| Jefferson Salamander ..... ( Ambystoma
jeffersonianum )
Jefferson Salamander Photograph Courtesy
of © The Vernal Pool Association
The Jefferson salamander was first discovered in the 1800's in
Pennsylvania on the grounds of Jefferson College, named after
President Thomas Jefferson, who was known as an avid naturalist.
The Jefferson salamander was last found in 2000 in the Jefferson
forest (pure coincidence) at the headwaters of the Rouge River on
the Oak Ridges Moraine by Natalie Helferty, a local biologist.
This population is a range extension for the species,
which has never been found this far north-east before.
The Jefferson salamander is a nationally 'Threatened' species
with only 13 known populations in Canada, all in Ontario along
the Lake Erie shoreline to the Oak Ridges Moraine. It is found as
far south and west as Kentucky in the United States, being a
southern 'Carolinian' species.
The Jefferson salamander is found in large, mature deciduous
forests with well-drained, rich soils that are within about 1 km
of isolated breeding wetlands that are fish-free. It is the most
sensitive of all amphibian and reptile species to development
impacts, including farming, housing and roads. A population of
Jefferson salamanders requires intact habitat of about 1000 acres
(400 hectares) in order to survive long-term ..... NH
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