BLM\u27s ecosystem approach to management

Ecosystem management is about maintaining the health, diversity, and productivity of the land, i.e., clean water, abundant native perennial grasses, sustainable fish populations, healthy watersheds. We will use the ecosystem approach to streamline administrative processes and improve fiscal and environmental accountability. It involves coordinated planning at the local level, forming partnerships, and using good information to manage the land Education is key. The principles of ecosystem management form the philosophic underpinning of a new land ethic with roots in the philosophies of Roosevelt, Pinchot, Leopold, and others

VIDEO: Opening Remarks and Session 1: Welcome, FLPMA in its Historical Context, and Managing our Public Lands under the Multiple Use Mandate (The BLM Directors Panel)

VIDEO: 8:00 a.m. - 8:15 a.m. Welcoming Remarks Speakers: Alice Madden, Executive Director, Getches-Wilkinson Center for Natural Resources, Energy, and the Environment Mark Squillace, University of Colorado School of Law SESSION 1: 8:15 a.m. - 9:10 a.m. FLPMA in its Historical Context Moderator and Commentator: Karin Sheldon, Four Echoes Strategies Speaker: John D. Leshy, Sunderland Distinguished Professor of Property Law Emeritus, University of California, Hastings College of the Law 9:10 a.m. - 10:30 a.m. Managing our Public Lands under the Multiple Use Mandate (The BLM Directors Panel) Moderator and Commentator: Ruth Welch, Colorado State Director, BLM Panelists: Bob Moore, Argonne National Laboratory, former Colorado State Director, BLM Neil Kornze, Director, Bureau of Land Management Mike Dombeck, University of Wisconsin, Stevens Poin

VIDEO: Session 4: Modern Challenges and Modern Solutions, and Session 5: The Future of our Public Lands

VIDEO: 2:50 p.m. - 4:10 p.m. SESSION 4: Modern Challenges and Modern Solutions Moderator and Commentator: Mark Squillace, University of Colorado School of Law Panelists: Dave Theobald, Conservation Science Partners Nada Culver, The Wilderness Society Bret Birdsong, University of Nevada, Las Vegas, School of Law 4:10 p.m. - 5:10 p.m. SESSION 5: The Future of our Public Lands Panelists: John D. Leshy, University of California, Hastings College of the Law Linda Lance, Bureau of Land Management (Invited) Mike Dombeck, University of Wisconsin, Stevens Poin

Parker Solar Probe Evidence for Scattering of Electrons in the Young Solar Wind by Narrowband Whistler-mode Waves

International audienceObservations of plasma waves by the Fields Suite and of electrons by the Solar Wind Electrons Alphas and Protons Investigation on the Parker Solar Probe provide strong evidence for pitch angle scattering of strahl-energy electrons by narrowband whistler-mode waves at radial distances less than similar to 0.3 au. We present two example intervals of a few hours each that include eight waveform captures with whistler-mode waves and 26 representative electron distributions that are examined in detail. Two were narrow, seventeen were clearly broadened, and eight were very broad. The two with narrow strahl occurred when there were either no whistlers or very intermittent low amplitude waves. Six of the eight broadest distributions were associated with intense, long duration waves. Approximately half of the observed electron distributions have features consistent with an energy-dependent scattering mechanism, as would be expected from interactions with narrowband waves. A comparison of the wave power in the whistler-mode frequency band to pitch angle width and a measure of anisotropy provides additional evidence for electron scattering by whistler-mode waves. We estimate the range of resonances based on the wave properties and energies over which broadening is observed. These observations provide strong evidence that the narrowband whistler-mode waves scatter strahl-energy electrons to produce the halo and to reduce the electron heat flux