Root hemiparasitic plants are associated with more even communities across North America
Jasna Hodzic, Ian S. Pearse, Evelyn M. Beaury, Jeff Corbin, Jonathan D. Bakker
2022, Ecology (103)
Root hemiparasitic plants both compete with and extract resources from host plants. By reducing the abundance of dominant plants and releasing subordinates from competitive exclusion, they can have an outsized impact on plant communities. Most research on the ecological role of hemiparasites is manipulative and focuses...
Temperature variations in the northern Gulf of Alaska across synoptic to century-long time scales
Seth L. Danielson, Tyler D. Hennon, Daniel Monson, Robert M. Suryan, Rob W. Cambell, Steven J. Baird, Kristine Holderied, Thomas J. Weingartner
2022, Deep Sea Research Part II: Topical Studies in Oceanography (203)
Surface and subsurface moored buoy, ship-based, remotely sensed, and reanalysis datasets are used to investigate thermal variability of northern Gulf of Alaska (NGA) nearshore, coastal, and offshore waters over synoptic to century-long time scales. NGA sea surface temperature (SST) showed a...
Landsat 9 geometric characteristics using underfly data
Michael J. Choate, Rajagopalan Rengarajan, James C. Storey, Mark Lubke
2022, Remote Sensing (14)
The Landsat program has a long history of providing remotely sensed data to the user community. This history is being extended with the addition of the Landsat 9 satellite, which closely mimics the Landsat 8 satellite and its instruments. These satellites contain two instruments, the Operational Land Imager (OLI) and...
A geospatial knowledge graph prototype for national topographic mapping
Dalia E. Varanka
2022, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (XLVIII-4/W1-2022) 511-516
Knowledge graphs are a form of database representation and handling that show the potential to better meet the challenges of data interoperability, semi-automated information reasoning, and information retrieval. Geospatial knowledge graphs (GKG) have at their core specialized forms of applied ontology that provide coherent spatial context to a domain of...
Trends analysis of Rangeland Condition Monitoring Assessment and Projection (RCMAP) fractional component time series (1985–2020)
Hua Shi, Matthew B. Rigge, Kory Postma, Brett Bunde
2022, GIScience & Remote Sensing (59) 1243-1265
Rangelands have a dynamic response to climate change, fire, and other anthropogenic disturbances. The Rangeland Condition, Monitoring, Assessment, and Projection (RCMAP) product aims to capture this response by quantifying the percent cover of eight rangeland components, associated error, and trends across the western United States using Landsat from 1985 to...
Understanding impacts of sea-level rise and land management on critical coastal marsh habitat
Camille Stagg
2022, Report
Coastal wetlands in the Louisiana Mississippi River Deltaic Plain (MRDP) experience some of the highest rates of relative sea-level rise (SLR) in the world, leading to elevated surface water salinity and prolonged flooding. Elevated salinity causes a shift toward more salt-tolerant vegetation communities, associated with changes in ecosystem function and...
Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams
Martin A. Briggs, Phillip J. Goodling, Zachary Johnson, Karli M. Rogers, Nathaniel P. Hitt, Jennifer H. Fair, Craig D. Snyder
2022, Hydrology and Earth System Sciences (26) 3989-4011
In mountain headwater streams, the quality and resilience of summer cold-water habitat is generally regulated by stream discharge, longitudinal stream channel connectivity and groundwater exchange. These critical hydrologic processes are thought to be influenced by the stream corridor bedrock contact depth (sediment thickness), a parameter often inferred from sparse hillslope...
Status of water-level altitudes and long-term water-level changes in the Chicot and Evangeline (undifferentiated) and Jasper aquifers, greater Houston area, Texas, 2021
Christopher L. Braun, Jason K. Ramage
2022, Scientific Investigations Report 2022-5065
Since the early 1900s, groundwater withdrawn from the primary aquifers that compose the Gulf Coast aquifer system—the Chicot and Evangeline (undifferentiated) and Jasper aquifers—has been the primary source of water in the greater Houston area, Texas. This report, prepared by the U.S. Geological Survey in cooperation with the Harris-Galveston Subsidence...
Treatment of the Chicot and Evangeline aquifers as a single hydrogeologic unit and use of geostatistical interpolation methods to develop gridded surfaces of water-level altitudes and water-level changes in the Chicot and Evangeline aquifers (undifferentiated) and Jasper aquifer, greater Houston area, Texas, 2021
Jason K. Ramage, Christopher L. Braun, John H. Ellis
2022, Scientific Investigations Report 2022-5064
The greater Houston area of Texas includes approximately 11,000 square miles and encompasses all or part of 11 counties (Harris, Galveston, Fort Bend, Montgomery, Brazoria, Chambers, Grimes, Liberty, San Jacinto, Walker, and Waller). From the early 1900s until the mid-1970s, groundwater withdrawn from the three primary aquifers that compose the...
Low levels of hybridization between sympatric cold-water-adapted Arctic cod and Polar cod in the Beaufort Sea confirm genetic distinctiveness
Robert E. Wilson, Sarah A. Sonsthagen, P. Lavretsky, A. Majewski, E. Arnason, K. Halldorsdottir, A.W. Einarsson, K. Wedemeyr, Sandra L. Talbot
2022, Arctic Science (8) 1082-1093
As marine ecosystems respond to climate change and other stressors, it is necessary to evaluate current and past hybridization events to gain insight on the outcomes and drivers of such events. Ancestral introgression within the gadids has been suggested to allow cod to inhabit a variety of habitats. Little attention...
Understory plant communities show resistance to drought, hurricanes, and experimental warming in a wet tropical forest
Aura M. Alonso-Rodriguez, Tana E. Wood, Jamarys Torres-Diaz, Molly A. Cavaleri, Sasha C. Reed, Benedicte Bachelot
2022, Frontiers in Forests and Global Change (5)
Global climate change has led to rising temperatures and to more frequent and intense climatic events, such as storms and droughts. Changes in climate and disturbance regimes can have non-additive effects on plant communities and result in complicated legacies we have yet to understand. This is especially true for...
A comprehensive assessment of mangrove species and carbon stock on Pohnpei, Micronesia
Victoria Woltz, Elitsa I. Peneva-Reed, Zhiliang Zhu, Eric L. Bullock, Richard A. MacKenzie, Maybeleen Apwong, Ken Krauss, Dean B. Gesch
Sotirios Koukoulas, editor(s)
2022, PLoS ONE (17)
Mangrove forests are the most important ecosystems on Pohnpei Island, Federated States of Micronesia, as the island communities of the central Pacific rely on the forests for many essential services including protection from sea-level rise that is occurring at a greater pace than the global average. As part of a...
Sediment and nutrient retention on a reconnected floodplain of an Upper Mississippi River tributary, 2013–2018
Lynn A. Bartsch, Rebecca M. Kreiling, Lance R. Gruhn, Jessica D. Garrett, William B. Richardson, Greg M. Nalley
2022, Scientific Investigations Report 2022-5030
The connection of rivers with their floodplains has been greatly reduced in agricultural drainage basins, especially in the Upper Mississippi River Basin. The restriction of the Mississippi River from its floodplain has reduced the sediment trapping and nutrient deposition capabilities of the floodplain, exacerbating water quality problems in the river...
Density, harvest rates, and growth of a reintroduced American black bear population
Joshua D Alston, Joseph D. Clark, Daniel B. Gibbs, John T. Hast
2022, Journal of Wildlife Management (86)
Less than 30% of all species reintroductions have been successful and it is important that factors associated with success or failure be identified. Officials experimentally translocated 14 adult female American black bears (Ursus americanus) from Great Smoky Mountains National Park, North Carolina and Tennessee,...
Beyond the teleseism: Introducing regional seismic and geodetic data into routine USGS finite‐fault modeling
Dara Elyse Goldberg, Pablo Koch, Diego Melgar, Sebastian Riquelme, William L. Yeck
2022, Seismological Research Letters (93) 3308-3323
The U.S. Geological Survey (USGS) National Earthquake Information Center (NEIC) routinely produces finite‐fault models following significant earthquakes. These models are spatiotemporal estimates of coseismic slip critical to constraining downstream response products such as ShakeMap ground motion estimates, Prompt Assessment of Global Earthquake for Response loss estimates, and ground failure assessments....
Are we falling short on restoring oysters at a regional scale?
Megan K. La Peyre, Danielle Aguilar Marshall, Sarah Catherine Leblanc Buie, Ann Hijuelos, Gregory Steyer
2022, Environmental Management (70) 581-592
Across coastal areas of the northern Gulf of Mexico, the Deepwater Horizon oil spill resulted in significant ecological injury, and over 8 billion USD directed to restoration activities. Oyster restoration projects were implemented with regional goals of restoring oyster abundance, spawning stock, and population resilience. Measuring regional or large-scale ecosystem restoration outcomes...
Evaluating hydrologic region assignment techniques for ungaged basins in Alaska, USA
Theodore B. Barnhart, William H. Farmer, John C. Hammond, Graham A. Sexstone, Janet H. Curran, Joshua C. Koch, Jessica M. Driscoll
2022, River Research and Applications (38) 1569-1584
Building continental-scale hydrologic models in data-sparse regions requires an understanding of spatial variation in hydrologic processes. Extending these models to ungaged locations requires techniques to group ungaged locations with gaged ones to make process importance and model parameter transfer decisions to ungaged locations. This analysis (1) tested...
Evidence gaps and diversity among potential win–win solutions for conservation and human infectious disease control
Skylar R. Hopkins, Kevin D. Lafferty, Chelsea L. Wood, Sarah H Olson, Julia C Buck, Giulio A. De Leo, Kathryn Fiorella, Johanna Fornberg, Andres Garchitorena, Isabel J. Jones, Armand Kuris, Laura H Kwong, Christopher LeBoa, Ariel Elizabeth Leon, Andrea Lund, Andrew J MacDonald, Daniel Metz, Nicole Nova, Alison J. Peel, Justin V. Remais, Tara E. Stewart Merrill, Maya Wilson, Matthew Bonds, Andrew Dobson, David Lopez-Carr, Meghan Howard, Lisa Mandle, Susanne H. Sokolow
2022, The Lancet Planetary Health (6) e694-e705
As sustainable development practitioners have worked to “ensure healthy lives and promote well-being for all” and “conserve life on land and below water”, what progress has been made with win–win interventions that reduce human infectious disease burdens while advancing conservation goals? Using...
The Shallow Magmatic Plumbing System of the Deccan Traps, Evidence from Plagioclase Megacrysts and Their Host Lavas
A. Marzoli, Paul R. Renne, R Andreasen, R Spiess, M Chiaradia, Dawn Catherine Sweeney Ruth, A.J. Tholt, K Pande, Fabio J. V. Costa
2022, Journal of Petrology (63)
We investigate the shallow plumbing system of the Deccan Traps Large Igneous Province using rock and mineral data from Giant Plagioclase Basalt (GPB) lava flows from around the entire province, but with a focus on the Saurashtra Peninsula, the Malwa Plateau, and the base and top of the Western...
Juvenile salmon habitat use drives variation in growth and highlights vulnerability to river fragmentation
Suresh Sethi, Michael P. Carey, Jonathon Gerken, Bradley P. Harris, Nathan Wolf, Curry Cunningham, Felipe Restrepo, Josh Ashline
2022, Ecosphere (13)
Widespread stream network fragmentation from dams and culverts has altered habitat connectivity in river ecosystems and presents an acute threat to migratory fish. To support watershed management for an iconic migratory fish group, we assessed juvenile salmon growth outcomes across habitat use strategies and characterized how these life histories may...
Sclerochronological records of environmental variability and bivalve growth in the Pacific Arctic
David J. Reynolds, Vanessa R. von Biela, Kenneth H. Dunton, David C. Douglas, Bryan A. Black
2022, Progress in Oceanography (206)
The Pacific Arctic region has experienced, and is projected to continue experiencing, rapid climate change. Large uncertainties exist in our understanding of the impact these physical changes have on the region’s ecology. This is, in part, due to the lack of long-term...
Physics-guided graph meta learning for predicting water temperature and streamflow in stream networks
Shengyu Chen, Jacob Aaron Zwart, Xiaowei Jia
2022, Conference Paper, Proceedings of the 28th ACM SIGKDD conference on knowledge discovery and data mining
This paper proposes a graph-based meta learning approach to separately predict water quantity and quality variables for river segments in stream networks. Given the heterogeneous water dynamic patterns in large-scale basins, we introduce an additional meta-learning condition based on physical characteristics of stream segments, which allows learning different sets of...
Chapter 1: General conceptual model for climate change in the Upper San Francisco Estuary
Eva Bush, Bruce Herbold, Larry R. Brown
Samuel M. Bashevkin, Larry R. Brown, Eva Bush, Gonzalo Castillo, Denise Colombano, Rosemary Hartman, Bruce Herbold, Shruti Khanna, Annika Keeley, Nicole Kwan, Peggy W. Lehman, Brian Mahardja, Bryan G. Matthias, Catarina Pien, Marissa L. Wulff, Timothy D. Malinich, Ryan McKenzie, editor(s)
2022, IEP Technical Report 99-1
This report is a collaboration by many state and federal agencies working in the Upper San Francisco Estuary to analyze the potential impacts of climate change to different ecosystems found here. Management stategies for ecological values in the face of climate change require reliable and focused information. In this technical...
Examining industry vulnerability: A focus on mineral commodities used in the automotive and electronics industries
Ross Manley, Elisa Alonso, Nedal T. Nassar
2022, Resources Policy (78)
Automotive manufacturing is material-intensive and dependent on a broad range of mineral commodities. Moreover, the automotive manufacturing industries are reliant on complex and sometimes opaque multi-tiered global supply chains. Among the many industries on which automotive supply chains depend are the electronics and semiconductor industries, which are themselves material-intensive and reliant on...
Crowd-sourced SfM: Best practices for high resolution monitoring of coastal cliffs and bluffs
Phillipe Alan Wernette, Ian M. Miller, Andrew C. Ritchie, Jonathan A. Warrick
2022, Continental Shelf Research (245)
Structure from motion (SfM) photogrammetry is an increasingly common technique for measuring landscape change over time by deriving 3D point clouds and surface models from overlapping photographs. Traditional change detection approaches require photos that are geotagged with a differential GPS (DGPS) location, which requires expensive equipment that can limit the ability of communities and...
