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
Continued feeding on Diporeia by deepwater sculpin in Lake Huron Continued feeding on Diporeia by deepwater sculpin in Lake Huron
Monitoring changes in diets of fish is essential to understanding how food web dynamics respond to changes in native prey abundances. In the Great Lakes, Diporeia, a benthic macroinvertebrate and primary food of native benthivores, declined following the introduction of invasive Dreissena mussels and these changes were reflected in fish diets. We examined the diets of deepwater sculpin
Authors
Patricia A. Thompson, Edward F. Roseman, Kevin M. Keeler, Timothy P. O’Brien, Dustin Bowser
Aquatic-riparian systems Aquatic-riparian systems
No abstract available.
Authors
Deanna H. Olson, Sherri L. Johnson, Paul D. Anderson, Brooke E. Penaluna, Jason B. Dunham
Cessation of oil exposure in harlequin ducks after the Exxon Valdez oil spill: Cytochrome P4501A biomarker evidence Cessation of oil exposure in harlequin ducks after the Exxon Valdez oil spill: Cytochrome P4501A biomarker evidence
The authors quantified hepatic hydrocarbon-inducible cytochrome P4501A (CYP1A) expression, as ethoxyresorufin-O-deethylase (EROD) activity, in wintering harlequin ducks (Histrionicus histrionicus) captured in Prince William Sound, Alaska (USA), during 2011, 2013, and 2014 (22–25 yr following the 1989 Exxon Valdez oil spill). Average EROD activity was compared between birds from areas...
Authors
Daniel Esler, Brenda E. Ballachey, Lizabeth Bowen, A. Keith Miles, Rian D. Dickson, John D. Henderson
Managing the livestock– Wildlife interface on rangelands Managing the livestock– Wildlife interface on rangelands
On rangelands the livestock–wildlife interface is mostly characterized by management actions aimed at controlling problems associated with competition, disease, and depredation. Wildlife communities (especially the large vertebrate species) are typically incompatible with agricultural development because the opportunity costs of wildlife conservation are unaffordable except in arid and...
Authors
Johan T. du Toit, Paul C. Cross, Marion Valeix
National Park Service Vegetation Mapping Inventory Program: Appalachian National Scenic Trail vegetation mapping project National Park Service Vegetation Mapping Inventory Program: Appalachian National Scenic Trail vegetation mapping project
The National Park Service (NPS) Vegetation Mapping Inventory (VMI) Program classifies, describes, and maps existing vegetation of national park units for the NPS Natural Resource Inventory and Monitoring (I&M) Program. The NPS VMI Program is managed by the NPS I&M Division and provides baseline vegetation information to the NPS Natural Resource I&M Program. The U.S. Geological Survey...
Authors
Kevin D. Hop, Andrew C. Strassman, Mark Hall, Shannon Menard, Ery Largay, Stephanie Sattler, Erin E. Hoy, Janis Ruhser, Enrika Hlavacek, Jennifer Dieck
Drawing a line in the sand: Effectiveness of off-highway vehicle management in California's Sonoran desert Drawing a line in the sand: Effectiveness of off-highway vehicle management in California's Sonoran desert
Public land policies manage multiple uses while striving to protect vulnerable plant and wildlife habitats from degradation; yet the effectiveness of such policies are infrequently evaluated, particularly for remote landscapes that are difficult to monitor. We assessed the use and impacts of recreational vehicles on Mojave Desert washes (intermittent streams) in the Chemehuevi Desert...
Authors
Nathan Custer, Lesley A. Defalco, Kenneth E. Nussear, Todd C. Esque
Enhancing public trust in Federal forest management Enhancing public trust in Federal forest management
No abstract available.
Authors
Michael Paul Nelson, Hannah Gosnell, Dana R. Warren, Chelsea Batavia, Matthew Betts, Julia Burton, Emily Jane Davis, Mark Schulze, Catalina Segura, Cheryl Ann Friesen, Steven S. Perakis
Datasheet: Pseudogymnoascus destructans (white-nose syndrome fungus) Datasheet: Pseudogymnoascus destructans (white-nose syndrome fungus)
Pseudogymnoascus destructans is a psychrophilic (cold-loving) fungus that causes white-nose syndrome (WNS), an emerging disease of North American bats that has caused unprecedented population declines. The fungus is believed to have been introduced to North America from Europe or Asia (where it is present but does not cause significant mortality), but the full extent of its native range...
Authors
David S. Blehert, Emily W. Lankau
Freshwater mussels (Unionidae): Central and West Texas Final Report Freshwater mussels (Unionidae): Central and West Texas Final Report
The goal of this study was two-fold: (1) assess the taxonomic identity and phylogenetic placement of Quadrula aurea (Golden Orb) [Federal Candidate], Quadrula houstonensis (Smooth Pimpleback) [Federal Candidate], and Quadrula petrina (Texas Pimpleback) [Federal Candidate] through mitochondrial and nuclear DNA sequencing; and (2) provided additional information on the distribution and...
Authors
Charles R. Randklev, Nathan Johnson, T. J. Miller, J.M. Morton, J. Dudding, K. Skow, B. Boseman, M. Hart, E.T. Tsakiris, K. Inoue, R.R. Lopez
Different historical fire–climate patterns in California Different historical fire–climate patterns in California
The relationship between annual variation in area burned and seasonal temperatures and precipitation was investigated for the major climate divisions in California. Historical analyses showed marked differences in fires on montane and foothill landscapes. Based on roughly a century of data, there are five important lessons on fire–climate relationships in California: (1) seasonal...
Authors
Jon E. Keeley, Alexandra D. Syphard
Ecological regime shift drives declining growth rates of sea turtles throughout the West Atlantic Ecological regime shift drives declining growth rates of sea turtles throughout the West Atlantic
Somatic growth is an integrated, individual-based response to environmental conditions, especially in ectotherms. Growth dynamics of large, mobile animals are particularly useful as bio-indicators of environmental change at regional scales. We assembled growth rate data from throughout the West Atlantic for green turtles, Chelonia mydas, which are long-lived, highly migratory, primarily
Authors
Karen A. Bjorndal, Alan B. Bolten, Milani Chaloupka, Vincent S. Saba, Claudio Bellini, Maria A.G. Marcovaldi, Armando J.B. Santos, Luis Felipe Wurdig Bortolon, Anne B. Meylan, Peter A. Meylan, Jennifer Gray, Robert Hardy, Beth Brost, Michael Bresette, Jonathan C. Gorham, Stephen Connett, Barbara Van Sciver Crouchley, Mike Dawson, Deborah Hayes, Carlos E. Diez, Robert P. van Dam, Sue Willis, Mabel Nava, Kristen M. Hart, Michael S. Cherkiss, Andrew Crowder, Clayton Pollock, Zandy Hillis-Starr, Fernando A. Munoz Teneria, Roberto Herrera-Pavon, Vanessa Labrada-Martagon, Armando Lorences, Ana Negrete-Philippe, Margaret M. Lamont, Allen M. Foley, Rhonda Bailey, Raymond R. Carthy, Russell Scarpino, Erin McMichael, Jane A. Provancha, Annabelle Brooks, Adriana Jardim, Milagros Lopez-Mendilaharsu, Daniel Gonzalez-Paredes, Andres Estrades, Alejandro Fallabrino, Gustavo Martinez-Souza, Gabriela M. Velez-Rubio, Ralf H. Boulon, Jaime Collazo, Robert Wershoven, Vicente Guzman Hernandez, Thomas B. Stringell, Amdeep Sanghera, Peter B. Richardson, Annette C. Broderick, Quinton Phillips, Marta C. Calosso, John A.B. Claydon, Tasha L. Metz, Amanda L. Gordon, Andre M. Landry, Donna J. Shaver, Janice Blumenthal, Lucy Collyer, Brendan J. Godley, Andrew McGowan, Matthew J. Witt, Cathi L. Campbell, Cynthia J. Lagueux, Thomas L. Bethel, Lory Kenyon
Subsequent-year recaptures at winter sites in three species of shrubland sparrows (Emberizidae) Subsequent-year recaptures at winter sites in three species of shrubland sparrows (Emberizidae)
The tendency by individual birds to return to winter sites in subsequent years can be important in assessing the potential influence of habitat changes during the nonbreeding period. We recaptured five Brewer's (Spizella breweri), seven sagebrush (Artemisiospiza nevadensis), and three black-throated (Amphispiza bilineata) sparrows from 1–3 subsequent years at the same winter location...
Authors
Steven T. Knick, Matthias Leu, Steve E. Hanser