forest facts

Aspens in Utah. Photo by Fool-On-The-Hill, Flickr Creative Commons

Meet an 80,000-Year-Old Tree

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Do you think a 2,000 year old redwood is ancient? A giant sequoia weighing 2,000 tons is heavy?  What if I were to tell you that these weren’t even close to the oldest or the biggest?  Sure, bristlecone pines live …

Ferns in the Redwood Canopy

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In last week’s blog, I described my climb into a large double redwood to help Steve Sillett and his team make measurements for our Redwoods and Climate Change Initiative. While up in this tree, I was suspended alongside enormous fern …

Giant sequoia cones. Photo by Mark Bult

Finding Patterns in the Redwoods: It’s Easy as 1, 1, 2, 3…

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Nature’s patterns are everywhere.  Sometimes they’re obvious – we mammals, for instance, almost always have five fingers and five toes on each hand and foot.  Sometimes these patterns aren’t nearly so apparent, but they’re still there nonetheless. The Fibonacci sequence …

Bay Lights – 1.5 Redwoods Tall

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  Outside our office this week the San Francisco Bay Bridge began twinkling with the artistic illumination of 25,000 new LED lights strung along the west span.  After dusk, views of the bridge are spectacular as waves of light pulse along 1.8 …

Redwood burl. Photo by Peter Montesano

Exploring the Mysteries of Redwood Burls

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We’ve all seen them—those enormous growths from the trunks or bases of redwood trees, sometimes covered in new sprouts, sometimes appearing to drip down the side of the tree like the molten remnants of a lost limb. These strange formations …

California Giant Salamander. Photo by William Leonard

Do salamanders bark in the woods?

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Every time I talk to a researcher who works in the redwood region, I learn something that makes my jaw drop. It happened again just a few days ago when I was speaking with Prof. David Wake of U.C. Berkeley. …

Coast redwoods on the UCI campus are not thriving.

Can redwoods thrive in Southern California climate?

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Redwoods do fine in Southern California, right? Researchers at UC Irvine are not totally convinced. In the 1980’s a scientist by the name of Ernest Ball cloned coast redwood giants from Northern California and reared test-tube redwoods. Many of these …

Megan Ferreira and I stand next to one of Yellowstone's remarkable petrified redwoods.

The Oldest Redwood I’ve Ever Seen

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I just returned from a New Year’s trip through Yellowstone National Park, where I hiked out to see one of the petrified redwoods still standing on the forest slopes of Wyoming. This ancient redwood has been through an amazing transformation—its …

Grove in Hendy Woods State Park.

Life on the Forest’s Edge

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It takes a long time to get to Hendy Woods State Park from San Francisco. It takes a while to get there from pretty much anywhere, but it’s worth it.  Approaching the park through the Anderson Valley wine country, the …

Giant sequoia branches covered in snow. Photo by garden beth, Flickr Creative Commons

Why are Christmas trees pointy on top?

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Why are Christmas trees shaped the way they are, pointy on top and wide at the bottom?  It’s because their growth is regulated by hormones.  One such hormone (called auxin) is produced at the growing tip of the treetop and …

Giant redwood crowns loom over a canopy of lesser trees (Picea sitchensis, Tsuga heterophylla) in JSRSP. Photo by Stephen Sillett

Cap-and-trade among the redwoods

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This was a big month in California. While the election may be the first thing that comes to mind, we also witnessed the first auction of carbon credits to companies that emit more than 25,000 tonnes of carbon dioxide every …

Ants tending aphids on the underside of young leaves of Big Leaf Maple (Acer macrophyllum) in Del Norte County.

Feasting in the Redwood Forest

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No doubt, we have all experienced the joy of showing up to a thoughtfully prepared Thanksgiving feast with family and friends.  Surrounded by overflowing dishes of food, it is nearly impossible to go to bed hungry following a Thanksgiving meal. …

Redwood tree cores.

Cross-section of a redwood tree?

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Since I was a little girl, I’ve enjoyed standing next to the large cross-section of redwood trunk on display at the entrance of Muir Woods National Monument. It boggles my mind that this redwood started growing in the year 909 …

Banana slug.

Slug Truth is Stranger than Fiction

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Did you know that the coast redwood forest is home to the largest slug in North America and the second largest slug worldwide*?  Yep, our very own banana slug (Ariolimax columbianus) grows up to 8 inches in length and can …

Ageratina adenophora

They call it “forest killer”

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I just returned from a vacation in Nepal, a beautiful country boasting the tallest mountains in the world. For two weeks I trekked through the mountains, seeing stark snowscapes and yak-covered slopes in the northern high Himalayas and the lush …

Eel River. Photo by Howard King

Brown to Blue: The Eel River’s Dramatic Changes in Hue

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When the South Fork Eel River in Mendocino County turns blue during the winter, it is impossible not to wonder why the river changes color so much over the course of the year. With first fall rains, autumn leaves falling …

Coral fungus in the redwood forest.

There’s More Than Meets the Eye to Forest Fungi

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Did you know that winter rains cause fungi to reproduce in the redwood forest?  Mushrooms are the most visible parts of the fungal body and grow up out of the soil so that the wind will disperse their spores.  When …

Coast redwood boasting colorful fall leaves at Humboldt Redwoods State Park in August.

True colors are showing

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As summer rolls on every year, people always ask me with concern about why their redwoods have orange foliage. Is it a sign of drought? Is the redwood sick? Luckily for the redwoods, the answer to these questions is quite …

Scraping teeth of a bear left this young redwood missing bark.

Bear Breakfast No Picnic for Redwoods

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If you go out in the woods today You’re sure of a big surprise. If you go out in the woods today You’d better go in disguise For every bear that ever there was Will gather there for certain, because …

Giant sequoia snag.

Giant Sequoia Snags

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A giant sequoia can grow for more than 2,000 years and in that time easily earn its reputation for being one of the most massive trees on Earth. While the giant sequoia’s sheer size is certainly amazing enough, these giants …