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Vulnerability, resilience, and hopeful potential in world’s tallest trees

January 12, 2023970 Views

Redwoods and Climate Change Scientists from Cal Poly Humboldt conducted a rangewide analysis of coast redwood (Sequoia sempervirens) to examine growth trends and understand how these trees are responding to recent environmental changes. They found that redwoods have varying sensitivity to drought, and that rising temperatures may affect tree performance in unexpected ways—results that are both concerning and hopeful. Coastal fog helps alleviate drought stress. Nighttime fog, in particular, is one of the best predictors of redwood growth efficiency. Phot Credit: (Courtesy of Steve Sillett) The study, published in Forest Ecology and Management, was led by Cal Poly Humboldt Forestry Professor Stephen C. Sillett, the Kenneth L. Fisher Chair in Redwood Forest Ecology. Sillett’s team w...

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Skydiving salamanders live in world’s tallest trees

AWARA MUSAFIR BUREAU

May 25, 2022913 Views

Salamander living in redwoods is able to maneuver in freefall, suggesting adaptation to living at heights Salamanders that live their entire lives in the crowns of the world's tallest trees, California's coast redwoods, have evolved a behavior well-adapted to the dangers of falling from high places: the ability to parachute, glide and manoeuvre in mid-air. Flying squirrels, not to mention numerous species of gliding frogs, geckos, and ants and other insects, are known to use similar aerial manoeuvres when jumping from tree to tree or when falling, so as to remain in the trees and avoid landing on the ground. The wandering salamander (Aneides vagrans). Image credit: Christian Brown Similarly, the researchers suspect that this salamander's skydiving skills are a way to steer bac...