Also called a chickaree or pine squirrel, this small tree squirrel is active year-round.
Lassen Volcanic National Park is home to approximately 57 species of mammals ranging is size from the tiny shrew to the North American black bear.
Meat-eaters | Carnivores
Carnivores are perhaps the most widely recognized group of mammals in Lassen Volcanic National Park. Although grizzly bears once roamed the area, they were extirpated from California when the last individual was shot in the early 1920s.
The best known members of rodentia found in the park are mice, chipmunks, squirrels, and gophers. The order also includes lesser known taxa like voles. Mice (8 species) and their allies, chipmunks (3 species), and squirrels (6 species) constitute more than half of the rodent species in the park. Most of the remaining genera are represented by only a single species like marmots, aplodontia, and porcupines. The most commonly sighted rodents are:
Millions of bats live in national parks. They pollinate, eat insects, use echolocation, and fascinate visitors. Learn more about the secret lives of bats on nps.gov.
The eight species of bat in Lassen Volcanic include:
Big brown bat, Eptesicus fuscus bernardinus
California myotis, Myotis californicus californicus
Fringed myotis, Myotis thysanodes
Hoary bat, Lasiurus cinereus
Little brown myotis, Myotis lucifugus carissima
Long-legged myotis, Myotis volans interior
Silver-haired bat, Lasionycteris noctivagans
Yuma myotis, Myotis yumanensis
Species of Concern
There are no Federally listed mammals within Lassen Volcanic National Park and the Sierra Nevada red fox is the only mammal species that is listed as Threatened by the State of California. The Sierra Nevada snowshoe hare, Sierra Nevada mountain beaver, and the American badger are all considered a species of concern by the State of California.
Species Attribute Definitions
Definitions
Occurrence
Occurrence values are defined below. One or more Occurrence Tags may be associated with each Occurrence value.
Present: Species occurs in park; current, reliable evidence available.
Probably Present: High confidence species occurs in park but current, verified evidence needed.
Unconfirmed: Species is attributed to park but evidence is weak or absent.
Not In Park: Species is not known to occur in park.
Occurrence Tags
Adjacent: Species is known to occur in areas near to or contiguous with park boundaries.
False Report: Species was reported to occur within the park, but current evidence indicates the report was based on misidentification, a taxonomic concept no longer accepted, or other similar problem of error or interpretation.
Historical: Species' historical occurrence in park is documented. Assigned based on judgment as opposed to determination based on age of the most recent evidence.
Abundance
Abundant:
Animals: May be seen daily, in suitable habitat and season, and counted in relatively large numbers.
Plants: Large number of individuals; wide ecological amplitude or occurring in habitats covering a large portion of the park.
Common:
Animals: May be seen daily, in suitable habitat and season, but not in large numbers.
Plants: Large numbers of individuals predictably occurring in commonly encountered habitats but not those covering a large portion of the park.
Uncommon:
Animals: Likely to be seen monthly in appropriate habitat and season. May be locally common.
Plants: Few to moderate numbers of individuals; occurring either sporadically in commonly encountered habitats or in uncommon habitats.
Rare:
Animals: Present, but usually seen only a few times each year.
Plants: Few individuals, usually restricted to small areas of rare habitat.
Occasional:
Animals: Occurs in the park at least once every few years, varying in numbers, but not necessarily every year.
Plants: Abundance variable from year to year (e.g., desert plants).
Unknown: Abundance unknown
Nativeness
Native: Species naturally occurs in park or region.
Non-native: Species occurs on park lands as a result of deliberate or accidental human activities.
Unknown: Nativeness status is unknown or ambiguous.
List Differences
The Checklist contains only those species that are designated as "present" or "probably present" in the park.
The Full List includes all the checklist species in addition to species that are unconfirmed, historically detected, or incorrectly reported as being found in the park. The full list also contains species that are "in review" because their status in the park hasn't been fully determined. Additional details about the status of each species is included in the full list.
The checklist will almost always contain fewer species than the full list.
