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Posts Tagged ‘Beaver Teeth Marks’

Last Saturday was cold but clear with wall to wall sunshine. I decided to take a walk along the Ashuelot River in Keene to see if it had frozen over and was surprised to find that it had frozen over the whole length of the distance I walked.

It looked more like a pasture than a river.

I saw some strange animal tracks on the ice but I couldn’t get close enough to find out what animal they were from. They might have been from a rabbit or squirrel.

Wool grass (Scirpus cyperinus) likes wet places and grows here and there on the riverbank. Though its common name points to a grass this plant is actually in the sedge family. It is also called bulrush. Its seeds are eaten by waterfowl and muskrats will eat its roots. Native Americans used this plant to weave mats, bags and other utilitarian objects. I like its drooping habit.

Something that sets my blood racing at this time of year is bare ground, and I’m seeing more of it wherever I go. The sun gets stronger each day and no matter how many storms we have or how cold it is the snow will melt, starting on southern exposures. You can also see in this shot how the snow on the trail had been packed down by many feet. The going was easy as long as I stayed on the trail.

There were strange looking ice formations on the surface of the river.

There was some snow built up on the bent tree that lives out here. This tree never seems to get any larger.

I thought the beavers might have finished the job they started last fall on this huge oak tree but they’ve abandoned it. Girdling means that the bark has been removed around the entire tree and since the inner bark (cambium) is what carries nutrients and moisture to the crown, a tree cannot survive without it. Anything above the girdling will die.

It really is amazing what beavers can do with their sharp teeth. From what I’ve seen no wood is too hard for them.

I saw a girdled smaller tree and I can say for certain that this was not done by a beaver. I don’t know why anyone would do this unless it was the Keene Parks and Recreation Department wanting to remove trees along the trail. Girdling has been used to remove trees for thousands of years and the Native Americans who once lived and fished in this area surely used it to clear land. Once the trees died and fell on a piece of land the brush and trunks would be burned and the resulting wood ash and whatever rotting wood was left helped to fertilize the land for farming. Girdling is still used by foresters, horticulturalists and land owners today.

I saw many trees that had fallen naturally out here. In fact I see them wherever I go and most of them are white pines and red maples.

I was stopped by the bright, orange-brown color of a blueberry branch in the sunlight. I should have gotten a shot of its small red buds as well.

The sunlight was also caught in the trees and it was so beautifully golden against the deep blue of the sky.

I saw lots of oriental bittersweet berries (Celastrus orbiculatus) still on plants, and that’s a good thing. It means the birds aren’t spreading its seeds around.

Oriental bittersweet vines are as strong as wire and don’t expand as whatever they wrap themselves around grows larger. The alder with bittersweet wrapped around it in this photo will eventually be strangled to death unless something is done.

When it gets cold dark, almost black spots appear on the bark of trees. They are really there all the time but are kind of a lighter reddish color and not quite so noticeable at other times of year when there are so many other things to see. Those who think they’ve never seen a liverwort might want to stop and take a closer look at these dark, lacy blotches because they are Frullania liverworts, one of the few liverworts that can thrive in dry places.

There are about 800 species of Frullania liverworts and many grow as epiphytes on the bark of trees and shrubs where the humidity is high. Epiphytic plants take nothing from the host plants they grow on, so this liverwort does no harm to trees. Its leaves are very small and hard to get a good photo of.

Something not quite so pretty as the frullania liverwort is the beech scale (Cryptococcus fagisuga) seen here. Excessive feeding by this scale insect causes two different fungi, Neonectria faginata and Neonectria ditissima, to produce annual cankers or blisters on the bark of the tree. The continuous formation of lesions around the tree eventually girdles it, resulting in canopy death.

You know it’s cold when pine sap turns blue, and we’ve had a cold February. It was about 25° F. (-4° C) on this day.

Yes it was cold but it was also a beautiful sunny day so I stood on the bridge for a while listening to the silence, which was broken only by birdsong and the occasional cracking of river ice. It would have been easy to lose myself and stand here for longer than I did but you have to watch that in winter because frostbite can be a possibility and once you stop moving you cool off fast.

On the way back I thought a contrail looked much like what smoke from a campfire might have looked like long ago. It wasn’t hard to imagine Native lodgings out there somewhere; archeological digs have shown Native Americans were here at least 12,000 years ago.

I decided to check on Ashuelot falls before leaving. They were all splash and foam and remained thawed for the most part.

There were some huge ice formations here and there though. This one looked like the arm and paw of a gigantic polar bear.

Above the falls I saw these strange tracks on the ice. They were big, easily as big as my hand, and I wondered if they might be moose tracks. Moose are occasionally seen in this area. They have even walked through Keene neighborhoods and down city streets. They also occasionally fall through the ice and it’s quite a job getting them back on dry land. An adult male moose can weigh over a thousand pounds.

The earth is rude, silent, incomprehensible at first; be not discouraged – keep on – there are divine things, well envelop’d; I swear to you there are divine things more beautiful than words can tell. ~Walt Whitman

Thanks for stopping in.

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