The United States Geological Survey neatly summarized the spill: “On 24 March 1989, the oil tanker ‘Exxon Valdez’ spilled 260,000 barrels of crude oil in Prince William Sound, Alaska. Oil eventually drifted over [] coastal and offshore waters occupied by approximately one million marine birds.” One million marine birds relying on habitat in Prince William […]
Tag: Migration
The Pleistocene sounds of the season
UAF FARM FIELDS — Gliding in with their wings folded like paper airplanes, nine Canada geese drop their paddle feet and prepare to land in a corner of this cleared plain. On this early fall day, the birds could use an air traffic controller. Their landing zone of barley stalks is clogged with the rusty […]
Ancient footprints on Beringia
You can see the depressions in the earth when the archaeologists point them out. Each house had a central room connected by tunnels to side rooms. Female relationships guided living arrangements: in a grandmother’s house, each of her daughters’ families would occupy one of the small side rooms. When they gathered there in rooms partially […]
Fitness for birds in warming Alaska
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.
Migration Over The Brooks Range
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.
Mosquito netting, vacuum power, and bug science
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.
Stressed out? Every year migratory birds battle stress, and win
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 […]
Thousands of kilometers north – migratory birds and a shifting world
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 […]
Wind-aided birds on their way north
After flying northward from Chile, a whimbrel landed in late March in an alfalfa field near Mexicali, Mexico. The handsome shorebird with a long curved beak left its wintering ground in South America one week earlier and flew more than 5,000 miles. Nonstop. In one of the great migrations happening all over the world right […]
The longest non-stop migratory flight
LLiz O’Connell for Frontier Scientists – Early on Bob Gill, Research Wildlife Biologist with the U.S. Geological Survey (USGS), thought Bar-tailed Godwits’ journey from Alaska to New Zealand was a non-stop flight. Faced with skepticism from his colleagues, but armed with satellite technology, Gill tagged a female Godwit he named E-7. By tracking E-7 in […]