The swing of it: Hammock camping
Jeffrey L. Marion
2016, A.T. Journeys (Spring 2016) 12-18
Hammock camping is dramatically expanding along the Appalachian Trail and raising both questions and concerns among Trail land managers, club members, and backpackers. This article examines some of the advantages and disadvantages of hammock camping, including resource and social impacts. Some Leave No Trace hammock camping practices are included for...
Acadia National Park Climate Change Scenario Planning Workshop summary
Jonathan Star, Nicholas Fisichelli, Alexander Bryan, Amanda Babson, Rebecca Cole-Will, Abraham J. Miller-Rushing
2016, Conference Paper
This report summarizes outcomes from a two-day scenario planning workshop for Acadia National Park, Maine (ACAD). The primary objective of the workshop was to help ACAD senior leadership make management and planning decisions based on up-to-date climate science and assessments of future uncertainty. The workshop was also designed as a...
Targets set to reduce Lake Erie algae
Mary Anne Evans
2016, Report, Michigan State of the Great Lakes
In February 2016, the Great Lakes Executive Committee, which oversees the implementation of the Great Lakes Water Quality Agreement (GLWQA) between the U.S. and Canada, approved phosphorus loading targets for Lake Erie to reduce the size of harmful algal blooms (HABs), reduce the presence of the low oxygen zone in...
Getting quantitative about consequences of cross-ecosystem resource subsidies on recipient consumers
John S. Richardson, Mark S. Wipfli
2016, Canadian Journal of Fisheries and Aquatic Sciences (73) 1609-1615
Most studies of cross-ecosystem resource subsidies have demonstrated positive effects on recipient consumer populations, often with very large effect sizes. However, it is important to move beyond these initial addition–exclusion experiments to consider the quantitative consequences for populations across gradients in the rates and quality of resource inputs. In our...
Decision analysis for habitat conservation of an endangered, range-limited salamander
Orin J. Robinson, Conor P. McGowan, J.J. Apodaca
2016, Animal Conservation (19) 561-569
Many species of conservation concern are habitat limited and often a major focus of management for these species is habitat acquisition and/or restoration. Deciding the location of habitat restoration or acquisition to best benefit a protected species can be a complicated subject with competing management objectives, ecological uncertainties and stochasticity....
CDMetaPOP: An individual-based, eco-evolutionary model for spatially explicit simulation of landscape demogenetics
Erin L. Landguth, Andrew Bearlin, Casey Day, Jason B. Dunham
2016, Methods in Ecology and Evolution (8) 4-11
1. Combining landscape demographic and genetics models offers powerful methods for addressing questions for eco-evolutionary applications.2. Using two illustrative examples, we present Cost–Distance Meta-POPulation, a program to simulate changes in neutral and/or selection-driven genotypes through time as a function of individual-based movement, complex spatial population dynamics, and multiple and...
Cobalt-rich manganese crusts
James R. Hein
Jan Harff, Martin Meschede, Sven Petersen, Jorn Thiede, editor(s)
2016, Book chapter, Encyclopedia of marine geosciences
No abstract available....
Soil mercury distribution in adjacent coniferous and deciduous stands highly impacted by acid rain in the Ore Mountains, Czech Republic
Tomáš Navrátil, James B. Shanley, Jan Rohovec, Filip Oulehle, Martin Simecek, Jakub Houska, Pavel Cudlin
2016, Applied Geochemistry (75) 63-75
Forests play a primary role in the cycling and storage of mercury (Hg) in terrestrial ecosystems. This study aimed to assess differences in Hg cycling and storage resulting from different vegetation at two adjacent forest stands - beech and spruce. The study site Načetín in the Czech Republic's Black Triangle...
Field and laboratory determination of water-surface elevation and velocity using noncontact measurements
Jonathan M. Nelson, Paul J. Kinzel, Mark Walter Schmeeckle, Richard R. McDonald, Justin T. Minear
2016, Conference Paper, Proceedings of the 20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research
Noncontact methods for measuring water-surface elevation and velocity in laboratory flumes and rivers are presented with examples. Water-surface elevations are measured using an array of acoustic transducers in the laboratory and using laser scanning in field situations. Water-surface velocities are based on using particle image velocimetry or other machine vision...
Animated tectonic reconstruction of the Lower Colorado River region: Implications for Late Miocene to Present deformation
Scott E.K. Bennett, Michael H. Darin, Rebecca J. Dorsey, Lisa A. Skinner, Paul J. Umhoefer, Michael E. Oskin
2016, Conference Paper, Going LOCO Investigations along the Lower Colorado River - 2016 Desert Symposium Field Guide and Proceedings
Although the majority of late Miocene to present Pacific-North America plate boundary strain has been accommodated by faults of the San Andreas and Gulf of California systems, growing evidence of dextral shear east of the San Andreas Fault indicates that a component of plate boundary deformation occurred in the lower...
The role of science through a century of elk and habitat management at Rocky Mountain National Park
Therese L. Johnson, Linda Zeigenfuss, N. Thompson Hobbs, John A. Mack
2016, Park Science (32) 70-72
Over the past century elk (Cervus elaphus) management in Rocky Mountain National Park has evolved along with NPS policy, social values, and an improved understanding of the role of elk in the ecosystem. Science has played an important part in shaping management approaches through the application of monitoring and research (Monello...
Polyoxyethylene tallow amine, a glyphosate formulation adjuvant: Soil adsorption characteristics, degradation profile, and occurrence on selected soils from agricultural fields in Iowa, Illinois, Indiana, Kansas, Mississippi, and Missouri
Daniel L. Tush, Michael T. Meyer
2016, Environmental Science & Technology (50) 5781-5789
Polyoxyethylene tallow amine (POEA) is an inert ingredient added to formulations of glyphosate, the most widely applied agricultural herbicide. POEA has been shown to have toxic effects to some aquatic organisms making the potential transport of POEA from the application site into the environment an important concern. This study characterized...
Estimating abundance: Chapter 27
J. Andrew Royle
2016, Book chapter, Reptile ecology and conservation: A handbook of techniques
This chapter provides a non-technical overview of ‘closed population capture–recapture’ models, a class of well-established models that are widely applied in ecology, such as removal sampling, covariate models, and distance sampling. These methods are regularly adopted for studies of reptiles, in order to estimate abundance from counts of marked individuals...
Estimating abundance
Chris Sutherland, J. Andrew Royle
2016, Book chapter, Reptile ecology and conservation: A handbook of techniques
This chapter provides a non-technical overview of ‘closed population capture–recapture’ models, a class of well-established models that are widely applied in ecology, such as removal sampling, covariate models, and distance sampling. These methods are regularly adopted for studies of reptiles, in order to estimate abundance from counts of marked individuals...
Regional and local correlations of feldspar geochemistry of the Peach Spring Tuff, Alvord Mountain, California
David C. Buesch
2016, Conference Paper, Mojave Miocene: Desert Symposium 2015
The chemical composition of feldspar grains in an ignimbrite from the Spanish Canyon Formation in the Alvord Mountain area, California, have been used to confirm similarities in three measured sections locally, and they are similar to exposures of the Peach Spring Tuff (PST) regionally. Feldspar grains were identified on the...
Identification of Neosho Smallmouth Bass (Micropterus dolomieu velox) stocks for possible introduction into Grand Lake, Oklahoma
Andrew T. Taylor, James M. Long, Michael R. Schwemm, Michael D. Tringali, Shannon K. Brewer
2016, Cooperator Science Series FWS/CSS-121-2016
Stocking black basses (Micropterus spp.) is a common practice used to increase angling opportunities in impoundments; however, when non-native black basses are introduced they often invade riverine habitats where they threaten the persistence of other fishes, including native black basses. Neosho Smallmouth Bass (M. dolomieu velox) is endemic to portions...
Ecology and conservation of Lesser Prairie-Chickens
David A. Haukos, Clint W. Boal, editor(s)
2016, Book
Lesser Prairie-Chickens have experienced substantial declines in terms of population and the extent of area that they occupy. While they are an elusive species, making it difficult at times to monitor them, current evidence indicates that they have been persistently decreasing in number since the Dust Bowl of the 1930s...
Estimating black bear density in New Mexico using noninvasive genetic sampling coupled with spatially explicit capture-recapture methods
Matthew J. Gould, James W. Cain III, Gary W. Roemer, William R. Gould
2016, Cooperator Science Series FWS/CSS-120-2016
During the 2004–2005 to 2015–2016 hunting seasons, the New Mexico Department of Game and Fish (NMDGF) estimated black bear abundance (Ursus americanus) across the state by coupling density estimates with the distribution of primary habitat generated by Costello et al. (2001). These estimates have been used to set harvest limits....
Evaluation and refinement of Guadalupe Bass conservation strategies to support adaptive management
Timothy B. Grabowski
2016, Cooperator Science Series FWS/CSS-118-2016
Burbot Lota lota is the sole freshwater representative of the cod-like fishes and supports subsistence, commercial, and recreational fisheries worldwide above approximately 40° N. It is a difficult species to manage effectively due to its preference for deep-water habitats and spawning activity under the ice in winter. Like other gadiform...
Prioritizing landscapes for longleaf pine conservation
J. Barry Grand, Kevin J. Kleiner
2016, Cooperator Science Series FWS/CSS-119-2016
We developed a spatially explicit model and map, as a decision support tool (DST), to aid conservation agencies creating or maintaining open pine ecosystems. The tool identified areas that are likely to provide the greatest benefit to focal bird populations based on a comprehensive landscape analysis. We used NLCD 2011,...
Fire in the Earth System: Bridging data and modeling research
Srijn Hantson, Silvia Kloster, Michael Coughlan, Anne-Laure Daniau, Boris Vanniere, Tim Bruecher, Natalie M. Kehrwald, Brian I. Magi
2016, Bulletin of the American Meteorological Society (97) 1069-1072
Significant changes in wildfire occurrence, extent, and severity in areas such as western North America and Indonesia in 2015 have made the issue of fire increasingly salient in both the public and scientific spheres. Biomass combustion rapidly transforms land cover, smoke pours into the atmosphere, radiative heat from fires initiates...
Rare earth element deposits in China
Yu-Ling Xie, Zeng-qian Hou, Richard J. Goldfarb, Xiang Guo, Lei Wang
2016, Book chapter, Reviews in Economic Geology
China is the world’s leading rare earth element (REE) producer and hosts a variety of deposit types. Carbonatite- related REE deposits, the most significant deposit type, include two giant deposits presently being mined in China, Bayan Obo and Maoniuping, the first and third largest deposits of this type in the...
Some contrasting biostratigraphic links between the Baker and Olds Ferry Terranes, eastern Oregon
Merlynd K. Nestell, Charles D. Blome
2016, Micropaleontology (61) 389-417
New stratigraphic and paleontologic data indicate that ophiolitic melange windows in the Olds Ferry terrane of eastern Oregon contain limestone blocks and chert that are somewhat different in age than those present in the adjacent Baker terrane melange. The melange windows in the Olds Ferry terrane occur as inliers in...
Earthquake probabilities for the Wasatch front region in Utah, Idaho, and Wyoming
Ivan G. Wong, William R. Lund, Christopher DuRoss, Patricia Thomas, Walter Arabasz, Anthony J. Crone, Michael D. Hylland, Nico Luco, Susan S. Olig, James C. Pechmann, Stephen Personius, Mark D. Petersen, David P. Schwartz, Robert B. Smith, Steve Rowman
2016, Report
In a letter to The Salt Lake Daily Tribune in September 1883, U.S. Geological Survey (USGS) geologist G.K. Gilbert warned local residents about the implications of observable fault scarps along the western base of the Wasatch Range. The scarps were evidence that large surface-rupturing earthquakes had occurred in the past...
Upper bound of pier scour in laboratory and field data
Stephen Benedict, Andral W. Caldwell
2016, Transportation Research Record (2588) 145-153
The U.S. Geological Survey (USGS), in cooperation with the South Carolina Department of Transportation, conducted several field investigations of pier scour in South Carolina and used the data to develop envelope curves defining the upper bound of pier scour. To expand on this previous work, an additional cooperative investigation was...
