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: Upcoming Webinar: "Extreme Climate Events and Species Population Dynamics: Overriding Influence or Not Such a Big Deal?" (April 23)
Join the NE CSC on April 23, 2014 for a presentation by Keith Nislow about population responses to extreme events:
"Extreme Climate Events and Species Population Dynamics: Overriding Influence or Not Such a Big Deal?"
Wednesday, April 23, 2014 - 3:30pm Eastern Daylight Time
Speaker: Keith Nislow, UMass Amherst, Co-Principal Investigator, Northeast Climate Science Center Adjunct Associate Professor of Environmental Conservation
Description: Extreme events (floods, droughts, and fires) have a high public profile and changes in their frequency, magnitude, and duration have been linked to changes in climate. For species populations, these events are often associated with high levels of mortality and major changes in habitat, suggesting a strong influence on population dynamics. At the same time, the life history and reproductive strategy of many species, particularly those associated with highly seasonal and variable climates, may mitigate the long-term effects of extreme events relative to more gradual changes in climate. Given the difficulty of accurately forecasting climate extremes understanding their role in population dynamics is critical for effective management and climate adaptation. In this talk, we review some of the basic determinants of population response to extreme events, using case studies based on long-term data from natural populations in the northeastern region, and present a modeling framework for evaluating the relative impacts of changes in timing, duration, and magnitude. We also consider the potential for human responses to perceived and actual risks from climate extremes to interact with, and in some cases override the direct effects of the events themselves.