A Biological Reconnaissance of the Base of the Alaska Peninsula Volume 24-26 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...rowleyi (Allen). Rowley Peromyscus. Peromyscus boyiii penicillatus Mearns. Proc. U. S. Nat. Mus., Vol. XIX, Advance Sheet, May 25, 1896, p. 2. Type from El Paso. A large series of this big. long-tailed Pcromyscus from the Franklin and Organ mountains is typical rowleyi, as apparently are also six other specimens taken in Dog and McKittrick canyons in the Guadalupe Mountains. In this region and farther north they range throughout Upper Sonoran zone, being closely associated with junipers and nut pines, as well as with rocks and cliffs. In places they follow the cliffs slightly below the junipers, but only where canyon walls offer especially favorable haunts. In the Guadalupe Mountains they range to the upper limits of junipers, where the yellow pines begin on dry, hot slopes at 7,800 feet, and down in the northeast gulches near Carlsbad at the east base of the mountain slope at 3,100 feet. While usually found along cliffs or among rocks, they are often common among junipers, nut pines, and oaks at considerable distance from any rocks. In such places they live in hollow trees or logs or take advantage of any convenient cover. I have occasionally found them curled up in a soft nest in a hollow tree, and have often found a nest that I attributed to this species in a knothole or under a loose layer of bark. At one of our camps on top of the Guadalupe Mountains, in a beautiful orchard-like park of junipers, one took possession of the camp wagon and made its nest among boxes and sacks. The food of these mice consists largely of juniper berries, or at least the seeds of juniper berries, of which there is usually an abundant supply at all times of the year, but acorns and pine nuts are eaten while they last. The empty shells of seeds and nuts and acorns show the fav...