Decline in biological soil crust N-fixing lichens linked to increasing summertime temperatures
Rebecca A Finger-Higgens, Michael C. Duniway, Stephen E. Fick, Erika L. Geiger, David L. Hoover, Alix A. Pfennigwerth, Matthew W. Van Scoyoc, Jayne Belnap
2022, Proceedings of the National Academies of Science (PNAS) (119)
Across many global drylands, biocrusts form a protective barrier on the soil surface and fill many critical roles in these harsh yet fragile environments. Previous short-term research suggests that climate change and invasive plant introduction can damage and alter biocrust communities, yet few long-term observations exist. Using a globally unique...
Redear Sunfish occurrence, abundance, growth, and size structure as related to abiotic and biotic factors in Florida lakes
Andrew Kenneth Carlson, Mark V. Hoyer
2022, North American Journal of Fisheries Management (42) 775-786
Panfish support popular, socioeconomically valuable fisheries across the United States. Whereas Bluegill Lepomis macrochirus and Black Crappie Pomoxis nigromaculatus receive considerable research attention, Redear Sunfish L. microlophus are seldom studied despite their wide distribution, large size, socioeconomic contributions, and invasion potential in parts of their introduced range. We evaluated Redear Sunfish occurrence, density, relative abundance, growth, and...
Hyperspectral remote sensing of white mica: A review of imaging and point-based spectrometer studies for mineral resources, with spectrometer design considerations
John Michael Meyer, Elizabeth A. Holley, Raymond F. Kokaly
2022, Remote Sensing of Environment (275)
Over the past ~30 years, hyperspectral remote sensing of chemical variations in white mica have proven to be useful for ore deposit studies in a range of deposit types. To better understand mineral deposits and to guide spectrometer design, this contribution reviews relevant papers from the fields of remote sensing, spectroscopy, and geology that have utilized spectral changes caused...
Optimizing management of invasions in an uncertain world using dynamic spatial models
Kim M. Pepin, Amy J. Davis, Rebecca S. Epanchin-Niell, Andrew M. Gormley, Joslin L. Moore, Timothy J. Smyser, H. Bradley Shaffer, William L. Kendall, Katriona Shea, Michael C. Runge, Sophie McKee
2022, Ecological Applications (32)
Dispersal drives invasion dynamics of nonnative species and pathogens. Applying knowledge of dispersal to optimize the management of invasions can mean the difference between a failed and a successful control program and dramatically improve the return on investment of control efforts. A common approach to identifying optimal management solutions for...
Fire-driven vegetation type conversion in Southern California
Alesandra D. Syphard, Theresa J Brennan-Kane, Heather Rustigian-Romsos, Jon E. Keeley
2022, Ecological Applications (32)
One consequence of global change causing widespread concern is the possibility of ecosystem conversions from one type to another. A classic example of this is vegetation type conversion (VTC) from native woody shrublands to invasive annual grasslands in the biodiversity hotspot of Southern California. Although the...
Pink-footed Shearwater Ardenna creatopus
Ryan D. Carle, Valentina Colodro, Jonathan J. Felis, Josh Adams, Peter J. Hodum
2022, Birds of the World
The Pink-footed Shearwater’s life history is tied to the Humboldt and California upwelling currents in the Eastern Pacific Ocean. It is larger than other shearwaters in its range, other than Flesh-footed Shearwater Ardenna carneipes. It is also distinct in appearance with pinkish bill and feet, pale underparts, and brown to...
Early career researchers have questions about peer review—we asked the ASLO editors for answers
Mary R. Gradoville, Bridget Deemer
2022, Limnology and Oceanography Letters (7) 185-188
Peer review is the formal means by which the scientific community assesses the originality, reproducibility, validity, and quality of a research study (Bakker and Traniello 2019). As such, peer review assures nonexperts that they can trust a study's findings (Jamieson et al. 2019). Despite the critical importance of peer review,...
Environmental drivers of biseasonal anthrax outbreak dynamics in two multihost savanna systems
Yen-Hua Huang, Kyrre Kausrud, Ayesha Hassim, Sunday O. Ochai, O. Louis van Schalkwyk, Edgar H. Dekker, Alexander Buyantuev, Claudine C. Cloete, J. Werner Kilian, John K.E. Mfune, Pauline L. Kamath, Henriette van Heerden, Wendy Christine Turner
2022, Ecological Monographs (92)
Environmental factors are common forces driving infectious disease dynamics. We compared interannual and seasonal patterns of anthrax infections in two multihost systems in southern Africa: Etosha National Park, Namibia, and Kruger National Park, South Africa. Using several decades of mortality data from each system, we assessed possible transmission mechanisms behind...
Taming the temperature: Sagebrush songbirds modulate microclimate via nest-site selection
Tayler M. Scherr, Anna D. Chalfoun
2022, Ornithology (139)
Understanding species’ responses to temperature via behavior, and the factors affecting the extent of behavioral responses, is a critical and timely endeavor given the rapid pace at which the climate is changing. The young of altricial songbirds are particularly sensitive to temperature, and parents may modulate temperatures at nests via...
Adaptation strategies and approaches for managing fire in a changing climate
Martha Sample, Andrea E. Thode, Courtney Peterson, Michael Gallagher, William T. Flatley, Megan Friggens, Alexander Evans, Rachel A. Loehman, Shaula Hedwall, Leslie A. Brandt, Maria Janowiak, Christopher W. Swanston
2022, Climate (10)
As the effects of climate change accumulate and intensify, resource managers juggle existing goals and new mandates to operationalize adaptation. Fire managers contend with the direct effects of climate change on resources in addition to climate-induced disruptions to fire regimes and subsequent ecosystem effects. In systems stressed...
Olivine and glass chemistry record cycles of plumbing system recovery after summit collapse events at Kīlauea Volcano, Hawai‘i
Kendra J. Lynn, Donald A. Swanson
2022, Journal of Volcanology and Geothermal Research (JVGR) (426)
The eruptive activity of Kīlauea Volcano (Hawai‘i) in the past 2500 years has alternated between centuries-long periods dominated either by explosive or effusive eruptions. The onset of explosive periods appears to be marked by caldera collapse events at the volcano's summit accompanied by draining of Kīlauea's magmatic plumbing system. Here...
High-resolution observations of submarine groundwater discharge reveal the fine spatial and temporal scales of nutrient exposure on a coral reef: Faga'alu, AS
Ferdinand K.J. Oberle, Nancy G. Prouty, Segun B. Adebayo, Curt D. Storlazzi
2022, Coral Reefs (41) 849-854
Submarine groundwater discharge (SGD) can deliver substantial nutrient and contaminant loads to nearshore coral reefs. Correctly scaling SGD rates from a point source to a reef is generally a linear process involving simplified assumptions on the hydrogeology, bathymetry, and nearshore hydrodynamics that are essential to properly...
Implementing a rapid deployment bridge scour monitoring system in Colorado, 2019
Mark F. Henneberg, Rodney J. Richards
2022, Scientific Investigations Report 2022-5023
The U.S. Geological Survey, in cooperation with the Colorado Department of Transportation, installed and operated real-time scour monitoring instrumentation at two bridges in Colorado in 2016 and 2017 to measure streambed elevations in real-time. The instrumentation included acoustic echosounder depth sensors mounted to the bridge substructure units with rigid conduit...
Ungulate migrations of the western United States, volume 2
Matthew Kauffman, Blake Lowrey, Jeffrey L. Beck, Jodi Berg, Scott Bergen, Joel Berger, James W. Cain III, Sarah Dewey, Jennifer Diamond, Orrin Duvuvuei, Fattebert, Jeff Gagnon, Julia Garcia, Evan Greenspan, Embere Hall, Glenn Harper, Stan Harter, Kent Hersey, Pat Hnilicka, Mark Hurley, Lee Knox, Art Lawson, Eric Maichak, James Meacham, Jerod Merkle, Arthur Middleton, Daniel Olson, Lucas Olson, Craig Reddell, Benjamin S. Robb, Gabe Rozman, Hall Sawyer, Cody Schroeder, Brandon Scurlock, Jeff Short, Scott Sprague, Alethea Steingisser, Nicole Tatman
2022, Scientific Investigations Report 2022-5008
Migration is widespread across taxonomic groups and increasingly recognized as fundamental to maintaining abundant wildlife populations and communities. Many ungulate herds migrate across the western United States to access food and avoid harsh environmental conditions. With the advent of global positioning system (GPS) collars, researchers can describe and map the...
Historical development of the U.S. Geological Survey hydrological monitoring and investigative programs at the Idaho National Laboratory, Idaho, 2002–2020
Roy C. Bartholomay
2022, Open-File Report 2022-1027
This report summarizes the historical development and operations, from 2002 to 2020, of the U.S. Geological Survey’s (USGS) hydrologic monitoring and investigative programs at the Idaho National Laboratory in cooperation with the U.S. Department of Energy. The report covers the USGS’s programs for water-level monitoring, water-quality sampling, geochemical studies,...
A comparison of monitoring designs to assess wildlife community parameters across spatial scales
Alexander Wright, Evan H. Campbell Grant, Elise F. Zipkin
2022, Ecological Applications (32)
Dedicated long-term monitoring at appropriate spatial and temporal scales is necessary to understand biodiversity losses and develop effective conservation plans. Wildlife monitoring is often achieved by obtaining data at a combination of spatial scales, ranging from local to broad, to understand the status, trends, and drivers of individual species or...
Global food-security-support-analysis data at 30-m resolution (GFSAD30) cropland-extent products—Download Analysis
Adam Oliphant, Prasad Thenkabail, Pardhasaradhi Teluguntla
2022, Open-File Report 2022-1001
IntroductionThe global food-security-support-analysis data at 30-meter resolution (GFSAD30) cropland-extent product is a project to provide high-resolution global cropland-extent data relating to water use. It is the first global-land-cover map focusing exclusively on agriculture with a 30-meter spatial resolution. The overarching goal of the GFSAD30 project is to produce consistent and...
Phoretic sharksuckers (Echeneis naucrates) associated with an elasmobranch host occupy higher relative trophic positions
Cheston T. Peterson, Beverly A. Bachman, Richard Kraus, R. Dean Grubbs
2022, Marine Ecology Progress Series (687) 125-132
The relationship between phoretic diskfishes and their hosts is a classic example of marine symbiosis, yet surprisingly few studies have quantified this trophic relationship. We investigated the hypothesis that by consuming host parasites and prey scraps phoretic diskfishes (Echeneidae) feed at a higher relative trophic position than free-living individuals through...
Quality of surface water in Missouri, water year 2020
Camille E. Buckley
2022, Data Report 1153
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, monitors stations designed for the Ambient Water-Quality Monitoring Network, a collection of stations that monitor streams and springs in Missouri. During water year 2020 (October 1, 2019, through September 30, 2020), the U.S. Geological Survey collected water-quality...
Integrating growth and survival models for flexible estimation of size-dependent survival in a cryptic, endangered snake
Jonathan P. Rose, Richard Kim, Elliot James Schoenig, Patrick C. Lien, Brian J. Halstead
2022, Ecology and Evolution (12)
Estimates of demographic rates for animal populations and individuals have many applications for ecological and conservation research. In many animals, survival is size-dependent, but estimating the form of the size–survival relationship presents challenges. For elusive species with low recapture rates, individuals’ size will be unknown at many points in time....
Importance of local weather and environmental gradients on demography of a broadly distributed temperate frog
David S. Pilliod, Rebecca McCaffery, Robert Arkle, Rick D. Scherer, Jacqueline B. Cupples, Lisa A. Eby, Blake R. Hossack, Hallie Lingo, Kristin N. Lohr, Bryce A. Maxell, Megan J. McGuire, Chad Mellison, Marisa K. Meyer, James C. Munger, Teri Slatauski, Rachel Van Horne
2022, Ecological Indicators (136)
Amphibian populations are sensitive to environmental temperatures and moisture, which vary with local weather conditions and may reach new norms and extremes as contemporary climate change progresses. Using long-term (11–16 years) mark-recapture data from 10 populations of the Columbia spotted frog (Rana luteiventris) from across its U.S. range, we addressed...
A golden era for volcanic gas geochemistry?
Christoph Kern, Alessandro Aiuppa, J. Maarten de Moor
2022, Bulletin of Volcanology (84)
The exsolution, rise, expansion, and separation of volatiles from magma provides the driving force behind both effusive and explosive volcanic eruptions. The field of volcanic gas geochemistry therefore plays a key role in understanding volcanism. In this article, we summarize the most important findings of the past few decades and...
Late season movement and habitat use by Oregon spotted frog (Rana pretiosa) in a large reservoir in Oregon, USA
Christopher Pearl, Jennifer Rowe, Brome McCreary, Michael J. Adams
2022, Journal of Herpetology (56) 8-17
Dam-created reservoirs are common landscape features that can provide habitat for amphibians, but their water level fluctuations and nonnative predators can differ markedly from more natural habitats. We compared fall movement and habitat use by the Oregon Spotted Frog (Rana pretiosa) in the reservoir pool with nearby river...
Climate refugia for Pinus spp. in topographic and bioclimatic environments of the Madrean sky islands of México and the United States
Sandra L. Haire, Miguel L. Villarreal, Citlali Cortes Montano, Aaron D. Flesch, Jose M. Iniguez, Jose Raul Romo-Leon, Jamie S. Sanderlin
2022, Plant Ecology (223) 577-598
Climate refugia, or places where habitats are expected to remain relatively buffered from regional climate extremes, provide an important focus for science and conservation planning. Within high-priority, multi-jurisdictional landscapes like the Madrean sky islands of the United States and México, efforts to identify and manage climate refugia are hindered by...
Reassessing perennial cover as a driver of duck nest survival in the Prairie Pothole Region
Aaron T. Pearse, Michael J. Anteau, Max Post van der Burg, Mark H. Sherfy, Thomas K. Buhl, Terry L. Shaffer
2022, Journal of Wildlife Management (86)
Conservation plans designed to sustain North American duck populations prominently feature a key hypothesis stating that the amount of the landscape in perennial cover surrounding upland duck nests positively influences nest survival rates. Recent conflicting research testing this hypothesis creates ambiguity regarding which management actions to pursue and where to...
