Nature

A female acorn woodpecker. (Charles J. Sharp / CC BY-SA 4.0)

On the Trails: Making hay and storing food

Many animals store food in preparation for winter or just to be eaten later. Bears and wolves are among those that stash prey remains, with… Continue reading

 

Boaters paddle Kenai Fjords National Park in summer 2024. The park was created in 1980 as part of the Alaska National Interest Lands Conservation Act. (Photo by Ned Rozell)

Alaska Science Forum: Jimmy Carter, the man who preserved Alaska

Right about now, within a shrub in southern Texas, a ruby-crowned kinglet twitches to face northward. In a few months, guided by forces neither the… Continue reading

 

Licorice ferns often grow on tree trunks and branches. (Photo by Bob Armstrong)

On the Trails: Licorice ferns

The understory of our forests is graced with lots of ferns in a variety of shapes and sizes. Ferns (along with trees and wildflowers) are… Continue reading

 

The author’s wife grew up in Lexington, Massachusetts where she had more classmates go to Harvard than the author had classmates total. But that doesn’t mean her upbringing was better. (Photo by Jeff Lund)

I Went to the Woods: Different, not better or worse

A seven-foot minuteman stands on a rock base where Massachusetts Avenue splits at the end of Lexington’s main drag. He was unveiled in 1900 to… Continue reading

The author’s wife grew up in Lexington, Massachusetts where she had more classmates go to Harvard than the author had classmates total. But that doesn’t mean her upbringing was better. (Photo by Jeff Lund)
Horned grebes in winter plumage float on the tide. (Photo by Bob Armstrong)

On the Trails: Sea lions, horned grebes, and brown creepers

I often walk out to Pt. Louisa for the great vistas and a good chance of seeing some wildlife. Sometimes, of course, there are no… Continue reading

Horned grebes in winter plumage float on the tide. (Photo by Bob Armstrong)
Juneau sees common loons more often in winter than summer, when they are nesting on lakes. (Photo by Bob Armstrong)

On the Trails: Loons

One misty day in mid-December, a friend and I walked the little Fish Creek Trail. At the side of the pond, a small gray bird… Continue reading

Juneau sees common loons more often in winter than summer, when they are nesting on lakes. (Photo by Bob Armstrong)
Neve Baker stands beside her poster on discovering ancient evidence of beavers in Grand Tetons National Park while she was at the Fall Meeting of the American Geophysical Union in Washington, D.C. in December 2024. (Photo by Ned Rozell)

Alaska Science Forum: Ancient beavers, sea floor bumps, thick air

It’s time to start emptying the notebook following the Fall Meeting of the American Geophysical Union, which happened from Dec. 9-13, 2024 in Washington, D.C.… Continue reading

Neve Baker stands beside her poster on discovering ancient evidence of beavers in Grand Tetons National Park while she was at the Fall Meeting of the American Geophysical Union in Washington, D.C. in December 2024. (Photo by Ned Rozell)
Evening walks are great. Put a few pounds in a backpack and you’ll increase the health benefits of light exercise. (Photo by Jeff Lund)

I Went to the Woods: Numbers worth noting

Everything is being reduced to numbers which my math department friends down the hall cite as evidence of the advancement of the species. But old… Continue reading

Evening walks are great. Put a few pounds in a backpack and you’ll increase the health benefits of light exercise. (Photo by Jeff Lund)
A pygmy owl in the snow outside the doorstep of a Juneau home. (Photo by Denise Carroll)

On the Trails: Pygmy owls

This little owl was quite frequently detected in the trees at the edge of the wetlands this fall. And one appeared on the doorstep of… Continue reading

A pygmy owl in the snow outside the doorstep of a Juneau home. (Photo by Denise Carroll)
The Walter Washington Center in downtown Washington, D.C., hosted the 25,000 scientists who attended the Fall Meeting of the American Geophysical Union from Dec. 9-13, 2024. (Photo by Ned Rozell)

Alaska Science Forum: More familiar news of the North

WASHINGTON, D.C. — I am once again elbow-to-elbow with thousands of scientists, at a meeting I first attended 25 years ago. Back then, in 1999,… Continue reading

The Walter Washington Center in downtown Washington, D.C., hosted the 25,000 scientists who attended the Fall Meeting of the American Geophysical Union from Dec. 9-13, 2024. (Photo by Ned Rozell)
A male downy woodpecker pecks at a suet block with its small bill. (Photo by Steve Willson)

On the Trails: Hairy and downy woodpeckers

A male hairy woodpecker is a regular visitor to my peanut butter feeders, also sampling from the suet from time to time. In a previous… Continue reading

A male downy woodpecker pecks at a suet block with its small bill. (Photo by Steve Willson)
On Aug. 6, 2024, an outburst flood from the Mendenhall Glacier caused major flooding in the Mendenhall Glacier Basin. Multiple homes and roads are inundated. No reports of injuries have been reported. The City and Borough of Juneau (CBJ) issued an evacuation order on the evening of August 5 and established an emergency shelter for residents displaced by the flooding. (Alaska National Guard courtesy photo)

Alaska Science Forum: Alaska continues to change, fast

With his eyes on Alaska weather and climate for many years, Rick Thoman saw a need for a recent update on what is happening within… Continue reading

On Aug. 6, 2024, an outburst flood from the Mendenhall Glacier caused major flooding in the Mendenhall Glacier Basin. Multiple homes and roads are inundated. No reports of injuries have been reported. The City and Borough of Juneau (CBJ) issued an evacuation order on the evening of August 5 and established an emergency shelter for residents displaced by the flooding. (Alaska National Guard courtesy photo)
A climbing goby known as ‘o’opu ‘alamo’o, or Hawaiian freshwater goby. (Hawaii Department of Land and Natural Resources photo)

On the Trails: Fish locomotion

There are about 28,000 species of bony fishes — the largest taxonomic group of vertebrates — and they have been around for a very long… Continue reading

A climbing goby known as ‘o’opu ‘alamo’o, or Hawaiian freshwater goby. (Hawaii Department of Land and Natural Resources photo)
A red squirrel pauses on a tree on the University of Alaska Fairbanks campus. (Photo by Ned Rozell)

Alaska Science Forum: The secret life of red squirrels

Stan Boutin has climbed more than 5,000 spruce trees in the last 30 years. He has often returned to the forest floor knowing if a… Continue reading

A red squirrel pauses on a tree on the University of Alaska Fairbanks campus. (Photo by Ned Rozell)
A Banff Snail (Physella johnsoni), about 3.5 millimeters in size, in a hot spring pool. (Paul M.K. Gordon / CC BY-SA 2.5)

On the Trails: Hot spring snails

From a visitor from England who visited Calgary on the way to Juneau, I learned about the Banff Springs snails, which live in thermal springs… Continue reading

A Banff Snail (Physella johnsoni), about 3.5 millimeters in size, in a hot spring pool. (Paul M.K. Gordon / CC BY-SA 2.5)
A male hooded merganser shows off his flashy plumage. (Photo by Bob Armstrong)

On the Trails: Critter watching in fall

I like living in a place where I can encounter wild critters in so many places and so often. But some days are always luckier… Continue reading

A male hooded merganser shows off his flashy plumage. (Photo by Bob Armstrong)
A Boquila trifoliolata in Parque Nacional Puyehue, Chile. (Tony Rebelo / CC BY-SA 4.0)

On the Trails: Mimicry in animals and plants

Mimicry in animals is a common form of protection from predators. For instance, two distasteful or toxic butterflies may mimic each other for mutual defense,… Continue reading

A Boquila trifoliolata in Parque Nacional Puyehue, Chile. (Tony Rebelo / CC BY-SA 4.0)
A short-eared owl pounced on something deep in the grass. (Photo by Greg Chaney)

On the Trails: Owls and voles and other observations

In the middle of October, bird watchers estimated about 40 short-eared owls were seen hunting on the wetlands — probably a record number. What was… Continue reading

A short-eared owl pounced on something deep in the grass. (Photo by Greg Chaney)
Fairbanks’ first real winter storm of October 2024 left behind an uncommon wet, slushy mess. (Photo by Bobby Bianco)

Alaska Science Forum: The numbers behind a weather forecast

A meteorologist from the National Weather Service’s local office recently told a newspaper reporter that heavy, wet, snow would materialize in a few days. He… Continue reading

Fairbanks’ first real winter storm of October 2024 left behind an uncommon wet, slushy mess. (Photo by Bobby Bianco)
Extremes of the colour gradient of the Eastern San Antonio frog (Hyla orientalis). On the left, a specimen captured in Chernobyl inside the high contamination zone; on the right, a specimen captured outside the Exclusion Zone. (Germán Orizaola/Pablo Burraco, republished under a Creative Commons license)

On the Trails: Evolution constantly ongoing among many populations in many places

Someone once asked me “Is evolution still happening?” My brief answer was “Of course, it’s always happening.” I would have gone on to explain a… Continue reading

Extremes of the colour gradient of the Eastern San Antonio frog (Hyla orientalis). On the left, a specimen captured in Chernobyl inside the high contamination zone; on the right, a specimen captured outside the Exclusion Zone. (Germán Orizaola/Pablo Burraco, republished under a Creative Commons license)