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Hi, just wondering if anybbody out there knew this. The first part should be pretty easy, the second is the real question.

What does the Jefferson Salamander cross with and what is so unusual about the offspring?

Kiley Briggs
AnuraanMan
kbreptile@yahoo.com

jefferson cross with blue spotteds creating two hybrid,all female species.... the tremblays and silvery salamanders
james

Actually all of the Hybrids that have been tested that I am aware of are all of historical origin (ie. the hybridization is not a continously ongoing affair). Also some of the populations are not just jefferson X blue spots but Jefferson x blue spots x tiger salamander or are even back crosses with the original parent stock or are even hybrids that are crossed with small mouth salamanders (jefferson x bluespot x tiger x texanum) or are other permutation of these mixes. There is a really good section in Salamanders of the United States and Canada that goes into a bunch of these hybrids and the various combinations of the crosses.
Ed

yes, i was just giving the simple answer...lol.... EK you wouldnt happen to have pics of the jeffersonum tiger ect.ect crosses would you?,... sounds very interesting

james

Here's a link:

http://home.total.net/~kaymur/salamr4g.htm
Link

Here's a sample of hybrids found migrating this Spring in NE MA

http://sharemation.com/tew/Blue Spot & hybrids.jpg

didn't know about the tiger cross. What I understand is that the Jefferson and Blue Spotted can't breed with each other anymore but the hybrids can breed with both. The hybrids are mostly female and are fertile. Most hybrids are infertile in nature but these gals have figured out how it works i guess. What I find really interesting is the while the pure Jefferson and Blue spotteds only have two chromosomes, the hybrids sometimes have three or even four. Do you have a pic of the tiger cross?

Kiley
AnuraanMan
kbreptile@yahoo.com