In southeastern Arizona all males captured from February until September were fertile. Van de Graff (1975) observed that males tend to be in reproductive condition for longer periods each year than females. Similar to other species of pocket mice, rock pocket mice live for a maximum of three years (Paulson, 1988). Litter size varies from three to six (Wilson and Ruff, 1999). The breeding season begins in February or March and progresses into July. Sexual dimorphism is observed, with males being larger overall and in certain morphological features such as mastoid width, nasal length, and mandible length (Wilson and Ruff, 1999 Weckerly et al., 1988). Dental formula is 1/1 0/0 1/1 3/3=20 and cheek teeth of are ever growing (Vaughn, 2000). The bottoms of their hind feet are bare to the heels (Wilson and Ruff, 1999). Hairs are coarse with weak "spines" on the rump (Wilson and Ruff, 1999). al., 1988) Pelage is grayish brown on the back with pale orange brown lines on the sides and white underneath. Body size varies regionally (Weckerly et. Their relative size is small in contrast to other members in their genus (Vaughn, 2000). The tails are long and tufted at the tip (Wilson and Ruff, 1999). Rock pocket mice range from 157 to 188mm in total length, with a tail length from 84 to 112mm. Average home range size is 400 meters (Krebs et al., 1990). Rock pocket mice inhabit desert and are particularly associated with rocky areas. It is found only in Russia 1991 Buffalo Bulls football team The 1991 Buffalo Bulls football team represented the University at Buffalo as an independent during the 1991 NCAA Division III football season.Rock pocket mice occur in rocky habitats in the southwestern United States, from south-central Utah through much of Arizona, New Mexico, Texas (western Sonora, Chihuahua and Trans-Pecos), as well as northwestern Mexico (Wilson and Ruff, 1999 Weckerly et. The peak is in the Pusch Sonora palarostris Sonora palarostris, commonly known as the Sonoran shovelnose snake, is a species of small nonvenomous colubrid which is a native of the Sonoran Desert in North America Ferocactus wislizeni Ferocactus wislizeni, the fishhook barrel cactus, also called Arizona barrel cactus, candy barrel cactus, and Southwestern barrel cactus, is a species of flowering plant in the cactus family Cactaceae, native to northern Mexico and the southern United Sakhalin vole The Sakhalin vole is a species of rodent in the family Cricetidae. To its east is Bear Canyon, while to its west is Sabino Canyon. Thimble Peak rises from the foothills on the south side of the range. "Geraea" in its scientific name comes from the Greek geraios, referring to the white hairs on the fruits Thimble Peak Thimble Peak is a well-known landmark in the Santa Catalina Mountains north of Tucson, Arizona. It is known by the common name purplemat, or purple mat Geraea canescens Geraea canescens, commonly known as desert sunflower, hairy desert sunflower, or desert gold, is an annual plant in the family Asteraceae. The nurse tree can provide shade, shelter from wind, or protection from animals who would feed on the smaller plant Nama demissum Nama demissum is an annual flowering plant. In the wild, plants flower in their Nurse tree A nurse tree is a larger, faster-growing tree that shelters a smaller, slower-growing tree or plant. It is a perennial that blooms in March and April. They are called "ground squirrels" because they burrow in loose soil, often under mesquite trees Penstemon parryi Penstemon parryi, the Parry's penstemon, Parry's beardtongue or desert penstemon, is a wildflower native to the Sonoran Desert of Southern Arizona and northern Mexico. Round-tailed ground squirrel The round-tailed ground squirrel, known as "Ardillón cola redonda" in Spanish, live in the desert of the Southwestern United States and Northwestern Mexico.
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