The Pacific pocket mouse (Perognathus longimembris pacificus) is an endangered species native to California. It is one of the smallest subspecies of little pocket mice, ranging up to 5.2 inches from nose to tail tip. The mouse’s coat is soft, spineless and bristle-free, with a coloring that varies from grayish-brown to yellowish-brown.
The Pacific pocket mouse was once found in abundance along the southern California coast, from Los Angeles all the way to the Mexican border at the southern edge of San Diego County. Unfortunately, due to human development and habitat destruction, its population has declined drastically over the years and it was feared extinct for nearly 20 years before it was “rediscovered” in 1993.
The Pacific pocket mouse is a nocturnal granivore that feeds primarily on seeds and other plant material. Its diet also includes small insects such as ants and beetles. It has external fur-lined cheek pouches that it uses to store food while foraging.
The Pacific pocket mouse lives in sandy coastal soils of the coastal sage scrub ecoregion, where it builds burrows for shelter and protection from predators. It is an important part of its local ecosystem as it helps disperse seeds and aerate soil through its burrowing activities.
Due to its endangered status, conservation efforts are being made by organizations such as San Diego Zoo Wildlife Alliance and Center for Biological Diversity to protect this tiny creature and its habitat. These efforts include monitoring programs, research initiatives, captive breeding programs, habitat restoration projects, public education campaigns, and more.
Overall, the Pacific pocket mouse plays an important role in maintaining healthy ecosystems along the southern California coast. With continued conservation efforts by dedicated individuals and organizations, this species can be saved from extinction and continue to thrive in its natural habitat for generations to come.
