North Cascades National Park Service Complex
Robert Hoffman, Andrea Woodward, Patricia K. Haggerty, Kurt J. Jenkins, Paul C. Griffin, M. J. Adams, Joan Hagar, Tonnie Cummings, Dan Duriscoe, Karen Kopper, Jon Riedel, Lelaina Marin, Guillaume S. Mauger, Karen Bumbaco, Jeremy S. Littell
2015, Report
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators emphasized in...
Ecological effects of the harvest phase of geoduck clam (Panopea generosa Gould, 1850) aquaculture on infaunal communities in southern Puget Sound, Washington USA.
Glenn R. VanBlaricom, Jennifer L. Eccles, Julian D. Olden, P. Sean Mcdonald
2015, Journal of Shellfish Research (34) 171-187
Intertidal aquaculture for geoducks (Panopea generosa Gould, 1850) is expanding in southern Puget Sound, Washington, where gently sloping sandy beaches are used for field culture. Geoduck aquaculture contributes significantly to the regional economy, but has become controversial because of a range of unresolved questions involving potential biological impacts on marine ecosystems....
Tsunami geology in paleoseismology
Yuichi Nishimura, Bruce E. Jaffe
2015, Report, The Contribution of Palaeoseismology to Seismic Hazard Assessment in Site Evaluation for Nuclear Installations
The 2004 Indian Ocean and 2011 Tohoku-oki disasters dramatically demonstrated the destructiveness and deadliness of tsunamis. For the assessment of future risk posed by tsunamis it is necessary to understand past tsunami events. Recent work on tsunami deposits has provided new information on paleotsunami events, including their recurrence interval and...
2014 National Park visitor spending effects: economic contributions to local communities, states, and the nation
Catherine Cullinane Thomas, Christopher Huber, Lynne Koontz
2015, Natural Resource Report NPS/NRSS/EQD/NRR—2015/947
The National Park System covers more than 84 million acres and is comprised of more than 401 sites across the Nation. These lands managed by the National Park Service (NPS) serve as recreational destinations for visitors from across the Nation and around the world. On vacations or on day trips,...
Coastal sediments
Alan R. Nelson
Ian Shennan, Antony J. Long, Benajamin P. Horton, editor(s)
2015, Book chapter, Handbook of sea-level research
No abstract available....
Spatial patterns of atmospheric deposition of nitrogen and sulfur using ion-exchange resin collectors in Rocky Mountain National Park, USA
David W. Clow, Heidi Roop, Leora Nanus, Mark Fenn, Graham A. Sexstone
2015, Atmospheric Environment (101) 149-157
Lakes and streams in Class 1 wilderness areas in the western United States (U.S.) are at risk from atmospheric deposition of nitrogen (N) and sulfur (S), and protection of these resources is mandated under the Federal Clean Air Act and amendments. Assessment of critical loads, which are the maximum exposure...
Synthesis of current knowledge on post-fire seeding for soil stabilization and invasive species control
Jan L. Beyers, David A. Pyke, Troy Wirth
2015, Report
The General Accounting Office has identified a need for better information on the effectiveness of post-fire emergency stabilization and rehabilitation methods used by the U.S. Forest Service and Department of Interior (DOI) agencies. Since reviews were published on treatment effectiveness in the early 2000s, treatment choices have changed and increased...
Lithobates sylvaticus (wood frog). Habitat use.
Luke A. Groff, Aram J.K. Calhoun, Cynthia S. Loftin
2015, Herpetological Review (46) 234-234
Lithobates sylvaticus is the second most widely distributed anuran in North America (Martof and Humphries 1959. Am. Midl. Nat. 61:350–389), and its habitat use reflects the environmental variation that exists across its geographic range (Semlitsch et al. 2009. BioScience 59:853–862). Although L. sylvaticus post-breeding habitat selection has been described in...
Flood trends: Not higher but more often
Robert M. Hirsch, Stacey A. Archfield
2015, Nature Climate Change (5) 198-199
Heavy precipitation has increased worldwide, but the effect of this on flood magnitude has been difficult to pinpoint. An alternative approach to analysing records shows that, in the central United States, floods have become more frequent but not larger....
Vegetation composition, nutrient, and sediment dynamics along a floodplain landscape
Nancy B. Rybicki, Gregory E. Noe, Cliff R. Hupp, Myles Robinson
2015, River Systems (21) 109-123
Forested floodplains are important landscape features for retaining river nutrients and sediment loads but there is uncertainty in how vegetation influences nutrient and sediment retention. In order to understand the role of vegetation in nutrient and sediment trapping, we quantified species composition and the uptake of nutrients in plant material...
Radio-transmitters have no impact on survival of pre-fledged American Woodcocks
Kyle O. Daly, David E. Andersen, Wayne L. Brininger, Thomas R. Cooper
2015, Journal of Field Ornithology (86) 345-351
American Woodcocks (Scolopax minor) are a high priority species of conservation need across most of their breeding range due to long-term population declines. Survival of juveniles may be key to understanding these population declines, but there have been few direct estimates of juvenile woodcock survival rates, and no recent assessment...
Predicted changes in climatic niche and climate refugia of conservation priority salamander species in the northeastern United States
William B. Sutton, Kyle Barrett, Allison T. Moody, Cynthia S. Loftin, Phillip G. deMaynadier, Priya Nanjappa
2015, Forests (6) 1-26
Global climate change represents one of the most extensive and pervasive threats to wildlife populations. Amphibians, specifically salamanders, are particularly susceptible to the effects of changing climates due to their restrictive physiological requirements and low vagility; however, little is known about which landscapes and species are vulnerable to climate change....
Tornadic storm avoidance behavior in breeding songbirds
Henry M. Streby, Gunnar R. Kramer, Sean M. Peterson, Justin A. Lehman, David A. Buehler, David E. Andersen
2015, Current Biology (25) 98-102
Migration is a common behavior used by animals of many taxa to occupy different habitats during different periods. Migrant birds are categorized as either facultative (i.e., those that are forced to migrate by some proximal cue, often weather) or obligate (i.e., those that migrate on a regular cycle). During migration,...
Angler satisfaction in South Dakota
Kjetil R. Henderson, Larry M. Gigliotti
2015, Proceedings of the South Dakota Academy of Science (94) 171-186
Many industries use satisfaction measures to evaluate performance. The South Dakota Department of Game, Fish and Parks identified satisfaction as one of their performance measures for evaluating fishing in South Dakota. In fisheries management, the perspectives’ of license buyers are valuable to determine if management activities are providing the benefits...
Day-roost tree selection by northern long-eared bats—What do non-roost tree comparisons and one year of data really tell us?
Alexander Silvis, W. Mark Ford, Eric R. Britzke
2015, Global Ecology and Conservation (3) 756-763
Bat day-roost selection often is described through comparisons of day-roosts with randomly selected, and assumed unused, trees. Relatively few studies, however, look at patterns of multi-year selection or compare day-roosts used across years. We explored day-roost selection using 2 years of roost selection data for female northern long-eared bats (Myotis...
Lahars at Cotopaxi and Tungurahua Volcanoes, Ecuador: Highlights from stratigraphy and observational records and related downstream hazards
Patricia A Mothes, James W. Vallance
2015, Book chapter, Volcanic hazards, risks and disasters
Lahars are volcanic debris flows that are dubbed primary when triggered by eruptive activity or secondary when triggered by other factors such as heavy rainfall after eruptive activity has waned. Variation in time and space of the proportion of sediment to water within a lahar dictates lahar flow phase and...
A methodology for quantifying and mapping ecosystem services provided by watersheds
Amy M. Villamagna, Paul L. Angermeier
2015, Book chapter, Ecosystem services and river basin ecohydrology
Watershed processes – physical, chemical, and biological – are the foundation for many benefits that ecosystems provide for human societies. A crucial step toward accurately representing those benefits, so they can ultimately inform decisions about land and water management, is the development of a coherent methodology that can translate available...
Pollen and spores of terrestrial plants
Christopher E. Bernhardt, Debra A. Willard
Ian Shennan, Antony J. Long, Benjamin P. Horton, editor(s)
2015, Book chapter, Handbook of sea-level research
Pollen and spores are valuable tools in reconstructing past sea level and climate because of their ubiquity, abundance, and durability as well as their reciprocity with source vegetation to environmental change (Cronin, 1999; Traverse, 2007; Willard and Bernhardt, 2011). Pollan is found in many sedimentary environments, from freshwater to saltwater,...
How are your berries? Perspectives of Alaska’s environmental managers on trends in wild berry abundance
Jerry W. Hupp, Michael Brubaker, Kira S. Wilkinson, Jennifer Williamson
2015, International Journal of Circumpolar Health (74)
Background: Wild berries are a valued traditional food in Alaska. Phytochemicals in wild berries may contribute to the prevention of vascular disease, cancer and cognitive decline, making berry consumption important to community health in rural areas. Little was known regarding which species of berries were important to...
Evidence for outcrop-scale deformation band faults on Mars from Curiosity rover imagery
Jonathan S. Caine, Ryan B. Anderson, Kenneth E. Herkenhoff, Glynis M. Parrett
2015, Conference Paper
No abstract available....
Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania, (phase V, deliverable 89)
William H. Langer
2015, Open-File Report 2013-1280-R
Previous PRISM reports discuss a variety of industrial minerals. Gypsum, phosphate, salt, stone, sulfur, and ilmenite command the majority of the attention in the earlier geologic reports. (Ilmenite is evaluated in a separate U.S. Geological Survey report in the current study). Asbestos, arsenic, barite, fluorite, and kaolin are listed in...
Evidence for slip partitioning and bimodal slip behavior on a single fault: Surface slip characteristics of the 2013 Mw7.7 Balochistan, Pakistan earthquake
William D. Barnhart, Richard W. Briggs, Nadine G. Reitman, Ryan D. Gold, Gavin P. Hayes
2015, Earth and Planetary Science Letters (420) 1-11
Deformation is commonly accommodated by strain partitioning on multiple, independent strike-slip and dip-slip faults in continental settings of oblique plate convergence. As a corollary, individual faults tend to exhibit one sense of slip – normal, reverse, or strike-slip – until whole-scale changes in boundary conditions reactivate preexisting faults in a...
Impacts of fire management on aboveground tree carbon stocks in Yosemite and Sequoia & Kings Canyon National Parks
John R. Matchett, James A. Lutz, Leland W. Tarnay, Douglas G. Smith, Kendall M.L. Becker, Matthew L. Brooks
2015, Report, Natural Resource Report NPS/SIEN/NRR—2015/910
Forest biomass on Sierra Nevada landscapes constitutes one of the largest carbon stocks in California, and its stability is tightly linked to the factors driving fire regimes. Research suggests that fire suppression, logging, climate change, and present management practices in Sierra Nevada forests have altered historic patterns of landscape carbon...
Time-varying interseismic strain rates and similar seismic ruptures on the Nias-Simeulue patch of the Sunda megathrust
Aron J. Meltzner, Kerry E. Sieh, Hong-Wei Chiang, Chung-Che Wu, Louisa L.H. Tsang, Chuan-Chou Shen, Emma M. Hill, Bambang W. Suwargadi, Danny H. Natawidjaja, Belle Philibosian, Richard W. Briggs
2015, Quaternary Science Reviews (122) 258-281
Fossil coral microatolls from fringing reefs above the great (MW 8.6) megathrust rupture of 2005 record uplift during the historically reported great earthquake of 1861. Such evidence spans nearly the entire 400-km strike length of the 2005 rupture, which was previously shown to be bounded by two persistent barriers...
Determining origin in a migratory marine vertebrate: a novel method to integrate stable isotopes and satellite tracking
Hannah B. Vander Zanden, Anton D. Tucker, Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, David S. Addison, Katherine L. Mansfield, Katrina F. Phillips, Michael B. Wunder, Gabriel J. Bowen, Mariela Pajuelo, Alan B. Bolten, Karen A. Bjorndal
2015, Ecological Applications (25) 320-335
Stable isotope analysis is a useful tool to track animal movements in both terrestrial and marine environments. These intrinsic markers are assimilated through the diet and may exhibit spatial gradients as a result of biogeochemical processes at the base of the food web. In the marine environment, maps to predict...
