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Jefferson Salamander Ambystoma jeffersonianum

 

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Jefferson Salamander
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Family: Ambystomidae, Mole Salamanders view all from this family



Description Dark gray to brown, lighter on its anterior. Long and slender with well developed lungs.


Dimensions Length: 11-18 cm (3/4-81/4")


Breeding Breeds early spring. 5-60 eggs in a clutch, attached to submerged twigs and other foliage. Eggs can hatch within 15 days. Larvae grow 3-8 times their birth size in 2-4 months after hatching.


Habitat Logs, leaf litter ad underbush in damp conditions. During dry & freezing conditions they burrow underground.


Range Ontario to New England and New York through to Virginia and Indiana. Hybrid species in Nova Scotia through New Jersey to the Great Lakes region.


Discussion Nocturnal. Blue-spotted Jefferson Salamander is a hybrid between Blue Spotted Salamanders and the Jefferson Salamander. These are genetic anomalies with 3 chromosomes instead of 2. Female dominant, only 2% of males survive and are sterile. Male sperm only fertilises egg, but contributes no genetic material. Adults are carnivorous consuming small invertebrates. Food shortages can lead to cannibalistic behaviour. larvae eat small aquatic invertebrates.


 

 

 

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