Evidence that recent warming is reducing upper Colorado River flows
Gregory J. McCabe, David M. Wolock, Gregory T. Pederson, Connie A. Woodhouse, Stephanie A. McAfee
2017, Earth Interactions (21) 1-14
The upper Colorado River basin (UCRB) is one of the primary sources of water for the western United States, and increasing temperatures likely will elevate the risk of reduced water supply in the basin. Although variability in water-year precipitation explains more of the variability in water-year UCRB streamflow than water-year...
Rehabilitating sea otters: Feeling good versus being effective
James A. Estes, M. Tim Tinker
Peter Kareiva, Michelle Marvier, Brian Silliman, editor(s)
2017, Book chapter, Effective conservation science: Data not dogma
This chapter examines the complexities of assessing the merits and drawbacks of wildlife rehabilitation. Wildlife rehabilitation is often costly, and the resulting benefits differ depending on whether one’s interest is in the welfare of individual animals or conserving populations. Two examples of this dilemma include the rehabilitation of oiled sea...
Connecting the Soda–Avawatz and Bristol–Granite Mountains faults with gravity andaeromagnetic data, Mojave Desert, California
Victoria E. Langenheim, David M. Miller
2017, Conference Paper, ECSZ does it: Revisiting the Eastern California Shear Zone 2017 Desert Symposium Field Guide and Proceedings
The Soda–Avawatz and Bristol–Granite Mountains faults are considered by some to form the northeastern margin of the eastern California shear zone yet their connectivity and extents are obscured by surficial deposits and the estimates of total right-lateral offset from geologic data range from 0 to as much as 24 km....
Determining quantity and quality of retained oil in mature marly chalk and marlstone of the Cretaceous Niobrara Formation by low-temperature hydrous pyrolysis
Michael Lewan, Mark D. Sonnenfeld
2017, Conference Paper, Unconventional Resources Technology Conference
Low-temperature hydrous pyrolysis (LTHP) at 300°C (572°F) for 24 h released retained oils from 12- to 20-meshsize samples of mature Niobrara marly chalk and marlstone cores. The released oil accumulated on the water surface of the reactor, and is compositionally similar to oil produced from the same well. The quantities...
The sand dunes of the Colorado River, Grand Canyon, USA
Daniel D. Buscombe, Matthew Kaplinski, Paul E. Grams, Thomas Ashley, Brandon McElroy, David M. Rubin
2017, Conference Paper, RCEM 2017 – Back to Italy—The 10th Symposium on River, Coastal and Estuarine Morphodynamics
The flow (Wright and Kaplinski, 2011), suspended sediment transport (Topping et al., 2000), sediment storage (Grams et al., 2013), and sedimentology of sandbars (Rubin et al., 1998) of the 250 miles of the Colorado River that run through Grand Canyon National Park have been well studied and described. However, there...
Earth science atlas
Warren J. Nokleberg, Thomas K. Bundtzen, David W. Scholl, David B. Stone
Thomas K. Bundtzen, Warren J. Nokleberg, Raymond A. Price, David W. Scholl, David B. Stone, editor(s)
2017, Book chapter, Dynamic geology of the Northern Cordillera (Alaska and western Canada) and adjacent marine areas: Tectonics, hazards, and resources
No abstract available....
Translating statistical species-habitat models to interactive decision support tools
Lyndsie S. Wszola, Victoria L. Simonsen, Erica F. Stuber, Caitlyn R. Gillespie, Lindsey N. Messinger, Karie L. Decker, Jeffrey J. Lusk, Christopher F. Jorgensen, Andrew A. Bishop, Joseph J. Fontaine
2017, PLoS ONE (12) 1-13
Understanding species-habitat relationships is vital to successful conservation, but the tools used to communicate species-habitat relationships are often poorly suited to the information needs of conservation practitioners. Here we present a novel method for translating a statistical species-habitat model, a regression analysis relating ring-necked pheasant abundance to landcover, into an...
An intertebrate ecosystem engineer likely covered under the umbrella of sage-grouse conservation
Jason D. Carlisle, David R. Stewart, Anna D. Chalfoun
2017, Western North American Naturalist (77) 450-463
Conservation practitioners often rely on areas designed to protect species of greatest conservation priority to also conserve co-occurring species (i.e., the umbrella species concept). The extent to which vertebrate species may serve as suitable umbrellas for invertebrate species, however, has rarely been explored. Sage-grouse (Centrocercus spp.) have high conservation priority throughout...
Rapid 3-week transition from migration to incubation in a female Roseate Tern (Sterna dougallii)
Jeffrey A. Spendelow
2017, North American Bird Bander (42) 62-64
A female Roseate Tern that staged in Puerto Rico on 10 May 2008 on its migration north was first observed in the nesting area at Bird Island, Buzzards Bay, Massachusetts on 21 May. It was incubating a complete clutch of two eggs by 1 June and likely had initiated laying...
Forecasting consequences of changing sea ice availability for Pacific walruses
Mark S. Udevitz, Chadwick V. Jay, Rebecca L. Taylor, Anthony S. Fischbach, William S. Beatty, Shawn R. Noren
2017, Ecosphere (8)
The accelerating rate of anthropogenic alteration and disturbance of environments has increased the need for forecasting effects of environmental change on fish and wildlife populations. Models linking projections of environmental change with behavioral responses and bioenergetic effects can provide a basis for these forecasts. There is particular interest in forecasting...
First evidence that paired Roseate Terns may travel together during spring migration
Jeffrey A. Spendelow, Gabriel Lugo
2017, North American Bird Bander (42) 60-62
A mated pair of colorbanded Roseate Terns from the Northwest Atlantic Ocean breeding population was photographed on 12 May 2010 while staging near Mayaguez, Puerto Rico. This represents the first evidence that mated pairs of this species may travel together during their northward spring migration...
Spatial genetic structure of muskellunge in the Great Lakes region and the effects of supplementation on genetic integrity of remnant stocks
Keith N. Turnquist, Wesley Larson, John M. Farrell, P.A. Hanchin, Kevin L. Kapuscinski, Loren M. Miller, Kim T. Scribner, Chris C. Wilson, Brian L. Sloss
2017, Conference Paper, Muskellunge management: Fifty years of cooperation among anglers, scientists, and fisheries biologists
No abstract available....
Conservation status assessment of an endangered insular raptor: the Sharp-shinned Hawk in Puerto Rico
Julio C. Gallardo, Francisco Vilella
2017, Journal of Field Ornithology (88) 349-361
Sharp‐shinned Hawks (Accipiter striatus) are forest raptors that are widely distributed in the Americas. A subspecies endemic to Puerto Rico (A. s. venator) is listed as endangered and restricted to mature and old secondary montane forests and shade coffee plantations. However, recent information about the population status and distribution of Puerto Rican...
A statistical method to predict flow permanence in dryland streams from time series of stream temperature
Ivan Arismendi, Jason B. Dunham, Michael Heck, Luke Schultz, David Hockman-Wert
2017, Water (9) 1-13
Intermittent and ephemeral streams represent more than half of the length of the global river network. Dryland freshwater ecosystems are especially vulnerable to changes in human-related water uses as well as shifts in terrestrial climates. Yet, the description and quantification of patterns of flow permanence in these systems is challenging...
Macroscale patterns of synchrony identify complex relationships among spatial and temporal ecosystem drivers
Noah R. Lottig, Pang-Ning Tan, Tyler Wagner, Kendra Spence Cheruvelil, Patricia A. Soranno, Emily H. Stanley, Caren E. Scott, Craig A. Stow, Shuai Yuan
2017, Ecosphere (8) 1-11
Ecology has a rich history of studying ecosystem dynamics across time and space that has been motivated by both practical management needs and the need to develop basic ideas about pattern and process in nature. In situations in which both spatial and temporal observations are available, similarities in temporal behavior...
Toward an effective practice of translational ecology
Stephen T. Jackson, Gregg Garfin, Carolyn A.F. Enquist
2017, Frontiers in Ecology and the Environment (15) 540-540
No abstract available....
Metabarcoding of environmental DNA samples to explore the use of uranium mine containment ponds as a water source for wildlife
Katy E. Klymus, Catherine A. Richter, Nathan Thompson, Jo Ellen Hinck
2017, Diversity (9)
Understanding how anthropogenic impacts on the landscape affect wildlife requires a knowledge of community assemblages. Species surveys are the first step in assessing community structure, and recent molecular applications such as metabarcoding and environmental DNA analyses have been proposed as an additional and complementary wildlife survey method. Here, we test...
Population-level plasticity in foraging behavior of western gulls (Larus occidentalis)
Scott A. Shaffer, Sue Cockerham, Peter Warzybok, Russell W. Bradley, Jaime Jahncke, Corey A. Clatterbuck, Magali Lucia, Jennifer A. Jelincic, Anne L. Cassell, Emily Kelsey, Josh Adams
2017, Movement Ecology (5)
BackgroundPlasticity in foraging behavior among individuals, or across populations may reduce competition. As a generalist carnivore, western gulls (Larus occidentalis) consume a wide range of marine and terrestrial foods. However, the foraging patterns and habitat selection (ocean or land) of western gulls is not...
Walleye age estimation using otoliths and dorsal spines: Preparation techniques and sampling guidelines based on sex and total length
Daniel J. Dembkowski, Daniel A. Isermann, Ryan P. Koenigs
2017, Journal of Fish and Wildlife Management (8) 474-486
We used dorsal spines and otoliths from 735 Walleye Sander vitreus collected from 35 Wisconsin water bodies to evaluate whether 1) otolith and dorsal spine cross sections provided age estimates similar to simpler methods of preparation (e.g., whole otoliths and dorsal spines, cracked otoliths); and 2) between-reader precision and differences between spine...
Evaluating the potential for weed seed dispersal based on waterfowl consumption and seed viability
Jaime A. Farmer, Elisabeth B. Webb, Robert A. Pierce II, Kevin W. Bradley
2017, Pest Management Science (73) 2592-2603
BACKGROUNDMigratory waterfowl have often been implicated in the movement of troublesome agronomic and wetland weed species. However, minimal research has been conducted to investigate the dispersal of agronomically important weed species by waterfowl. The two objectives for this project were to determine what weed species are being...
Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska
Kyle R. Hogrefe, Vijay P. Patil, Daniel R. Ruthrauff, Brandt W. Meixell, Michael E. Budde, Jerry W. Hupp, David H. Ward
2017, Remote Sensing (9)
Tools that can monitor biomass and nutritional quality of forage plants are needed to understand how arctic herbivores may respond to the rapidly changing environment at high latitudes. The Normalized Difference Vegetation Index (NDVI) has been widely used to assess changes in abundance and distribution of terrestrial vegetative communities. However,...
Importance of fishing as a segmentation variable in the application of a social worlds model
Larry M. Gigliotti, Loren Chase
2017, Proceedings of the South Dakota Academy of Science (96) 58-76
Market segmentation is useful to understanding and classifying the diverse range of outdoor recreation experiences sought by different recreationists. Although many different segmentation methodologies exist, many are complex and difficult to measure accurately during in-person intercepts, such as that of creel surveys. To address that gap in the literature, we...
Building translational ecology communities of practice: insights from the field
Dawn M. Lawson, Kimberly R. Hall, Laurie Yung, Carolyn A. F. Enquist
2017, Frontiers in Ecology and the Environment (15) 569-577
Translational ecology (TE) prioritizes the understanding of social systems and decision contexts in order to address complex natural resource management issues. Although many practitioners in applied fields employ translational tactics, the body of literature addressing such approaches is limited. We present several case studies illustrating the principles of TE and...
Attaching transmitters to waterbirds using one versus two subcutaneous anchors: Retention and survival trade-offs
Tyler Lewis, Daniel Esler, Brian D. Uher-Koch, Rian D. Dickson, Eric M. Anderson, Joseph R. Evenson, Jerry W. Hupp, Paul L. Flint
2017, Wildlife Society Bulletin (41) 691-700
A major challenge of wildlife telemetry is choosing an attachment technique that maximizes transmitter retention while minimizing negative side effects. For waterbirds, attachment of transmitters with subcutaneous anchors has been an effective and well-established technique, having been used on >40 species. This method was recently modified to include a second...
Sampling bees in tropical forests and agroecosystems: A review
Sara G. Prado, Hien T. Ngo, Jaime A. Florez, Jaime A. Collazo
2017, Journal of Insect Conservation (21) 753-770
Bees are the predominant pollinating taxa, providing a critical ecosystem service upon which many angiosperms rely for successful reproduction. Available data suggests that bee populations worldwide are declining, but scarce data in tropical regions precludes assessing their status and distribution, impact on ecological services, and response to management actions. Herein,...
