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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Limited role of absolute humidity in intraurban heat variability Limited role of absolute humidity in intraurban heat variability
Monitoring and understanding the variability of heat within cities is important for urban planning and public health, and the number of studies measuring intraurban temperature variability is growing. Recognizing that the physiological effects of heat depend on humidity as well as temperature, measurement campaigns have included measurements of relative humidity alongside temperature...
Authors
Darryn W. Waugh, Benjamin Zaitchik, Anna A. Scott, Peter Christian Ibsen, G. Darrel Jenerette, Jason Schartz, Christopher J. Kucharik
Ecological benefits of integrative weed management of Melaleuca quinquenervia in Big Cypress National Preserve Ecological benefits of integrative weed management of Melaleuca quinquenervia in Big Cypress National Preserve
The southern tip of North America coalesces into one of the world’s largest freshwater wetlands, the Everglades, Florida, USA. Though this region is much like an island, home to high biodiversity and endemism, it is also the site of a century of development and associated landscape-scale species invasions. Melaleuca quinquenervia (hereafter melaleuca), a tree native to tropical Australia...
Authors
Melissa C. Smith, Paul Julien, Don DeAngelis, Bo Zhang
Pliocene Model Intercomparison Project Phase 3 (PlioMIP3) – Science plan and experimental design Pliocene Model Intercomparison Project Phase 3 (PlioMIP3) – Science plan and experimental design
The Pliocene Model Intercomparison Project (PlioMIP) was initiated in 2008. Over two phases PlioMIP has helped co-ordinate the experimental design and publication strategy of the community, which has included an increasing number of climate models and modelling groups from around the world. It has engaged with palaeoenvironmental scientists to foster new data synthesis supporting the...
Authors
Alan M Haywood, Julia C. Tindall, Lauren Burton, M.A. Chandler, Aisling M Dolan, Harry J. Dowsett, R. Feng, Tamara Fletcher, Kevin M. Foley, Daniel Hill, Stephen Hunter, B. Otto-Bliesner, D.J. Lunt, Marci M. Robinson, U. Salzmann
Co-production of models to evaluate conservation alternatives for a threatened fish in a rapidly changing landscape Co-production of models to evaluate conservation alternatives for a threatened fish in a rapidly changing landscape
Reintroductions are one means of managing species distributions, but the feasibility of such efforts is uncertain. Here we consider reintroduction for threatened bull trout (Salvelinus confluentus) that currently occupy a small fraction of historically occupied habitats in the upper Klamath River basin owing to climate warming and human modifications of ecosystems. We engaged...
Authors
Joseph R. Benjamin, Jason Dunham, Nolan P. Banish, David K Hering, Zachary Tiemann
Rapid Source Characterization of the 2023 Mw 6.8 Al Haouz, Morocco, Earthquake Rapid Source Characterization of the 2023 Mw 6.8 Al Haouz, Morocco, Earthquake
The U.S. Geological Survey (USGS) National Earthquake Information Center (NEIC) estimates source characteristics of significant damaging earthquakes, aiming to place events within their seismotectonic framework. Contextualizing the 8 September 2023, Mw 6.8 Al Haouz, Morocco, earthquake is challenging, because it occurred in an enigmatic region of active surface faulting, and low...
Authors
William L. Yeck, Alexandra Elise Hatem, Dara Elyse Goldberg, William D. Barnhart, Jessica Ann Thompson Jobe, David R. Shelly, Antonio Villasenor, Harley Benz, Paul S. Earle
Strategic restoration planning for land birds in the Colorado River Delta, Mexico Strategic restoration planning for land birds in the Colorado River Delta, Mexico
Ecological restoration is an essential strategy for mitigating the current biodiversity crisis, yet restoration actions are costly. We used systematic conservation planning principles to design an approach that prioritizes restoration sites for birds and tested it in a riparian forest restoration program in the Colorado River Delta. Restoration goals were to maximize the abundance and...
Authors
Joanna Grand, Timothy D Meehan, William V. Deluca, Julia Morton, Jennifer Pitt, Alejandra Calvo-Fonseca, Chris Dodge, Martha Gómez-Sapiens, Eduardo Gonzalez Sargas, Osvel Hinojosa-Huerta, Pamela L. Nagler, Carlos Restrepo-Giraldo, Patrick B. Shafroth, Stefanny Villagomez-Palma, Chad B Wilsey
Hydrologic changes in the Brazos River Basin and implications for Great Plains fishes Hydrologic changes in the Brazos River Basin and implications for Great Plains fishes
Hydrologic changes in the Brazos River Basin and implications for Great Plains fishes
Authors
Brad D. Wolaver, Lindsay V. Reynolds, Todd Caldwell, Tara Bongiovanni, Jon Paul Pierre, Caroline Breton, Kevin B. Mayes
Managing the threat of infectious disease in fisheries and aquaculture using structured decision making Managing the threat of infectious disease in fisheries and aquaculture using structured decision making
Fisheries and aquaculture provide food and economic security, especially in the developing world, but both face challenges from infectious disease. Here, we consider management of disease issues from a structured decision-making perspective to examine how infectious disease can threaten seafood production and influence management decisions. For both wild fisheries and aquaculture...
Authors
Brian J. Irwin, Megan M. Tomamichel, Marc E. Frischer, Richard J. Hall, Alaina D. E. Davis, Thomas H. Bliss, Pejman Rohani, James E. Byers
Hydration state and rheologic stratification of the lithospheric mantle beneath the North Anatolian Fault, Turkey Hydration state and rheologic stratification of the lithospheric mantle beneath the North Anatolian Fault, Turkey
We present constraints on the hydration state and rheology of the lithospheric mantle beneath the North Anatolian fault zone (NAFZ). Peridotite xenoliths from the Biyikali and Çorlu volcanic centers record deformational microstructures consistent with shearing in a lithosphere-scale transcurrent fault system. Analysis by Fourier transform infrared spectroscopy indicates that nominally...
Authors
Alexander Dmitri Lusk, Vasileios Chatzaras, Ercan Aldanmaz, Basil Tikoff
Perceived constraints to participating in wildlife-related recreation Perceived constraints to participating in wildlife-related recreation
Wildlife-related recreationists play an important role in conservation. Understanding constraints to wildlife-related activities is critical for maintaining or increasing participation in activities like birdwatching and hunting. A mail-out survey was administered to a generalized sample representative of U.S. residents (i.e., not specific to birdwatching or hunting) in early 2017 to...
Authors
Nicholas W. Cole, Emily J. Wilkins, Kaylin Clements, Rudy Schuster, Ashley A. Dayer, H. W. Harshaw, David C. Fulton, Jennifer N. Duberstein, Andrew H. Raedeke
Do seeding and seedling planting result in similar restored plant communities? Do seeding and seedling planting result in similar restored plant communities?
Aims Restoration practitioners often face a tradeoff between low cost but risky seeding vs expensive but more reliable seedling planting to meet revegetation goals. Knowing under what environmental and management conditions direct seeding vs seedling planting benefit different species could improve restoration practice.Methods We compared seed emergence to planted-seedling survival among...
Authors
Bradley J. Butterfield, Seth M. Munson
Bobcat occupancy, tree islands, and invasive Burmese pythons in an Everglades conservation area Bobcat occupancy, tree islands, and invasive Burmese pythons in an Everglades conservation area
Bobcats (Lynx rufus) are terrestrial mammals that also inhabit tree islands (i.e., topographically elevated patches of forested land) embedded in the subtropical Everglades wetlands, which serve as a dry refuge habitat during the wet season in this region of Florida, USA. The Comprehensive Everglades Restoration Plan seeks to restore Everglades water flow to pre-drainage conditions, but...
Authors
Katherine M. Buckman, Laura D’Acunto, Stephanie Romanach, Rachel M. Taylor, Nathan J. Dorn