Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42768
Volcanic ash deposition, eelgrass beds, and inshore habitat loss from the 1920s to the 1990s at Chignik, Alaska Volcanic ash deposition, eelgrass beds, and inshore habitat loss from the 1920s to the 1990s at Chignik, Alaska
We quantified the shallowing of the seafloor in five of six bays examined in the Chignik region of the Alaska Peninsula, confirming National Ocean Service observations that 1990s hydrographic surveys were shallower than previous surveys from the 1920s. Castle Bay, Chignik Lagoon, Hook Bay, Kujulik Bay and Mud Bay lost volume as calculated from Mean Lower Low Water (Chart Datum) to the...
Authors
Mark Zimmermann, Gregory T. Ruggerone, Jeffrey T. Freymueller, Nicole Kinsman, David H. Ward, Kyle R. Hogrefe
Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon
We used a paired-watershed approach to investigate the effects of contemporary logging practices on headwater populations of coastal cutthroat trout (Oncorhynchus clarkii clarkii) and juvenile coho salmon (Oncorhynchus kisutch) in a second-growth Douglas-fir forested catchment in Oregon. Stream habitat and fish population characteristics, including biomass, abundance, growth, size, and...
Authors
Douglas S. Bateman, Robert E. Gresswell, Dana Warren, David Hockman-Wert, David W. Leer, Jeffrey T. Light, John D. Stednick
Sensitivity of Na+/K+-ATPase isoforms to acid and aluminum explains differential effects on Atlantic salmon osmoregulation in fresh water and seawater Sensitivity of Na+/K+-ATPase isoforms to acid and aluminum explains differential effects on Atlantic salmon osmoregulation in fresh water and seawater
Atlantic salmon (Salmo salar) smolts are sensitive to acid rain and associated increases in dissolved inorganic aluminum (Al) resulting in decreased seawater tolerance at this critical life stage. Salmon have two major isoforms of the catalytic alpha subunit of Na+/K+-ATPase (NKA), with NKAα1a being the major freshwater (FW) isoform and NKAα1b the major seawater (SW) isoform. Here we...
Authors
Amy M. Regish, John T. Kelly, Michael F. O'Dea, Stephen D. McCormick
Convergence of marine megafauna movement patterns in coastal and open oceans Convergence of marine megafauna movement patterns in coastal and open oceans
The extent of increasing anthropogenic impacts on large marine vertebrates partly depends on the animals’ movement patterns. Effective conservation requires identification of the key drivers of movement including intrinsic properties and extrinsic constraints associated with the dynamic nature of the environments the animals inhabit. However, the relative importance of intrinsic versus...
Authors
A. M. M. Sequeira, J.P. Rodriguez, V. M. Eguíluz, R. Harcourt, M. Hindell, D.W. Sims, C.M. Duarte, D.P. Costa, J. Fernandez-Gracia, L.C. Ferreira, G.C. Hays, M. R. Heupel, M.G. Meekan, A. Aven, F. Bailleul, A. M. M. Baylis, M. L. Berumen, C. D. Braun, J. Burns, M.J. Caley, R. Campbell, R.H. Carmichael, E. Clua, L. D. Einoder, Ari Friedlaender, M. E. Goebel, S.D. Goldsworthy, C. Guinet, J. Gunn, D. Hamer, N. Hammerschlag, M. Hammill, L.A. Hückstädt, N.E. Humphries, M.-A. Lea, A. Lowther, A. Mackay, E. McHuron, J. Mckenzie, L. McLeay, C.R. McMahon, K. Mengersen, M. M. C. Muelbert, Anthony M. Pagano, B. Page, N. Queiroz, P. W. Robinson, S. A. Shaffer, M. Shivji, G. B. Skomal, S. Thorrold, S. Villegas-Amtmann, M. Weise, R. Wells, B. Wetherbee, A. Wiebkin, B. Wienecke, M. Thums
DEEP SEARCH: Deep sea exploration to advance research on coral/canyon/cold seep habitats DEEP SEARCH: Deep sea exploration to advance research on coral/canyon/cold seep habitats
Launched in August 2017, Deep Sea Exploration to Advance Research on Coral/Canyon/Cold seep Habitats (DEEP SEARCH) is a multiyear, multi-agency study to characterize the deep-sea ecosystems of the US Mid- and South Atlantic (Figure 1). The study is funded through an interagency partnership between NOAA, the Bureau of Ocean Energy Management (BOEM), and the US Geological Survey, and it is...
Authors
Erik E. Cordes, Amanda W. J. Demopoulos, Gregory Boland, Caitlin Adams
A phylogenetic overview of the genus Vertigo O. F. Müller, 1773 (Gastropoda: Pulmonata: Pupillidae: Vertigininae) A phylogenetic overview of the genus Vertigo O. F. Müller, 1773 (Gastropoda: Pulmonata: Pupillidae: Vertigininae)
We document global phylogenetic pattern in the pupillid land snail genus Vertigo by analyses of nDNA (ITS1 and ITS2) and mtDNA (CytB and 16S) sequence from 424 individuals representing 91 putative specific and subspecific Vertigo taxa. nDNA and mtDNA data were separately subjected to neighbor-joining, minimum evolution, maximum likelihood and Bayesian reconstruction methods, with...
Authors
Jeffrey C. Nekola, Satoshi Chiba, Brian F. Coles, Charles A. Drost, Ted von Proschwitz, Michal Horsak
Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania
In a study conducted by the U.S. Geological Survey, in cooperation with the Pennsylvania Department of Transportation, freshwater mussels were salvaged and relocated from the anticipated zone of impact for the Pond Eddy Bridge construction project in New York and Pennsylvania. Five 25-meter (m) by 25-m cells along the Pennsylvania bank of the Delaware River were sampled in three...
Authors
Heather S. Galbraith, Carrie J. Blakeslee, Jeffrey C. Cole
Non-anthropogenic diet-based oiling of predatory birds Non-anthropogenic diet-based oiling of predatory birds
Oiling of wildlife can have important consequences to individual animals and populations (Kingston 2002). Individual birds that are heavily oiled lose their ability to fly and may become ill or die from hypothermia, starvation, exhaustion, or drowning (Clark 1984, Rocke 1999). For example, large-scale oiling from the Exxon Valdez spill caused local declines in populations of many avian...
Authors
Todd E. Katzner, Daniel Driscoll, Ronald E. Jackman, Peter Bloom, Scott Thomas, Jeff Cooper, Stephen J. Livingstone, Teryl Grubb, Jacqueline M. Doyle, Douglas A. Bell, Joseph Didonato, J. Andrew DeWoody
Smallmouth bass predation on subyearling fall Chinook salmon in Lower Granite Reservoir, 2016–2017 Smallmouth bass predation on subyearling fall Chinook salmon in Lower Granite Reservoir, 2016–2017
Predation by nonnative fishes is one factor that has been implicated in the decline of juvenile salmonids in the Pacific Northwest. Impoundment of much of the Snake and Columbia Rivers has altered food webs and created habitat favorable for species such as smallmouth bass Micropterus dolomieu. Smallmouth bass are common throughout the Columbia River basin and have become the most...
Authors
John M. Erhardt, Kenneth F. Tiffan, Rulon J. Hemingway, Brad K. Bickford, Tobyn N. Rhodes
Chronic wasting disease—Status, science, and management support by the U.S. Geological Survey Chronic wasting disease—Status, science, and management support by the U.S. Geological Survey
The U.S. Geological Survey (USGS) investigates chronic wasting disease (CWD) at multiple science centers and cooperative research units across the Nation and supports the management of CWD through science-based strategies. CWD research conducted by USGS scientists has three strategies: (1) to understand the biology, ecology, and causes and distribution of CWD; (2) to assess and predict...
Authors
Christina M. Carlson, M. Camille Hopkins, Natalie T. Nguyen, Bryan J. Richards, Daniel P. Walsh, W. David Walter
Discovering the deep: Exploring remote Pacific marine protected areas Discovering the deep: Exploring remote Pacific marine protected areas
The 2017 Discovering the Deep expedition provided the first glimpse of the deep-sea geology and ecology of the deepwater regions of Swains Island, the Howland and Baker Islands Unit of PRIMNM, Phoenix Islands Protected Areas (PIPA), and the Tokelau Region (Figure 1). Prior to this expedition, virtually no visual reconnaissance had been conducted in any of these areas below scuba diving...
Authors
Amanda W.J. Demopoulos, Steven Auscavitch, Derek Sowers, Nikolai Pawlenko, Brian R. C. Kennedy
Individual species–area relationships in temperate coniferous forests Individual species–area relationships in temperate coniferous forests
Questions What drives individual species–area relationships in temperate coniferous forests? Location Two 25.6‐ha forest plots on the Pacific Slope of North America, one in California, and one in Washington State. Methods We mapped all trees ≥1 cm in diameter and examined tree species diversity of their local neighbourhoods by calculating the individual species–area relationship for each...
Authors
Adrian J. Das, Andrew J. Larson, James A. Lutz