MTPR

Field Notes

Sunday 12:55 PM, Tuesdays and Fridays at 4:54 PM

For keen observers, a walk to the grocery store or a hike up a mountain can inspire questions. Where do magpies nest?  Why doesn’t a spider stick to its own web? How do water striders keep from sinking?  Every week since 1992, Field Notes has inquired about Montana's  natural history. Produced by the Montana Natural History Center, Field Notes are written by naturalists, students and listeners about the puzzle-tree bark, eagle talons, woolly aphids and giant puffballs of western, central and southwestern Montana.

Interested in writing a Field Note? Contact Allison De Jong, Field Notes editor, at adejong [at] montananaturalist.org or (406) 327-0405.

Field Notes podcast

Ceanothus: Life From The Kiss Of Fire

May 30, 2017
Ceanothus velutinus, a plant with more common names than zip codes in California.
Walter Siegmund (CC-BY-SA-3)

Thirty-plus years ago when I was studying wildlife management at Oregon State University, we learned that Ceanothus was a highly preferred forage plant for deer and elk during the winter. I knew that Ceanothus was the genus name of a large group of western shrubs and I even knew enough to recognize a few of the individual species back then.

Bumblebee (Bombus nevadensis).
Sesamehoneytart (CC-BY-SA-4)

I headed home with my head full of questions about what the bumblebee had been doing and why. Why would it ignore food in favor of bare and uninviting ground?

Pronghorn antelope at the National Bison Range.
Josh Burnham

Pronghorn are unusual because their twins are the only surviving winners in some pretty serious battles within the womb. Soon after fertilization, there can be more than seven developing embryos, which begin to elongate in what pronghorn biologists call the “thread-stage.” These thread-like embryos literally entangle and often knot together till they pull each other apart. Wenfei Tong explains in this episode of "Field Notes":

Ponderosa Pine Bark: Rocky Mountain Aromatherapy

May 8, 2017
Flickr user Tim Jones (CC-BY-NC-ND)

The bark of any tree is more than just a good-looking façade. 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.  Much like our skin, this outer layer is a necessity to protect the biological functions occurring within its protective covering. 

The Story Behind Sagebrush, An Icon Of The West

May 1, 2017
Big sagebrush (Artemesia tridentata)
Matt Lavin (CC-BY-SA-2)

Break off a sprig of big sagebrush and inhale its aroma: the fragrance is clean, sharp and as cool as the smell of winter. Call it camphor blended with a touch of Christmas. Crush a few leaves between your fingertips and the scent is suddenly somewhat bitter and more pungent. Let the sprig dry for a few hours and you’ll find that the fragrance gradually loses its bite, softening to crisp evergreen with a hint of juicy berry.

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