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Amphibians from the Bruce Peninsula2_CK

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Amphibians from the Bruce
What does it take to be an
• Four legged vertebrates
• Do not have amniotic eggs
• Ectothermic (body heat regulated
by external environment)
• Spend part of their time on land,
part in water
• Breathe through lungs, gills, or
Northern Leopard Frog
(Rana pipiens)
пѓ� Green to light brown with large
dark, circular black spots with
light outlines on back, the
dorsal lateral ridges are lighter
in colour (2 lines running down
� Length: 5 – 9 cm
пѓ� Males make a short snore-like
call from water during spring
and summer
пѓ� Live in ponds, streams, lakes,
swamps, marshes. Any water
with lots of aquatic vegetation
пѓ� Special Concern in northern
areas of Ontario (abundant in
southern Ontario)
Midland Chorus Frog
(Pseudacris triseriata triseriata)
пѓ� Brown with 3 dark broken stripes running
down their back
пѓ� Two toe discs
пѓ� Also known as Striped Chorus Frog, or Western
Chorus Frog
пѓ� Length: 3 cm
пѓ� Habitat: Sunny, shallow swamps, pools
� Known for their “repeated rasping trill”
Teraploid Gray Tree Frog
(Hyla versicolor)
пѓ� Has the ability to change colour, from greenish-gray
to gray-black (depending on the environment)
пѓ� Has bright yellow or orange under belly, shown when
the frog hops away
� Length: 3 – 6 cm
пѓ� Habitat: Trees and shrubs close to water
пѓ� The frogs skin is bumpy (almost toad like)
пѓ� Has 4 sets of chromosomes (most animals have 2
American Toad
(Bufo americanus)
пѓ� Brownish, reddish, and olive
пѓ� Body covered with brown
bumps (warts) some of
which are outlined with dark
пѓ� Behind each eye is a kidney
shaped poison gland
� Length: 5 – 9 cm
пѓ� Habitat: Gardens, forests,
yards. Most terrestrial of all
Ontario Amphibians (can
inhabit almost anywhere
that has moisture and
Eastern/Red Spotted Newt
(Notophthalmus viridescens)
пѓ� Yellowish to greenish brown (aquatic stage),
orange to reddish brown (terrestrial stage)
with black bordered red spots and back and
solid black spots on belly and legs
пѓ� Length: 7-10 cm
пѓ� Eastern newts eat a variety of foods such as
insects, small mollusks, and crustaceans,
young amphibians, and frog eggs
Yellow Spotted Salamander
(Ambystoma maculatum)
пѓ� Black with yellow spots from head to tail
� Length: 15 – 25 cm
пѓ� Habitats: During spring they reside in woodland
ponds, while in summer and winter they can be
found in moist soils or fallen logs
пѓ� Habitat loss and increased use of pesticide are
infringing on their populations
Spring Salamander
(Gyrinophilus porphyriticus)
Brownish-pink to yellowish-brown
Thick body from head to tail
Length: 10 – 22 cm
Habitat: Live in cool, moist environments and
clear water sources (high in oxygen)
пѓ� Absorbs oxygen through its skin, as well as
through membranes in the mouth and throat
пѓ� Presumed extirpated because of deforestation
(none observed in the area in the last 100 years)
Further Sources
Ontario Nature – probably the best source for information
about Ontario’s
Frog Watch – excellent site for information about public
monitoring of frogs (citizen science)
Toronto Zoo – very good general information on
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