he has the power of reason. Through that power he can recognize the effect of his conflict with nature, and so prevent the destruction of the primitive natural scene by a proper regulation of his acts.

Specifically, the wildlife problems now readily recognized in Mount Rainier National Park are those which have developed because of relations between man and mammals. The deer, bear, and raccoon are outstanding examples. In the developed areas of the park many of these animals have become so accustomed to the proximity of man that they no longer exhibit timidity in his presence. They are essentially “wild” animals, yet because of close association with man for several wildlife generations, they may be practically considered as “semi-domestic” animals.

This “semi-domesticity” is a problem in itself. First, it is not in keeping with the primitive natural scene. The true wildlife picture is not one of a deer eating from a visitor’s hand; that is scarcely more natural than seeing the animal within the fenced enclosure of a zoo. The artificial feeding of any form of wildlife is objectionable for several other reasons. Such feeding encourages an unnatural concentration of the animals in restricted localities, thus increasing the danger of the spread of any contagious disease or infection. In the case of deer, feeding affects, often disastrously, the normal habit of migration to lower elevations in winter. Deer encouraged by feeding to remain at Longmire, for example, encounter difficult times during the winter months. Natural forage is buried beneath the snow, migratory routes to the lowlands are blocked, and starvation is not unusual.

In every instance, experience has shown that when animals are hand-fed, petted, and tamed, the results have been detrimental to both the animals and to man. The “tamed” animals are often dangerous, or may become so. Even the harmless appearing deer may, and do, inflict severe injuries by striking with the fore feet or hooking with the antlers, and bears often strike or bite, once they have lost their instinctive fear of man. When any animal becomes dangerous, the only solutions are to eliminate the danger by killing the animal, or to live-trap and remove it to a more isolated section of the park. The latter is often a temporary expedient because the animal is likely to return almost at once to its original home.