Climate change weakens the impact of disturbance interval on the growth rate of natural populations of Venus flytrap
Allison M Louthan, Melina Keighron, Elsita Kiekebusch, Heather Cayton, Adam J. Terando, William F. Morris
2022, Ecological Monographs (92)
Disturbances elicit both positive and negative effects on organisms; these effects vary in their strength and their timing. Effects of disturbance interval (i.e., the length of time between disturbances) on population growth will depend on both the timing and strength of positive and negative effects of disturbances. Climate change can...
A machine learning approach to predicting equilibrium ripple wavelength
Ryan E. Phillip, Allison M. Penko, Margaret L. Palmsten, Carter B. DuVal
2022, Environmental Modeling and Software (157)
Sand ripples are geomorphic features on the seafloor that affect bottom boundary layer dynamics including wave attenuation and sediment transport. We present a new equilibrium ripple predictor using a machine learning approach that outputs a probability distribution of wave-generated equilibrium wavelengths and statistics including an estimate of ripple height, the...
Forecasting explosions at Sinabung Volcano, Indonesia, based on SO2 emission rates
Syegi Kunrat, Christoph Kern, Hilma Alfianti, Allan Lerner
2022, Frontiers in Earth Science (10)
Dome-building volcanic eruptions are often associated with frequent Vulcanian explosions, which constitute a substantial threat to proximal communities. One proposed mechanism driving such explosions is the sealing of the shallow volcanic system followed by pressurization due to gas accumulation beneath the seal. We investigate this hypothesis at Sinabung...
Climate matching with the climatchR R package
Richard A. Erickson, Peder S Engelstad, Catherine S. Jarnevich, Helen Sofaer, Wesley M. Daniel
2022, Environmental Software & Modeling (157)
Climate matching allows comparisons of climatic conditions between different locations to understand location and species range climatic suitability. The approach may be used as part of horizon scanning exercises such as those conducted for invasive species. We implemented the CLIMATCH algorithm into...
The influence of satellite-derived environmental and oceanographic parameters on marine turtle time at surface in the Gulf of Mexico
Kelsey E. Roberts, Lance P. Garrison, Joel G. Ortega-Ortiz, Chuanmin Hu, Yingjun Zhang, Christopher R. Sasso, Margaret Lamont, Kristen Hart
2022, Remote Sensing (14)
The aftermath of the 2010 Deepwater Horizon oil spill highlighted the lack of baseline spatial, behavioral, and abundance data for many species, including imperiled marine turtles, across the Gulf of Mexico. The ecology of marine turtles is closely tied to their vertical movements within the water column...
A reproducible and reusable pipeline for segmentation of geoscientific imagery
Daniel D. Buscombe, Evan B. Goldstein
2022, Earth and Space Science (9)
Segmentation of Earth science imagery is an increasingly common task. Among modern techniques that use Deep Learning, the UNet architecture has been shown to be a reliable for segmenting a range of imagery. We developed software–Segmentation Gym–to implement a data-model pipeline for segmentation of scientific imagery using a family of...
Simulation of heat flow in a synthetic watershed: Lags and dampening across multiple pathways under a climate-forcing scenario
Daniel T. Feinstein, Randall J. Hunt, Eric D. Morway
2022, Water (14)
Although there is widespread agreement that future climates tend toward warming, the response of aquatic ecosystems to that warming is not well understood. This work, a continuation of companion research, explores the role of distinct watershed pathways in lagging and dampening climate-change signals. It subjects a synthetic...
Direct and indirect influences of macrophyte cover on abundance and growth of juvenile Atlantic salmon
Jessica E Marsh, J. Iwan Jones, Rasmus B. Lauridsen, James Grace, Pavel Kratina
2022, Freshwater Biology (67) 1861-1872
1. The relationships between macrophytes and the physical and biological characteristics of the environments that aquatic organisms inhabit are complex. Previous studies have shown that the macrophytes, Ranunculus (subgenus Batrachium), which are dominant in lowland chalk streams and widespread across Europe, can enhance juvenile Atlantic salmon abundance and growth to...
Landscape genetics of a sub-alpine toad: Climate change predicted to induce upward range shifts via asymmetrical migration corridors
Paul A. Maier, Amy G. Vandergast, Steven M Ostoja, Andres Aguilar, Andrew J. Bohonak
2022, Heredity (129) 257-272
Climate change is expected to have a major hydrological impact on the core breeding habitat and migration corridors of many amphibians in the twenty-first century. The Yosemite toad (Anaxyrus canorus) is a species of meadow-specializing amphibian endemic to the high-elevation Sierra Nevada Mountains of California. Despite living entirely on federal...
Monitoring framework to evaluate effectiveness of aquatic and floodplain habitat restoration activities for native fish along the Willamette River, northwestern Oregon
Mackenzie K. Keith, J. Rose Wallick, Rebecca L. Flitcroft, Tobias J. Kock, Laura A. Brown, Rich Miller, Joan C. Hagar, Kathleen Guillozet, Krista L. Jones
2022, Open-File Report 2022-1037
Since 2008, large-scale restoration programs have been implemented along the Willamette River, Oregon, to address historical losses of floodplain habitats caused by dam construction, bank protection, large wood removal, land conversion, and other anthropogenic influences. The Willamette Focused Investment Partnership (WFIP) restoration initiative brings together more than 16 organizations...
Earthquakes in the shadows: Why aftershocks occur at surprising locations
Jeanne L. Hardebeck, Ruth A. Harris
2022, The Seismic Record (2) 207-216
For decades there has been a debate about the relative effects of dynamic versus static stress triggering of aftershocks. According to the static Coulomb stress change hypothesis, aftershocks should not occur in stress shadows—regions where static Coulomb stress has been reduced. We show that static stress shadows substantially influence aftershock...
Long-term apparent survival of a cold-stunned subpopulation of juveniles green turtles
Robert Michael Mollenhauer, Margaret Lamont, Allen M. Foley
2022, Ecosphere
Understanding the effects of extreme weather on animal populations is fundamental to ecological and conservation sciences and species management. Climate change has resulted in both warm and cold temperature extremes, including an increased frequency of severe cold snaps at middle latitudes in North America. These unusually cold air masses cause...
A late Cenozoic kinematic model for fault motion within greater Cascadia
Douglas S. Wilson, Patricia A. McCrory
2022, Geochemistry, Geophysics, Geosystems (23)
Widely accepted tectonic reconstructions indicate at least 100 km of coast-parallel northwestward translation of the Sierra Nevada block of California and 15–20° clockwise rotation of most of Oregon since the current phase of Basin and Range extension began ∼17 Ma. These reconstructions require at least 100 km of convergence between the central Coast...
Temporal mismatch in space use by a sagebrush obligate species after large-scale wildfire
Elizabeth M. Schuyler, Christian A. Hagen, Christopher R. Anthony, Lee J. Foster, Katie M. Dugger
2022, Ecosphere (13)
The increase in size and frequency of wildfires in sagebrush steppe ecosystems has significant impacts on sagebrush obligate species. We modeled seasonal habitat use by female greater sage-grouse (Centrocercus urophasianus) in the Trout Creek Mountains of Oregon and Nevada, USA, to identify landscape characteristics that influenced sage-grouse habitat selection and...
A conceptual framework to integrate biodiversity, ecosystem function, and ecosystem service models
Sarah R. Weiskopf, Bonnie J.E. Myers, Maria Isabel Arce-Plata, Julia L. Blanchard, Simon Ferrier, Elizabeth A. Fulton, Mike Harfoot, Forest Isbell, Justin A. Johnson, Akira S. Mori, Ensheng Weng, Zuzana Harmáčková, Maria Cecilia Londono-Murcia, Brian W. Miller, Laura Pereira, Isabel M.D. Rosa
2022, BioScience (72) 1062-1073
Global biodiversity and ecosystem service models typically operate independently. Ecosystem service projections thus may be overly optimistic because they do not account for the role of biodiversity in maintaining ecological functions underpinning their provision. We review models used in recent global model intercomparison projects and develop a novel model integration...
Impacts of ocean-atmosphere teleconnection patterns on the south-central United States
Robert V. Rohli, Gregg Snedden, Elinor R. Martin, Kristine L. DeLong
Bin Yu, editor(s)
2022, Frontiers in Earth Science (10)
Recent research has linked the climate variability associated with ocean-atmosphere teleconnections to impacts rippling throughout environmental, economic, and social systems. This research reviews recent literature through 2021 in which we identify linkages among the major modes of climate variability, in the form of ocean-atmosphere teleconnections, and the impacts to temperature...
New generation hyperspectral data From DESIS compared to high spatial resolution PlanetScope data for crop type classification
Itiya P. Aneece, Daniel Foley, Prasad Thenkabail, Adam Oliphant, Pardhasaradhi G. Teluguntla
2022, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (15) 7846-7858
Thoroughly investigating the characteristics of new generation hyperspectral and high spatial resolution spaceborne sensors will advance the study of agricultural crops. Therefore, we compared the performances of hyperspectral Deutsches Zentrum fur Luftund Raumfahrt- (DLR) Earth Sensing Imaging Spectrometer (DESIS) and high spatial resolution PlanetScope in classifying eight crop types in...
Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse
Jack A. Cadigan, Navid H. Jafari, Camille Stagg, Claudia Laurenzano, Brian D. Harris, Amina E. Meselhe, Jason Dugas, Brady Couvillion
2022, Catena (218)
Coastal wetlands provide numerous ecosystem services; yet these ecosystems are increasingly vulnerable to climate change stressors, especially excessive flooding from sea-level rise and storm events. This study highlights the important contribution of vegetation belowground biomass to marsh stability and identifies loss of vegetation as a critical driver of marsh collapse....
Balancing future renewable energy infrastructure siting and associated habitat loss for migrating whooping cranes
Kristen S. Ellis, Aaron T. Pearse, David A. Brandt, Mark T. Bidwell, Wade C. Harrell, Matthew J. Butler, Max Post van der Burg
Diana Hamilton, editor(s)
2022, Frontiers in Ecology and Evolution (10)
The expansion of human infrastructure has contributed to novel risks and disturbance regimes in most ecosystems, leading to considerable uncertainty about how species will respond to altered landscapes. A recent assessment revealed that whooping cranes (Grus americana), an endangered migratory waterbird species, avoid wind-energy infrastructure during migration. However, uncertainties regarding...
Predictive models of selective cattle use of large, burned landscapes in semiarid sagebrush-steppe
Christopher R. Anthony, Matthew Germino
2022, Rangeland Ecology and Management (85) 1-8
The fire-exotic annual grass cycle is a severe threat to shrub-steppe rangelands, and a greater understanding of how livestock grazing relates to the problem is needed to guide effective management interventions. Grazing effects vary throughout shrub-steppe rangelands because livestock are selective in their use within pastures. Thus, knowing where cattle are located and...
Migration Mapper: Identifying movement corridors and seasonal ranges for large mammal conservation
Jerod A. Merkle, Joshua A. Gage, Hall Sawyer, Blake Lowrey, Matthew J. Kauffman
2022, Methods in Ecology and Evolution (13) 2397-2403
Modern tracking technology has facilitated a novel understanding of terrestrial mammal movement while revealing that movements are being truncated and lost. The first step towards conserving mobile animals is identifying movement corridors and key seasonal ranges. Yet, the identification and subsequent mapping of these...
Calibrated relative sea levels constrain isostatic adjustment and ice history in northwest Greenland
Anna Glueder, Alan Mix, Glenn A. Milne, Brendan Reilly, Jorie Clark, Martin Jakobsson, Larry Mayer, Stewart Fallon, John R. Southon, June Padman, Andrew Ross, Thomas M. Cronin, Jennifer McKay
2022, Quaternary Science Reviews (293)
Relative Sea Levels (RSLs) derived primarily from marine bivalves near Petermann Glacier, NW Greenland, constrain past regional ice-mass changes through glacial isostatic adjustment (GIA) modeling. Oxygen isotopes measured on bivalves corrected for shell-depth habitat and document changing meltwater input. Rapid RSL fall of...
Incremental caldera collapse at Kīlauea Volcano recorded in ground tilt and high-rate GNSS data, with implications for collapse dynamics and the magma system
Kyle R. Anderson, Ingrid A. Johanson
2022, Bulletin of Volcanology (84)
Ground deformation during caldera collapse at Kīlauea Volcano in 2018 was recorded in unprecedented detail on a network of real-time GNSS (Global Navigation Satellite System) and tilt instruments. Observations informed hazard assessments during the eruption and now yield insight into collapse dynamics and the magma system. The caldera grew in...
Indicators of fish population responses to avian predation with focus on double-crested cormorants
Douglas W Schultz, Brian S. Dorr, David G. Fielder, James R. Jackson, Robin L. DeBruyne
2022, Journal of Great Lakes Research (48) 1659-1668
Double-crested cormorants (Nannopterum auritum) have been implicated as causes of fish population declines in many locations across their breeding range. Two challenges facing managers are identifying fisheries population metrics indicative of cormorant impacts and determining when this evidence becomes actionable. Building upon existing studies, we conducted a meta-analysis of eight...
Brief oil exposure reduces fitness in wild Gulf of Mexico mahi-mahi (Coryphaena hippurus)
Lela S. Schlenker, John D. Stieglitz, Justin Blaine Greer, Robin Faillettaz, Chi Hin Lam, Ronald H. Hoenig, Rachael M. Heuer, Charles J. McGuigan, Christina Pasparakis, Emma B. Esch, Gabrielle M. Menard, Alexandra L. Jaroszewski, Claire B. Paris, Daniel Schlenk, Daniel D. Benetti, Martin Grosell
2022, Environmental Science and Technology (56) 13019-13028
The Deepwater Horizon (DWH) disaster released 3.19 million barrels of crude oil into the Gulf of Mexico (GOM) in 2010, overlapping the habitat of pelagic fish populations. Using mahi-mahi (Coryphaena hippurus)─a highly migratory marine teleost present in the GOM during the spill─as a model species, laboratory experiments demonstrate injuries to physiology and...
