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

Lycogala epidendrum, also known as "wolf's milk slime".
Benny Mazur (CC-BY-2.0)

Slime molds are stubbornly mysterious. They are usually lumped in with fungi, but exhibit several traits ordinarily attributed to animals. One of these stands out above the others: slime molds travel.

Freshwater diatom seen under a scanning electron microscope.
Courtesy UM Electron Microscopy Facility

The bottom of this shallow stream is covered with a complex community of algae, comprising many different species. Probably most abundant of all are the diatoms, many of which secrete a slippery mucus as they travel, leaving the rocks very slick.

Chris Kennedy, U.S. Fish & Wildlife Service (CC BY 2.0)

If you are like me, you will probably hear hundreds of pikas before you ever see one. For years, I heard their shrill calls while hiking high ridges and peaks, but no matter how still I stood or how hard I gazed at those rocky mountain slopes, I never saw a real, live pika.

As The Crow Flies: A Curious Look At A Clever Bird

Aug 14, 2015
Crow
(PD)

Growing up in Kentucky, what I knew about crows was that my uncle had a big one tattooed across his chest. What struck me most when I moved western Montana was the murder upon murder of crows. Never in my eastern life have I seen so many crows as I do in this western place. Crows make a habit of lingering by the dumpster out back, in the tall evergreen out front, in the middle of the street. Even now, I can hear them cawing.

Grasshoppers: 'A Crisp, Electric Spark of Joy'

Aug 1, 2015
There are nearly 400 species of grasshoppers in the 17 western states.
(PD)

Did you know grasshoppers sing with their legs, and hear with their abdomens? Learn more with this field note from the Montana Natural History Center.

Sunlight, Sodium, & Spiders: The Life Of A Montana Butterfly

Jul 29, 2015
Spring azure butterfly.
Elena Gaillard (CC-BY-2)

A cluster of male butterflies called "blues" are sipping minerals from a damp, sandy patch at river’s edge. Each of the nickel-sized insects probes the sand grains with a proboscis, a tongue of sorts that’s more like a drinking straw. Then, something strange interrupts the peaceful scene. A butterfly keels over.

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.

Ancient Giants: The Mysterious Beauty Of An Aspen Grove

Jul 13, 2015
Aspen grove
(PD)

One of the world's largest and oldest organisms is an 80,000 year-old aspen colony covering over 106 acres. How do aspens grow so large and so old?

Ant lion larva
Jonathan Numer (CC-BY-SA-3)

Ant lions, or "doodlebugs" have impressive mandibles, are adept at camouflage, and are very successful at trapping and ambushing their prey. "Field Notes" takes a closer look at these fascinating insects.

In August, 2010, my family and I watched from our backyard an unbelievable phenomenon: a single species of dragonfly, individually numbering in the thousands, flew steadily westward across our property on the edge of town for ten magical days. Occasionally they would perch briefly – each one facing west – on the neighbor’s wire fence before continuing on.

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