Showing posts with label rana sylvatica. Show all posts
Showing posts with label rana sylvatica. Show all posts

Sunday, March 21, 2010

Frog Eggs





Second day of spring. I just walked back from a visit to the pond at the top of my hill. For those of you following the amphibian progress up there, here's today's (3/21/10) photo of the sunlit clusters of thousands of eggs. The party is still going strong ... wild and noisy. Harper & Row's Complete Field Guide to North American Wildlife describes what I referred to as the frogs' "chuckle-grunt" as "A short rasping clacking almost like clucking (not quacking) sound of domestic ducks." To me, their combined effort still sounds like a TV laugh track. Apparently they call only during breeding season, which begins very early in the spring, "even before ice has completely melted." Their range extends north of the Arctic Circle. Rana sylvatica doesn't hibernate under the water, but in logs, stumps, and under stones.

The top two photos of frogs are from their arrival day, St. Patrick's Day, 3/17/10. There were so many photogenic amphibians on hand! Just click on the images to enlarge the photographs. (Then you can admire the frogs' "prominent light dorsolateral folds.") See previous posts for more on the pond. You can do a blog search for the word "pond" and see what comes up as well. I think I am going to check that out right now .... Okay, I'm back. I did the "pond" search of the blog -- how clear it is how much that place means to me. And since the frogs' 2009 arrival comes up, it was fun to revisit those posts and see how closely they correspond with this year's observations.

Saturday, March 28, 2009

Upside-Down Trees

This afternoon the southern edge of the pond held clusters of frog eggs. They nestled like black-eyed jewels in the rippling branches of upside-down trees.

Click on image to enlarge. If you look closely, you'll see the black dots inside the eggs, just below the surface of the water (lower left).

Thursday, March 19, 2009

Arrival

Just now, walking up past the pond at dusk, we heard the wood frogs calling. We followed the chorus in. Silence. Then, here and there, the song began again. Overnight, the last of the ice melted, and the frogs are mating. Tomorrow: spring.

The photograph of fungi was taken up at the pond. Click on image to enlarge.

Wednesday, March 18, 2009

Cloud Between Two Worlds

Yesterday there was still ice on the pond up the hill, floating like a cloud between two worlds, like a veil between the shifting seasons. Not a wood frog to be found. Only the silent guardian rock, beached like a sailboat at the edge.

Click on image to enlarge.