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The chemical map of otoliths

Posted 20 October 2014 by Liz O'Connell

Highly magnified view of an otolith, an Arctic grayling inner ear bone / Image Heidi Golden

It's about the size of a diamond and comes from the inner ear of a fish. This tiny construction holds a treasure trove of information, a calcium carbonate microchip made of bone and accessed by a laser. Let's take a look at the science of otoliths. ... Read more

The Frontier Scientists TV series is premiering October 6th!

Posted 6 October 2014 by Liz O'Connell

The Frontier Scientists TV series is premiering October 6th! Frontier Scientists programs will be featured weekly on 360 North, streaming online at 360North.org and available in Alaska over the air in Anchorage and Juneau, and on GCI Cable, DirectTV, & Dish Network. Mondays at 8pm {5am UTC} Oct.6th - Dec.8th 2014, catch ten installments of 30 minute Frontier Scientists video programs featuring contemporary scientific discoveries. Real scientists present their work – impactful science underway in one of the last great... Read more

Grayling and the great commute

Posted 5 October 2014 by Liz O'Connell

Arctic grayling / Image Heidi Golden

I remember vivid visuals which manage to compress something immense into the space of seconds: the cosmic force of a big bang flinging matter across the universe, Ice Age glaciers clamoring down from the north then retreating again, time-lapse footage of the tides' rhythmic breathing. Even commuters dancing the stop-and-go of a traffic light. An Arctic grayling (Thymallus arcticus) is a fish; it's also a commuter of sorts. Its entire life is a rhythm of motion undertaken to survive and... Read more

How to catch an Arctic ground squirrel – for science!

Posted 24 September 2014 by Liz O'Connell

Kate Wilsterman releasing an Arctic ground squirrel next to its burrow / FrontierScientists footage

At Atigun River, north of the Arctic Circle, the sandy soil is run through with an interlaced network of burrows. The Arctic ground squirrels which call those burrows home have encountered something mundane to you or me, but no-doubt wondrous to them: big tasty taproots, stunningly orange. Carrots! Trapping squirrels The carrots are bait, placed carefully in wire cage traps by scientists working to learn more about the very unusual Arctic ground squirrel. Cory Williams, postdoctoral fellow at the University... Read more

The abundantly peculiar Arctic ground squirrel

Posted 17 September 2014 by Liz O'Connell

They survive colder core body temperatures than any other known vertebrate, sustaining a temperature below freezing yet not becoming frozen. They emerge from hibernation with clock-like accuracy ... Read more

Arctic ground squirrel videos

Posted 10 September 2014 by Liz O'Connell

Arctic ground squirrel / FrontierScientists footage

Arctic Ground Squirrel Videos The extraordinary life of the Arctic ground squirrel is described by dedicated scientists who study the handsome creatures. In videos: The Perfect Yuppie Pet, In the Field, In the Lab, And the Circadian Clock, the scientists reflect on questions about the Arctic ground squirrel and its unusual lifestyle. Discover what makes these animals so unique by hearing the scientists' newfound insights. In these videos Professor Loren Buck of University Alaska Anchorage, Professor Brian Barnes of University... Read more

Beating hearts in Denali

Posted 3 September 2014 by Liz O'Connell

“It never ceases to amaze me. No matter what the conditions are, what time of year it is, the place still awes me.” ~ Patricia Owen, wildlife biologist, Denali National Park & Preserve Cold nights have prompted the Denali landscape to turn colors; reds and purples are spectacular tundra accents spread across the wild vista. We’re at Denali National Park & Preserve meeting park rangers and scientists; searching for bears. While park visitor numbers are usually calculated to number about... Read more

On the back of the beast

Posted 27 August 2014 by Liz O'Connell

FDL_ThawSlump

We’ve joined scientists atop a frozen debris lobe, a slow-moving landslide in permafrost. They say we’re ‘on the back of the beast’. In the heavy rain and among fog-shrouded mountains, the scientists are making these uphill treks to record how temperature, water pressure, and local geological properties determine the slope movement of the massive lobes. These repeat measurements obtained at incredible accuracy can one day help us decode the secrets of the many massive frozen debris lobes (FDLs) currently approaching... Read more

The merits of plasticity

Posted 14 August 2014 by Liz O'Connell

Whether a species thrives or flags can have resounding consequences. When we think of our changing world, we imagine an ecosystem occupied by organisms which are interlinked. ... Read more

Biological clocks: Where arctic ground squirrels meet ‘social jet lag’

Posted 6 August 2014 by Liz O'Connell

An arctic ground squirrel being weighed in a research lab. / Image Erin Hooley, University of Alaska Anchorage Office of Advancement

Arctic ground squirrels may seem like little more than a brief thrill for your dog on a hike up Flat Top, but scientists are convinced they’re worth a serious second look. ... Read more