A rugged, whitewater river flowing northward through deep canyons, the New River is among the oldest rivers on the continent. New River Gorge National River in West Virginia encompasses over 70,000 acres of land along the New River, is rich in cultural and natural history, and offers an abundance of scenic and recreational opportunities.
Big Southern Butte is one of two domes rising from a sea of basalt near the center of the eastern Snake River Plain in Idaho. The butte is one of the largest volcanic domes in the world, but at 300,000 years old it is also one of the youngest. Hikers who trek to the 7,550-foot high summit are rewarded with spectacular panoramic views. Photo by Devin Englestead, BLM Upper Snake Wildlife Biologist.
First light at Bosque del Apache National Wildlife Refuge in New Mexico. Established in November 22, 1939, the refuge has provided a critical stopover and wintering spot for thousands of sandhill cranes, geese and other waterfowl for 75 years. Bosque del Apache's sandhill crane population has multiplied from 18 birds in the 1840s to more than 20,000 birds today. Photo by Kim Hang Dessoliers (www.sharetheexperience.org).
DOINews: Recent Paper Assessed Risks For Adult Butterflies Exposed To Mosquito Control Pesticide Naled
USGS scientist Dr. Tim Bargar (USGS Southeast Ecological Science Center) recently published a new method to prospectively assess risks for adult butterflies exposed to the mosquito control pesticide naled. Prior to this paper, no published method existed for estimating adult butterfly exposure to a pesticide applied as an ultra-low volume spray. The paper's findings provide a guideline value for naled deposition that managers can use to minimize the risk of death for adult butterflies. Although there remains uncertainty about the relationship between application rates and deposition levels, the findings are still useful for making decisions about mosquito spraying. The article, Risk assessment for adult butterflies exposed to the mosquito control pesticide naled, was published in the journal Environmental Toxicology and Chemistry. POC: Tim Bargar, firstname.lastname@example.org, (352) 264-3520