Publications
Explore WARC's science publications.
Filter Total Items: 3374
Greenhouse gas emissions from a created brackish marsh in eastern North Carolina
Tidal marsh creation helps remediate global warming because tidal wetlands are especially proficient at sequestering carbon (C) in soils. However, greenhouse gas (GHG) losses can offset the climatic benefits gained from C storage depending on how these tidal marshes are constructed and managed. This study attempts to determine the GHG emissions from a 4–6 year old created brackish marsh, what envi
Authors
Yo-Jin Shiau, Michael R. Burchell, Ken W. Krauss, François Birgand, Stephen W. Broome
Contemporary deposition and long-term accumulation of sediment and nutrients by tidal freshwater forested wetlands impacted by sea level rise
Contemporary deposition (artificial marker horizon, 3.5 years) and long-term accumulation rates (210Pb profiles, ~150 years) of sediment and associated carbon (C), nitrogen (N), and phosphorus (P) were measured in wetlands along the tidal Savannah and Waccamaw rivers in the southeastern USA. Four sites along each river spanned an upstream-to-downstream salinification gradient, from upriver tidal f
Authors
Gregory Noe, Cliff R. Hupp, Christopher E. Bernhardt, Ken W. Krauss
Barrier displacement on a neutral landscape: Towards a theory of continental biogeography
Macroevolutionary theory posits three processes leading to lineage diversification and the formation of regional biotas: dispersal (species geographic range expansion), speciation (species lineage splitting), and extinction (species lineage termination). The Theory of Island Biogeography (TIB) predicts species richness values using just two of these processes; dispersal and extinction. Yet most sp
Authors
James S. Albert, Donald Schoolmaster, Victor Tagliacollo, Scott M. Duke-Sylvester
Hydrology of flooded and wetland forests
In this chapter we will examine the hydrology of forested areas that are subject to soil saturation by rain, groundwater, or surface flooding. They include mangroves and other tidal forests, the forested portions of peatlands, and tree dominated wetlands defined by the Ramsar Convention (Mathews 1993). They also include estuarine tidal forests, palustrine forested wetlands, and the portion
Authors
T. M. Williams, Ken W. Krauss, T. Okruszko
Mapping changing distributions of dominant species in oil-contaminated salt marshes of Louisiana using imaging spectroscopy
The April 2010 Deepwater Horizon (DWH) oil spill was the largest coastal spill in U.S. history. Monitoring subsequent change in marsh plant community distributions is critical to assess ecosystem impacts and to establish future coastal management priorities. Strategically deployed airborne imaging spectrometers, like the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), offer the spectral a
Authors
Michael Beland, Dar A. Roberts, Seth H. Peterson, Trent W. Biggs, Raymond F. Kokaly, Sarai Piazza, Keely L. Roth, Shruti Khanna, Susan L. Ustin
Regulation of the hunting season as a tool for adaptive harvest management — First results for pink-footed geese Anser brachyrhynchus
Adjustment of hunting season length is often used to regulate harvest of waterbirds but the effects are disputed. We describe the first results of season length extension on the harvest of the pink-footed goose, which has been selected as the first test case of adaptive harvest management of waterbirds in Europe. In Denmark, the season (previously 1 September to 31 December) was extended to includ
Authors
Jesper Madsen, Kevin K. Clausen, Thomas K. Christensen, Fred A. Johnson
StreamThermal: A software package for calculating thermal metrics from stream temperature data
Improving quality and better availability of continuous stream temperature data allows natural resource managers, particularly in fisheries, to understand associations between different characteristics of stream thermal regimes and stream fishes. However, there is no convenient tool to efficiently characterize multiple metrics reflecting stream thermal regimes with the increasing amount of data.
Authors
Yin-Phan Tsang, Dana M. Infante, Jana S. Stewart, Lizhu Wang, Ralph Tingly, Darren Thornbrugh, Arthur Cooper, Daniel Wesley
Effects of salinity and flooding on post-hurricane regeneration potential in coastal wetland vegetation
PREMISE OF THE STUDY: The nature of regeneration dynamics after hurricane flooding and salinity intrusion may play an important role in shaping coastal vegetation patterns.
METHODS: The regeneration potentials of coastal species, types and gradients (wetland types from seaward to landward) were studied on the Delmarva Peninsula after Hurricane Sandy using seed bank assays to examine responses to v
Authors
Beth A. Middleton
U.S. Geological Survey science strategy for highly pathogenic avian influenza in wildlife and the environment (2016–2020)
IntroductionThrough the Science Strategy for Highly Pathogenic Avian Influenza (HPAI) in Wildlife and the Environment, the USGS will assess avian influenza (AI) dynamics in an ecological context to inform decisions made by resource managers and policymakers from the local to national level. Through collection of unbiased scientific information on the ecology of AI viruses and wildlife hosts in a c
Authors
M. Camille Harris, John M. Pearce, Diann J. Prosser, C. LeAnn White, A. Keith Miles, Jonathan M. Sleeman, Christopher J. Brand, James P. Cronin, Susan De La Cruz, Christine L. Densmore, Thomas W. Doyle, Robert J. Dusek, Joseph P. Fleskes, Paul L. Flint, Gerald F. Guala, Jeffrey S. Hall, Laura E. Hubbard, Randall J. Hunt, Hon S. Ip, Rachel A. Katz, Kevin W. Laurent, Mark P. Miller, Mark D. Munn, Andrew M. Ramey, Kevin D. Richards, Robin E. Russell, Joel P. Stokdyk, John Y. Takekawa, Daniel P. Walsh
Book review: Black bass diversity: Multidisciplinary science for conservation
These proceedings are from the third symposium dedicated to management and conservation of black basses in the genus Micropterus. The first symposium was held in 1975 (R. H. Stroud and H. Clepper. Black Bass Biology and Management. Washington (DC): Sport Fishing Institute) followed 25 years later by Black Bass 2000 (D. P. Philipp and M. S. Ridgway. 2002. Black Bass: Ecology, Conservation, and Mana
Authors
Howard L. Jelks
Inter-annual variability of area-scaled gaseous carbon emissions from wetland soils in the Liaohe Delta, China
Global management of wetlands to suppress greenhouse gas (GHG) emissions, facilitate carbon (C) sequestration, and reduce atmospheric CO2 concentrations while simultaneously promoting agricultural gains is paramount. However, studies that relate variability in CO2 and CH4 emissions at large spatial scales are limited. We investigated three-year emissions of soil CO2 and CH4 from the primary wetlan
Authors
Siyuan Ye, Ken W. Krauss, Hans Brix, Mengjie Wei, Linda Olsson, Xueyang Yu, Yueying Ma, Jin Wang, Hongming Yuan, Guangming Zhao, Xigui Ding, Rebecca Moss
Early life history and spatiotemporal changes in distribution of the rediscovered Suwannee moccasinshell Medionidus walkeri (Bivalvia: Unionidae)
Accurate distribution data are critical to the development of conservation and management strategies for imperiled species, particularly for narrow endemics with life history traits that make them vulnerable to extinction. Medionidus walkeri is a rare freshwater mussel endemic to the Suwannee River Basin in southeastern North America. This species was rediscovered in 2012 after a 16-year hiatus be
Authors
Nathan A. Johnson, John Mcleod, Jordan Holcomb, Matthew T. Rowe, James D. Williams