Tropical Fossils in Alaska | Geophysical Institute
13 Apr 2026 at 12:03am
Paleobotanist Jack A. Wolfe of the United States Geological Survey at Menlo Park, California, has found a number of tropical rain forest fossils along the eastern Gulf of Alaska. These include several kinds of palms, Burmese lacquer trees, mangroves and trees of the type that now produce nutmeg and Macassar oil.
Northern Tree Habitats | Geophysical Institute
16 Apr 2026 at 3:23pm
Why take a chance with exotics, when native trees have proven their ability to survive? Several reasons prompt testing of foreign tree species. Human activities often create and maintain new, sometimes artificial habitats that native trees are not adapted to. Exotics may have strong wood, large fruits or straight boles that are lacking in the ...
Pollen season arrives, blame the trees | Geophysical Institute
15 Apr 2026 at 1:05am
The air is rich with pollen because spring is the mating season for trees. The first step in a tree's reproductive dance is to release sperm, safely held in the center of a pollen grain. Trees release an incredible amount of pollen to improve the odds of finding a female flower.
Bonsai trees tell of winters long past | Geophysical Institute
19 Mar 2026 at 11:20pm
The trees have told him that giant weather systems like the Aleutian Low seem to have persisted despite human-caused warming. During winters when the Aleutian Low is strong, warmer temperatures and southerly winds create icy, stormy conditions that increase the likelihood of trees being damaged.
The Turkey and the Tambalacoque Tree - Geophysical Institute
13 Apr 2026 at 3:12pm
The elderly trees still produced seeds, but none of the seeds gerrninated, even when carefully tended under ideal nursery conditions. It was tempting to think the old trees were incapable of producing healthy seeds, but Temple didn't accept that reasoning. For one thing, the seeds (and their encasing fruit) looked fine.
Feltleaf willows: Alaska?s most abundant tree | Geophysical Institute
16 Apr 2026 at 2:37am
The range of the feltleaf willow, probably the most numerous tree in Alaska. From Alaska Trees and Shrubs by Les Viereck and Elbert L. Little, Jr.
More on Why Tree Trunks Spiral | Geophysical Institute
16 Apr 2026 at 8:31pm
In an earlier column , I asked if any readers could explain why the grain in trees seemed to spiral up the trunk-in a clockwise direction. That is, spiral marks in old trees crack open from the upper right to lower left around the trunk. Professor (now Emeritus) Neil Davis, the originator of this column, posed the same question in this column over ten years ago, and it's time for an update. I ...
Trees as Earthquake Fault Indicators | Geophysical Institute
15 Apr 2026 at 3:21am
A swath of dead, tilted and broken trees now makes obvious the trace of the Fairweather fault that broke in July 1958 to devastate Lituya Bay and nearby parts of southeastern Alaska. Sagging or tilting of the ground along a fault trace causes trees there to tilt or even fall.
Visit to an exotic tree plantation in Alaska | Geophysical Institute
17 Apr 2026 at 7:44am
The wire mesh excludes snowshoe hares, which sometimes clip seedlings at the stem or girdle young trees, especially at the peak of hares? 11-year cycles. This gentle, south-facing slope on well-drained Fairbanks silt loam has been an ideal place to be a tree for the last half century.
Cottonwood and Balsam Poplar | Geophysical Institute
13 Apr 2026 at 6:08am
The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
13 Apr 2026 at 12:03am
Paleobotanist Jack A. Wolfe of the United States Geological Survey at Menlo Park, California, has found a number of tropical rain forest fossils along the eastern Gulf of Alaska. These include several kinds of palms, Burmese lacquer trees, mangroves and trees of the type that now produce nutmeg and Macassar oil.
Northern Tree Habitats | Geophysical Institute
16 Apr 2026 at 3:23pm
Why take a chance with exotics, when native trees have proven their ability to survive? Several reasons prompt testing of foreign tree species. Human activities often create and maintain new, sometimes artificial habitats that native trees are not adapted to. Exotics may have strong wood, large fruits or straight boles that are lacking in the ...
Pollen season arrives, blame the trees | Geophysical Institute
15 Apr 2026 at 1:05am
The air is rich with pollen because spring is the mating season for trees. The first step in a tree's reproductive dance is to release sperm, safely held in the center of a pollen grain. Trees release an incredible amount of pollen to improve the odds of finding a female flower.
Bonsai trees tell of winters long past | Geophysical Institute
19 Mar 2026 at 11:20pm
The trees have told him that giant weather systems like the Aleutian Low seem to have persisted despite human-caused warming. During winters when the Aleutian Low is strong, warmer temperatures and southerly winds create icy, stormy conditions that increase the likelihood of trees being damaged.
The Turkey and the Tambalacoque Tree - Geophysical Institute
13 Apr 2026 at 3:12pm
The elderly trees still produced seeds, but none of the seeds gerrninated, even when carefully tended under ideal nursery conditions. It was tempting to think the old trees were incapable of producing healthy seeds, but Temple didn't accept that reasoning. For one thing, the seeds (and their encasing fruit) looked fine.
Feltleaf willows: Alaska?s most abundant tree | Geophysical Institute
16 Apr 2026 at 2:37am
The range of the feltleaf willow, probably the most numerous tree in Alaska. From Alaska Trees and Shrubs by Les Viereck and Elbert L. Little, Jr.
More on Why Tree Trunks Spiral | Geophysical Institute
16 Apr 2026 at 8:31pm
In an earlier column , I asked if any readers could explain why the grain in trees seemed to spiral up the trunk-in a clockwise direction. That is, spiral marks in old trees crack open from the upper right to lower left around the trunk. Professor (now Emeritus) Neil Davis, the originator of this column, posed the same question in this column over ten years ago, and it's time for an update. I ...
Trees as Earthquake Fault Indicators | Geophysical Institute
15 Apr 2026 at 3:21am
A swath of dead, tilted and broken trees now makes obvious the trace of the Fairweather fault that broke in July 1958 to devastate Lituya Bay and nearby parts of southeastern Alaska. Sagging or tilting of the ground along a fault trace causes trees there to tilt or even fall.
Visit to an exotic tree plantation in Alaska | Geophysical Institute
17 Apr 2026 at 7:44am
The wire mesh excludes snowshoe hares, which sometimes clip seedlings at the stem or girdle young trees, especially at the peak of hares? 11-year cycles. This gentle, south-facing slope on well-drained Fairbanks silt loam has been an ideal place to be a tree for the last half century.
Cottonwood and Balsam Poplar | Geophysical Institute
13 Apr 2026 at 6:08am
The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
