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The California deermouse or California mouse (Peromyscus californicus) is a species of rodent in the subfamily Neotominae in the family Cricetidae. It is the only species in the Peromyscus californicus species group. It is found in northwestern Mexico and central to southern California. It is the largest Peromyscus species in the United States ...
Cactus mice are small cricetid rodents, with large eyes and ears, a pointed snout, and a long monocolor tail. Average dimensions for P. eremicus are as follows: total length, 160 to 211 mm (6.3 to 8.3 in); length of body, 72 to 100 mm (2.8 to 3.9 in); length of tail, 84 to 120 mm (3.3 to 4.7 in); length of hind foot, 18 to 22 mm (0.71 to 0.87 in); length of ear, 13.4 to 20 mm (0.53 to 0.79 in ...
[5] [7] [9] The tails are thickest before entering winter hibernation and thin in the spring, when they come out of hibernation and assume normal activity. [4] [9] This is unique among North American small mammals. [5] There is no sexual dimorphism shown in dark kangaroo mice except for zygomatic breadth.
The giant kangaroo rat (Dipodomys ingens) is endemic to California. Order: Rodentia Family: Heteromyidae. Twenty-six species of pocket mice and kangaroo rats occur in California. Subfamily Dipodomyinae (kangaroo rats and mice) Pacific (or agile) kangaroo rat, Dipodomys agilis (endemic) California kangaroo rat, Dipodomys californicus
4. Predation Risk: Pocket mice living in highly vulnerable predator areas are less likely to scavenge for food and must do so with caution. 5. Type of soil: If the soil is too hard, pocket mice must find other means of obtaining their food. When a pocket mouse has found sufficient seeds, it will begin to store these resources in its fur-lined ...
Similar species are the plains harvest mouse (Reithrodontomys montanus) and the fulvous harvest mouse (R. fulvescens), which has a longer tail.The species co-occurs with the similar western harvest mouse (R. megalotis), which tends to have dorsal fur that is more gray than R. raviventris and with ventral fur that is white to grayish; and the house mouse (Mus musculus), which is gray, has a ...
In Plumas County, California, deer mice bred through December in good mast (both soft and hard masts) years but ceased breeding in June of a poor mast year. [11] Deer mice breed throughout the year in the Willamette Valley, but in other areas on the Oregon coast there is usually a lull during the wettest and coldest weather. [12]
This is a list of invasive species in North America.A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not a native species), becomes capable of establishing a breeding population in the new location without further intervention by humans, and becomes a pest in the new location ...