Anybody want to see more pics of the frogs?
I was surveying during a die-off in 2002. I think it got up to about 25% and there were several factors involved including but not limited to: draught, possible viral infections, fungal infections, secondary bacterial infections, UV-B, heavy metals, and possible teratogens in the water. The frog on the right is probably suffering from all of the above. The frog on the left has been cleared and stained to demonstrate that one of the "arms" never developed. There would at least be a vestige of bone there had the limb been bitten off and besides no frog could survive and heal (with NO scarring) having a whole limb torn fully out of the abdomen like that.
I
REALLY REALLY encourage people to get involved and go out and do surveys.
ANYBODY can do a survey, weather it be a calling survey, which would be good at this time of year, to asses species diversity in your area or a health survey, which would be better in say June for the northern part of N. America. All you have to do is drive around and write down the frogs you hear calling or take a group out for the day and catch as many frogs as you can and record thier size, species, and any malformations they might have. This is a
GREAT activity for kids and families! I did these when I was a kid, it will help kids, even little kids, learn about ecology and the environment and instill in them values regarding environmental stewardship.
PLEASE get involved! If you ever collect a malformed frog yourself you will feel something very powerful when you hold that little frog in your hand and see it with your own eyes. Even if you're not a frog person please spread the word because similar things are happening to other herps all around the world.
Here are a couple of links for more info or you can PM me or ask here:
http://www.open.ac.uk/daptf/index.htm
http://frogweb.nbii.gov/narcam/
http://www.mp2-pwrc.usgs.gov/naamp/
For those in Canada:
http://www.cnf.ca/frog/id.html
Here's a map of places where malformation and decline have been reported in the N. America:
http://www.npwrc.usgs.gov/narcam/reports/reports.htm