MTPR

trees

Whitebark pine.
Famartin (CC-BY-SA-3)

I first visited Glacier National Park in June. Though winter had only recently loosened its grip on the Crown of the Continent, there were blue skies and sunshine as I hiked up a high-elevation glacial basin. The temperature was a balmy 60 degrees.

Burnt snags in western Montana
Josh Burnham (CC-BY-NC-2)

One of my favorite places to look in the forest is up. I love the way trees frame patches of sky, and how rays of sun slide over the branches and slant into pockets of darkness. On a recent stroll through the woods near Echo lake, I found myself, as usual, looking up. I saw mostly fir and birch trees, and I took their narrow trunks and modest heights as signs of a young forest. But it was a much older tree that caught my eye.

How Fir Trees Became Christmas Trees

Dec 17, 2018
Christmas tree in front of the cathedral of Cologne.
Flickr user CRE@!V!TY (CC-BY-NC-ND-2)

Fir trees, decorated and lighted, are such a fixture of American homes at Christmas that it's difficult for us to imagine that it was not always so. But on a time scale of 1 to 10, with 1 being the beginning of life on earth, the Christmas tree tradition begins somewhere around 9.999999999.

'Field Notes:' The Power Of The Western Red Cedar

Nov 26, 2018
A western red cedar (Thuja plicata) in Vancouver.
abdallahh (CC-BY-2)

The ides of November, a time of limbo between autumn and winter. It is my birthday. I take a walk in celebration of existence. The atmosphere is cool and gray, and the first layers of high-elevation snow have cast a renewed sense of dimension and personality upon the massive peaks above, their tips immersed in soft November clouds. I walk on tribal lands in the Mission Mountains, and cut off trail to saunter along the stream.

'Field Notes:' What Determines When Leaves Fall?

Oct 21, 2018
Fall leaves.
(PD)

Every autumn, deciduous trees and shrubs shed their leaves. In some years, leaves are shed earlier than in others. Why does this happen? What determines when leaves fall?

Are You Mis-Using These Common Tree Terms?

Sep 23, 2018
Some write of “conifers and deciduous trees” as if they are somehow different. But, of course, when describing trees the words coniferous and deciduous may be distinctions without a difference.
Josh Burnham (CC-BY-2.0)

As I split and stacked my winter firewood this fall in preparation for the long nights to come, trees in the surrounding forest were also preparing for winter. While I watched their leaves turning yellow along the flank of the Bitterroot Mountains, I found myself considering the confusing terms people use to describe those trees. In particular, folks tend to mix up perfectly good words in ways that leave me more befuddled than enlightened.

Ancient Giants: The Mysterious Beauty Of An Aspen Grove

Sep 9, 2018
Aspen grove
(PD)

The hot summer sun beats down on my back as I climb the trail to the ridge. Looking for a place to wait for my hiking companion, I find a grove of quaking aspen. Their distinctive white bark is beautiful and their leaves rustle at the hint of a breeze.

Flickr user Tim Jones (CC-BY-NC-ND)

The bark of any tree is more than just a good-looking facade. Even the most graceful aspen or stately ponderosa requires bark to protect its sensitive inner flesh from disease, parasites, and other environmental stresses, such as fire.

Few surviving trees remain in the changed landscape located in the Frank Church-River of No Return Wilderness Area in Idaho.
Camille Stevens-Rumann

In the forests of the Rocky Mountains, fewer trees are growing back after recent wildfires because of climate change. That’s what a team of researchers discovered after studying seedling regeneration at 1,500 sites in five different states.

University of Montana fire ecology Professor Philip Higuera is a co-author of the study. He joins us now.

Cottonwoods: Where Wildlife Take Refuge In Winter

Jan 29, 2018
Black Cottonwood in Winter.
USFWS Mountain Prairie

Thinking about plants in winter recently, I remembered a particular good-sized cottonwood I saw while walking along a riverbank. What was its story?

From James Halfpenny’s fascinating book “Winter:  An Ecological Handbook,” I learned that cottonwoods, like many northern trees, have very special adaptations to survive the long, cold winters.

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