Tag: invasive species
In response to the major threats posed to the Great Lakes by invasive Asian carp, engineers have developed devices to keep them out, but delays in deciding how to implement them might give the fish an edge.
How an alert Boy Scout, hard working biologists, and continued vigilance have helped one Great Plains state remain free of invasive zebra mussels — for now.
Invasive species are here and more are on the way! Find out about the problems and some possible solutions.
UC Berkeley's University Herbarium boasts one of the largest and oldest collections of seaweed in the United States. Herbarium curator Kathy Ann Miller is leading a massive project to preserve digitally nearly 80,000 specimens of west coast seaweed.
As you fill your grocery cart with food for Thanksgiving, pause for a minute and think about where that food came from. I don’t mean is it local or organic or hormone/pesticide /gluten-free—I mean is it Old World or New World? On what continent did that food evolve?
Lake Erie is considered to be the most productive of all five of the Great Lakes.Within its waters are diverse and interdependent plants and animals that make up an intricate web of life. Mostly due to human carelessness, the lake has become home to an increasing number of non-native plants, animals, and micro-organisms which threaten […]
The invasive Asian carp has wreaked havoc in the Mississippi River system. The voracious plankton eaters have out-competed native fish and have become the dominant species in many locations. If the carp reach the Great Lakes, they pose a threat to its $7 billion fishery, so a battle against them is taking place on many fronts.
Over the last 15 years, more than a billion dollars has been spent to protect Lake Tahoe's clear waters from runoff and erosion. Now, new threats to lake's clarity are emerging, just as restoration funding is drying up.
A few weeks ago, scuba divers in Lake Tahoe found the body of a man who had drowned in the lake 17 years ago. Still in its wetsuit, the body was very well preserved. Because the water in this high alpine lake is so cold, decomposition is very slow. This fact has spawned rumors, the most famous of which involves Jacques Cousteau and still makes me shudder, years after I first heard it.
California’s grasslands are some of the most heavily invaded habitats in the state. As the climate changes—temperatures increase and water becomes scarcer—the conditions will favor exotic grasses, which will become even more prevalent.
Hundreds of invasive species have been found in San Francisco Bay, one of the most invaded estuaries in the world. Hoping to restore native fish and wildlife, California has passed the strictest rules in the nation to prevent ocean freighters from introducing more foreign species to the bay. But as Lauren Sommer reports, the standards are so tough, officials may not be able to enforce them.
A natural experiment created by the overlap of the Basin Complex Fire and a UC Davis study allowed scientists to test whether SOD did in fact make wildfire worse. What they found was not what the news media or the firefighters predicted.
Fifteen months after a native plant thought to be extinct was rediscovered in San Francisco, local botanists have succeeded in growing it and are making plans to plant it out in the wild.
Spiders seem to be everywhere this fall. There are dozens of spider webs on my deck; each morning, I destroy a new web as I leave the house. It seems like every time I go outside, I wipe spider silk from my face. And it’s not just my yard—several of my friends have noticed lots of spiders recently, too. I wondered if we’re experiencing a bumper year for spiders, so I asked a few arachnologist friends about it.