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: 42874
Biotelemetry data for Golden Eagles (Aquila chrysaetos) captured in coastal southern California, February 2017–December 2019 Biotelemetry data for Golden Eagles (Aquila chrysaetos) captured in coastal southern California, February 2017–December 2019
Because of a lack of clarity about the status of golden eagles (Aquila chrysaetos) in coastal southern California, the U.S. Geological Survey, in collaboration with U.S. Fish and Wildlife Service, California Department of Fish and Wildlife, Bureau of Land Management, and San Diego Management and Monitoring Program, began a multi-year survey and tracking program of golden eagles to...
Authors
Jeff A. Tracey, Melanie C. Madden, James C. Molden, Jeremy B. Sebes, Peter H. Bloom, Robert N. Fisher
A not so sudden impact—Historical relations between conifers and insects can help predict damage by nonnative insects A not so sudden impact—Historical relations between conifers and insects can help predict damage by nonnative insects
The arrival and establishment of nonnative insects in North America is increasingly problematic. International trade has created opportunities to move wood products and nursery stock worldwide, which has increased the risk of insect introduction to regions or countries where they are not native. One group of researchers, the High-impact Insect Invasions Working Group (HIIWG), has...
Authors
Lekeah A. Durden, Ashley N. Schulz, Angela M. Mech, Kathryn A. Thomas
A standard operating procedure for the preparation of purposely killed juvenile salmon used to test survival model assumptions A standard operating procedure for the preparation of purposely killed juvenile salmon used to test survival model assumptions
This document describes a standard operating procedure (SOP) for the preparation of purposely killed juvenile salmon, implanted with telemetry transmitters, to be released into rivers, lakes, or streams to test one of the survival model assumptions. Procedures for releases of purposely killed fish (hereinafter dead fish releases) were developed by staff from the U.S. Geological Survey’s...
Authors
Ryan G. Tomka, Theresa L. Liedtke, Conrad Frost, Collin D. Smith
A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest
This guidebook provides user-friendly overviews of a variety of spatial datasets relevant to conservation and management of natural resources in the face of climate change in the Pacific Northwest, United States. Each guidebook chapter was created using a standardized template to summarize a spatial dataset or a group of closely related datasets. Datasets were selected according to...
Authors
Jennifer M. Cartwright, Travis Belote, Kyle W. Blasch, Steve Campbell, Jeanne C. Chambers, Raymond J. Davis, Solomon Dobrowski, Jason B. Dunham, Diana Gergel, Daniel Isaak, Kristin Jaeger, Meade Krosby, Jesse Langdon, Joshua J. Lawler, Caitlin E. Littlefield, Charles H. Luce, Jeremy D Maestas, Anthony Martinez, Arjan J.H. Meddens, Julia Michalak, Sean A. Parks, Wendy Peterman, Ken Popper, Chris Ringo, Roy Sando, Michael Schindel, Diana Stralberg, David M. Theobald, Nathan Walker, Chad Wilsey, Zhiqiang Yang, Andrew Yost
Thiamine concentrations in lake trout and Atlantic salmon eggs during 14 years following the invasion of alewife in Lake Champlain Thiamine concentrations in lake trout and Atlantic salmon eggs during 14 years following the invasion of alewife in Lake Champlain
Thiamine (vitamin B1) deficiency in Great Lakes salmonines has been linked to consumption of alewife Alosa pseudoharengus. Thiamine deficiency has been recognized as a possible impediment to lake trout Salvelinus namaycush recruitment in the Great Lakes and Atlantic salmon Salmo salar recruitment in the Finger Lakes and Baltic Sea. Alewife invaded Lake Champlain in 2003 which provided an
Authors
Bret J. Ladago, Matthew H. Futia, William R. Ardren, Dale C. Honeyfield, Kevin P. Kelsey, Carrie L. Kozel, Stephen Riley, Jacques Rinchard, Donald E. Tillitt, James L. Zajicek, J. Ellen Marsden
Integrating perspectives to understand lake ice dynamics in a changing world Integrating perspectives to understand lake ice dynamics in a changing world
Ice cover plays a critical role in physical, biogeochemical, and ecological processes in lakes. Despite its importance, winter limnology remains relatively understudied. Here, we provide a primer on the predominant drivers of freshwater lake ice cover and the current methodologies used to study lake ice, including in situ and remote sensing observations, physical based models, and...
Authors
Sapna Sharma, Michael F. Meyer, Joshua Culpepper, Xiao Yang, Stephanie Hampton, Stella A. Berger, Matthew R. Brousil, Steven C. Fradkin, Scott N. Higgins, Kathi Jo Jankowski, Georgiy Kirillin, Adrianne P Smits, Emily C. Whitaker, Foad Yousef, Shuai Zhang
DNA metabarcoding of feces to infer summer diet of Pacific walruses DNA metabarcoding of feces to infer summer diet of Pacific walruses
Environmental conditions in the Chukchi Sea are changing rapidly and may alter the abundance and distribution of marine species and their benthic prey. We used a metabarcoding approach to identify potentially important prey taxa from Pacific walrus (Odobenus rosmarus divergens) fecal samples (n = 87). Bivalvia was the most dominant class of prey (66% of all normalized counts) and...
Authors
Sarah A. Sonsthagen, Chadwick V. Jay, Robert S. Cornman, Anthony S. Fischbach, Jacqueline M. Grebmeier, Sandra L. Talbot
Key components and contrasts in the nitrogen budget across a US-Canadian transboundary watershed Key components and contrasts in the nitrogen budget across a US-Canadian transboundary watershed
Watershed nitrogen (N) budgets provide insights into drivers and solutions for groundwater and surface water N contamination. We constructed a comprehensive N budget for the transboundary Nooksack River Watershed (British Columbia, Canada, and Washington, USA) using locally derived data, national statistics, and standard parameters. Feed imports for dairy (mainly in the United States)...
Authors
Jiajia Lin, Jana Compton, Chris Clark, Shabtai Bittman, Donna Schwede, Peter Homann, Peter Kiffney, David Hooper, Gary Bahr, Jill S. Baron
Benthic habitat is an integral part of freshwater Mysis ecology Benthic habitat is an integral part of freshwater Mysis ecology
Diel vertical migration (DVM) is common in aquatic organisms. The trade‐off between reduced predation risk in deeper, darker waters during the day and increased foraging opportunities closer to the surface at night is a leading hypothesis for DVM behaviour.Diel vertical migration behaviour has dominated research and assessment frameworks for Mysis , an omnivorous mid‐trophic level
Authors
Jason D. Stockwell, Brian O’Malley, Sture Hansson, Rosie C Chapina, Lars G. Rudstam, Brian Weidel
An invasive disease, sylvatic plague, increases fragmentation of black-tailed prairie dog (Cynomys ludovicianus) colonies An invasive disease, sylvatic plague, increases fragmentation of black-tailed prairie dog (Cynomys ludovicianus) colonies
Context A disease can be a source of disturbance, causing population declines or extirpations, altering species interactions, and affecting habitat structure. This is particularly relevant for diseases that affect keystone species or ecosystem engineers, leading to potentially cascading effects on ecosystems.Objective We investigated the invasion of a non-native disease, plague, to a...
Authors
Krystal M. Keuler, Gebbiana M. Bron, Randall Griebel, Katherine Richgels
Flowering plants preferred by bees of the Prairie Pothole Region Flowering plants preferred by bees of the Prairie Pothole Region
Land managers have stressed the need for improved pollinator habitat on private and public lands of the Prairie Pothole Region. Understanding flowering plant preferences of pollinators will improve the cost-effectiveness of conservation seeding mixes. The purpose of this fact sheet is to assist conservation planners and producers with developing seed mixes by highlighting flowering...
Authors
Stacy C. Simanonok, Clint Otto
Validation of the model-predicted spawning area of grass carp Ctenopharyngodon idella in the Sandusky River Validation of the model-predicted spawning area of grass carp Ctenopharyngodon idella in the Sandusky River
Spawning of grass carp, Ctenopharyngodon idella, in the Great Lakes basin was verified when eight fertilized eggs were collected in the Sandusky River, a tributary to Lake Erie, in 2015. Using a fluvial drift model (FluEgg) and simulation modeling, researchers predicted the fertilization location for those eggs was 3.8 ± 1 km (95% credible interval, CI) downstream of Ballville Dam. In...
Authors
Patrick Kocovsky, Nicole R. King, Eric Weimer, Christine Mayer, Song S. Qian