Acknowledgments • Introduction: The New Resources of the National Parks—Robert Manning, Peter Newman, Jesse Barber, Christopher Monz, Jeffrey Hallo, and Steven Lawson • PART 1: THE ECOLOGY OF NATURAL QUIET • A Framework for Understanding Noise Impacts on Wildlife: An Urgent Conservation Priority—Clinton Francis and Jesse Barber • A Phantom Road Experiment Reveals Traffic Noise Is an Invisible Source of Habitat Degradation—Heidi Ware, Christopher McClure, Jay Carlisle, and Jesse Barber • Noise Pollution Alters Ecological Services: Enhanced Pollination and Disrupted Seed Dispersal—Clinton Francis, Nathan Kleist, Catherine Ortega, and Alexander Cruz • Anthropogenic Noise Increases Fish Mortality by Predation—Stephen Simpson, Andrew Radford, Sophie Nedelec, Maud Ferrari, Douglas Chivers, Mark McCormick, and Mark Meekan • Light and Noise Pollution Interact to Disrupt Interspecific Interactions—Taegan McMahon, Jason Rohr, and Ximena Bernal • PART 2: THE EXPERIENCE OF NATURAL QUIET • Human Responses to Simulated Motorized Noise in National Parks—David Weinzimmer, Peter Newman, Derrick Taff, Jacob Benfield, Emma Lynch, and Paul Bell • Natural Sound Facilitates Mood Recovery from Stress—Jacob Benfield, Derrick Taff, Peter Newman, and Joshua Smyth • A Program of Research to Support Management of Visitor-Caused Noise at Muir Woods National Monument—Robert Manning, Peter Newman, Kurt Fristrup, David Stack, and Ericka Pilcher • The Role of Messaging on Acceptability of Military Aircraft Sounds in Sequoia National Park—Derrick Taff, Peter Newman, Steven Lawson, Alan Bright, Lelaina Marin, Adam Gibson, and Tim Archer • Modeling and Mapping Hikers’ Exposure to Transportation Noise in Rocky Mountain National Park—Logan Park, Steve Lawson, Ken Kaliski, Peter Newman, and Adam Gibson • PART 3: THE ECOLOGY OF NATURAL DARKNESS • The Ecological Impacts of Nighttime Light Pollution: A Mechanistic Appraisal—Kevin Gaston, Jonathan Bennie, Thomas Davies, and John Hopkins • Reduced Flight-to-Light Behavior of Moth Populations Exposed to Long-Term Urban Light Pollution—Florian Altermatt and Dieter Ebert • Artificial Night Lighting Affects Dawn Song, Extra-Pair Siring Success, and Lay Date in Songbirds—Bart Kempenaers, Pernilla Borgstroem, Peter Loes, Emmi Schlicht, and Mihai Valcu • Artificial Light Puts Ecosystem Services of Frugivorous Bats at Risk—Daniel Lewanzik and Christian Voigt • Light Pollution Is Associated with Earlier Tree Budburst across the United Kingdom—Richard ffrench-Constant, Robin Somers-Yeates, Jonathan Bennie, Theodoros Economou, David Hodgson, Adrian Spalding, and Peter McGregor • PART 4: THE EXPERIENCE OF NATURAL DARKNESS • Preserving Pristine Night Skies in National Parks and the Wilderness Ethic—Dan Duriscoe • A System-Wide Assessment of Night Resources and Night Recreation in the U.S. National Parks—Brandi Smith and Jeffrey Hallo • Indicators and Standards of Quality for Viewing the Night Sky in the National Parks—Robert Manning, Ellen Rovelstad, Chadwick Moore, Jeffrey Hallo, and Brandi Smith • Visitor Evaluation of Night Sky Interpretation—Britton Mace and Jocelyn McDaniel • “Astronomical Tourism—Fredrick Collison and Kevin Poe • CONCLUSION: Principles of Studying and Managing Natural Quiet and Natural Darkness in the National Parks—Robert Manning, Peter Newman, Jesse Barber, Christopher Monz, Jeffrey Hallo, and Steven Lawson • References • Index