Animalia > Chordata > Mammalia > Rodentia > Sciuridae > Tamias > Tamias quadrimaculatus

Tamias quadrimaculatus (long-eared chipmunk)

Wikipedia Abstract

The long-eared chipmunk (Neotamias quadrimaculatus), also called the Sacramento chipmunk or the four-banded chipmunk, is a species of rodent in the squirrel family Sciuridae. It is endemic to the central and northern Sierra Nevada of California and Nevada in the United States. Long-eared chipmunks have the longest ears out of all species of chipmunks.
View Wikipedia Record: Tamias quadrimaculatus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 9.21
EDGE Score: 2.32


Adult Weight [2]  85 grams
Female Weight [2]  92 grams
Male Weight [2]  79 grams
Weight Dimorphism [2]  16.5 %
Female Maturity [4]  11 months 9 days
Diet [3]  Frugivore, Granivore
Diet - Fruit [3]  50 %
Diet - Seeds [3]  50 %
Forages - Ground [3]  100 %
Arboreal [1]  Yes
Gestation [4]  31 days
Hibernates [1]  Yes
Litter Size [4]  5
Litters / Year [4]  1


Name Countries Ecozone Biome Species Report Climate Land
Sierra Nevada forests United States Nearctic Temperate Coniferous Forests

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Lassen Volcanic National Park II 29388 California, United States
Sevilleta LTER Site Long Term Ecological Research IV 228335 New Mexico, United States
Yosemite National Park II 95209 California, United States

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States Yes

Prey / Diet

Ceanothus cordulatus (whitethorn ceanothus)[2]
Nymphalis californica (California Tortoiseshell)[2]
Pinus lambertiana (Sugar pine)[2]
Pseudotsuga menziesii (Douglas fir)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Anobium punctatum (furniture beetle)1
Aplodontia rufa (mountain beaver)1
Aplodontia rufa californica1
Arborimus pomo (Sonoma tree vole)1
Callospermophilus lateralis (golden-mantled ground squirrel)2
Dendragapus obscurus fuliginosus (Sooty Grouse)1
Ernobius mollis (Pine bark anobiid)1
Ernobius punctulatus1
Heliothrips haemorrhoidalis (Greenhouse thrip)1
Neotoma cinerea (bushy-tailed woodrat)1
Ovis canadensis (bighorn sheep)1
Peromyscus boylii (brush mouse)1
Sciurus aberti (Abert's squirrel)1
Sciurus arizonensis (Arizona gray squirrel)1
Sciurus griseus (western gray squirrel)1
Tamias cinereicollis (gray-collared chipmunk)1
Tamias ruficaudus (red-tailed chipmunk)1
Tamias speciosus (lodgepole chipmunk)2
Tamias umbrinus (Uinta chipmunk)1
Tamiasciurus douglasii (Douglas's squirrel)1


Parasitized by 
Eumolpianus eumolpi eumolpi[5]

Range Map

North America;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Tamias quadrimaculatus, Robin G. Clawson, Joseph A. Clawson, and Troy L. Best, MAMMALIAN SPECIES No. 469, pp. 1-6 (1994)
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
5International Flea Database
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access