frogs and toads. our frog objectives identification
TRANSCRIPT
Frogs and Toads
By: Makayla Hunt
Our Frog Objectives
Identification
Calls
Endangered Frogs
Threatened / Candidate Frogs
Identification
Seven Frogs
One Toad
Bull Frog
8 in. 1.5 lbs
Shallow water: Freshwater ponds and lakes
Nocturnal Predators: Insects, mice , fish, birds, snakes
Camouflage
Bull Frog
•Green or Gray-
Brown
•Brown Spots
•Circular Eardrums
called Tympanum
on both sides of
their heads
Bullfrog
Eastern American Toad
Size
• 43.5 to 26.3 Grams
• 2-3.5 in.
Food
• Insects• Slugs• Worms
Poisonous
• Their warts secret bufotoxin (a poison)
Live
• Near water
• Burrow in cool loose soil
Eastern American Toad
•Shades of brown•Can vary from olive to tan to gray to red
•Rough shin
•Chest and
throats are
cream or white
with spots
•Warty
Eastern American Toad
Eastern Gray Treefrog
2 3/8 inches
Large toe pads
Wooded habitats
Insects and invertebrat
es
Eastern Gray Treefrog
•Can change
form bright
green to gray
•Pattern of their
backs bordered
by black
•White belly
•Inside of legs
are bright
orange or
yellow
Eastern Gray Treefrog
Pickerel FrogFo
od Insects
EarthwormsInvertebrates A
dapta
tion Skin
secretions are toxic to other frogs and cause skin irritation
Habit
at Mainland
(urban and rural areas)Near ponds
Siz
e 27.5 to 12.1 grams1.75 to 3.5 inches
Pickerel Frog
•Rectangular
spots
•Unbroken
dorsolateral
ridges
•Orange or
yellow flash
pattern on the
inside of their
hind legs
Pickerel Frog
Northern Green Frog
Food• Snakes• Lizards• Other frogs
Size• 2 ¼ To 4 ¼ inches
Habitat• Freshwater
marshes, shallow ponds, small streams
Adaptations• Tadpoles are
“slightly” toxic
Northern Green Frog
•Green or bronze
to olive-brown in
color
•Parallel
ridges/folds that
extend 2/3 of
the way down its
back
(dorsolateral
ridges)
•Breeding males
can have yellow
throats
Northern Green Frog
Northern Leopard Frog
Size
3 to 5 Inches
Habitat
Ponds, swamps, marshes,
slow streams
Adaptation
Powerful swimmer
s (webbed
feet)
Food
Beetles, ants, flies,
worms, small frogs
Northern Leopard Frog
•Green to brown dorsal
color
•Large dark circular spots
on their backs, sides and
legs•Spots are bordered by a lighter ring
•Parallel, pinkish,
dorsolateral folds that run
down their backs
•Pale stripe from their
nostrils to their shoulders
Northern Leopard Frog
Northern Spring Peeper
Size
0.11 to 0.18
Ounces
1 to 1.5 inches
Adaptation
Large toe pads for climbing
Food
Nocturnal Carnivores
Insects, spiders,
ants
Habitat
Marshes, ponds,
swamps
Prefer loose
debris on the forest
floor
Northern Spring Peeper
•Tan or brown•Can be olive green and gray
•An X on their
dorsum
•Females are
lighter in color
•Males have
dark throats
Northern Spring Peeper
Wood FrogSize•1 to 3 inches
Adaptation•Can sustain a body temperature
as low as -6 degrees Celsius
Habitat•Tundra, wet grasslands, moist
woodlands•Vernal pools during the breeding
season
Food•Insects•Invertebrates
Wood Frog
•Black masked
frog
•Red, yellow,
gray, and brown
in color
•Flat body,
pointed head,
webbed feet,
un-webbed
distal toe joints
•Smooth, moist
skin
Wood Frog
Frog Calls
Alarm calls
Scare away predators
Attract a mate
Advertisement calls
Challenge other frogs (territory)
Endangered Frogs and Toad
3 Frogs
1 Toad
New Jersey Chorus FrogSize
• 0.75 to 1.5 inches
Adaptation
• Camouflage
Habitat
• Shallow pools along streams, ditches, canals• Dry fields• Forest swamps• Wet meadows
Food
• Eggs and larvae of amphibians
New Jersey Chorus Frog
•Olive, pale green,
dull gray, light and
dark brown in color
•3 broad dark brown
or black dorsal
stripes•Middle stripe forks
•Underside is off-
white with
occasional spots
•Triangular mark
between eyes
Southern Leopard Frog
• Up to 5 inches
Size
• They can leap several feet to escape predators
Adaptation
• Shallow water: Lakes, marshes, streams
Habitat
• Nocturnal: Insects, earthworms, invertebrates
Food
Southern Leopard Frog
•Green and brown
on top with black
spots on their
backs and sides
•White belly
•Two light
dorsolateral ridges
down their backs
•Strips on their
hind legs
Northern Cricket Frog
Habitat
•Along sunny, muddy, marshy gently sloping edges of ponds, reservoirs, streams, pastures
Adaptation
•They jump up to 3 ft in zigzag motions
Size
•0.75 to 1.5 inches
Food
•Invertebrates, beetles, larvae, flies
Northern Cricket Frog
•Triangular mark
on head
•Dorsal is gray,
or light brown
with dark band
on legs
•White bar from
eye to base of
foreleg
•Bumpy skin
Eastern Spadefoot Toad
•1.75 to 3.25 inches
Size
•Fields, farmland, woodlands with sandy or loose soil
•Breed in vernal pools or flooded fields
Habitat
•Hard to find: Hide in burrows
Adaptation
•Flies, crickets, caterpillars, snails
Food
Eastern Spadefoot Toad
•Smooth skin with tinny
warts
•Olive to brown to black in
color
•2 irregular yellow stripes
down their backs
•Vertical pupils
•Black, sharp-edged,
spade-like projection on
the underside of their feet
Threatened / Candidate Frogs
NONE
Activity
Name three frogs
One fact about each
Name one endangered frog
Why do you think it is endangered?
Can you identify these frogs from their calls?