Cuckoos are Coo-Coo for Native Trees
When you hear "ka, ka, ka, ka, ka, kow, kow" you know there's a yellow-billed cuckoo in the area. Once a common call heard from Canada to Mexico and throughout the Western United States, the western yellow-billed cuckoo is now a candidate for protection under the Endangered Species Act. Research by USGS and Northern Arizona University scientists shows that cuckoos in Arizona prefer breeding habitat dominated by native trees, especially cottonwoods and willows and need large, continuous areas of habitat near rivers and streams. These findings will help resource managers conserve and manage riparian habitats needed to ensure the survival of the western yellow-billed cuckoo. Learn more about the cuckoo and research to conserve the species at http://pubs.usgs.gov/fs/2009/3091/. For more information, contact Matthew Johnson at firstname.lastname@example.org or (928) 523-7764.
Climate Change: Nitrogen Adds to the Equation
Nitrogen from human activities is a significant source of greenhouse gases. Eleven percent of human-caused greenhouse gases comes from nitrous oxide. It also has significant negative effects on ecosystems, particularly protected national parks and wilderness areas. Nitrogen impacts were discussed on the world stage at the UN Climate Change Convention in Copenhagen this month. USGS scientist Jill Baron moderated a side event panel on "Options for Including Nitrogen Management in Climate Policy Development." This U.S. State Department-sanctioned event highlighted nitrogen's role in climate processes and presented nitrogen management strategies to help mitigate climate change and minimize ecological impacts. The panel was sponsored by the UN Scientific Committee on Problems in the Environment, an arm of the U
|Contact: Kara Capelli|
United States Geological Survey