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Reports

Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 84733

The 3D Elevation Program—Supporting the economy of Massachusetts The 3D Elevation Program—Supporting the economy of Massachusetts

Introduction Massachusetts extends from the mountains of the Appalachian system in the west of the State to the sandy beaches and rocky shorelines of the Atlantic coast in the east. Inland topographic data support a wide range of important activities, including geologic mapping, transportation planning, forest and wildlife management, quantifying ecological services, water supply...
Authors
Dan Walters

Analysis of trends in terrestrial vegetation at Mediterranean Coast Network Parks: Channel Islands National Park Analysis of trends in terrestrial vegetation at Mediterranean Coast Network Parks: Channel Islands National Park

The five islands comprising Channel Islands National Park (CHIS) experience natural gradients in temperature and moisture driven by ocean currents. Additionally, the islands were used as ranchlands and military land before becoming a national park, resulting in widespread erosion and vegetation change. As a result, CHIS spans gradients in climate as well as ranching duration and time...
Authors
Leigh Ann Starcevich, Christopher Murray, Lena F.S. Lee, Cameron B. Williams, Kathryn McEachern

Statistical streamflow comparison of current and historical 30-year periods for selected streams in New Jersey Statistical streamflow comparison of current and historical 30-year periods for selected streams in New Jersey

As the population of New Jersey increases, supplying adequate drinking water to meet demand remains a high priority. To better understand potential streamflow trends over time, the U.S. Geological Survey completed a study comparing low flows at continuous- and partial-record streamgages in New Jersey between a historical period (1950–79) and a current period (1990–2019). Fourteen...
Authors
Brianna Williams, Samantha L. Sullivan, Thomas P. Suro, Jerilyn V. Collenburg, Amy R. McHugh, Jennifer L. Shourds

Update to a management-focused population viability analysis for North Atlantic right whales Update to a management-focused population viability analysis for North Atlantic right whales

We provide an update to the recently published population viability analysis for North Atlantic right whales (Eubalaena glacialis). The update includes improvements to the reproduction modeling and also shares additional context given evidence of reduced mortality indicated by recent population monitoring. Projections from the analysis are used to quantify simulated population sizes...
Authors
Daniel Linden, Michael C. Runge, J. A. Hostetler, Diane Borggaard, Lance Garrison, Amy R. Knowlton, Véronique Lesage, Robert A. Williams, Richard Pace III

OFFLU guidelines for high pathogenicity avian influenza virus risk mitigation in cattle OFFLU guidelines for high pathogenicity avian influenza virus risk mitigation in cattle

No abstract available.
Authors
Lorcan Carnegie, Hélène Duault, Folorunso Fasina, Yuka Moribe, Mariana Delgado, Gounalan Pavade, Gregorio Torres, Beatriz Martínez-López, Christopher Hamilton-West, Laura Robertson, Steve Hinchliffe, Diann J. Prosser, Nick Lyons, Dirk Pfeiffer, Guillaume Fournié

Water temperature analysis of the North Branch Au Sable River, Michigan, and implications to salmonid populations Water temperature analysis of the North Branch Au Sable River, Michigan, and implications to salmonid populations

Ambient stream water temperatures affect salmonid movement and survival with fish actively seeking thermal refugia from warming waters. This study sought to investigate the potential role of water temperature in the perceived decline in native Brook Trout Salvelinus fontinalis and non-native Brown Trout Salmo trutta populations in the North Branch Au Sable River by fishers and reported...
Authors
Nicole M. Watson, Daniel B. Hayes, Neal Godby
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