Pfeiffer Nature Center & Foundation » tadpoles

Tadpole Update

Peg Cherre — Tue, 30 Jun 2009 12:02:40 +0000

6/30 Update: Dr. Peter Ducey from SUNY Cortland graciously responded to our request for tadpole ID, indicating that likely candidates are wood frogs and american toads. I’m quite sure they’re not toads due to the shapes of the egg masses, so we’re left with wood frogs, one of my initial guesses. I found a site with a photo of a wood frog tadpole that confirms this. (Try not to think about how he got that picture.)

I took Kenton & Rebecca’s suggestion, and this morning captured a few tadpoles in a clear plastic container. Again. For the third time. I carried them to my sugar house, where it’s nice and dark.

And then back out into the early morning sunshine.

It’s now perfectly clear – those tadpoles are indeed iridescent, not luminescent.

I STILL don’t know what kind of frogs they’ll turn into, however, so still looking for your information.

by Peg Cherre, Executive Director

Tadpole Tales

Peg Cherre — Sat, 20 Jun 2009 00:05:02 +0000

Tadpoles - captured momentarily for this photo opp

There’s a ditch near my house that is home to MANY tadpoles. I stop and watch them every day on my walk. Earlier in the season I would have told you that they were probably either wood frog or peeper tadpoles since I saw both of those little spring singers in that ditch, but I’ve long since changed my mind.

Why? I think these little swimmers are too big as tadpoles to grow into those small frogs. Also, they’ve been in the tadpole stage since early May, and they’ve only just begun to sprout the smallest of hind legs in the last few days. Although my National Audubon Society Field Guide to Reptiles & Amphibians doesn’t give me information about tadpoles, I think this is too long for wood frogs and peepers.

I’ve worried about them several times, when the water in that ditch was dwindling, but they’ve lucked out each time with a nice rain.

Most amazing of all is the visual for these spermy-looking critters. I first noticed it on my visit to the ditch in late May. It was also late in the afternoon – on my after-work walk with my dog. Some of the tadpoles were swimming up to the surface of the water — to eat, I assumed — and when they did, their little undersides were luminous! They were glowing orange! To me they looked much as bright and clear as the little orange nightlight I have near my bathroom.

Tadpoles glowing in the ditch

Well, I ran home and got my camera and tried to capture this amazing sight. Mostly I got nothing usable — this was the best I could do that afternoon.

I did an online search for bioluminescent tadpoles, and the only reference I found was for a frog that lives out west somewhere. I did find one reference that said that wood frog tadpoles were iridescent.

So I kept visiting the ditch daily, trying to figure out if what I was seeing was iridescence or luminescence. I couldn’t decide. So one day I captured some in a clear plastic container and drove them a few miles to my friend’s house. It was a dreary, rainy day, and the little guys were understandably more than a little freaked out by their kidnapping and transport. We looked at them for a bit and couldn’t decide, so I drove them back home and put them back in their ditch. (I’m guessing they had some great stories to tell their friends, but that they weren’t believed.)

Tadpoles aglow in the dish

Then today I got the brainstorm to go back to the ditch with the plastic container and my camera. If I could hold the plastic container up in the air with one hand and aim and focus the camera on the bottom of the container with the other, maybe I could capture their light. Although this photo isn’t wonderful and their color looks much more white than orange, I think you’ll get the idea that these are some pretty unusual tadpoles, indeed.

I am truly hoping that someone who reads this post will know about these tadpoles, and can fill me in. Please post a comment and give me information!

by Peg Cherre, Executive Director

Young Love

Peg Cherre — Tue, 05 May 2009 18:28:45 +0000

It’s spring, and a young man’s fancy turns to love. So does a young hawk’s, a young newt’s, a young chipmunk’s, a young…well, you get the picture.

Last month I couldn’t sit on my porch or take a walk without feeling like I should be averting my eyes. Birds, salamanders, you name it, they were all in the throes of passion. Or attempting to be. Every creature was intent on replicating itself, of passing on its genes to its progeny, ensuring that the species would continue.

Many of those eggs have now hatched.

The ditch near my house is home to wood frog tadpoles that I enjoy watching getting bigger every day. But if we don’t get some continuing rain, those babies will die before they grow legs and leave the water. In dry springs, my kids always wanted to scoop them up and move them someplace wetter. They really didn’t understand, or care about, my lessons on how life works, survival of the fittest, and all that rot. Me, if the water starts drying up, I make it a point not to stop and look; although I won’t interfere, I find it too sad to watch nature take its course.

Phoebes nest under my porch every year. I get to watch them as they make their never-ending rounds of my yard, snapping up all manner of flying things to feed their hungry babes. I find it amazing that I can often hear a quick “snap” when their beaks close on a meal. I can only imagine how hard that beak has to close to make a noise that’s audible to me many feet away!

I could go on about young love and young life, but I’d rather hear what YOU have to say about it! Leave me comments!

Peg Cherre, Nature Center Director