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10457 results.

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Page 122, results 3026 - 3050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Evaluating the effectiveness of wildlife detection and observation technologies at a solar power tower facility
Robert H. Diehl, Ernest W. Valdez, Todd M. Preston, Mike J. Wellik, Paul M. Cryan
2016, PLoS ONE (7) e0158115
Solar power towers produce electrical energy from sunlight at an industrial scale. Little is known about the effects of this technology on flying animals and few methods exist for automatically detecting or observing wildlife at solar towers and other tall anthropogenic structures. Smoking objects are sometimes observed co-occurring with reflected,...
Comparison of benthos and plankton for selected areas of concern and non-areas of concern in western Lake Michigan Rivers and Harbors in 2012
Barbara C. Scudder Eikenberry, Amanda H. Bell, Hayley T. Olds, Daniel J. Burns
2016, Scientific Investigations Report 2016-5090
Recent data are lacking to assess whether impairments still exist at four of Wisconsin’s largest Lake Michigan harbors that were designated as Areas of Concern (AOCs) in the late 1980s due to sediment contamination and multiple Beneficial Use Impairments (BUIs), such as those affecting benthos (macroinvertebrates) and plankton (zooplankton and...
Alternative method of removing otoliths from sturgeon
Marc A. Chalupnicki, Dawn E. Dittman
2016, Journal of Visualized Experiments (112)
Extracting the otoliths (ear bones) from fish that have very thick skulls can be difficult and very time consuming. The common practice of making a transverse vertical incision on the top of the skull with a hand or electrical saw may damage the otolith if not performed correctly. Sturgeons (Acipenseridae)...
Fluvial system response to late Pleistocene-Holocene sea-level change on Santa Rosa Island, Channel Islands National Park, California
R. Randall Schumann, Jeffery S. Pigati, John P. McGeehin
2016, Geomorphology (268) 322-340
Santa Rosa Island (SRI) is one of four east-west aligned islands forming the northern Channel Islands chain, and one of the five islands in Channel Islands National Park, California, USA. The island setting provides an unparalleled environment in which to record the response of fluvial systems to major changes of...
Setting priorities for private land conservation in fire-prone landscapes: Are fire risk reduction and biodiversity conservation competing or compatible objectives?
Alexandra D. Syphard, Van Butsic, Avi Bar-Massada, Jon E. Keeley, Jeff A. Tracey, Robert N. Fisher
2016, Ecology and Society (21)
Although wildfire plays an important role in maintaining biodiversity in many ecosystems, fire management to protect human assets is often carried out by different agencies than those tasked for conserving biodiversity. In fact, fire risk reduction and biodiversity conservation are often viewed as competing objectives. Here we explored the role...
Hierarchical animal movement models for population-level inference
Mevin Hooten, Frances E. Buderman, Brian M. Brost, Ephraim M. Hanks, Jacob S. Ivans
2016, Environmetrics (27) 322-333
New methods for modeling animal movement based on telemetry data are developed regularly. With advances in telemetry capabilities, animal movement models are becoming increasingly sophisticated. Despite a need for population-level inference, animal movement models are still predominantly developed for individual-level inference. Most efforts to upscale the inference to...
Effects of aquifer storage and recovery activities on water quality in the Little Arkansas River and Equus Beds Aquifer, south-central Kansas, 2011–14
Mandy L. Stone, Jessica D. Garrett, Barry C. Poulton, Andrew C. Ziegler
2016, Scientific Investigations Report 2016-5042
The Equus Beds aquifer in south-central Kansas is aprimary water source for the city of Wichita. The Equus Beds aquifer storage and recovery (ASR) project was developed to help the city of Wichita meet increasing current (2016) and future water demands. The Equus Beds ASR project pumps water out of...
State-and-transition simulation models: a framework for forecasting landscape change
Colin Daniel, Leonardo Frid, Benjamin M. Sleeter, Marie-Josee Fortin
2016, Methods in Ecology and Evolution (7) 1413-1423
SummaryA wide range of spatially explicit simulation models have been developed to forecast landscape dynamics, including models for projecting changes in both vegetation and land use. While these models have generally been developed as separate applications, each with a separate purpose and audience, they share many...
Assessing the influence of watershed characteristics on chlorophyll a in waterbodies at global and regional scales
Whitney Woelmer, Yu-Chun Kao, David B. Bunnell, Andrew M. Deines, David Bennion, Mark W. Rogers, Colin N. Brooks, Michael J. Sayers, David M. Banach, Amanda G. Grimm, Robert A. Shuchman
2016, Inland Waters (6) 379-392
Prediction of primary production of lentic water bodies (i.e., lakes and reservoirs) is valuable to researchers and resource managers alike, but is very rarely done at the global scale. With the development of remote sensing technologies, it is now feasible to gather large amounts of data across the world, including...
Post-project geomorphic assessment of a large process-based river restoration project
Susannah O. Erwin, John C. Schmidt, Tyler M. Allred
2016, Geomorphology (270) 145-158
This study describes channel changes following completion of the Provo River Restoration Project (PRRP), the largest stream restoration project in Utah and one of the largest projects in the United States in which a gravel-bed river was fully reconstructed. We summarize project objectives and the design process, and we analyze...
High spatio-temporal resolution observations of crater-lake temperatures at Kawah Ijen volcano, East Java, Indonesia
Jennifer L. Lewicki, Corentin Caudron, Vincent van Hinsberg, George Hilley
2016, Bulletin of Volcanology (78)
The crater lake of Kawah Ijen volcano, East Java, Indonesia, has displayed large and rapid changes in temperature at point locations during periods of unrest, but measurement techniques employed to-date have not resolved how the lake’s thermal regime has evolved over both space and time. We applied a novel approach...
Geologic context of recurring slope lineae in Melas and Coprates Chasmata, Mars
Matthew Chojnacki, Alfred McEwen, Colin M. Dundas, Lujendra Ojha, Anna Urso, Sarah Sutton
2016, Journal of Geophysical Research E: Planets (121) 1-28
One of the major Mars discoveries of recent years is the existence of recurring slope lineae (RSL), which suggests that liquid water occurs on or near the surface of Mars today. These dark and narrow features emerge from steep, rocky exposures and incrementally grow, fade, and reform on a seasonal...
Density-dependent home-range size revealed by spatially explicit capture–recapture
M.G. Efford, Deanna K. Dawson, Y.V. Jhala, Q. Qureshi
2016, Ecography (39) 676-688
The size of animal home ranges often varies inversely with population density among populations of a species. This fact has implications for population monitoring using spatially explicit capture–recapture (SECR) models, in which both the scale of home-range movements σ and population density D usually appear as parameters, and both may...
A framework for assessing the feasibility of native fish conservation translocations: Applications to threatened bull trout
Benjamin T. Galloway, Clint C. Muhlfeld, Christopher S. Guy, Christopher C. Downs, Wade A. Fredenberg
2016, North American Journal of Fisheries Management (36) 754-768
There is an urgent need to consider more aggressive and direct interventions for the conservation of freshwater fishes that are threatened by invasive species, habitat loss, and climate change. Conservation introduction (moving a species outside its indigenous range to other areas where conditions are predicted to be more suitable)...
Detection, prevalence, and transmission of avian hematozoa in waterfowl at the Arctic/sub-Arctic interface: co-infections, viral interactions, and sources of variation.
Brandt W. Meixell, Todd W. Arnold, Mark S. Lindberg, Matthew M. Smith, Andrew M. Ramey, Jonathan A. Runstadler
2016, Parasites & Vectors (9)
Background: The epidemiology of avian hematozoa at high latitudes is still not well understood, particularly in sub-Arctic and Arctic habitats, where information is limited regarding seasonality and range of transmission, co-infection dynamics with parasitic and viral agents, and possible fitness consequences of infection. Such information is important as climate warming...
Experimental whole-lake increase of dissolved organic carbon concentration produces unexpected increase in crustacean zooplankton density
Patrick T. Kelly, Nicola Craig, Christopher T. Solomon, Brian Weidel, Jacob A. Zwart, Stuart E. Jones
2016, Global Change Biology (22) 2766-2775
The observed pattern of lake browning, or increased terrestrial dissolved organic carbon (DOC) concentration, across the northern hemisphere has amplified the importance of understanding how consumer productivity varies with DOC concentration. Results from comparative studies suggest these increased DOC concentrations may reduce crustacean zooplankton productivity due to reductions in resource...
Anadromous salmonids in the Delta: New science 2006–2016
Russell W. Perry, Rebecca A. Buchanan, Patricia L. Brandes, Jon R. Burau, Joshua A Israel
2016, San Francisco Estuary and Watershed Science (14)
As juvenile salmon enter the Sacramento–SanJoaquin River Delta (“the Delta”) they disperse among its complex channel network where they are subject to channel-specific processes that affect their rate of migration, vulnerability to predation, feeding success, growth rates, and ultimately, survival. In the decades...
Preface: Impacts of extreme climate events and disturbances on carbon dynamics
Jingfeng Xiao, Shuguang Liu, Paul C. Stoy
2016, Biogeosciences (13) 3665-3675
The impacts of extreme climate events and disturbances (ECE&D) on the carbon cycle have received growing attention in recent years. This special issue showcases a collection of recent advances in understanding the impacts of ECE&D on carbon cycling. Notable advances include quantifying how harvesting activities impact forest structure, carbon pool...
Ungulate browsers promote herbaceous layer diversity in logged temperate forests
Edward K. Faison, Stephen DeStefano, David R. Foster, Glenn Motzkin, Josh Rapp
2016, Ecology and Evolution (6) 4591-4602
Ungulates are leading drivers of plant communities worldwide, with impacts linked to animal density, disturbance and vegetation structure, and site productivity. Many ecosystems have more than one ungulate species; however, few studies have specifically examined the combined effects of two or more species on plant communities. We examined the extent...
Effects of seasonal weather on breeding phenology and reproductive success of alpine ptarmigan in Colorado
Gregory T. Wann, Cameron L. Aldridge, Clait E. Braun
2016, PLoS ONE (11) 1-16
Animal populations occurring at high elevations are often assumed to be in peril of extinctions or local extirpations due to elevational-dispersal limitations and thermoregulatory constraints as habitats change and warm. However, long-term monitoring of high-elevation populations is uncommon relative to those occurring at lower elevations, and evidence supporting this assumption...
Age, sex and social influences on adult survival in the cooperatively breeding Karoo Scrub-robin
Penn Lloyd, Thomas E. Martin, Andrew Taylor, Anne Braae, Res Altwegg
2016, Emu (116) 394-401
Among cooperatively breeding species, helpers are hypothesised to increase the survival of breeders by reducing breeder workload in offspring care and increased group vigilance against predators. Furthermore, parental nepotism or other benefits of group living may provide a survival benefit to young that delay dispersal to help. We tested these...
Finite-element modelling of physics-based hillslope hydrology, Keith Beven, and beyond
Keith Loague, Brian A. Ebel
2016, Hydrological Processes (30) 2432-2437
Keith Beven is a voice of reason on the intelligent use of models and the subsequent acknowledgement/assessment of the uncertainties associated with environmental simula-tion. With several books and hundreds of papers, Keith’s work is widespread, well known, and highly referenced. Four of Keith’s most notable contributions are the iconic TOPMODEL...
The statistical power to detect cross-scale interactions at macroscales
Tyler Wagner, C. Emi Fergus, Craig A. Stow, Kendra S. Cheruvelil, Patricia A. Soranno
2016, Ecosphere (7)
Macroscale studies of ecological phenomena are increasingly common because stressors such as climate and land-use change operate at large spatial and temporal scales. Cross-scale interactions (CSIs), where ecological processes operating at one spatial or temporal scale interact with processes operating at another scale, have been documented in a variety of...
Geology and hydrocarbon potential of the Hartford-Deerfield Basin, Connecticut and Massachusetts
James L. Coleman
2016, GCSSEPM Foundation Perkins-Rosen Research Conference Proceedings (34) 195-214
The Hartford-Deerfield basin, a Late Triassic to Early Jurassic rift basin located in central Connecticut and Massachusetts, is the northernmost basin of the onshore Mesozoic rift basins in the eastern United States. The presence of asphaltic petroleum in outcrops indicates that at least one active petroleum system has existed within...
Examination of the Reelfoot Rift Petroleum System, south-central United States, and the elements that remain for potential exploration and development
James L. Coleman, Thomas L. Pratt
2016, GCSSEPM Foundation Perkins-Rosen Research Conference Proceedings (34) 345-371
The Reelfoot rift is one segment of a late Proterozoic(?) to early Paleozoic intracontinental rift complex in the south-central United States. The rift complex is situated beneath Mesozoic to Cenozoic strata of the Mississippi embayment of southeastern Missouri, northeastern Arkansas, and western Tennessee and Kentucky. The rift portion of...