Drivers of Holocene sea-level change in the Caribbean
Nicole Khan, Erica Ashe, Benjamin P. Horton, Andrea Dutton, Robert E. Kopp, Gilles Brocard, Simon E. Engelhart, David F. Hill, W.R. Peltier, Christopher H. Vane, Fred N. Scatena
2017, Quaternary Science Reviews (155) 13-36
We present a Holocene relative sea-level (RSL) database for the Caribbean region (5°N to 25°N and 55°W to 90°W) that consists of 499 sea-level index points and 238 limiting dates. The database was compiled from multiple sea-level indicators (mangrove peat, microbial mats, beach rock and acroporid and massive corals). We...
Improved vertical streambed flux estimation using multiple diurnal temperature methods in series
Dylan J. Irvine, Martin A. Briggs, Ian Cartwright, Courtney R. Scruggs, Laura K. Lautz
2017, Groundwater (55) 73-80
Analytical solutions that use diurnal temperature signals to estimate vertical fluxes between groundwater and surface water based on either amplitude ratios (Ar) or phase shifts (Δϕ) produce results that rarely agree. Analytical solutions that simultaneously utilize Ar and Δϕ within a single solution have more recently been derived, decreasing uncertainty...
An integrated moral obligation model for landowner conservation norms
Amit K. Pradhananga, Mae A. Davenport, David C. Fulton, Geoffrey M. Maruyama, Dean Current
2017, Society & Natural Resources: An International Journal (30) 212-227
This study applies an integrated moral obligation model to examine the role of environmental and cultural values, and beliefs in the activation of landowner conservation norms. Data for this study were collected through a self-administered survey of riparian landowners in two Minnesota watersheds: Sand Creek and Vermillion River watersheds. Study...
Influence of repeated prescribed fire on tree growth and mortality in Pinus resinosa forests, northern Minnesota
Alessandra Bottero, Anthony W. D’Amato, Brian J. Palik, Christel C. Kern, John B. Bradford, Sawyer S. Scherer
2017, Forest Science (63) 94-100
Prescribed fire is widely used for ecological restoration and fuel reduction in fire-dependent ecosystems, most of which are also prone to drought. Despite the importance of drought in fire-adapted forests, little is known about cumulative effects of repeated prescribed burning on tree growth and related response to drought. Using dendrochronological...
Human footprint affects US carbon balance more than climate change
Dominique Bachelet, Ken Ferschweiler, Tim Sheehan, Barry Baker, Benjamin M. Sleeter, Zhiliang Zhu
2017, Book chapter, Reference Module in Earth Systems and Environmental Sciences
The MC2 model projects an overall increase in carbon capture in conterminous United States during the 21st century while also simulating a rise in fire causing much carbon loss. Carbon sequestration in soils is critical to prevent carbon losses from future disturbances, and we show that natural ecosystems store more...
Mudflat morphodynamics and the impact of sea level rise in South San Francisco Bay
Mick Van der Wegen, Bruce E. Jaffe, Amy C. Foxgrover, Dano Roelvink
2017, Estuaries and Coasts (40) 37-49
Estuarine tidal mudflats form unique habitats and maintain valuable ecosystems. Historic measurements of a mudflat in San Fancsico Bay over the past 150 years suggest the development of a rather stable mudflat profile. This raises questions on its origin and governing processes as well as on the mudflats’ fate under scenarios...
Imaging of earthquake faults using small UAVs as a pathfinder for air and space observations
Andrea Donnellan, Joseph Green, Adnan Ansar, Joseph Aletky, Margaret Glasscoe, Yehuda Ben-Zion, J. Ramon Arrowsmith, Stephen B. DeLong
2017, Conference Paper, 2017 IEEE Aerospace Conference Proceedings
Large earthquakes cause billions of dollars in damage and extensive loss of life and property. Geodetic and topographic imaging provide measurements of transient and long-term crustal deformation needed to monitor fault zones and understand earthquakes. Earthquake-induced strain and rupture characteristics are expressed in topographic features imprinted on the landscapes of...
The waterfall paradox: How knickpoints disconnect hillslope and channel processes, isolating salmonid populations in ideal habitats
Christine May, Joshua J. Roering, Kyle Snow, Kitty Griswold, Robert E. Gresswell
2017, Geomorphology (277) 228-236
Waterfalls create barriers to fish migration, yet hundreds of isolated salmonid populations exist above barriers and have persisted for thousands of years in steep mountainous terrain. Ecological theory indicates that small isolated populations in disturbance-prone landscapes are at greatest risk of extirpation because immigration and recolonization are not possible. On...
Diet patterns of island foxes on San Nicolas Island relative to feral cat removal
Brian L. Cypher, Erica C. Kelly, Francesca J. Ferrara, Charles A. Drost, Tory L. Westall, Brian Hudgens
2017, Pacific Conservation Biology (23) 180-188
Island foxes (Urocyon littoralis) are a species of conservation concern that occur on six of the Channel Islands off the coast of southern California. We analysed island fox diet on San Nicolas Island during 2006–12 to assess the influence of the removal of feral cats (Felis catus) on the food...
Tectonic evolution
Warren J. Nokleberg, James W.H. Monger, David B. Stone, Thomas K. Bundtzen, David W. Scholl
2017, Book chapter, Dynamic geology of the Northern Cordillera (Alaska and Western Canada) and adjacent marine areas: Tectonics, hazards, and resources
The middle Paleozoic through Present tectonic evolution of the Northern Cordillera is portrayed in a series of 15 Tectonic Model figures. These figures depict the successive stages of formation and accretion of orogenic collages along the western margin of the North American Plate (craton and craton margin) and adjacent marine...
A 600-year-long stratigraphic record of tsunamis in south-central Chile
Isabel Hong, Tina Dura, Lisa L. Ely, Benajamin P. Horton, Alan R. Nelson, Marco Cisternas, Daria Nikitina, Robert L. Wesson
2017, The Holocene (27) 39-51
The stratigraphy within coastal river valleys in south-central Chile clarifies and extends the region’s history of large, earthquakes and accompanying tsunamis. Our site at Quidico (38.1°S, 73.3°W) is located in an overlap zone between ruptures of magnitude 8–9 earthquakes in 1960 and 2010, and, therefore, records tsunamis originating from subduction-zone...
Mercury bioaccumulation in estuarine fishes: Novel insights from sulfur stable isotopes
James J. Willacker, Collin A. Eagles-Smith, Joshua T. Ackerman
2017, Environmental Science & Technology (51) 2131-2139
Estuaries are transitional habitats characterized by complex biogeochemical and ecological gradients that result in substantial variation in fish total mercury concentrations (THg). We leveraged these gradients and used carbon (δ13C), nitrogen (δ15N), and sulfur (δ34S) stable isotopes to examine the ecological and biogeochemical processes underlying THg bioaccumulation in fishes from...
Effect of N fertilization and tillage on nitrous oxide (N2O) loss from soil under wheat production
Sheel Bansal, Ezra Aberle, Jasper Teboh, Szilvia Yuja, Mark Liebig, Jacob Meier, Alec Boyd
2017, Report, Carrington Research Extension Center Annual Report, A report of agricultural research and extension in central North Dakota, Vol 58
Nitrous oxide (N2O-N) is one of the most important gases in the atmosphere because it is 300 times more powerful than carbon dioxide in its ability to trap heat, and is a key chemical agent of ozone depletion. The amount of N2O-N emitted from agricultural fields can be quite high,...
Nutrients, phytoplankton, zooplankton, and macrobenthos
Lars G. Rudstam, Kristen T. Holeck, James M. Watkins, Christopher Hotaling, Jana R. Lantry, Kelly L. Bowen, Mohi Munawar, Brian Weidel, Richard Barbiero, Frederick J. Luckey, Alice Dove, Timothy B. Johnson, Zy Biesinger
2017, Special Publication 2017-02
Lower trophic levels support the prey fish on which most sport fish depend. Therefore, understanding the production potential of lower trophic levels is integral to the management of Lake Ontario’s fishery resources. Lower trophic-level productivity differs among offshore and nearshore waters. In the offshore, there is concern about the ability of...
Status and trends in the Lake Superior fish community, 2016
Mark Vinson, Lori M. Evrard, Owen T. Gorman, Daniel Yule
2017, Report, Compiled reports to the Great Lakes Fishery Commission of the annual bottom trawl and acoustics surveys for 2016
In 2016, the Lake Superior fish community was sampled with daytime bottom trawls at 76 nearshore and 35 offshore stations. Spring and summer water temperatures in 2016 were warmer than average and considerably warmer than observed in 2014 and 2015. In the nearshore zone, a total of 17,449 individuals from...
Lake Ontario benthic prey fish assessment, 2016
Brian Weidel, Maureen Walsh, Jeremy P. Holden, Michael J. Connerton
2017, NYSDEC Lake Ontario Annual Report 2016-12b
Benthic prey fishes are a critical component of the Lake Ontario food web, serving as energy vectors from benthic invertebrates to native and introduced piscivores. Beginning in 1978, Lake Ontario benthic prey fishes were assessed using bottom trawls collected from the lake’s south shore (depth range: 8 – 150 m)....
Accurate aging of juvenile salmonids using fork lengths
Suresh Sethi, Jonathon Gerken, Joshua Ashline
2017, Fisheries Research (185) 161-168
Juvenile salmon life history strategies, survival, and habitat interactions may vary by age cohort. However, aging individual juvenile fish using scale reading is time consuming and can be error prone. Fork length data are routinely measured while sampling juvenile salmonids. We explore the performance of aging juvenile fish based solely...
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2016
Betsy L. Bodamer Scarbro, Richard T. Kraus, Patrick Kocovsky, Christopher Vandergoot
2017, Report
<span data-sheets-value="{"1":2,"2":"We conducted a biomass-based assessment of the Lake Erie Western Basin fish community using data collected from 2013-2016 Western Basin (spring and autumn) bottom trawl surveys. Biomass of total catch per hectare has decreased 75 percent since 2013. Declines were observed across all functional groups, but most notable was...
Social-ecological outcomes in recreational fisheries: The interaction of lakeshore development and stocking
Jacob P. Ziegler, Elizabeth J. Golebie, Stuart E. Jones, Brian Weidel, Christopher T. Solomon
2017, Ecological Applications (27) 56-65
Many ecosystems continue to experience rapid transformations due to processes like land use change and resource extraction. A systems approach to maintaining natural resources focuses on how interactions and feedbacks among components of complex social‐ecological systems generate social and ecological outcomes. In recreational fisheries, residential shoreline development and fish stocking...
Effects of topographic data quality on estimates of shallow slope stability using different regolith depth models
Rex L. Baum
2017, Conference Paper, Landslides: Putting Experience, Knowledge and Emerging Technologies into Practice--Proceedings of the 3rd North American Symposium on Landslides: Association of Environmental and Engineering Geologists Special Publication 27
Thickness of colluvium or regolith overlying bedrock or other consolidated materials is a major factor in determining stability of unconsolidated earth materials on steep slopes. Many efforts to model spatially distributed slope stability, for example to assess susceptibility to shallow landslides, have relied on estimates of constant thickness, constant depth,...
Otoliths
James M. Long, Timothy B. Grabowski
Michael C. Quist, Daniel A. Isermann, editor(s)
2017, Book chapter, Age and growth of fishes: Principles and techniques
No abstract available....
Arsenic hazard and associated health risks: New England, USA aquifers
Joseph D. Ayotte
2017, Book chapter, Best practice guide on the control of arsenic in drinking water
No abstract available....
Spatial demographic models to inform conservation planning of golden eagles in renewable energy landscapes
J. David Wiens, Nathan H. Schumaker, Richard D. Inman, Todd C. Esque, Kathleen M. Longshore, Kenneth E. Nussear
2017, Journal of Raptor Research (51) 234-257
Spatial demographic models can help guide monitoring and management activities targeting at-risk species, even in cases where baseline data are lacking. Here, we provide an example of how site-specific changes in land use and anthropogenic stressors can be incorporated into a spatial demographic model to investigate effects on population dynamics...
Mapping tree canopy cover in support of proactive prairie grouse conservation in western North America
Michael J. Falkowski, Jeffrey S. Evans, David E. Naugle, Christian A. Hagen, Scott A. Carleton, Jeremy D. Maestas, Azad Henareh Khalyani, Aaron J. Poznanovic, Andrew J. Lawrence
2017, Rangeland Ecology and Management (70) 15-24
Invasive woody plant expansion is a primary threat driving fragmentation and loss of sagebrush (Artemisia spp.) and prairie habitats across the central and western United States. Expansion of native woody plants, including conifer (primarily Juniperus spp.) and mesquite (Prosopis spp.), over the past century is primarily attributable to wildfire suppression, historic periods of intensive...
A primer to living shorelines
Donna Marie Bilkovic, Molly M. Mitchell, Jason D. Toft, Megan K. LaPeyre
2017, Book chapter, Living shorelines: The science and management of nature-based coastal protection
No abstract available....
