Invasive Species

February 25, 2008--Arkansas Valley ground zero for invasive tamarisks (Pueblo Chieftain)

Nearly 70 percent of Colorado land taken over by tamarisk is in the Arkansas River Basin, a recently completed mapping project reveals. “They are causing serious impacts to an already limited water resource in an over-appropriated basin,” said Jean Van Pelt, conservation outreach coordinator for the Southeastern Colorado Water Conservancy District.


February 24, 2008--World's coastal waters riddled with invasive species (Environmental News Service)

Eighty-four percent of the world's coasts are being colonized by foreign aquatic species, according to a Nature Conservancy study published this week. San Francisco Bay is the most invaded aquatic region on Earth, the study finds, with 85 invasive species in its waters, 66 percent of them considered harmful.


February 23, 2008--Inspections to fight spead of mollusks (Rocky Mountain News)

Colorado boats face mandatory inspections this year to help combat the spread of zebra mussels. The inspections are scheduled to begin in March at Lake Pueblo and expand to Navajo, Cherry Creek, Chatfield and John Martin state parks this spring.


February 19, 2008--State works to keep zebra mussels in check (Pueblo Chieftain)

State and federal officials are trying to get a handle on zebra mussels at Lake Pueblo before they get out of hand. A remotely operated underwater camera will be used this week to determine the scope of an infestation of the mussels discovered in November. Divers have been lined up to get samples if large areas of mussels are found.


January 27, 2008--Mussels might be moving west (Colorado Springs Gazette)

A foreign invader that’s made its way into Colorado for the first time has raised concerns for water supplies in the Pikes Peak region, and officials worry the scourge is heading west. The Colorado Division of Wildlife said Jan. 17 that zebra mussels had been found in Lake Pueblo State Park. Officials here now worry this tiny scourge is moving west.


January 23, 2008--Effects of drought on Yellowstone lasting, widespread (Denver Post)

An eight-year drought has left scores of ponds and wetlands dry and thirsty in Yellowstone. It also stands to force shifts in wildlife, the frequency of wildfires, the timing of mountain snowmelt and the growth of nutritious vegetation.


January 17, 2008--Zebra mussels detected at Lake Pueblo State Park (Denver Post)

Zebra mussels, first discovered in the U.S. in the Great Lakes, have been detected at Lake Pueblo State Park, state wildlife officials said today. The notoriously invasive animals, native to eastern Europe, eat large amounts of plankton that species native to Colorado waters need to survive.


January 16, 2008--Zebra mussel found in California reservoir (LA Times)

The zebra mussel that has wreaked havoc in waterways around the nation has been found in California, dismaying state and federal water officials who hoped to prevent the fast-spreading mollusk from reaching the West Coast.


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