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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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Simulated global coastal ecosystem responses to a half-century increase in river nitrogen loads Simulated global coastal ecosystem responses to a half-century increase in river nitrogen loads
Coastal ecosystems are increasingly threatened by anthropogenic stressors such as harmful algal blooms and hypoxia projected to intensify through the combined effects of eutrophication and warming. As a major terrestrial nitrogen (N) source to the ocean, rivers play a critical role in shaping both coastal and global biogeochemical cycling. Combining an enhanced-resolution (1/4°), global...
Authors
Xiao Liu, Charles A. Stock, John P. Dunne, Minjin Lee, Elena Shevliakova, Sergey Malyshev, Paul C. D. Milly
Spaceborne InSAR mapping of landslides and subsidence in rapidly deglaciating terrain, Glacier Bay National Park and Preserve and vicinity, Alaska and British Columbia Spaceborne InSAR mapping of landslides and subsidence in rapidly deglaciating terrain, Glacier Bay National Park and Preserve and vicinity, Alaska and British Columbia
The Glacier Bay area in southeastern Alaska and British Columbia, encompassing Glacier Bay National Park and Preserve, has experienced rapid glacier retreat since the end of the Little Ice Age in the mid-1800s. The impact that rapid deglaciation has had on the slope stability of valley walls and on the sedimentation of fans and deltas adjacent to fjords and inlets is an ongoing research...
Authors
Jinwook Kim, Jeffrey A. Coe, Zhong Lu, Nikita N. Avdievitch, Chad Hults
Microbial endophytes and compost improve plant growth in two contrasting types of hard rock mining waste Microbial endophytes and compost improve plant growth in two contrasting types of hard rock mining waste
The re-vegetation of mining wastes with native plants is a comparatively low-cost solution for mine reclamation. However, re-vegetation fails when extreme pH values, low organic matter, or high concentrations of phytotoxic elements inhibit plant establishment and growth. Our aim was to determine whether the combined addition of municipal waste compost and diazotrophic endophytes (i.e
Authors
Courtney Creamer, Mary-Catherine Leewis, Francesca C. Governali, John Freeman, Floyd Gray, Emily G. Wright, Andrea L. Foster
Over the hills and through the farms: Land use and topography influence genetic connectivity of northern leopard frog (Rana pipiens) in the Prairie Pothole Region Over the hills and through the farms: Land use and topography influence genetic connectivity of northern leopard frog (Rana pipiens) in the Prairie Pothole Region
Context Agricultural land-use conversion has fragmented prairie wetland habitats in the Prairie Pothole Region (PPR), an area with one of the most wetland dense regions in the world. This fragmentation can lead to negative consequences for wetland obligate organisms, heightening risk of local extinction and reducing evolutionary potential for populations to adapt to changing environments...
Authors
Justin M. Waraniak, David M. Mushet, Craig A. Stockwell
Estimating the effect of tidal marsh restoration on housing prices: A hedonic analysis in the Nisqually National Wildlife Refuge, Washington, USA Estimating the effect of tidal marsh restoration on housing prices: A hedonic analysis in the Nisqually National Wildlife Refuge, Washington, USA
This study employs the hedonic pricing method and a rich spatial and temporal dataset from two counties in Washington, USA to determine the effect of the 2009 Nisqually Restoration project (NRP) on housing prices in adjacent communities. The NRP restored 308 hectares of wetlands via dike removal in the Billy Frank Jr. Nisqually National Wildlife Refuge (NNWR), leading to improvements in...
Authors
Anthony J. Good, Emily Pindilli
Going beyond low flows: Streamflow drought deficit and duration illuminate distinct spatiotemporal drought patterns and trends in the U.S. during the last century Going beyond low flows: Streamflow drought deficit and duration illuminate distinct spatiotemporal drought patterns and trends in the U.S. during the last century
Streamflow drought is a recurring challenge, and understanding spatiotemporal patterns of past droughts is needed to manage future water resources. We examined regional patterns in streamflow drought metrics and compared these metrics to low flow timing and magnitude using long-term daily records for 555 minimally disturbed watersheds. For each streamgage, we calculated streamflow...
Authors
John C. Hammond, Caelan E. Simeone, Jory Seth Hecht, Glenn A. Hodgkins, Melissa A. Lombard, Gregory J. McCabe, David M. Wolock, Michael Wieczorek, Carolyn G Olson, Todd Caldwell, Robert W. Dudley, Adam N. Price
Fish diversity reduction and assemblage structure homogenization in lakes: A case study on unselective fishing in China Fish diversity reduction and assemblage structure homogenization in lakes: A case study on unselective fishing in China
Unselective fishing involves activities that target the entire assemblage rather than specific fish species, size classes, or trophic levels. This common fishing approach has been in practice for decades in inland waters in China but its implications for biodiversity remain unclear. We addressed this issue by studying fish assemblages in freshwater lakes (five fishing lakes, one...
Authors
Han Liu, Yushun Chen, Rodolphe E. Gozlan, Xiao Qu, Wentong Xia, Fei Cheng, Lizhu Wang, Craig P. Paukert, Julian D. Olden, Songguang Xie
Diminishing Arctic lakes Diminishing Arctic lakes
The Arctic is home to the largest surface water fraction of any terrestrial biome, containing thousands of low-lying lakes. Now, it appears that some Arctic lakes are drying due to rising air temperatures and autumn rains, causing permafrost to thaw and water bodies to drain.
Authors
Rebecca A Finger-Higgens
Hot, wet and rare: Modelling the occupancy dynamics of the narrowly distributed Dixie Valley toad Hot, wet and rare: Modelling the occupancy dynamics of the narrowly distributed Dixie Valley toad
Context: Small population sizes and no possibility of metapopulation rescue put narrowly distributed endemic species under elevated risk of extinction from anthropogenic change. Desert spring wetlands host many endemic species that require aquatic habitat and are isolated by the surrounding xeric terrestrial habitat. Aims: We sought to model the occupancy dynamics of the Dixie Valley...
Authors
Jonathan P. Rose, Patrick M. Kleeman, Brian J. Halstead
Impact of sedimentary basins on Green’s functions for static slip inversion Impact of sedimentary basins on Green’s functions for static slip inversion
Earthquakes often occur in regions with complex material structure, such as sedimentary basins or mantle wedges. However, the majority of co-seismic modelling studies assume a simplified, often homogeneous elastic structure in order to expedite the process of model construction and speed up calculations. These co-seismic forward models are used to produce Green’s functions for finite...
Authors
Leah Langer, Stephen Beller, Evan Tyler Hirakawa, Jeroen Tromp
Spatial and temporal variations in phosphorus loads in the Illinois River Basin, Illinois USA Spatial and temporal variations in phosphorus loads in the Illinois River Basin, Illinois USA
Total phosphorus (TP) loads in many rivers in the north-central United States have increased, including the Illinois River at Valley City, Illinois, USA, which increased 39% from the periods 1989–1996 to 2015–2019 despite efforts to reduce loads from point and nonpoint sources. Here, we quantify long-term variations in phosphorus (P) loads in the Illinois River and its tributaries and...
Authors
Gregory F. McIsaac, Timothy O. Hodson, Momvcilo Markus, Rabin Bhattarai, Daniel Chulgi Kim
A recombinant rabies vaccine that prevents viral shedding in rabid common vampire bats (Desmodus rotundus) A recombinant rabies vaccine that prevents viral shedding in rabid common vampire bats (Desmodus rotundus)
Vampire bat transmitted rabies (VBR) is a continuing burden to public health and agricultural sectors in Latin America, despite decades-long efforts to control the disease by culling bat populations. Culling has been shown to disperse bats, leading to an increased spread of rabies. Thus, non-lethal strategies to control VBR, such as vaccination, are desired. Here, we evaluated the safety...
Authors
Elsa M. Cardenas-Canales, Andres Velasco-Villa, James A. Ellison, Panayampalli S. Satheshkumar, Jorge E. Osario, Tonie E. Rocke