Q: What native land snails live in the Bay Area? Where do the common garden snails come from, and what’s the status of our native snail populations? [Erica, Mountain View] A: If you are a gardener like me, you eventually … Read more
Taking the Heat
Though we may not be able to detect it on a day-to-day basis, climate change has come to the Bay Area and is already leaving its mark on local ecosystems: rising tides in the Bay, increasingly severe wildfires, acidification of ocean waters. While it may be too late to avoid global warming’s early stages, there is a lot we can do to both understand and mitigate its impacts on our landscapes and watersheds. With the support of world-class research institutions and an active environmental movement, Bay Area scientists are taking the lead in this crucial effort.
Book Review: Introduction to California Birdlife
Introduction to California Birdlife, by Jules Evens and Ian Tait, University of California Press, 2005, 382 pages, $16.95 paperback, $45.00 hardcover Don’t reach for this book hoping to immediately identify birds at the bird feeder. Think of it as a … Read more
Book Review: Raptors of California
Raptors of California, by Hans and Pam Peeters, University of California Press, 2005, 305 pages, $17.95 Here in California, we are fortunate to have 27 species of raptors, a designation that includes eagles, hawks, and falcons. It’s not unusual for … Read more
Caching In
Think of the western scrub jay: screeching, assertive, a bully and glutton at backyard bird feeders. But also, as Judith Larner Lowry has noticed in her West Marin yard, caching acorns, bay nuts, and other seeds, many more than the birds could ever hope to recover. Given that these seeds can’t move uphill on their own, we owe our oak-studded hillsides in part to the forethought, and forgetfulness, of this very familiar bird. Lowry’s advice? Sit back and let a few of our local jays’ missed meals take root.
Artificial Reefs for Oysters
In our October-December 2004 issue, Bay Nature reported on efforts to restore once-thriving Bay populations of the West Coast oyster, Ostrea conchaphila, which were devastated by a complex mix of Gold Rush-era sedimentation, Bay fill, pollution, and over-harvesting. In the … Read more
Finding the Stash
From the snowdrifts of Siberia to the labs of UC Davis, assistant research professor Vladimir Pravosudov has studied the food-caching behavior of various birds, including Russian birds that cache up to half a million items in one year. Born in … Read more
Are native bees suffering the same colony collapse disorder as honeybees?
Q: Are native bees suffering the same “colony collapse disorder” as honeybees? [Linda, San Ramon] A: Colony collapse disorder, or CCD, has gotten a lot of media attention, and with good reason. The western honeybee (Apis mellifera) is native to … Read more
At Home with the Packrats
What’s that pile of sticks over there? It could be the home of a dusky-footed woodrat. If you could see inside, you’d find a tidy little home complete with bedrooms, a pantry, and even a few latrines!