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Publications

Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Filter Total Items: 175050

Sight and blindness: The relationship between ostracod eyes, water depth, and light availability in the Arctic Ocean Sight and blindness: The relationship between ostracod eyes, water depth, and light availability in the Arctic Ocean

Eye loss has been a long-standing interest in evolutionary biology. Many organisms that inhabit environments without light penetration, for example the deep sea, exhibit eye loss and thus become blind. However, water-depth distribution of eyes in marine organisms is poorly understood. Ostracods are widely distributed crustaceans, and many sighted marine ostracods have eye tubercles...
Authors
Jingwen Zhang, Moriaki Yasuhara, Chih-Lin Wei, Skye Yunshu Tian, Kyawt K. T. Aye, Laura Gemery, Thomas M. Cronin, Peter Frenzel, David J. Horne

On the survival and habitat use of hatchery-reared cisco (Coregonus artedi) in Lake Erie On the survival and habitat use of hatchery-reared cisco (Coregonus artedi) in Lake Erie

Cisco (Coregonus artedi) have been extirpated from Lake Erie in North America since the 1960s, but they once supported one of the largest Laurentian Great Lakes fisheries. Numerous potential impediments to rehabilitation have been identified, including summer habitat refugia and predation. We used acoustic telemetry to investigate the thermal habitat use and survival of hatchery-reared...
Authors
Richard Kraus, James Markham, Jason Robinson, Thomas MacDougall, Matthew Faust, Joseph Schmitt, Christopher Vandergoot, James E. McKenna, Dimitri Gorsky

Atlas of microscopic images of biochar using reflected light microscopy in biochar characterization Atlas of microscopic images of biochar using reflected light microscopy in biochar characterization

Derived through the thermochemical conversion of biomass, biochar is a carbon-rich substance recognized for its significance in environmental applications and sustainable agriculture. As interest in its utilization continues to rise, it becomes crucial to comprehend how the source material and pyrolysis parameters influence the properties of biochar and, consequently, to research the...
Authors
Agnieszka Drobniak, Maria Mastalerz, Will Knauth, Omid Adarkani, Telma Ataide dos Santos, Valdeci Caio de Faria, Tara Congo, Paul C. Hackley, Javin J. Hatcherian, James C. Hower, Henrik I. Petersen, Julito Reyes, Hamed Sanei

Species richness and distribution of Sphaeriidae surveyed with Environmental DNA metabarcoding Species richness and distribution of Sphaeriidae surveyed with Environmental DNA metabarcoding

Freshwater bivalves of the family Sphaeriidae (fingernail, pea, and pill clams) are difficult to survey and identify due to their small size and overlapping morphological traits. Environmental DNA (eDNA) metabarcoding offers a cost-effective method for assessing species richness and distributional patterns at large scales. We evaluated sphaeriid species richness and distribution at 15...
Authors
Nathaniel T. Marshall, Katy E. Klymus, Carol A. Stepien

U.S. Geological Survey—Northern Prairie Wildlife Research Center 2021–23 research activity report U.S. Geological Survey—Northern Prairie Wildlife Research Center 2021–23 research activity report

The mission of Northern Prairie Wildlife Research Center is to provide scientific information needed to conserve and manage the Nation’s natural capital for current and future generations, with an emphasis on migratory birds, Department of the Interior trust resources, and ecosystems of the Nation’s interior. This report provides an overview of the studies conducted at Northern Prairie...

Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam

The yǻyaguak (Mariana swiftlet, Aerodramus bartschi) is an endangered cave-roosting species native to Guam and southern Mariana Islands, Micronesia. The population on Guam has declined substantially over the last half century, likely due to the introduction of the brown treesnake (Boiga irregularis), but other factors have been proposed including habitat loss, pesticides, reduced food...
Authors
Eben H. Paxton, P. Marcos Gorresen, Paul M. Cryan, Megan Parker

Grand challenges in anticipating and responding to critical materials supply risks Grand challenges in anticipating and responding to critical materials supply risks

Critical materials are resources that are vulnerable to supply disruptions, where those disruptions can have significant adverse impacts on society. In the coming years, materials supply risks associated with the energy transition and geopolitics are likely to intensify and new risks are expected to emerge. This perspective identifies three “Grand Challenges” that represent frontier...
Authors
Anthony Ku, Elisa Alonso, Rod Eggert, Thomas Graedel, Komal Habib, Alessa Hool, Toru Muta, Dieuwertje Schrijvers, Luic Tercero, Tatiana Vakhitova, Constanze Veeh

Changes in microbial community and network structure precede shrub degradation in a desert ecosystem Changes in microbial community and network structure precede shrub degradation in a desert ecosystem

Large-scale restoration is intended to promote ecological recovery. Improvements in plant and microbial conditions, however, may slow or even reverse in late succession. To better understand long-term restoration outcomes and underlying drivers of successional pathways, we tracked plant, bacterial and fungal, and soil conditions across a 40-year shrub plantation that was intended to...
Authors
Guohua Wang, Seth M. Munson, Elly Morrien, Fei Mo, Mengting Maggie Yuan, Bin Wang, Ning Chen, Jian-Sheng Ye, Kailiang Yu

Evaporation from the interior of Lake Okeechobee—A large freshwater lake in Florida, 2013–16 Evaporation from the interior of Lake Okeechobee—A large freshwater lake in Florida, 2013–16

In 2012, a platform at the approximate center of Lake Okeechobee in central Florida was instrumented to continuously measure evaporation with the Bowen-ratio energy-budget method as part of a long-term partnership between the South Florida Water Management District and the U.S. Geological Survey. The primary goal for the study was to quantify daily rates of open-water evaporation. A...
Authors
W. Barclay Shoemaker, Qinglong Wu

Status and understanding of groundwater quality in the Mojave Basin Domestic-Supply Aquifer study unit, 2018—California GAMA Priority Basin Project Status and understanding of groundwater quality in the Mojave Basin Domestic-Supply Aquifer study unit, 2018—California GAMA Priority Basin Project

Groundwater quality in the western part of the Mojave Desert in San Bernardino County, California, was investigated in 2018 as part of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment Program Priority Basin Project. The Mojave Basin Domestic-Supply Aquifer study unit (MOBS) region was divided into two study areas—floodplain and regional—to...
Authors
Krishangi D. Groover, Miranda S. Fram, Zeno F. Levy

An experimental study of benthic habitat selection in yellow-phase American eels (Anguilla rostrata) An experimental study of benthic habitat selection in yellow-phase American eels (Anguilla rostrata)

In a laboratory experiment, we quantified microhabitat use of small yellow-phase American eels (Anguilla rostrata, n = 130, 224–338 mm TL) conditional on five benthic substrate types common to rivers within their geographic range. During nine, 4-day trials replicated with three aquaria, American eels were given a choice to burrow into five equally available benthic substrates: cobble (90...
Authors
Melissa Braham, S.A. Welsh, Dustin M. Smith

Site response in the Walnut Creek–Concord region of the San Francisco Bay, California: Ground motion amplification in a fault-bounded basin Site response in the Walnut Creek–Concord region of the San Francisco Bay, California: Ground motion amplification in a fault-bounded basin

Thirty‐seven portable accelerometers were deployed in the eastern San Francisco Bay communities of Walnut Creek and Concord to study site response in a fault‐bounded, urban, sedimentary basin. Local earthquakes were recorded for a period of two years from 2017 to 2019 resulting in 101 well‐recorded events. Site response is estimated by two methods: the reference site spectral ratio...
Authors
Stephen H. Hartzell, Alena L. Leeds, Leonardo Ramirez-Guzman, Victoria Langenheim, Robert G. Schmitt
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