The Spring Peeper is one of three species of amphibians found on Block Island.
Northern Spring Peepers range throughout eastern
and central North America; including southern
portions of Canada, from Manitoba to Newfoundland,
and extending as far south as northern Georgia
and eastern Texas.
Spring Peepers are rarely seen, but starting in mid-March are often heard, and are considered by many to be the first sign of spring. Only males, often in choral groups, emit the loud peeping call, which establishes a territory and attracts females. On warm spring evenings, the concentrations of calling males around ponds and wetlands can rise to a loud din. Whereas vocalizing males in late summer and early autumn (after the breeding season) can be heard as individuals or small groups.
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To hear Spring
Peepers, take an evening walk anywhere
near Block Island's many ponds and wetlands
from mid-March to late summer, or just
click
here. |
Spring Peepers:
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are
about 1 inch in length. |
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have webbed hind feet
and toe pads on their front feet. |
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show great variation
in color; they may be observed as dull
olive-grey, tan, brown, yellowish-gold,
or even pinkish. |
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have an X mark on their
back, which is often incomplete. This
X mark is the origin of the species
name crucifer, meaning “one
who bears a cross”. |

Spring Peepers, once grouped with Tree frogs because of their toe pads and superior vertical climbing abilities, are now considered to be more closely related to Chorus frogs. This change in taxonomy, which matches their powerful vocal attributes, has been confirmed by DNA analysis.
Spring Peeper facts:
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Spring
Peepers can live in a variety of habitats
from vernal ponds to moist woodland
leaf litter. |
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Spring Peepers eat small
invertebrates such as spiders, mites,
sow bugs, insect larvae and worms. |
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Spring Peepers hibernate
in the winter, tucked in and under leaf
litter, vegetation, and just below mud
and soil surfaces and can be frozen
for up to 2 weeks without detrimental
effects. |
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Spring Peepers lay their
jelly-coated eggs singly under vegetation
on pond bottoms. In less then one week,
these eggs will hatch into tadpoles,
and within 90 to 100 days will metamorphose
into tailless adult frogs. |
Although Spring Peepers are the most common
frogs on Block Island and are thought to be
the most abundant throughout southern New
England, they are highly sensitive to water
quality changes. Sudden decreases in the abundance
or health of Spring Peepers may indicate negative
changes to the environment. Spring Peepers
have been shown to be negatively affected
by acid rain.
To be a citizen scientist and help track important
information about Spring Peepers and other
amphibians go to:
http://www.nwf.org/frogwatchusa/index.cfm
To learn more about Spring Peepers, check out these resources that were used to prepare this page:
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