Return to the Reptiles & Amphibians Forum | Post a Follow-Up

Rana virus out of control

Posted by Naturedeva (My Page) on
Sun, Dec 22, 13 at 20:15

In my wetland restoration project here in Upper Bucks County,PA, the rana virus is rampant. It has already killed box turtles and snakes that I found, and who knows how many I haven't found.

Also, the fatality rate on amphibian larvae, and to a lesser degree, adults, is tremendous. By my estimate to be nearly 90% of tadpoles. The ponds can be full of wood frog tadpoles starting in April, but come June, just as they're getting ready to morph into frogs, most of them disappear. They did not morph and move on to land, I paid close attention to their development, they disappeared just as they began forming back legs.

From what I can tell from my web research, there is really nothing that can be done to combat this virus. It seems to me that perhaps the green frog tadpoles, which take two warm seasons to morph, might be the main reservoir for this virus.

We can only hope, because of the high breeding rate of amphibians, that a immunity to the virus can be attained by survivors breeding with other survivors. But its certainly a different story for the slow breeding reptiles. Since the area is fenced protected because of the large deer pressure here, I'm going to try to secure the bottom so I can keep the local box turtles from reaching the ponds area. The virus can be very fast acting on reptiles. A few summers ago I saw a healthy looking box turtle escaping a scorching summer day by immersing itself in the pond. A week later I found it dead, with no apparent physical damage.
And I no longer see ANY salamanders under the rocks and logs where they previously plentiful.

Anybody have any thoughts or insights to this dreadful disease? I have a sick feeling that by maintaining these ponds I may be contributing to the problem.

Follow-Up Postings:

RE: Rana virus out of control

You also may be contributing to a possible immunity by allowing breeding to occur. The only way for an immunity to happen is for more breeding to occur. Good luck...

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Reptiles & Amphibians Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here