Pickerel Frog
Rana palustris
Tioga County, NY
Identification- 1-3 in (2.5-7.5 cm) Slimy skinned, tan to greenish
with parallel rows of squarish blotches running the back. The dorsolateral
folds are yellow and there is a light line on the upper jaw. The belly
is white, but the undersurfaces of the hind legs are bright yellow or orange.
Voice- Paired vocal pouches. The call is
a low guttural snore lasting 1-2 seconds. Males often call while completely
submerged.
Similar Species- Leopard
Frogs have distinctly circular spots. Although the spots of the Pickerel
Frog sometimes have rounded edges, they are square or rectangular and definitely
not circular. Leopard Frogs have no yellow
or orange under the hind legs.
Range- Pickerel Frogs are found throughout the range covered.
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Habitat- Prefers slow moving water with abundant vegetation. Marshes, streams, rivers, lakes, and ponds are frequented by this species. Pickerel Frogs wander far from water during the non-breeding months.
Reproduction- Breeds March through May. Males call from shallow water and attract females. Amplexus occurs and the female attaches a mass of 2-3,000 eggs to stalks of vegetation. Depending on the temperature, larvae emerge a few days to a few weeks later. Transformation takes place July to August, 2.5-3 months after hatching.
General Characteristics-
This frog secretes a substance from its skin that is toxic to many
predators. The secretions are distasteful and noxious. These secretions
have been known to kill other species housed with Pickerel Frogs so separate
accommodations are necessary. The species is very fast and when startled
it attempts to escape with a series of quick, erratic leaps. Becuase
of this they can be difficult to capture. Pickerel Frogs are the most common
spotted frog in some locations, but are absent from many areas where Leopard
Frogs are found. At other localities Leopard
Frogs and Pickerel Frogs exist side by side. Scientists are not clear
on the competitive relationship between these two species. Pickerel
frogs get their name because they are a preferred bait for fisherman after
Chain Pickerel.
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