Nest site selection of White-tailed Hawks (Geranoaetus albicaudatus) on Texas barrier islands
C.L. Haralson-Strobel, Clint W. Boal, C. C. Fraquhar
2021, Wilson Journal of Ornithology (132) 668-677
The distribution of the White-tailed Hawk (Geranoaetus albicaudatus) in the United States is restricted to the prairies and savannas of the Gulf Coastal Plain of Texas. Although listed as a state threatened species, it remains one of the least studied raptors in North America. It appears to reach high densities...
lsforce: A Python-based single-force seismic inversion framework for massive landslides
Liam Toney, Kate E. Allstadt
2021, Seismological Research Letters (4) 2610-2626
We present an open‐source Python package, lsforce, for performing single‐force source inversions of long‐period (tens to hundreds of seconds) seismic signals. Although the software is designed primarily for landslides, it can be used for any single‐force seismic source. The package allows users to produce estimates...
Breeding season space use by lesser prairie-chickens (Tympanuchus Pallidicinctus) varies among ecoregions and breeding stages
Bram H.F. Verheijen, Reid T. Plumb, Chris K.J. Gulick, Christian A. Hagen, Samantha G. Robinson, Daniel S. Sullins, David A. Haukos
2021, The American Midland Naturalist (185) 149-174
Large-scale declines of grassland ecosystems in the conterminous United States since European settlement have led to substantial loss and fragmentation of lesser prairie-chicken (Tympanuchus pallidicinctus) habitat and decreased their occupied range and population numbers by ∼85%. Breeding season space use is an important component of...
A framework for allocating conservation resources among multiple threats and actions
Joslin L. Moore, Abbey E Camaclang, Alana L. Moore, Cindy E Hauser, Michael C. Runge, Victor Picheny, Libby Rumpff
2021, Conservation Biology (35) 1639-1649
Land managers decide how to allocate resources among multiple threats that can be addressed through multiple possible actions. Additionally, these actions vary in feasibility, effectiveness, and cost. We sought to provide a way to optimize resource allocation to address multiple threats when multiple management options are...
The Mars Orbiter for Resources, Ices, and Environments (MORIE) science goals and instrument trades in radar, imaging, and spectroscopy
Wendy M. Calvin, Nathaniel E. Putzig, Colin M. Dundas, Ali M Bramson, Briony H. N. Horgan, Kim D Seelos, Hanna G Sizemore, Bethany L. Ehlmann, Gareth A Morgan, John W Holt, Scott L. Murchie, G Wesley Patterson
2021, The Planetary Science Journal (2)
The Mars Orbiter for Resources, Ices, and Environments (MORIE) was selected as one of NASA's 2019 Planetary Mission Concept Studies. The mission builds upon recent discoveries and current knowledge gaps linked to two primary scientific questions: (1) when did elements of the cryosphere form and how are ice deposits linked...
What can commercial fishery data in the Great Lakes reveal about juvenile sea lamprey (Petromyzon marinus) ecology and management?
John B. Hume, Gale A Bravener, Shane Flinn, Nicholas S. Johnson
2021, Journal of Great Lakes Research (47) S590-S603
The Laurentian Great Lakes of North America support a large and profitable freshwater fishery, but one continuously beset by parasitism from the invasive sea lamprey (Petromyzon marinus). Despite being the life stage that inflicts damage to the fishery, therefore necessitating a bi-national control...
Geometric calibration updates to Landsat 7 ETM+ instrument for Landsat Collection 2 products
Mike Choate, Rajagopalan Rengarajan, James C. Storey, Mark Lubke
2021, Remote Sensing (13)
The Landsat 7 (L7) spacecraft and its instrument, the enhanced thematic mapper plus (ETM+), have been consistently characterized and calibrated since its launch in April of 1999. These performance metrics and calibration updates are determined through the U. S. Geological Survey (USGS) Landsat image assessment system (IAS), which has been...
Geometry of the Bushveld Complex from 3D potential field modelling
Janine Cole, Carol A. Finn, Susan J. Webb
2021, Precambrian Research (359)
A full three-dimensional (3D) potential field model of the central and southern Bushveld Complex reveals information about the Complex in areas obscured by younger geological cover. Previously, two-dimensional gravity models and a few magnetic models limited to certain sections of the...
Temporal dynamics of sagebrush songbird abundance in relation to energy development
Max Carlin, Anna D. Chalfoun
2021, Biological Conservation (257)
Spatial aspects of wildlife responses to human-induced habitat change have been examined frequently, yet the temporal dynamics of responses remain less understood. We tested alternative hypotheses for how the abundance of a suite of declining songbirds in relation to...
Shear-wave velocity site characterization in Oklahoma from joint inversion of multi-method surface seismic measurements: Implications for central U.S. Ground Motion Prediction
William J. Stephenson, Jackson K. Odum, Stephen H. Hartzell, Alena L. Leeds, Robert Williams
2021, Bulletin Seismological Society America (111) 1693-1712
We analyze multimethod shear (SH)‐wave velocity (VS">VS) site characterization data acquired at three permanent and 25 temporary seismograph stations in Oklahoma that recorded M 4+ earthquakes within a 50 km hypocentral distance of at least one...
Emerging investigator series: Municipal wastewater as a year-round point source of neonicotinoid insecticides that persist in an effluent-dominated stream
Danielle T. Webb, Hui Zhi, Dana W. Kolpin, Rebecca D. Klaper, Luke R. Iwanowicz, Gregory H. LeFevre
2021, Environmental Sciences: Processes & Impacts (23) 678-688
Neonicotinoids in aquatic systems have been predominantly associated with agriculture, but some are increasingly being linked to municipal wastewater. Thus, the aim of this work was to understand the municipal wastewater contribution to neonicotinoids in a representative, characterized effluent-dominated temperate-region stream. Our approach was to quantify the spatiotemporal concentrations...
Multi-decadal shifts in the distribution and timing of Pacific herring (Clupea pallasii) spawning in Prince William Sound, Alaska
David W. McGowan, Trevor A. Branch, Stormy Haught, Mark David Scheuerell
Trevor A. Branch, editor(s)
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 1611-1627
The location and timing of spawning play a critical role in pelagic fish survival during early life stages and can affect subsequent recruitment. Spawning patterns of Pacific herring (Clupea pallasii) were examined in Prince William Sound (1973–2019) where the population has failed to recover since its collapse in 1993. Abrupt...
Investigating vegetation responses to underground nuclear explosions through integrated analyses
Kurt Solander, Adam D. Collins, Erika Swanson, Ellis Q. Margolis, Brandon Crawford, Elizabeth Miller, Min Chen, Anita Lavadie-Bulnes, Max Ryan, Isaac Borrego, Sanna Sevanto, Emily Schultz-Fellenz
2021, Journal of Geophysical Research Biogeosciences (126)
Vegetation has the potential to respond to underground nuclear explosions, yet these links have not been fully explored. Given the lack of previously described signatures, the changes in vegetation are possibly subtle. The integration of multiple different data streams is potentially a useful approach to improve...
Gonad size measured by ultrasound to assign stage of maturity in Burbot
Lauren M. McGarvey, Jason E. Ilgen, Molly A. H. Webb, Christopher S. Guy, Jason G. McLellan
2021, Journal of Fish and Wildlife Management (12) 241-249
We measured gonad size (diameter and circumference) by ultrasound and used it as a metric to assign stage of maturity in Burbot Lota lota from Lake Roosevelt, Washington. We collected paired gonad tissue and ultrasound measurements monthly from November 2017 to March 2018 and processed gonad tissue for histological analysis to confirm...
Metabarcoding of environmental samples suggest wide distribution of eelgrass (Zostera marina) pathogens in the north Pacific
Damian M. Menning, Hunter A Gravley, Melissa N. Cady, Daniel J Pepin, Sandy Wyllie-Echeverria, David H. Ward, Sandra L. Talbot
2021, Metabarcoding and Metagenomics (5) 35-42
Seagrass meadows provide important ecological services to the marine environment but are declining worldwide. Although eelgrass meadows in the north Pacific are thought to be relatively healthy, few studies have assessed the presence of known disease pathogens in these meadows. In a pilot study to test the efficacy...
Assessing the biological reactivity of organic compounds on volcanic ash: Implications for human health hazard
Ines Tomasek, David Damby, Daniele Andronico, Peter J. Baxter, Imke Boonen, Philippe Claeys, Michael S. Denison, Claire J. Horwell, Matthieu Kervyn, Ulrich Kueppers, Manolis N Romanias, Marc Elskens
2021, Bulletin of Volcanology (83)
Exposure to volcanic ash is a long-standing health concern for people living near active volcanoes and in distal urban areas. During transport and deposition, ash is subjected to various physicochemical processes that may change its surface composition and, consequently, bioreactivity. One such process is the interaction...
Balancing the need for seed against invasive species risks in prairie habitat restorations
Jennifer L Larson, Diane L. Larson, Robert Venette
2021, PLoS ONE (16)
Adequate diversity and abundance of native seed for large-scale grassland restorations often require commercially produced seed from distant sources. However, as sourcing distance increases, the likelihood of inadvertent introduction of multiple novel, non-native weed species as seed contaminants also increases. We created a model to determine...
A new addition to the embalmed fauna of ancient Egypt: Güldenstaedt’s White-toothed Shrew, Crocidura gueldenstaedtii (Pallas, 1811) (Mammalia: Eulipotyphla: Soricidae)
Neal Woodman, Salima Ikram, Joanne Rowland
2021, PLoS ONE (16)
The Falcon Necropolis at Quesna in the Nile Delta of Egypt is considered to have been founded by the priest Djedhor, the Saviour, of Athribis (Tell Atrib in modern Benha) at the beginning of the Ptolemaic Period. Recent excavations here have revealed abundant avian remains from...
Using enclosed Y-mazes to assess chemosensory behavior in reptiles
M. Rockwell Parker, Andrea Faye Currylow, Eric A. Tillman, Charlotte J. Robinson, Jillian Maureen Josimovich, Isabella M.G. Bukovich, Lauren A. Nazarian, Melia G. Nafus, Bryan M. Kluever, Amy A. Yackel Adams
2021, Journal of Visualized Experiments (170)
Reptiles utilize a variety of environmental cues to inform and drive animal behavior such as chemical scent trails produced by food or conspecifics. Decrypting the scent-trailing behavior of vertebrates, particularly invasive species, enables the discovery of cues that induce exploratory behavior and can aid in the development of valuable basic...
Prevalence of neonicotinoids and sulfoxaflor in alluvial aquifers in a high corn and soybean producing region of the Midwestern United States
D.A. Thompson, Dana W. Kolpin, Michelle L. Hladik, Kimberlee K. Barnes, J.D. Vargo, R.W. Field
2021, Science of the Total Environment (782)
Neonicotinoids have been previously detected in Iowa surface waters, but less is known regarding their occurrence in groundwater. To help fill this research gap, a groundwater study was conducted in eastern Iowa and southeastern Minnesota, a corn and soybean producing area with known heavy neonicotinoid...
Abiotic stress and biotic factors mediate range dynamics on opposing edges
Alexej P. K. Siren, Christopher Sutherland, Chris Bernier, Kimberly Royar, Jillian R. Kilborn, Catherine Callahan, Rachel Cliche, Leighlan S. Prout, Toni Lyn Morelli
2021, Journal of Biogeography (48) 1758-1772
AimIn the face of global change, understanding causes of range limits are one of the most pressing needs in biogeography and ecology. A prevailing hypothesis is that abiotic stress forms cold (upper latitude/altitude) limits, whereas biotic interactions create warm (lower) limits. A new framework – Interactive Range-Limit...
Evidence of successful river spawning by lake trout (Salvelinus namaycush) in the lower Niagara River, Lake Ontario
Alexander Gatch, Dimitry Gorsky, Zy Biesinger, Eric Bruestle, Kelley Lee, Curt Karboski, Meredith L. Bartron, Tyler Wagner
2021, Journal of Great Lakes Research (47) 486-493
Restoration of a wild-produced lake trout Salvelinus namaycush population in Lake Ontario has not been successful despite the adult population often meeting or exceeding restoration targets. Lack of high-quality spawning habitat in Lake Ontario is suggested as one impediment to recruitment of wild lake trout, although the quantity and location of...
Demography and loss of genetic diversity in two insular populations of the bobcat (Lynx rufus)
Cassandra M. Miller-Butterworth, Duane R. Diefenbach, Jessie E. Edson, Leslie A. Hansen, James D. Jordan, Tess M. Gingery, Amy L. Russell
2021, Global Ecology and Conservation (26) 1-15
Among felids worldwide, only 6 of 38 species have stable or increasing populations, and most felid species are threatened by anthropogenic influences, especially habitat loss and fragmentation. We documented changes in genetic diversity in an isolated, reintroduced population of bobcats on Cumberland Island (CUIS), Georgia, USA, compared to another...
Predicting the spatiotemporal exposure of aquatic species to intrusions of fire retardant in streams with limited data
Chris R. Rehmann, P. Ryan Jackson, Holly J. Puglis
2021, Science of the Total Environment (782)
Because fire retardant can enter streams and harm aquatic species including endangered fish, agencies such as the U.S. Forest Service (USFS) must estimate the downstream extent of toxic effects every time fire retardant enters streams (denoted as an “intrusion”). A challenge in estimating the length of stream...
Shift of potential natural vegetation against global climate change under historical, current and future scenarios
Zhengchao Ren, Huazhong Zhu, Hua Shi, Xiaoni Liu
2021, Rangeland Journal (43) 309-319
Potential natural vegetation (PNV), the final successional stage of vegetation, plays a key role in ecological restoration, the design of nature reserves, and development of agriculture and livestock production. Meteorological data from historical and current periods including the last inter-glacial (LIG), last glacial maximum (LGM), mid Holocene (MH)...
