Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42712
Assessment of three methods to evaluate the distribution of submersed aquatic vegetation in western Lake Erie Assessment of three methods to evaluate the distribution of submersed aquatic vegetation in western Lake Erie
Submersed aquatic vegetation (SAV) plays an important role in ecosystems. Inventories of SAV spatial distribution and composition are important for monitoring changes in SAV. In this study, we compared three common SAV sampling methods to quantify SAV in western Lake Erie. Aerial imagery of near-shore areas in western Lake Erie was classified using object-based image analysis (OBIA) and...
Authors
Nicole R. King, Jenny L. Hanson, Travis J. Harrison, Patrick M. Kocovsky, Christine M. Mayer
Nocturnal basking in freshwater turtles: A global assessment Nocturnal basking in freshwater turtles: A global assessment
Diurnal basking (“sunning”) is common in many ectotherms and is generally thought to be a behavioural mechanism for thermoregulation. Recent studies have reported the occurrence of nocturnal basking in a few distantly-related species of freshwater turtles, but the true extent of this behaviour is unknown, and it may be underreported due to sampling biases (e.g., not surveying for turtles...
Authors
Donald T. McKnight, Kendall Ard, Renoir J. Auguste, Gaurav Barhadiya, Michael F. Benard, Paige Boban, Martin L. Dillon, Colleen T. Downs, Brett Alexander DeGregorio, Brad Glorioso, Rachel M. Goodman, Coen Hird, Ethan C. Hollender, Malcolm Kennedy, Rosie A. Kidman, Andrhea Massey, Pearson McGovern, Max Muhlenhaupt, Kayhan Ostovar, Danusia Podgorski, Cormac Price, Beth A. Reinke, Louise M. Streeting, Jane Venezia, Jeanne Young, Eric J. Nordberg
Does coat colour influence survival? A test in a cyclic population of snowshoe hares Does coat colour influence survival? A test in a cyclic population of snowshoe hares
Some mammal species inhabiting high-latitude biomes have evolved a seasonal moulting pattern that improves camouflage via white coats in winter and brown coats in summer. In many high-latitude and high-altitude areas, the duration and depth of snow cover has been substantially reduced in the last five decades. This reduction in depth and duration of snow cover may create a mismatch...
Authors
Madan K. Oli, Alice J Kenny, Rudy Boonstra, Stan Boutin, Dennis L. Murray, Michael J.L. Peers, B. Scott Gilbert, Thomas S. Jung, Vratika Chaudhary, James E. Hines, Charles J Krebs
Energy-related wastewater contamination alters microbial communities of sediment, water, and amphibian skin Energy-related wastewater contamination alters microbial communities of sediment, water, and amphibian skin
To inform responsible energy development, it is important to understand the ecological effects of contamination events. Wastewaters, a common byproduct of oil and gas extraction, often contain high concentrations of sodium chloride (NaCl) and heavy metals (e.g., strontium and vanadium). These constituents can negatively affect aquatic organisms, but there is scarce information for how...
Authors
Brian J. Tornabene, Kelly L. Smalling, Carrie E. Givens, Emily Bea Oja, Blake R. Hossack
Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) associated with rapid ohia death and mixed Metrosideros polymorpha forests on the Island of Kauai, Hawaii Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) associated with rapid ohia death and mixed Metrosideros polymorpha forests on the Island of Kauai, Hawaii
Xyleborini (Coleoptera: Curculionidae) beetles on the island of Kauaʻi, Hawaiʻi, are of interest due to their role in the fungal disease complex, rapid ʻōhiʻa death (ROD), and the unique radiation of endemic ambrosia beetles found across the Hawaiian archipelago. We investigated the status of RODassociated and native ambrosia beetles on Kauaʻi by rearing beetles from bolts collected from...
Authors
Kylle Roy, Ellen Dunkle, Roshan Manandhar, Michelle Clark, Karl N. Magnacca, Kalli Harshman, Robert W. Peck
22 years of aquatic plant spatiotemporal dynamics in the upper Mississippi River 22 years of aquatic plant spatiotemporal dynamics in the upper Mississippi River
Macrophyte (aquatic plant) recovery has occurred in rivers worldwide, but assemblage patterns and habitat requirements are generally not well understood. We examined patterns of species composition and macrophyte abundance in the Upper Mississippi River (UMR), spanning 22 years of monitoring and a period of vegetation recovery. Non-metric multidimensional scaling (NMDS) ordination...
Authors
Alicia Carhart, Jason J. Rohweder, Danelle M. Larson
Population dynamics and harvest management of eastern mallards Population dynamics and harvest management of eastern mallards
Managing sustainable harvest of wildlife populations requires regular collection of demographic data and robust estimates of demographic parameters. Estimates can then be used to develop a harvest strategy to guide decision-making. Mallards (Anas platyrhynchos) are an important species in the Atlantic Flyway for many users and they exhibited exponential growth in the eastern United...
Authors
Anthony J. Roberts, Jeffrey A. Hostetler, Joshua C. Stiller, Patrick K. Devers, William Link
Protocol for the reintroduction of California red-legged frogs to Santa Monica Mountains National Recreation Area Protocol for the reintroduction of California red-legged frogs to Santa Monica Mountains National Recreation Area
Once common and widespread in Southern California, California red-legged frogs (Rana draytonii) began declining sometime in the middle of the 20th century. They were listed as threatened under the Endangered Species Act in 1996. Three small and isolated populations remained in Los Angeles and Ventura Counties by the start of the 21st century. The nearest population of California red...
Authors
Kathleen Semple Delaney, Mark Mendelsohn, Sarah M. Wenner, Adam R. Backlin, Elizabeth Gallegos, Robert N. Fisher, Seth P.D. Riley
Automated soft pressure sensor array-based sea lamprey detection using machine learning Automated soft pressure sensor array-based sea lamprey detection using machine learning
Sea lamprey, a destructive invasive species in the Great Lakes in North America, is among very few fishes that rely on oral suction during migration and spawning. Recently, soft pressure sensors have been proposed to detect the attachment of sea lamprey as part of the monitoring and control effort. However, human decision is still required for the recognition of patterns in the measured...
Authors
Hongyang Shi, Yu Mei, Ian González-Afanador, Claudia Chen, Scott M. Miehls, Christopher Holbrook, Nelson Sepulveda, Xiaobo Tan
The NEON Ecological Forecasting Challenge The NEON Ecological Forecasting Challenge
The 21st century continues to be characterized by major changes to the environment and the ecosystem services upon which society depends. Anticipating and responding to these changes requires that scientists explicitly forecast future conditions in real time (Dietze et al. 2018). Ecological forecasting, like weather and epidemiological forecasting, involves integrating data and models to...
Authors
R. Quinn Thomas, Carl Boettiger, Cayelan C. Carey, Michael Dietze, Leah R. Johnson, Melissa A. Kenney, Jason S. McLachlan, Jody A. Peters, Eric R. Sokol, Jake Weltzin, Alyssa Willson, Whitney M. Woelmer
Habitat use by breeding waterbirds in relation to tidal marsh restoration in the San Francisco Bay estuary Habitat use by breeding waterbirds in relation to tidal marsh restoration in the San Francisco Bay estuary
The South Bay Salt Pond Restoration Project aims to restore many former salt production ponds, now managed for wildlife and water quality, to tidal marsh. However, because managed ponds support large densities of breeding waterbirds, reduction of pond habitat may influence breeding waterbird distribution and abundance. We investigated habitat use associated with breeding, feeding, and...
Authors
Carley Rose Schacter, C. Alex Hartman, Mark P. Herzog, Sarah H. Peterson, Max L. Tarjan, Yewei Wang, Cheryl Strong, Rachel Tertes, Neil Warnock, Josh T. Ackerman
Low estradiol production of non-laying whooping cranes (Grus americana) is associated with the failure of small follicles to enter follicular hierarchy Low estradiol production of non-laying whooping cranes (Grus americana) is associated with the failure of small follicles to enter follicular hierarchy
For endangered species managed ex situ, production of offspring is a key factor to ensure healthy and self-sustaining populations. However, current breeding goals for the whooping crane (Grus americana) are impeded by poor reproduction. Our study sought to better understand mechanisms regulating ovarian function in ex situ managed whooping cranes and the regulatory function of the...
Authors
Megan E. Brown, Budhan Pukazhenthi, Glenn H. Olsen, Chris Crowe, Warren Lynch, David E Wildt, Nucharin Songsasen