The Toll From Tree-Boring Pests
A new study estimates that invasive forest insects cost local governments about $2 billion a year and residential homeowners another $1.5 billion in lost property values.
View ArticleSharp Variations in Risks to Sea Turtles
A species may be listed as critically endangered while some populations within its ranks are thriving and some are probably beyond saving.
View ArticleIn a California Vineyard, Bluebirds Earn Their Keep
Attracted to nest boxes set up by an ornithologist, birds doubled their numbers in a central California vineyard and consumed enough insects to earn their keep.
View ArticleWild Salmon Are Not Holding Up, Study Finds
Salmon populations in California’s Mokelumne watershed are on the rise, but it turns out that only 4 percent are of wild origins.
View ArticleMammoth Trees, Champs of the Ecosystem
Mammoth trees accounted for only 1 percent of trees in a research plot but stored half of the area's biomass, researchers in Yosemite National Park found.
View ArticleOn the Go With Young Bluefin Tuna
Tags that transmit data reveal that bluefin tuna do not necessarily return to their birthplaces to spawn.
View ArticleOn Our Radar: Temperature Record Is Cast Out
Scientists conclude that a record high temperature measured in Libya in 1922 was inaccurate.
View ArticleIn Thoreau’s Flower Journal, Clues for Climatologists
Relying on notes taken by the naturalists Henry David Thoreau and Aldo Leopold, researchers track over a century of warming spring temperatures and earlier first blooms.
View ArticleMapping a Plague of Frogs
An interactive Web site, periodically updated, visualizes the occurrence of cases of amphibian chytrid fungus around the world.
View Article
