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Page 959, results 23951 - 23975

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Thumbnail‐based questionnaires for the rapid and efficient collection of macroseismic data from global earthquakes
Remy Bossu, Matthieu Landes, Frederic Roussel, Robert Steed, Gilles Mazet-Roux, Stacey S. Martin, Susan E. Hough
2017, Seismological Research Letters (88) 72-81
The collection of earthquake testimonies (i.e., qualitative descriptions of felt shaking) is essential for macroseismic studies (i.e., studies gathering information on how strongly an earthquake was felt in different places), and when done rapidly and systematically, improves situational awareness and in turn can contribute to efficient emergency response. In this...
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...
Pharmaceuticals and personal care products (PPCPs) are ecological disrupting compounds (EcoDC)
Erinn Richmond, Michael R. Grace, John R. Kelly, Andrew Reisinger, Emma J. Rosi, David M. Walters
2017, Elementa: Science of the anthropocene (5) 1-8
Pharmaceuticals and personal care products (PPCPs) are ubiquitous in freshwater ecosystems worldwide and are recognized as contaminants of concern. Currently, contaminants of concern are classified for their persistence, bioaccumulation, and toxicity (PBT criteria). PPCPs are not classified as persistent organic pollutants (POPs), although some PPCPs share characteristics similar to POPs....
Guidance documents: Continued support to improve operations of fish hatcheries and field sites to reduce the impact or prevent establishment of New Zealand Mudsnails and other invasive mollusks
Christine M. Moffitt
2017, Cooperator Science Series FWS/CSS-124-2017
This project tested and revised a risk assessment/management tool authored by Moffitt and Stockton designed to provide hatchery biologists and others a structure to measure risk and provide tools to control, prevent or eliminate invasive New Zealand mudsnails (NZMS) and other invasive mollusks in fish hatcheries and hatchery operations. The...
What can volunteer angler tagging data tell us about the status of the Giant Trevally (ulua aukea) Caranx ignobilis fishery in Hawaii: revisiting data collected during Hawaii’s Ulua and Papio Tagging Project 2000-2016
Timothy B. Grabowski, Erik C. Franklin
2017, Cooperator Science Series FWS/CSS-126-2017
Giant Trevally (ulua aukea) Caranx ignobilis is one of the most highly prized and frequentlytargeted nearshore species. However, there is very little information on its current status inHawaiian waters. This study uses mark-recapture data collected as part of recreational anglertagging program conducted by the Hawaii Department of Land and Natural...
Climate changes and wildfire alter vegetation of Yellowstone National Park, but forest cover persists
Jason A. Clark, Rachel A. Loehman, Robert E. Keane
2017, Ecosphere (8)
We present landscape simulation results contrasting effects of changing climates on forest vegetation and fire regimes in Yellowstone National Park, USA, by mid-21st century. We simulated potential changes to fire dynamics and forest characteristics under three future climate projections representing a range of potential future conditions using the FireBGCv2 model....
Fisheries and aquatic resources of Prairie Creek, Redwood National Park
Peggy Wilzbach, Vicki Ozaki
2017, Natural Resource Report NPS/REDW/NRR—2017/1492
This report synthesizes information on the status of fisheries and aquatic resources in the Prairie Creek sub-basin of Redwood Creek in Humboldt County in northern California, founded on a bibliographic search we conducted of historic and current datasets, unpublished reports, theses, and publications. The compiled Prairie Creek Fisheries Bibliography is...
Influence of the Eastern California Shear Zone on deposition of the Mio-Pliocene Bouse Formation: Insights from the Cibola area, Arizona
Rebecca J. Dorsey, Brennan O’Connell, Mindy B. Homan, Scott E.K. Bennett
2017, Conference Paper, 2017 Desert Symposium Field Guide and Proceedings - ECSZ does it: Revisiting the eastern California Shear Zone
The Eastern California Shear Zone (ECSZ) is a wide zone of late Cenozoic strike-slip faults and related diffuse deformation that currently accommodates ~20–25% of relative Pacific–North America plate motion in the lower Colorado River region (Fig. 1A; Dokka and Travis, 1990; Miller et al., 2001; Guest et al., 2007; Mahan...
A hidden-process model for estimating prespawn mortality using carcass survey data
J. Tyrell DeWeber, James Peterson, Cameron Sharpe, Michael L. Kent, Michael E. Colvin, Carl B. Schreck
2017, North American Journal of Fisheries Management (37) 162-175
After returning to spawning areas, adult Pacific salmon Oncorhynchus spp. often die without spawning successfully, which is commonly referred to as prespawn mortality. Prespawn mortality reduces reproductive success and can thereby hamper conservation, restoration, and reintroduction efforts. The primary source of information used to estimate prespawn mortality is collected through carcass surveys,...
Impacts of mesquite distribution on seasonal space use of lesser prairie-chickens
Matthew A. Boggie, Cody R. Strong, Daniel Lusk, Scott A. Carleton, William R. Gould, Randy L. Howard, Clay T. Nichols, Michael J. Falkowski, Christian A. Hagen
2017, Rangeland Ecology and Management (70) 68-77
Loss of native grasslands by anthropogenic disturbances has reduced availability and connectivity of habitat for many grassland species. A primary threat to contiguous grasslands is the encroachment of woody vegetation, which is spurred by disturbances that take on many forms from energy development, fire suppression, and grazing. These disturbances are...
Model-based estimators of density and connectivity to inform conservation of spatially structured populations
Dana J. Morin, Angela K. Fuller, J. Andrew Royle, Chris Sutherland
2017, Ecosphere (8) 1-16
Conservation and management of spatially structured populations is challenging because solutions must consider where individuals are located, but also differential individual space use as a result of landscape heterogeneity. A recent extension of spatial capture–recapture (SCR) models, the ecological distance model, uses spatial encounter histories of individuals (e.g., a record...
Adaptive management of rangeland systems
Craig R. Allen, David G. Angeler, Joseph J. Fontaine, Ahjond S. Garmestani, Noelle M. Hart, Kevin L. Pope, Dirac Twidwell
2017, Book chapter, Rangeland Systems: Processes, Management and Challenges
Adaptive management is an approach to natural resource management that uses structured learning to reduce uncertainties for the improvement of management over time. The origins of adaptive management are linked to ideas of resilience theory and complex systems. Rangeland management is particularly well suited for the application of adaptive management,...
Hydrochemical determination of source water contributions to Lake Lungo and Lake Ripasottile (central Italy)
Claire Archer, Paula Noble, David Kreamer, Vincenzo Piscopo, Marco Petitta, Michael R. Rosen, Simon R. Poulson, Gianluca Piovesan, Scott Mensing
2017, Journal of Limnology (76) 326-342
Lake Lungo and Lake Ripasottile are two shallow (4-5 m) lakes located in the Rieti Basin, central Italy, that have been described previously as surface outcroppings of the groundwater table. In this work, the two lakes as well as springs and rivers that represent their potential source waters are characterized...
Trends in methyl tert-butyl ether concentrations in private wells in southeast New Hampshire: 2005 to 2015
Sarah Flanagan, Joseph P. Levitt, Joseph D. Ayotte
2017, Environmental Science & Technology (51) 1168-1175
In southeast New Hampshire, where reformulated gasoline was used from the 1990s to 2007, methyl tert-butyl ether (MtBE) concentrations ≥0.2 μg/L were found in water from 26.7% of 195 domestic wells sampled in 2005. Ten years later in 2015, and eight years after MtBE was banned, 10.3% continue to have MtBE....
Low thinning and crown thinning of two severities as restoration tools at Redwood National Park
Jason R Teraoka, Phillip J. van Mantgem, Christopher R. Keyes
2017, General Technical Report PSW-GTR-258
Interest in the restoration of second-growth forests has continued to increase in the redwood region, which has further increased the importance of evaluating restoration-based silvicultural strategies. This study assessed the short-term effectiveness of four silvicultural treatments (two silvicultural thinning methods, low thinning and crown thinning, and two basal area retentions,...
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...
Behavioral connectivity among bighorn sheep suggests potential for disease spread
Nathan J. Borg, Michael S. Mitchell, Paul M. Lukacs, Curt M. Mack, Lisette P. Waits, Paul R. Krausman
2017, Journal of Wildlife Management (81) 38-45
Connectivity is important for population persistence and can reduce the potential for inbreeding depression. Connectivity between populations can also facilitate disease transmission; respiratory diseases are one of the most important factors affecting populations of bighorn sheep (Ovis canadensis). The mechanisms of connectivity in populations of bighorn sheep likely have implications...
Spatio-temporal development of vegetation die-off in a submerging coastal marsh
Lennert Schepers, Matthew Kirwan, Glenn R. Guntenspergen, Stijn Temmerman
2017, Limnology and Oceanography (62) 137-150
In several places around the world, coastal marsh vegetation is converting to open water through the formation of pools. This is concerning, as vegetation die-off is expected to reduce the marshes' capacity to adapt to sea level rise by vegetation-induced sediment accretion. Quantitative analyses of the spatial and temporal development...
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...
Quantifying the relative contribution of an ecological reserve to conservation objectives
Kevin Aagaard, James E. Lyons, Wayne E. Thogmartin
2017, Global Ecology and Conservation (9) 142-147
Evaluating the role public lands play in meeting conservation goals is an essential step in good governance. We present a tool for comparing the regional contribution of each of a suite of wildlife management units to conservation goals. We use weighted summation (simple additive weighting) to compute a Unit Contribution...
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...
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)....
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...