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.
Jonathan Perez stands in a remote part of Alaska’s North Slope while White-Crowned Sparrows sing from surrounding shrubs and a Jaeger flies overhead, calling. Perez is listening to the bird calls, recording what species sound out and how many individuals are singing. Next to him, an automated device is attempting to do the same.
An albatross soaring over the wide open ocean doesn’t just rely on chance sightings of prey; it actually follows its nose. Dimethyl sulfide (DMS) is a biological sulfur compound that can result from the activity of microorganisms called phytoplankton. Not only does airborne DMS provide a wind-map for foraging seabirds, it also also aids in […]
Even Wacky Weather doesn’t stop bird migration to Alaska. Scientists on the north side of the Brooks Range at Toolik Field Station find the birds which made it over the mountains have located their nests, indicating procreation has begun.
Vacuuming at home isn’t too edifying. How about vacuuming the Alaska tundra to snag a bag full of bugs? That’s an entirely different story. Ashley Asmus, graduate research assistant at the University of Texas at Arlington, is using a huge reverse leaf blower to collect the bugs she’ll study.
On the tundra a wire walk-in trap has been placed over seed scattered atop icy Alaskan ground. A Longspur alights nearby. It twists its head to eye the seed, hops inside then briefly flaps – unsettled by the trap door closing behind it. The Longspur settles and eyes the ground again, beginning to peck. PhD student Jesse Krause, a researcher […]
The Arctic is blanketed in snow for 9 to 10 months of the year. Then in May or June, with the Sun shining long overhead, snow melt comes sudden. Mathew Sturm, professor of Geophysics, University of Alaska, Geophysics Institute says the world of the Arctic can go from “White to dark in a space of […]