STATUS & DISTRIBUTION OF THE RECENT MAMMALS OF KERN COUNTY CALIFORNIA

Alison Sheehey  © Nature Ali

 

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Kern Introduced Species 

NOTE: The information contained herein is accurate except for mammals suspected or reported without substantive verification, these are noted in the notes column. I am working on inputting the status and distribution as well as habitat information. I also have not input all of the contributors to this effort yet (and there have been many). All contributors will be acknowledged. Any comments on distribution, taxonomy, personal observations, collections, or historical information are welcomed.

The following mammal list is from the upcoming book "Status and Distribution of Kern County Mammals," by A. M. Sheehey. Nature Ali Publications. The purpose of this work is to disseminate accurate information about the biogeographically diverse region of Kern County. When finished it will include general status and distribution information. The listing order follows what is found in "Walker's Mammals of World" 1999, by R. M. Nowak; and subspecies nomenclature are mostly from "The Mammals of North America," 2nd ed., 1981, by E. R. Hall. English names refer to the species as a whole, unless individual subspecies have been given a common name. Species range is described briefly. Asterisks specify that the mammal's occurrence in Kern County is supported by specimens from at least one of many Natural History Museums listed at the end of this document.

Taxa are presented in the phylogenetic sequence used in Walker's Mammals of the World. This checklist contains 102 species, four species are listed as endangered by the US Fish and Wildlife Service, one is a federal candidate species, two are currently listed as endangered by the state of California and five are listed as threatened by the state. Additionally twelve species are considered sensitive by the federal authorities and sixteen are considered sensitive by the state of California. Two extirpated species have been reintroduced to the wilds of the county. The list includes two extinct species. Twenty taxa  have been introduced and occur in sufficient numbers to be included here.

Museum specimens have been used to develop the basic list, and review of scientific literature have added to the number of species represented. Interviews with area biologists and the author's personal field experience have added several species not represented in any collection or literature found so far.

Although no works have been published on Kern County mammals, several significant works on the recent mammals of California have been published. California Mammals (Stephens, 1906), Mammals of California (Ingles, 1947), Mammals of the Pacific States (Ingles, 1965), and California's Wildlife, Volume III - Mammals (Zeiner et al., 1990) are major references on the mammals of the state. Williams has written extensively about the rodents of the San Joaquin Valley. Cypher has published many works on the urban kit fox. Brown-Berry has studied distribution and ecology of bats. All species of mammals known to occur in the state at the time were treated by Hall (1981). Books available for laypersons are A Field Guide to the Mammals (Burt & Grossenheider, 1980) and California Mammals (Jameson & Peeters 1989).

These works were used as reference for status and habitat information of Kern's mammals. This compilation is presented to advance the work of many biologists, especially students, as well as the general public. My devotion to the biological diversity of Kern County and personal passion to save the flora and fauna from the developers blade or farmers plow are the reason for making this information available without cost to interested persons. This list  like all living things will evolve as new information becomes available. Please enjoy my labor of love.

Common Name

Genus

species

subspecies

Status and distribution

Notes

MARSUPIALS: ORDER MARSUPIALIA

Opossums: Family Didelphidae 1,1,1,1,1

Virginia opossum*

Didelphis

virginiana

virginiana

RANGE: All areas except desert. HABITATS: Lacustrine, Fresh Emergent Wetland, riparian, parkland, suburban, mature vegetation.

Introduced to CA 1890's to 1915. First record in Bakersfield 1942. Found near water sources, brushy undergrowth, semi-arboreal. Active yearlong; nocturnal. Common.

INSECTIVORES: ORDER INSECTIVORA

Shrews: Family Soricidae 1,1,2,5,6

Dusky shrew*

Sorex

monticolus

obscurus

RANGE: East slope Sierras (NW Desert) HABITATS: high elevation wetland, meadows

mostly crepuscular or nocturnal, moist soil, active year-round

Ornate shrew*

Sorex

ornatus

ornatus

RANGE: East valley, foothills, mountains. HABITATS: valley foothill, montane riparian woodland, chaparral, wetland, marsh, grassland

Diurnal or nocturnal, may be found in dry areas but prefers moist soil

Buena Vista Lake shrew*

Sorex

ornatus

relictus

RANGE: Buena Vista to Tulare Lake basin HABITATS: wetland, marsh, riparian areas

FC, CSC, VERY RARE diurnal or nocturnal, prefers moist soil.

Water Shrew

Sorex

palustris

navigator

RANGE: not known HABITAT: restricted to montane riparian areas

No documented sightings yet, but expected in the higher elevations.

Trowbridge's shrew*

Sorex

trowbridgii

mariposae

RANGE: Greenhorn Mountains HABITATS: coniferous forests, foothill woodlands, montane riparian, red fir

Active day or night, year-round

Crawford's desert or gray shrew

Notiosorex

crawfordi

crawfordi

RANGE: Mojave desert HABITATS: chaparral, sagebrush, desert scrub, riparian, pinyon juniper

no records, Nocturnal, active year-round, dry alluvial fans, arid environments.

Moles: Family Talpidae 0,1,1,1,1

Broad-handed mole*

Scapanus

latimanus

occultus

RANGE: Mountains, Walker Basin HABITATS: meadows, riparian, pasture, grassland.

sandy soil, day or night activity. Most active after rain.

BATS: ORDER CHIROPTERA

Vespertilionid Bats: Family Vespertilionidae 1,1,7,15,20

Long-eared myotis*

Myotis

evotis

evotis

RANGE: Tehachapis to Walker Pass HABITATS: forests, parks,. lives in caves, trees, and buildings

nocturnal, aerial, wide ranging, hibernates

Fringed myotis*

Myotis

thysanodes

thysanodes

RANGE: Mountains from Frazier Park to Walker Pass HABITATS: caves, old buildings

colonial, nocturnal, aerial.

Western small-footed  myotis*

Myotis

ciliolabrum

melanorhinus

RANGE: San Joaquin and Kern Valley. HABITATS: caves, rock crevices, mine tunnels, buildings, near trees

FSC, crepuscular, feeds low over trees or brush.

California myotis*

Myotis

californicus

californicus

RANGE: County-wide HABITAT: desert scrub, chaparral, forest, woodland

Nocturnal, hibernating, small social groups

Myotis

californicus

stephensi

RANGE: Desert HABITAT: desert scrub

Little brown myotis*

Myotis

lucifugus

carissima

RANGE: Sierran Mountains HABITAT: forests, meadow, desert scrub

nocturnal, hibernates, migratory

Yuma myotis*

Myotis

yumanensis

sociabilis

RANGE: County-wide HABITAT: open forests

FSC, hibernates, downslope migration.

Myotis

yumanensis

californicus

RANGE: Valley HABITAT:

FSC, near watersource, colonial roosts

Long-legged myotis*

Myotis

volans

interior

RANGE: mountains, foothills HABITAT: woodlands, forests

nocturnal, hibernates, colonial

Silver-haired bat

Lasionycteris

noctivagans

RANGE: migratory countywide HABITAT:

non-resident migratory, roosts in hollow trees, under bark, buildings, rocks, and caves

Western pipistrelle*

Pipistrellus

hesperus

hesperus

RANGE: County-wide HABITAT: brush, woodlands, desert scrub

common in brush, abundant in desert, nocturnal

Big brown bat*

Eptesicus

fuscus

bernardinus

RANGE: County-wide HABITAT: all habitats

nocturnal, hibernates, roosts in small groups, caves, buildings

Eptesicus

fuscus

pallidus

RANGE: Kern River Valley HABITAT:

colonial roosting, nocturnal

Hoary bat*

Lasiurus

cinereus

cinereus

RANGE: mountains, valley HABITAT: woodlands, forests 

nocturnal, hibernates, roosts in trees, long distance migration

Western red bat*

Lasiurus

blossevillii

teliotis

RANGE: mountains, valley HABITAT: grassland, woodland, shrubland, forest

hibernates, nocturnal, migrates short distances spring and fall.

Pale Big-eared Bat*

Corynorhinus

townsendii

pallescens

RANGE: Mountains - Desert HABITAT:

FSC, CSC

Townsend's Western Big-eared Bat

Corynorhinus

townsendii

townsendii

RANGE: should be in valley HABITAT:

CSC May be in county, no records found yet

Spotted bat*

Euderma

maculatum

RANGE: Mountains - Desert HABITAT:

CSC

Pallid bat*

Antrozous

pallidus

pacificus

RANGE: S. Tehachapis HABITAT:

CSC

Antrozous

pallidus

pallidus

RANGE: Kern Valley HABITAT:

CSC

Free-tailed Bats: Family Molossidae 0,1,2,2,2

Mexican free-tailed bat*

Tadarida

brasiliensis

mexicana

RANGE: County-wide HABITAT:

Western mastiff bat*

Eumops

perotis

californicus

RANGE: Mountains, valley HABITAT:

FSC, CSC

CARNIVORES: ORDER CARNIVORA

Dogs: Family Canidae 1,1,3,5,7

Red fox

Vulpes

vulpes

RANGE: Valley, mountains HABITAT: forest, grassland, woodland, riparian

Introduced spreading direct threat to kit fox

Sierra Nevada red fox

Vulpes

vulpes

necator

RANGE: S. Sierra HABITAT:

CT, Hall lists record from Piutes

Desert kit fox*

Vulpes

macrotis

arsipus

RANGE: Desert HABITAT: desert scrub

San Joaquin kit fox*

Vulpes

macrotis

mutica

RANGE: Valley HABITAT: desert scrub, grassland

FE, CT

Gray fox*

Urocyon

cinereoargenteus

californicus

RANGE: Mountains, Foothills HABITAT: oak woodland

Coyote*

Canis

latrans

ochropus

RANGE: valley,  mountains. HABITAT:

Feral dog*

Canis

familiaris

RANGE: HABITAT:

Introduced

Bears: Family Ursidae 0,1,1,1,1

Black bear*

Ursus

americanus

californiensis

RANGE: Mountains HABITAT: forest, foothill woodland

Game species. Occupies niche left by grizzly bear

California grizzly bear

Ursus

arctos

californicus

RANGE: Mountains last record from Tehachapi Mtns.1918

Extinct

Raccoons and Relatives: Family Procyonidae 0,1,2,2,2

Ringtail*

Bassariscus

astutus

raptor

RANGE: HABITAT:

CSC

Raccoon*

Procyon

lotor

psora

RANGE: HABITAT:

Weasels and Relatives: Family Mustelidae 0,1,7,9,12

Long-tailed weasel*

Mustela

frenata

latirostra

RANGE: HABITAT:

Mustela

frenata

pulchra

RANGE: HABITAT:

Mink

Mustela

vison

aestuarina

RANGE: HABITAT:

* range maps show strong possibility in mtn streams

American marten

Martes

americana

sierrae

RANGE: HABITAT:

CSC ** no county records but the habitat is right in the Sunday Peak/Tiger Flat area

Fisher*

Martes

pennanti

pacifica

RANGE: Greenhorn, Piutes HABITAT:

FSC, CSC

Wolverine*

Gulo

gulo

luteus

RANGE: Piutes HABITAT:

FSC, CT. no recent records

Badger*

Taxidea

taxus

berlandieri

RANGE: HABITAT:

CSC

Taxidea

taxus

jeffersoni

RANGE: HABITAT:

CSC

Western spotted skunk*

Spilogale

gracilis

phenax

RANGE: HABITAT:

Striped skunk*

Mephitis

mephitis

occidentalis

RANGE: HABITAT:

Mephitis

mephitis

holzneri

RANGE: HABITAT:

Cats: Family Felidae 0,1,2,4,5

Feral cat

Felis

catus

RANGE: HABITAT:

introduced

Bobcat

Lynx

rufus

baileyi

RANGE:Mojave desert HABITAT:

* by Hall's map in desert

Bobcat*

Lynx

rufus

californica

RANGE: valley mountains HABITAT:

Mountain lion*

Puma

concolor

californica

RANGE: Mountains foothills HABITAT: rocky talus, riparian, conifers, oak woodlands

protected

Jaguar*

Panthera

onca

arizonensis

RANGE: extirpated HABITAT:

** last reported in Tehachapi Mtns. 1919

ODD-TOED UNGULATES: ORDER PERISSODACTYLA

Horses and Burros: Family Equidae 1,1,1,1,1

Wild burro

Equus

asinus

RANGE: China Lake area HABITAT:

Introduced

Pigs: Family Suidae 0,1,1,1,1

Wild pig*

Sus

scrofa

RANGE: foothills mountains HABITAT:

Introduced Game species

EVEN-TOED UNGULATES: ORDER ARTIODACTYLA

Deer and Relatives: Family Cervidae 1,1,2,2,3

Tule Elk*

Cervus

elaphus

nannoides

RANGE: Tupman, Temblors, San Emigdio HABITAT:

Reintroduced from captive population at Tupman

Rocky Mountain Elk

Cervus

elaphus

nelsoni

RANGE: Tehachapis HABITAT:

introduced

Mule deer*

Odocoileus

hemionus

californicus

RANGE: HABITAT:

Game species

Pronghorn: Family Antilocapridae 0,1,1,1,1

Pronghorn*

Antilocapra

americana

americana

RANGE: Antelope Plain south to San Emigdio HABITAT:

*reintroduced

Cattle, Sheep, and Relatives: Family Bovidae 0,1,2,3,4

Cattle

Bos

taurus

RANGE: HABITAT:

* no records of feral populations

Domestic goat*

Ovis

aries

RANGE: HABITAT:

California bighorn sheep*

Ovis

canadensis

californiana

RANGE: extirpated HABITAT:

FE, CT

Desert bighorn sheep*

Ovis

canadensis

nelsoni

RANGE: HABITAT:

* introduced in Los Padres and El Paso Mtns.

RODENTS: ORDER RODENTIA

Squirrels: Family Sciuridae 1,1,6,11,17

Merriam's chipmunk*

Tamias

merriami

kernensis

RANGE: HABITAT:

Tamias

merriami

merriami

RANGE: HABITAT:

Mt. Pinos chipmunk*

Tamias

speciosus

callipeplus

RANGE: Mt. Pinos HABITAT:

Lodgepole chipmunk*

Tamias

speciosus

frater

RANGE: mountains HABITAT: coniferous forest

Tamias

speciosus

sequoiensis

RANGE: HABITAT:

Tamias

speciosus

speciosus

RANGE: HABITAT:

Least chipmunk*

Tamias

minimus

scrutator

RANGE: HABITAT:

questionable record White Mtn. Inyo County species

White-tailed antelope squirrel*

Ammospermophilus

leucurus

leucurus

RANGE: Kern Valley, Mojave Desert

HABITAT: scrubland

San Joaquin antelope squirrel*

Ammospermophilus

nelsoni

RANGE: West Valley

HABITAT: Saltbush scrublands

FSC, CT

California ground squirrel*

Spermophilus

beecheyi

fisheri

RANGE: Entire county HABITAT: Grassland, forest,

Spermophilus

beecheyi

parvulus

RANGE: HABITAT:

Mohave ground squirrel*

Spermophilus

mohavensis

RANGE: HABITAT:

FSC, CSC

Fox squirrel*

Sciurus

niger

RANGE: Bakersfield HABITAT: parklands, suburban neighborhoods

Introduced

Western gray squirrel*

Sciurus

griseus

anthonyi

RANGE: HABITAT:

Game species

Sciurus

griseus

griseus

RANGE: HABITAT:

Game species

Douglas' squirrel*

Tamiasciurus

douglasii

albolimbatus

RANGE: Northern Greenhorn Mtns.

HABITAT: coniferous forest

Northern flying squirrel*

Glaucomys

sabrinus

lascivus

RANGE: Breckenridge Mountain HABITAT:

1999 record: Wm. Van Herweg

Beaver: Family Castoridae 0,1,1,1,2

Beaver*

Castor

canadensis

RANGE: Kernville, Kern River HABITAT: riparian

Introduced

Castor

canadensis

subauratus

RANGE: Tulare Lake Basin HABITAT: streamsides

most likely extirpated

Pocket Gophers: Family Geomyidae 0,1,1,1,10

Southwestern pocket gopher*

Thomomys

bottae

angularis

RANGE: HABITAT:

Thomomys