Note: This is part two of a two part post. If you’d like to see part one you can scroll down to it.
If you walk long enough on the old abandoned road through Yale forest in Swanzey you’ll come to an open swampy area that was once home to beavers. Beavers will move into a place and eat all the trees and then move on. Their pond will eventually drain and new trees will start to grow, and they will move back again to repeat the cycle. I’ve read that it takes about thirty years to go once around the cycle and this area looks as if it’s in the beaver pond draining stage. Now trees need to grow so the beavers will come back. The above photo shows the old dam which isn’t really holding back any water now, judging by the force of the stream that runs through here.
The height of the embankment in the background of this photo shows that the beavers chose a natural bowl shaped area for their pond, but the grasses in the foreground show that the pond is now mostly dry.
This is another look at the dam. It was long but not real high; maybe 4 feet. I’ve seen them high enough to be taller than I am, holding back an incredible amount of water. The biggest beaver dam on record is one in Wood Buffalo National Park in Alberta, Canada that is 2,790 feet long and can be seen in satellite footage from Google Earth. Explorer Rob Mark was the first human to reach it in July of 2014. I hope I’m never near a beaver dam if it lets go.
There was plenty of evidence of beaver activity but it happened a while ago. This beaver stump is beginning to blacken, as were all the others I saw.
Tree cutters of a different kind were also in evidence. I don’t know why they left these logs there. The wood must have been sub-par in some way.
A couple of the logs showed signs of fungus infection. This one had signs of what looked like it might have been blue stain fungus (Ophiostoma,) which is usually transmitted by bark beetles. It is also called sap stain because it discolors the sapwood, along with any boards that are cut from it. This lowers the value of the log considerably; possibly enough so it wasn’t even worth the fuel it would take to truck it to the mill yard.
There was plenty of evidence of bark beetles on pine limbs. Not only do they transmit disease, if they chew one of their channels completely around a branch it will die from being girdled.
Another log had claw marks on it. They puzzled me because the snow was ice covered and too hard for an animal to have left prints. I’m guessing raccoon or maybe a bobcat; they were quite small, but bigger than a housecat would have left.
Clubmosses held their heads up above the snow. This one looked like Lycopodium obscurum, commonly called ground pine, even though it has nothing to do with pines. It is also called rare clubmoss though I don’t know why, because it is everywhere.
The evergreen ferns are showing great fortitude this year. When I see one this way it looks so delicate but the snow and ice surrounding it tell a story of unsuspected toughness. They’re very beautiful against the white snow and add so much to the winter landscape. I’m glad they’re so tough.
Even dead ferns add interest to the winter landscape. I like seeing their deep reddish brown color against the lighter tans of the grasses. It’s a simple thing that brings joy and puts a spring in my step.
Pixie cup lichens (Cladonia asahinae) poked up out of the hair cap moss like tiny golf tees. I was hoping they would be fruiting so I could show you how they reproduce, but not yet. They, like many lichens, produce spores in the winter but it must happen later on. I’m not very good at keeping track of such things.
Striped maple (Acer pensylvanicum) has striped bark but I’ve never seen it come with blue stripes and I can’t find any reference to blue stripes on line. They are usually a cream / white color but will eventually disappear as the tree ages. I took this photo to show how dark the reddish brown bark of striped maple is when compared with other trees, such as the one on the right. This maple often grows in the form of a shrub here and might reach 15 feet tall on a good day. Another name for it is whistle wood because whistles are easily carved from the wood of its branches.
I knew that the buds and young twigs of striped maple were often tomato red but I’ve never seen spots on a bud before. This isn’t a very sharp photo but at least you can see the spots.
It looked like someone had embroidered this brocade moss (Hypnum imponens) on the log it grew on, and that’s how it comes by its common name. It’s a shiny, feathery moss that forms large mats, usually on wood but sometimes on soil. I’m not sure what the small blue bits are. It must have been ice reflecting the blue of the sky. I didn’t see them in person so I’m surprised that the camera did.
I was expecting to see some turkey tail fungi (Trametes versicolor) but this turkey feather was a surprise. There is a story behind it, but it’s one I’ll never know.
I was also hoping to see some crystal clear ice but it had been snowed on and re-froze with a textured surface more like pebbled glass than crystal, but I could still make out the shapes and colors of the oak leaves under it.
The ice on the stream that used to feed the beaver pond was paper thin and wind sculpted. The animals are still having an easy of time finding water but are probably having a hard time getting around on the icy, crusted snow.
A few woodland pools were ice free. They reminded me of the forest walks I’ve taken on moonlit nights when the moonlight shimmers and swims in the dark water of pools like this one. It’s something I haven’t seen in a long time but I’ve had an itch to try night time photography, so it might happen when the moon is full enough to light the way.
Some journeys take you farther from where you come from, but closer to where you belong. ~Ron Franscell
Thanks for stopping in.
Love the shot of clubmosses! Perfect postcard for winter in NH!!
Thanks Martha!
What a lovely walk, although I’m not sure I’d fancy it in the dark.
Sometimes a full moon can make it look like daytime. That’s a great time to walk in the woods, but it’s usually in a place I know well.
always love your work and observations. ‘blue” stripped maple only happens in years with national elections! ha!
regards-chris
Thanks Chris. Yes. maybe the blue stripes were there as a reminder of what party to vote for!
Amazing how you come up with one great post after another. Beaver dams are fascinating, but I was unaware of the life cycle – interesting. Your description of the largest dam sure does shame the biggest one I’ve ever seen!
It seems that beetle infestation is everywhere. No matter what state we seem to be in (we camp a lot), all the trees seem to be scarred with beetle tracks, and much of the firewood we purchase is also marked. Maybe this is nothing really recent, but it sure does catch my attention these days.
Love that blue-striped maple! Nice find.
On Sat, Jan 16, 2016 at 4:15 AM, New Hampshire Garden Solutions wrote:
> New Hampshire Garden Solutions posted: “Note: This is part two of a two > part post. If you’d like to see part one you can scroll down to it. If you > walk long enough on the old abandoned road through Yale forest in Swanzey > you’ll come to an open swampy area that was once home to beavers. Beave” >
Thank you Judy. I spend a lot of time outdoors so I see a lot of nature.
That beaver dam in Canada is big and I’d love to see it!
I’m sorry to hear that you’re seeing so much bark beetle damage but I’m not really surprised. I doubt there is any real effective way to stop them.
The blue stripes on that striped maple were unusual. I’ve never seen that before!
Lots of great material, as usual. In my woodworking days I might have liked trying some of that fungus-stained wood. Might have made for some interesting projects.
Thank you. Yes, many woodworkers prize wood that has been colored by fungi and they make some beautiful things from it. Wood that isn’t any good for commercial furniture making is often just what they’re looking for.
I just have to tell you that I really enjoy all your posts. I am a newly transplanted resident of NH. I don’t remember how I came upon your blog but I have been reading it since 2013 when I got to NH. I have learned so much from you. I just love all your photos too. Thank you for the education you have given me!
Thanks very much Karen. I appreciate your taking the time to let me know you’re enjoying the blog, and I’m happy to hear that you’ve learned a few things along the way. My hope is that by reading this blog people will become more interested in nature, so I’m always glad to hear that it’s working!
I really liked the patterns in the ice, especially the “pebbled glass” image!
Beavers are incredible builders, that’s for sure. As a trout fisherman, I have a love/hate attitude towards them. When they first dam a creek, the trout grow very large in the pond behind the dam. However, as time goes on and the pond begins to fill with silt, the trout all die off, and the warmer water from the pond can affect the trout downstream from the dam. On the other hand, when the beavers move on and the water level drops, all that silt eventually becomes soil that allows plants to grow in an area where they otherwise wouldn’t. Of course we see it through the prism of our lifetime, and not over thousands of years, which is the way that nature functions.
Thanks Jerry! It seems like hunters, fishermen and hikers all have a love / hate relationship with beavers! I’ve read that it takes 30 years for the pond area to become forest again once the beavers leave but that seems awfully quick to me. I suppose young trees would grow in that time but nothing real big. I’d think it would be closer to 40-50 years. I’ve been to places that were fields when I was a boy and which are now forests so it is surprising how fast it can happen.
A very enjoyable conclusion to your Yale Forest walk. I loved the reflections in the last photo and the ground pine photo too As Mr T says, beavers may be re-introduced into Scotland again very soon. I am not so sure that beaver re-introduction is such a good idea looking at the large amount of wood they cut down for their dams!
Thank you Clare. I liked those tree reflections too.
Yes, beavers certainly do cut down a lot of trees! I’ve been in places where the logs were so thick and tangled you couldn’t get through. But they also do a lot of good for the environment, so it’s a double edged sword when you’re talking about re-introduction I would think. I’d have a hard time deciding which was best even though I’ve seen beaver activity all my life.
We haven’t had beavers in this country for 500 years and it will take a bit of getting used to once they are established. Some have been illegally released in SW England and are doing very well and some have been released, legally this time, on one of the Scottish islands and they are being watched carefully by the authorities to see how they adapt and how the islanders cope too. We will see what happens 🙂
5oo hundred years is a long time! I’m sure some people won’t know what to do once they see beavers damming up streams. Usually you don’t really have to do anything but just let them be. That’s provided they aren’t flooding roads or someone’s garden. Or eating their prized fruit trees, which I’ve also seen them do.
It’s going to be a very interesting experiment no doubt and I’ll have to try to remember to check in and see how it’s going occasionally.
As you say, it’s going to be really interesting. A close friend lives near the beavers that have ‘turned-up’ in Devon in SW England. She will keep me posted on local reactions!
That would make an exceedingly interesting blog post!
It would!
The pictures of the beaver activity reminded me that I need to hike up a stream near here and see what they have been up to in that area. I loved that photo of the ground pine!
Thanks Montucky! If I know beavers they’ve been as busy there as they are here. They just don’t stop!
Thanks for the walk – thoroughly enjoyed it!
You’re welcome, I’m glad you did!
They are trying to reintroduce beavers to some parts of Scotland at the moment in the face of considerable opposition.
That’s something I’d hope they thought long and hard about. Beavers can cause a lot of damage by flooding roads and property.
On the other hand, they’re an important part of the whole puzzle and their ponds attract a lot of birds and wildlife of all kinds.
That is just the sort of discussion that is going on.
It’s likely to be a prolonged discussion.
The “skill” shown in the construction of a beaver dam is truly amazing.
Yes, I agree. You wouldn’t think a pile of sticks and some mud could hold back as much water as they do.
I hadn’t heard of striped maples being called whistle wood before. We have plenty of other names for it and will mention your comment on future guided walks. Thanks for another delightful post.
You’re welcome, and thank you. I hadn’t heard that about striped maple either until I was researching this post. I’m guessing that the wood must have pith that is easily removed, much like elderberry. I’ll have to try it and see.
I’m always amazed by the size of some of the trees beavers take down. Last year I found a new beaver pond in New Boston. The sheer number of trees they had fallen was mind boggling. Sounds as though you really enjoyed your walk!
I did enjoy it, it was a lot of fun.
Yes, a small group of beavers can take down a lot of trees! I’ve seen some felled trees that were pretty big too. I’m always surprised that more trees don’t fall on beavers, but they’re clever animals.
You had some wonderful patterns in today’s post especially the ones made by the bark beetles and the club mosses.
Thank you Susan. It’s interesting how the same patterns appear in nature over and over. I always like seeing them.