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WFC110L Biology and
Conservation of WildMammals
Pacific Coast Mammals I
Spring 2013
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Lab Overview: Didelphimorphia
and Soricomorpha Didelphimorphia
Didelphidae
Didelphis virginiana
Soricomorpha
Soricidae
Notiosorex crawfordi
Sorex palustris
Sorex sonomae
Sorex vagrans
Talpidae
Neurotrichus gibbsii
Scapanus latimanus
Scapanus townsendii
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Lab Overview: Chiroptera
Molossidae
Eumops perotis
Tadarida brasiliensis
Phyllostomidae Macrotus californicus
Vespertilionidae
Antrozous pallidus
Corynorhinus townsendii
Eptesicus fuscus Euderma maculatum
Lasionycteris noctivagans
Lasiurus blossevillii
Lasiurus cinereus
Myotis sp.
Pipistrellus hesperus
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Lab Overview: Cetacea
Odontoceti
Delphinidae
Orcinus orca Phocoenidae
Phocoena phocoena
Physeteridae
Physeter catodon
Mysticeti
Balaenidae
Eubalaena glacialis
Balaenopteridae
Balaenoptera sp.
Eschrichtiidae
Eschrichtius robustus
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Family Didelphidae
Didelphis virginiana
Common name: Virginia
opossum
Introduced in California
Mostly nocturnal &
omnivorous
Most cultivated areas west
of Sierra Nevada
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Family Didelphidae
Didelphis virginiana Skin: grey pelage
Skull: large, incisors 5/4, trituberculate molars,
sagittal crest
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Lab Overview: Soricomorpha
2 families
7 species
Soricidae
Notiosorex crawfordi
Sorex palustris
Sorex sonomae
Sorex vagrans
Talpidae
Neurotrichus gibbsii
Scapanus latimanus
Scapanus townsendii
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Family Soricidae
Notiosorex crawfordi Common name: Desert
shrew
Light underparts &
conspicuous pinnae
Dry habitats, loose,
sandy soil
Southern California
Skin: large ears
Skull: upper jaw with 3 unicuspid teeth
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Family Soricidae
Notiosorex crawfordi
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Family Soricidae
Sorex palustris Common name: Water
shrew
Palustris = swamp
Very dark; hind feet
with fringe of hairs
Small, swift, coldstreams & lakes
Sierra Nevada, Cascade
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Family Soricidae
Sorex palustris Skin: smaller ears, larger, black or dark brown
Skull: upper incisor lacking median tine, 1st
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Family Soricidae
Sorex sonomae Common name: Fog
shrew
Large, brown
Moist habitats, with
slugs and snails
Coastal coniferous
forests north of SanFrancisco
Skin: large, reddish
Skull: upper incisors lack a median tine;
1st= 2nd incisors, 3rd < 4th
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Family Soricidae
Sorex vagrans Common name: Vagrant
shrew
Bi-colored tails
Grasses, willow along
streams
Sierra Nevada and coastal
ranges
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Family Soricidae
Sorex vagrans Skin: brown or grey
Skull: upper incisors
with median tine;
3rd < 4th
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Family Talpidae
Neurotrichus gibbsii Common name: American
shrew mole
Small Moist areas in coastal
redwood forest
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Family Talpidae
Neurotrichus gibbsii Skin: forehand longer
than wide, long tail
Skull: 8-9 pair of teeth inlower jaw;
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Family Talpidae
Scapanus latimanus Common name: Broad-
footed mole
Latimanus = spade, big
hand
Well furred tail
Throughout Cal. except
Central valley and desertregion
Skin: light gray or brownish
Skull: unicuspid teeth, unevenly spaced, crowded;rostrum short and broad
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Family Talpidae
Scapanus townsendii Common name: Townsends
mole
the largest mole in NorthAmerica
Nearly naked tail
Moist lowland areas west of
the Cascade Mountains
NW of Cal.
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Family Talpidae
Scapanus townsendii Skin: large, black, tail naked
Skull: unicuspid teeth evenly
spaced, not crowded; rostrumlong and narrow
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Lab Overview: Chiroptera
3 families
12 species
Molossidae
Eumops perotis
Tadarida brasiliensis
Phyllostomidae
Macrotus californicus
Vespertilionidae
Antrozous pallidus
Corynorhinus townsendii
Eptesicus fuscus Euderma maculatum
Lasionycteris noctivagans
Lasiurus blossevillii
Lasiurus cinereus Myotis sp.
Pipistrellus hesperus
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Family Molossidae
Eumops perotis Common name: Western
mastiff bat
the largest molossid in NA
the largest bat in CA
large ears united across thetop
tough and leathery flight
membranes Buildings, caves
Southern Cal.
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Family Molossidae
Eumops perotis Skin: large, grey or dark
brown, broad ears joinedacross top of head
Skull: upper incisors incontact with each other
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Family Molossidae
Tadarida brasiliensis Common name: Brazilian
free-tailed bat
social organisms Colonies with millions of
bats
Throughout Cal.
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Skin: small, chocolatebrown, ears not joined atbase
Skull: 1 pair upperincisors, 5 pairs uppercheek teeth, 1stpairminute; rostrum, longerthan wider; U-shaped gapbetween upper incisors
Family Molossidae
Tadarida brasiliensis
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Family Phyllostomidae
Macrotus californicus Common name: California
leaf-nosed bat
Leaf nose, big ears Arid areas in S. Cal. (the
most northern member of
the Phyllostomidae)
Caves and mines
Skin: leaf nose, light chocolate color, large ears
Skull: upper molars with distinct W shape
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Family Vespertilionidae
Antrozous pallidus Common name: Pallid
bat
Pallidus: pale, cave Long and wide ears
Rocky, montainous or
open, lowland areas
Throughout Cal.
Skin: medium size, buffy or sand color, long ears
Skull: 1 pair upper incisors, 4 pairs upper cheek
teeth
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Family Vespertilionidae
Antrozous pallidus
Skin: medium size,
buffy or sand color,lon ears
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Family Vespertilionidae
Corynorhinus townsendii Common name:
Townsends big-eared bat
Corynorhinus = club nose
two large lumps on thesnout
Throughout Cal.
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Family Vespertilionidae
Corynorhinus townsendii Skin: medium sized, light brown,
long ears, joined ears
Skull: 2 pairs upper incisors, 5
pairs upper cheek teeth, 6 pairs
lower cheek teeth
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Family Vespertilionidae
Eptesicus fuscus Common name: Big
brown bat
Eptesicus = house flier Fuscus = dark color
Cities, towns, and rural
areas
Statewide distribution
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Family Vespertilionidae
Eptesicus fuscus Skin: brown, larger
Skull: 2 pairs upper
incisors, 4 pairs uppercheek teeth
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Family Vespertillionidae
Euderma maculatum Common name: Spotted
bat
Euderma = nice skin Maculatum = spot
White dorsal spots
Wide variety of habitats
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Family Vespertillionidae
Euderma maculatum Skin: black, 3 large
dorsal spots (white)
Skull: 2/2 1/1 2/2 3/3
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Family Vespertilionidae
Lasionycteris noctivagans Common name: Silver-haired bat
Noctivagans = night
wanderer
silver-tipped hair
Temperate hardwoods
Roost in trees
N. Cal.
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Family Vespertilionidae
Lasionycteris noctivagans Skin: dark brown with
white-tipped hairs
Skull: 2 pairs upperincisors, 5 pairs of
upper cheek teeth
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Family Vespertilionidae
Lasiurus blossevillii
Common name: Red
bat
Blossevillii = hairy tail,
shaggy Roost in trees
streamside habitats
Statewide
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Family Vespertilionidae
Lasiurus cinereus Common name: Hoary
bat
Cinereus = grey, ash
Yellow collar, hairs
with frosted tips
Wooded areas
Statewide
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Family Vespertilionidae
Myotis spp. Sharp thin triangular
tragus
Small size Generalist insectivores
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Family Vespertilionidae
Myotis californicus Common name:
California myotis
Statewide distribution General habitat
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Family Vespertilionidae
Myotis evotis Common name: Long-
eared myotis
Most commonly inmixed coniferous
forests in montane
area
Statewide
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Family Vespertilionidae
Myotis lucifugus Common name: Little
brown bat
Very abundant acrossUSA
Roost mainly in
buildings
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Family Vespertilionidae
Myotis yumanensis Common name: Yuma
myotis
Statewide distribution More closely
associated with water
than any other N.A. bat
species
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Family Vespertilionidae
Parastrellus hesperus Common name:
Western pipistrelle
Yellowish pelage Statewide
most abundant N.A.
bats found in deserts
Blunt rounded tragus
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Lab Overview: Cetacea
2 suborders, 6 families, 6 species
Odontoceti
Delphinidae
Orcinus orca
Phocoenidae
Phocoena phocoena
Physeteridae
Physeter catodon
Mysticeti
Balaenidae Eubalaena glacialis
Balaenopteridae
Balaenoptera sp.
Eschrichtiidae
Eschrichtius robustus
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Family Delphinidae
Orcinus orca Common name: Killer
whale
Coast of Cal.
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Family Phocoenidae
Phocoena phocoena Common name:
Harbor porpoise
Blunt nose with nobeaks
Coast of N. Cal.
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Family Physeteridae
Physeter catodon Common name: Sperm
whale
Coast of Cal. Endangered
http://marinebio.org/species.asp?id=190 -
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Family Balaenidae
Eubalaena glacialis Common name:
Northern right whale
Large head, withoutdorsal fin
Coast of Cal.
Endangered
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Family Balaenopteridae
Balaenoptera spp. Common names: Blue
whale, Sei whale, Fin
whale, Minke whale
Longitudinal grooves
in throat
With dorsal fin
Coastal Cal.
Mostly endangered
Balaenoptera acutorostrata
Mi k h l
http://marinebio.org/species.asp?id=230 -
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Minke whale
Balaenoptera physalisFin whale
Balaenoptera musculus
Bl h l
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Balaenoptera borealis
Sei whale
Blue whale
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Family Eschrichtiidae
Eschrichtius robustus
Common name: Gray
whale
Mottled gray color
Coastal Cal.