Fire and invasive plants
Robert C. Klinger, Matthew L. Brooks, John M. Randall
2018, Book chapter, Fire in California's ecosystems
No abstract available....
Movement patterns of California brown pelicans (Pelecanus occidentalis californicus) following oiling and rehabilitation
J. S. Lamb, C. V. Fiorello, Yvan G. Satge, K. Mills, M. Ziccardi, Patrick G.R. Jodice
2018, Marine Pollution Bulletin (131) 22-31
Direct mortality of wildlife is generally used to quantify the damage caused by pollution events. However, free-ranging wildlife that survive initial exposure to pollutants may also experience long-term consequences. Individuals that are rehabilitated following oil exposure have a known history of oiling and provide a useful study population for understanding behavior following...
The map as knowledge base
Dalia E. Varanka, E. Lynn Usery
2018, International Journal of Cartography (4) 201-223
This paper examines the concept and implementation of a map as a knowledge base. A map as a knowledge base means that the visual map is not only the descriptive compilation of data and design principles, but also involves a compilation of semantic propositions and logical predicates that create a...
Advancing marine biological observations and data requirements of the complementary Essential Ocean Variables (EOVs) and Essential Biodiversity Variables (EBVs) Frameworks
Frank E. Muller-Karger, Patricia Miloslavich, Nicholas Bax, Samantha E. Simmons, Mark John Costello, Isabel Sousa Pinto, Gabrielle Canonico, Woody Turner, Michael J. Gill, Enrique Montes, Benjamin D. Best, Jay Pearlman, Patrick N. Halpin, Daniel Dunn, Abigail L. Benson, Corinne S. Martin, Lauren Weatherdon, Ward Appeltans, Pieter Provoost, Eduardo Klein, Christopher R. Kelble, Robert J. Miller, Francisco P. Chavez, Katrin Iken, Sanae Chiba, David Obura, Laetitia M. Navarro, Henrique M. Pereira, Valerie Allain, Sonia Batten, Lisandro Benedetti-Checchi, J. Emmett Duffy, Raphael M. Kudela, Lisa-Maria Rebelo, Yunne Shin, Gary Geller
2018, Frontiers in Marine Science (5) 1-15
Measurements of the status and trends of key indicators for the ocean and marine life are required to inform policy and management in the context of growing human uses of marine resources, coastal development, and climate change. Two synergistic efforts identify specific priority variables for monitoring: Essential Ocean Variables (EOVs)...
Anticipatory natural resource science and management for a changing future
John B. Bradford, Julio L. Betancourt, Bradley J. Butterfield, Seth M. Munson, Troy E. Wood
2018, Frontiers in Ecology and the Environment (16) 295-303
Prolonged shifts in long‐term average climate conditions and increasing variability in short‐term weather conditions affect ecological processes, and represent a fundamental challenge for natural resource management. Recent and forthcoming advances in climate predictability may offer novel opportunities, but capitalizing on these opportunities will require focusing scientific research on understanding the...
Factors affecting nesting ecology of Apalone spinifera in a northwestern Great Plains river of the United States
Brian J. Tornabene, Robert G. Bramblett, Alexander V. Zale, Stephen A. Leathe
2018, Chelonian Conservation and Biology (17) 63-77
The nesting ecology of Apalone spinifera in large North American rivers is largely unknown despite the wide distribution of the species in these naturally dynamic ecosystems. We describe the nesting locations, timing, behavior, and habitat of A. spinifera in relation to natural and anthropogenic factors in the Missouri River. Nesting followed annual peak river...
Automated extraction of surface water extent from Sentinel-1 data
Wenli Huang, Ben DeVries, Chengquan Huang, Megan W. Lang, John Jones, Irena F. Creed, Mark L. Carroll
2018, Remote Sensing (10) 1-18
Accurately quantifying surface water extent in wetlands is critical to understanding their role in ecosystem processes. However, current regional- to global-scale surface water products lack the spatial or temporal resolution necessary to characterize heterogeneous or variable wetlands. Here, we proposed a fully automatic classification tree approach to classify surface water...
Cumulative spring discharge and survey effort influence occupancy and detection of a threatened freshwater mussel, the Suwannee Moccasinshell
Jordan M. Holcomb, Colin P. Shea, Nathan A. Johnson
2018, Journal of Fish and Wildlife Management (9) 95-105
Freshwater mussels (Unionidae) are among the most imperiled groups of organisms in the world, and the lack of information regarding species distributions, life-history characteristics, and ecological and biological requirements may limit the protection of remaining mussel populations. We examined the influence of hydrologic factors on the occurrence of the Suwannee...
Infection by Nanophyetus salmincola and toxic contaminant exposure in out‐migrating steelhead from Puget Sound, Washington: Implications for early marine survival
M.F. Chen, S. M. O’Neill, A. J. Carey, R. H. Conrad, B.A. Stewart, K. R. Snekvik, G. M. Ylitalo, Paul Hershberger
2018, Journal of Aquatic Animal Health (30) 103-118
Out‐migrating steelhead Oncorhynchus mykiss from four Puget Sound rivers and associated marine basins of Puget Sound in Washington State were examined for the parasite, Nanophyetus salmincola in 2014 to determine whether recent trends in reduced marine survival are associated with the presence of this pathogen. A subset of steelhead from three of these river–marine...
Genetic mark–recapture improves estimates of maternity colony size for Indiana bats
Sara J. Oyler-McCance, Jennifer A. Fike, Paul M. Lukacs, Dale W. Sparks, Thomas J. O’Shea, John O. Whitaker Jr.
2018, Journal of Fish and Wildlife Management (9) 25-35
Genetic mark–recapture methods are increasingly being used to estimate demographic parameters in species where traditional techniques are problematic or imprecise. The federally endangered Indiana bat Myotis sodalis has declined dramatically and threats such as white-nose syndrome continue to afflict this species. To date, important demographic information for Indiana bats has been difficult...
Long-term effects of fire and harvest on carbon stocks of boreal forests in northeastern China
Chao Huang, Hong S. He, Yu Liang, Zhiwei Wu, Todd Hawbaker, Peng Gong, Zhiliang Zhu
2018, Annals of Forest Science (75)
ContextBoreal forests represent about one third of forest area and one third of forest carbon stocks on the Earth. Carbon stocks of boreal forests are sensitive to climate change, natural disturbances, and human activities.AimsThe objectives of this study were to...
Variation in age ratio of midcontinent greater white-fronted geese during fall migration
Wade G. Schock, Julian B. Fischer, Craig R. Ely, Robert A. Stehn, Jeffery M. Welker, Douglas Causey
2018, Journal of Fish and Wildlife Management (9) 340-347
Annual productivity is an important parameter for the management of waterfowl populations. Fall age ratio (juveniles:total birds) is an index of productivity of the preceding breeding season. However, differences in the timing of migration between family groups and nonbreeding birds may bias age-ratio estimates. We examined temporal variation in age...
Spatial and temporal patterns in population trends and burrow usage of burrowing owls in North America
Courtney J. Conway
2018, Journal of Raptor Research (52) 129-142
Many researchers have suggested that abundance of Burrowing Owls (Athene cunicularia) has declined in many portions of their breeding range, but a thorough review of their population trends over time is lacking. Published population trends from the North American Breeding Bird Survey program suggested that Burrowing Owl populations in the...
Three-dimensional modeling of fine sediment transport by waves and currents in a shallow estuary
Yi-Ju Chou, Kurt S. Nelson, Rusty C. Holleman, Oliver B. Fringer, Mark T. Stacey, Jessica R. Lacy, Stephen G. Monismith, Jeffrey R. Koseff
2018, Journal of Geophysical Research C: Oceans (123) 4177-4199
A suspended sediment transport model is implemented in the unstructured‐grid SUNTANS model and applied to study fine‐grained sediment transport in South San Francisco Bay. The model enables calculation of suspension of bottom sediment based on combined forcing of tidal currents and wind waves. We show that accurate results can be...
Benthic foraminifera from the Carnarvon Ramp reveal variability in Leeuwin Current activity (Western Australia) since the Pliocene
Christian Haller, Pamela Hallock, Albert C. Hine, Christopher G. Smith
2018, Marine Micropaleontology (142) 25-39
Benthic foraminiferal assemblages from a ~300 m deep core from an outer carbonate-ramp site off Western Australia (International Ocean Discovery Program Core U1460A) were examined to reconstruct the paleoceanographic evolution of the Carnarvon Ramp and the warm surficial Leeuwin Current (LC) for the last 3.54 Ma. Of the identified 179...
Quantifying ecosystem service flows at multiple scales across the range of a long-distance migratory species
Darius J. Semmens, James E. Diffendorfer, Kenneth J. Bagstad, Ruscena Wiederholt, Karen Oberhauser, Leslie Ries, Brice X. Semmens, Joshua Goldstein, John B. Loomis, Wayne E. Thogmartin, Brady J. Mattsson, Laura Lopez-Hoffman
2018, Ecosystem Services (31) 255-264
Migratory species provide ecosystem goods and services throughout their annual cycles, often over long distances. Designing effective conservation solutions for migratory species requires knowledge of both species ecology and the socioeconomic context of their migrations. We present a framework built around the concept that migratory species act as carriers, delivering...
President elect's message
Beth A. Middleton
2018, Wetland Science & Practice (June 2018) 50-50
The first morning home the day after I became president of SWS at the annual meeting in Denver, I note the wilting of my garden and the grumpiness of my cats as the dawn of my new reality. The extra hours that I will spend as president of SWS will...
Site-scale disturbance best predicts moss, vascular plant, and amphibian indices in Ohio wetlands
Martin A. Stapanian, Mick Micacchion, Brian Gara, William Schumacher, Jean V. Adams
2018, Ecological Restoration (36) 145-156
Loss of wetland habitats and their associated biological communities is a major environmental concern. Quality assessment indices (QAIs) and indices of biological integrity (IBIs) are useful for assessing the responses of taxa to wetland habitat quality and land use in the surrounding landscape. We synthesized the results of our previous...
Mapping cropland waterway buffers for switchgrass development in the eastern Great Plains, USA
Yingxin Gu, Bruce K. Wylie
2018, Global Change Biology Bioenergy (10) 415-424
Switchgrass (Panicum virgatum L.), a highly productive perennial grass, has been recommended as one potential source for cellulosic biofuel feedstocks. Previous studies indicate that planting perennial grasses (e.g., switchgrass) in high‐topographic‐relief cropland waterway buffers can improve local environmental conditions and sustainability. The main advantages of this land management practice include (i)...
Improved conventional PCR assay for detecting Tetracapsuloides bryosalmonae DNA in fish tissues
Patrick R. Hutchins, Adam J. Sepulveda, Renee M. Martin, Lacey R. Hopper
2018, Journal of Aquatic Animal Health (30) 164-170
Conventional PCR is an established method to detect Tetracapsuloides bryosalmonaeDNA in fish tissues and to confirm diagnosis of proliferative kidney disease (PKD) caused by T. bryosalmonae. However, the commonly used PKX5f‐6r primers were designed with the intention of obtaining sequence information and are suboptimal for determining parasite DNA presence. A new PCR...
Associations of intestinal helminth infections with health parameters of spring-migrating female lesser scaup (Aythya affinis) in the upper Midwest, USA
J. Conner England, Jeffrey M. Levengood, Josh M. Osborn, Aaron P. Yetter, C. D. Suski, Rebecca A. Cole, Heath M. Hagy
2018, Parasitology Research (117) 1877-1890
Thousands of lesser scaup (Aythya affinis) die during spring and fall migrations through the upper Midwest, USA, from infections with Cyathocotyle bushiensis and Sphaeridiotrema spp. (Class: Trematoda) after ingesting infected intermediate hosts, such as non-native faucet snails (Bithynia tentaculata). The lesser scaup is a species of...
burnr: Fire history analysis and graphics in R
Steven B. Malevich, Christopher H. Guiterman, Ellis Q. Margolis
2018, Dendrochronologia (49) 9-15
We developed a new software package, burnr, for fire history analysis and plotting in the Rstatistical programming environment. It was developed for tree-ring fire-scar analysis, but is broadly applicable to other event analyses (e.g., avalanches, frost rings, or culturally modified trees). Our new package can read, write, and manipulate standard tree-ring fire history FHX...
Using the NHD, WBD, and NHDPlus to solve problems
Kernell G. Ries III, Peter A. Steeves
2018, Book chapter, GIS for surface water: Using the National Hydrography Dataset
No abstract available....
Seabird colony registry and atlas for the southeastern U.S.
L.M. Ferguson, Y. G. Satgé, J. Tavano, Patrick G.R. Jodice
2018, Report
No abstract available....
New insights on scale-dependent surface-groundwater exchange from a floating self-potential Dipole
Scott Ikard, Andrew P. Teeple, Jason Payne, Gregory P. Stanton, J. Ryan Banta
2018, Journal of Environmental & Engineering Geophysics (23) 261-287
In south-central Texas the lower Guadalupe River has incised into the outcrop of the Carrizo-Wilcox aquifer. The river and the aquifer are hydraulically connected across the outcrop, although the connectivity is obscured at the surface by alluvium and surface-water and groundwater exchange dynamics are currently poorly understood. To investigate surface-water...
