Sediment-ecological connectivity in a large river network
John T. Kemper, R. D. Thaxton, Sara L. Rathburn, Jonathan M. Friedman, Erich R. Mueller, Michael L. Scott
2022, Earth Surface Processes and Landforms (47) 639-657
Sediment eroded from the headwaters of a large basin strongly influences channels and ecosystems far downstream, but the connection is often difficult to trace. Disturbance-dependent riparian trees are thought to rely primarily on floods for formation of the sand bars necessary for seedling establishment, but pulses of sediment should also...
Next-generation lampricides: A three-stage process to develop improved control tools for invasive sea lamprey
Steve Lantz, Bob Adair, Jon Amberg, Roger A. Bergstedt, Michael A. Boogaard, Ugo Bussy, Margaret F. Docker, Erin S. Dunlop, Alex Gonzalez, Terrance Hubert, Michael J. Siefkes, Paul Sullivan, Steve Whyard, Michael P. Wilkie, Bradley Young, Andrew M. Muir
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 692-702
Successful integrated management of the invasive predatory sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes of North America is owed largely to the long history of beneficial use of two lampricides: 3-trifluoromethyl-4-nitrophenol (TFM) and 2′,5-dichloro-4′-nitrosalicylanilide (niclosamide). Ensuring continued successful sea lamprey control necessitates consideration of possible next-generation lampricides to...
Experiences in LP-IoT: EnviSense deployment of remotely reprogrammable environmental sensors
Reese Grimsley, Mathieu D. Marineau, Robert A. Iannucci
2022, Conference Paper, LP-IoT '21: Proceedings of the 1st ACM Workshop on No Power and Low Power Internet-of-Things
The advent of Low Power Wide Area Networks (LPWAN) has improved the feasibility of wireless sensor networks for environmental sensing across wide areas. We have built EnviSense, an ultra-low power environmental sensing system, and deployed over a dozen of them across two locations in Northern California for hydrological monitoring applications...
Temperature-based modeling of incubation period to protect loggerhead hatchlings on an urban beach in Northwest Florida
Kennard P. Watson, Margaret Lamont
2022, Journal of Experimental Marine Biology and Ecology (546)
Sea turtle hatchlings face many natural and anthropogenic threats during their short journey to the water after emerging from nests. Reducing hatchling mortality is critical to population recovery of imperiled sea turtle species; however, protecting hatchlings is particularly challenging on beaches degraded by human development and disturbances, including artificial lighting. Managers...
Ontogeny of eDNA shedding during early development in Chinook Salmon (Oncorhynchus tshawytscha)
Carl Ostberg, Dorothy M. Chase
2022, Environmental DNA (4) 339-348
Knowledge of the timing of major life history events in aquatic species is important for informing conservation and resource management planning. Accordingly, surveys of environmental DNA (eDNA) have been performed to determine the efficacy of eDNA for providing information on life history events, primarily focusing on...
Fatty acid profiles of feeding and fasting bears: Estimating calibration coefficients, the timeframe of diet estimates, and selective mobilization during hibernation
Gregory W. Thiemann, Karyn D. Rode, Joy A Erlenbach, Suzanne Budge, Charles T. Robbins
2022, Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology (192) 379-395
Accurate information on diet composition is central to understanding and conserving carnivore populations. Quantitative fatty acid signature analysis (QFASA) has emerged as a powerful tool for estimating the diets of predators, but ambiguities remain about the timeframe of QFASA estimates and the need to account for...
Biodiversity–productivity relationships in a natural grassland community vary under diversity loss scenarios
Qingmin Pan, Amy Symstad, Yongfei Bai, Jianhui Huang, Jianguo Wu, Shahid Naeem, Dima Chen, Dashuan Tian, Qibing Wang, Xingguo Han
2022, Journal of Ecology (110) 210-220
Understanding the biodiversity–productivity relationship and underlying mechanisms in natural ecosystems under realistic diversity loss scenarios remains a major challenge for ecologists despite its importance for predicting impacts of rapid loss of biodiversity worldwide. Here we report the results of a plant functional group (PFG) removal experiment conducted on the...
Recruitment bottlenecks for age-0 walleye in northern Wisconsin lakes
Jason Gostiaux, Hadley I. A. Boehm, Nathan J. Jaksha, Daniel J. Dembkowski, Joseph M. Hennessy, Daniel A. Isermann
2022, North American Journal of Fisheries Management (42) 507-522
Some northern Wisconsin lakes have shown declines in catches of age-0 Walleye Sander vitreus in standardized fall electrofishing sampling, suggesting that recruitment bottlenecks are occurring in the first several months of life. In 2016 and 2017, we sampled six lakes with declining trends in natural Walleye recruitment (D-NR lakes) and seven lakes...
Activity-based, genome-resolved metagenomics uncovers key populations and pathways involved in subsurface conversions of coal to methane
Luke J. McKay, Heidi J. Smith, Elliott Barnhart, Hannah S. Schweitzer, Rex R. Malmstrom, Danielle Goudeau, Matthew W. Fields
2022, The ISME Journal (16) 915-926
Microbial metabolisms and interactions that facilitate subsurface conversions of recalcitrant carbon to methane are poorly understood. We deployed an in situ enrichment device in a subsurface coal seam in the Powder River Basin (PRB), USA, and used BONCAT-FACS-Metagenomics to identify translationally active populations involved in methane generation from a variety...
Density structure of the island of Hawai’i and the implications for gravity-driven motion of the south flank of Kilauea volcano
Roger P. Denlinger, Ashton F. Flinders
2022, Geophysical Journal International (228) 1793-1807
The discovery that large landslides dissected the Hawaiian islands, scattering debris over thousands of square kilometers of seafloor, changed our ideas of island growth and evolution. The evidence is consistent with catastrophic flank collapse during volcano growth, and draws our focus to the currently active island of Hawai’i, the volcanoes...
Modeling seismic network detection thresholds using production picking algorithms
David C. Wilson, Emily Wolin, William L. Yeck, Robert E. Anthony, Adam T. Ringler
2022, Seismological Research Letters (93) 149-160
Estimating the detection threshold of a seismic network (the minimum magnitude earthquake that can be reliably located) is a critical part of network design and can drive network maintenance efforts. The ability of a station to detect an earthquake is often estimated by assuming the...
Snow depth retrieval with an autonomous UAV-mounted software-defined radar
S. Prager, Graham A. Sexstone, Daniel J McGrath, John W, Fulton, Mahta Moghaddam
2022, Transactions on Geoscience and Remote Sensing (TGARS) (60)
We present results from a field campaign to measure seasonal snow depth at Cameron Pass, Colorado, using a synthetic ultrawideband software-defined radar (SDRadar) implemented in commercially available Universal Software Radio Peripheral (USRP) software-defined radio hardware and flown on a small hexacopter unmanned aerial vehicle (UAV). We...
From site to system: Approaches for producing system-wide estimates of fish habitat in large rivers
H. E. Robinson, Mark J. Henderson, Russell Perry, Damon H. Goodman, Nicholas A. Som
2022, River Research and Applications (38) 1192-130
Worldwide, many productive rivers are dam-regulated and rely on flow management strategies that must balance support of ecological processes with human water use. One component of evaluating this balance is to understand ecological consequences of alternative flow management strategies, which has often been accomplished by coupling...
A new approach for representing agent-environment feedbacks: Coupled agent-based and state-and-transition simulation models
Brian W. Miller, Leonardo Frid
2022, Landscape Ecology (37) 43-58
ContextAgent-based models (ABMs) and state-and-transition simulation models (STSMs) have proven useful for understanding processes underlying social-ecological systems and evaluating practical questions about how systems might respond to different scenarios. ABMs can simulate a variety of agents (autonomous units, such as wildlife or people); agent characteristics, decision-making, adaptive behavior,...
Can the impact of canopy trees on soil and understory be altered using litter additions?
Stephanie G. Yelenik, Evan M Rehm, Carla M. D’Antonio
2022, Ecological Applications (32)
Trees can have large effects on soil nutrients in ways that alter succession, particularly in the case of nitrogen-(N)-fixing trees. In Hawaiʻi, forest restoration relies heavily on use of a native N-fixing tree, Acacia koa (koa), but this species increases soil-available N and likely facilitates competitive dominance of...
Central-West Siberian-breeding Bar-tailed Godwits (Limosa lapponica) segregate in two morphologically distinct flyway populations
Roeland A. Bom, Jesse R. Conklin, Yvonne I. Verkuil, Jose A. Alves, Jimmy De Fouw, Anne Dekinga, Chris J. Hassell, Raymond H. G. Klaassen, Eldar Rakhimberdiev, Andy Y. Kwarteng, Afonso Rocha, Job ten Horn, T. Lee Tibbitts, Pavel S. Tomkovich, Reginald Victor, Theunis Piersma
Zhijun Ma, editor(s)
2022, Ibis (164) 468-485
Long-distance migratory species often include multiple breeding populations, with distinct migration routes, wintering areas and annual-cycle timing. Detailed knowledge on population structure and migratory connectivity provides the basis for studies on the evolution of migration strategies and for species conservation. Currently, five subspecies of Bar-tailed Godwits Limosa...
Retention and dimensional changes of evergreen brush piles within a flood control reservoir
C.A. Aldridge, D.M. Norris, H.R. Hatcher, G. Coppola, M.E. Colvin, Leandro E. Miranda
2022, Journal of Fish and Wildlife Management (13) 223-235
Brush piles (i.e., trees and large woody debris) are often installed in reservoirs to supplement fish habitat. The retention and dimensional change of brush piles after installation is important information that can be used to maximize the effectiveness of this management action. We evaluated the retention and dimensional change of...
Joint effects of climate, tree size, and year on annual tree growth derived using tree-ring records of ten globally distributed forests
Kristina J. Anderson-Teixeira, Valentine Herrmann, Christy Rollinson, Bianca Gonzales, Erika B. Gonzalez-Akre, Neil Pederson, M. Ross Alexander, Craig D. Allen, Raquel Alfaro-Sanchez, Tala Awada, Jennifer L. Baltzer, Patrick J. Baker, Joseph D. Birch, Sarayudh Bunyavejchewin, Paolo Cherubini, Stewart J. Davies, Cameron Dow, Ryan Helcoski, Jakub Kaspar, James A. Lutz, Ellis Margolis, Justin Maxwell, Sean M. McMahon, Camille Piponiot, Sabrina E. Russo, Pavel Šamonil, Anastasia E. Sniderhan, Alan J. Tepley, Ivana Vasickova, Mart Vlam, Pieter A. Zuidema
2022, Global Change Biology (28) 245-266
Tree rings provide an invaluable long-term record for understanding how climate and other drivers shape tree growth and forest productivity. However, conventional tree-ring analysis methods were not designed to simultaneously account for the effects of climate, tree size, and other drivers on individual growth, which has limited the potential to...
Carbon flux, storage, and wildlife co-benefits in a restoring estuary
Isa Woo, Melanie J. Davis, Susan E.W. De La Cruz, Lisamarie Windham-Myers, Judith Z. Drexler, Kristin B. Byrd, Ellen Stuart-Haëntjens, Frank E Anderson, Brian A. Bergamaschi, Glynnis Nakai, Christopher S. Ellings, Sayre Hodgson
Ken W. Krauss, Zhiliang Zhu, Camille L. Stagg, editor(s)
2022, Book chapter, Wetland Carbon and Environmental Management
Tidal marsh restorations may result in transitional mudflat habitats depending on hydrological and geomorphological conditions. Compared to tidal marsh, mudflats are thought to have limited value for carbon sequestration, carbon storage, and foraging benefits for salmon. We evaluated greenhouse gas exchange, sediment carbon storage, and invertebrate production at restoration and...
Landscape- and local- level variables affect monarchs in Midwest grasslands
Anna Skye Bruce, Wayne E. Thogmartin, Chris Trosen, Karen Oberhauser, Claudio Gratton
2022, Landscape Ecology (37) 93-108
ContextIt is estimated that over one billion milkweed stems need to be restored to sustain the eastern North American migratory population of monarch butterflies; where and in what context the stems should be placed on the landscape is key to addressing habitat deficits.ObjectivesWe assessed how the...
Quantifying status and trends from monitoring surveys: Application to Pygmy Whitefish (Prosopium coulterii) in Lake Superior
Adam S van der Lee, Mark Vinson, Marten A. Koops
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 795-802
Population assessments of fish species often rely on data from surveys with different objectives, such as measuring biodiversity or community dynamics. These surveys often contain spatial–temporal dependencies that can greatly influence conclusions drawn from analyses. Pygmy whitefish (PWF, Prosopium coulterii) populations in Lake Superior were recently assessed as Threatened by the...
A common garden super-experiment: An impossible dream to inspire possible synthesis
Travis E. Huxman, Daniel E. Winkler, Kailen A. Mooney
2022, Journal of Ecology (110) 997-1004
Global change threatens plant diversity and disrupts its interrelationship with ecosystem structure and function. This disruption in turn undermines confidence in the knowledge ecologists produce, and whether it will translate into multidisciplinary research settings or guide the effective management of natural lands.To address this challenge, ecology needs to consider...
Predicting regional fluoride concentrations at public and domestic supply depths in basin-fill aquifers of the western United States using a random forest model
Celia Z Rosecrans, Kenneth Belitz, Katherine Marie Ransom, Peter B. McMahon, Paul E. Stackelberg
2022, Science of the Total Environment (806)
A random forest regression (RFR) model was applied to over 12,000 wells with measured fluoride (F) concentrations in untreated groundwater to predict F concentrations at depths used for domestic and public supply in basin-fill aquifers of the western United...
Avian community response to a novel environment: Commercial forestry in the Campos grasslands of South America
J.A. Martinez-Lanfranco, Francisco Vilella, D.A. Miller
2022, Forest Ecology and Management (503)
Establishing commercial tree plantations in native grassland ecosystems introduces a different structural and functional vegetation cover type, with expected implications for biodiversity. To better understand biodiversity responses to afforestation, we conducted a resource-use study with birds as a focal group, during the 2013–2014 breeding season in the Northern Campos grasslands...
Grasslands maintain stability in productivity through compensatory effects and dominant species stability under extreme precipitation patterns
Wenlan Gao, Linfeng Li, Seth M. Munson, Xiaoyong Cui, Yanfen Wang, Yanbin Hao
2022, Ecosystems (25) 1150-1165
Extreme climatic events are likely to intensify under climate change and can have different effects on ecosystems depending on their timing and magnitude. Understanding how productivity responds to extreme precipitation patterns requires assessing stability and vulnerability during critical growing periods at the plant community level. In...
