Publications
Browse publications authored by our scientists. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 5350
Using the electron transport system as an indicator of organismal thermal tolerance and respiratory exploitation Using the electron transport system as an indicator of organismal thermal tolerance and respiratory exploitation
Freshwater ecosystems are undergoing rapid thermal shifts, making it increasingly important to understand species-specific responses to these changes. Traditional techniques for determining a species’ thermal tolerance are often lethal and time consuming. Using the enzyme activity associated with the electron transport system (ETS; hereafter referred to as enzyme assay) may provide a non...
Authors
Ehlana G. Stell, Shannon K. Brewer, Lindsay M. Horne, Russell A. Wright, Dennis R. DeVries
Seven dam challenges for migratory fish: Insights from the Penobscot River Seven dam challenges for migratory fish: Insights from the Penobscot River
More than a century of impoundments in the Penobscot River, Maine, USA, has contributed to population declines in migratory fish in the system. A decade of change, research, and monitoring has revealed direct and indirect ways that dams have influenced the river habitat, connectivity for migratory fish, and the food web. The removal of two main-stem dams (in 2012 and 2013) and bolstering...
Authors
Joseph D. Zydlewski, Stephen M. Coghlan, Cody Dillingham, Guillermo Figueroa-Munoz, Carolyn Merriam, Sean Smith, Rylee Smith, Daniel S. Stich, Sarah K. Vogel, Karen Wilson, Gayle B. Zydlewski
Genomic insights into isolation of the threatened Florida crested caracara (Caracara plancus) Genomic insights into isolation of the threatened Florida crested caracara (Caracara plancus)
We conducted a population genomic study of the crested caracara (Caracara plancus) using samples (n = 290) collected from individuals in Florida, Texas, and Arizona, United States. Crested caracaras are non-migratory raptors ranging from the southern tip of South America to the southern United States, including a federally protected relict population in Florida long thought to have been...
Authors
Natalie Payne, John A. Erwin, Joan L. Morrison, James F. Dwyer, Melanie Culver
Leveraging the strengths of citizen science and structured surveys to achieve scalable inference on population size Leveraging the strengths of citizen science and structured surveys to achieve scalable inference on population size
Population size is a key metric for management and policy decisions, yet wildlife monitoring programmes are often limited by the spatial and temporal scope of surveys. In these cases, citizen science data may provide complementary information at higher resolution and greater extent.We present a case study demonstrating how data from the eBird citizen science programme can be combined...
Authors
Andrew N. Stillman, Paige E. Howell, Guthrie S. Zimmerman, Emily R. Bjerre, Brian A. Millsap, Orin J. Robinson, Daniel Fink, Erica Francis Stuber, Viviana Ruiz-Gutierrez
Assessment of lesser prairie-chicken translocation through survival and lek surveys Assessment of lesser prairie-chicken translocation through survival and lek surveys
Translocation is a management tool used to restore or augment wildlife populations, but outcomes of translocations are often poorly documented and can have varying levels of success for improving wildlife population declines. The lesser prairie-chicken (Tympanuchus pallidicinctus) is a prairie grouse endemic to the southern Great Plains. In response to declining abundance and...
Authors
Elisabeth C. Teige, Liam A. Berigan, Carly S. H. Aulicky, Jonathan H. Reitz, David A. Haukos, Daniel S. Sullins, Kent A. Fricke, Kraig A. Schultz, Liza G. Rossi
Influences of landscape composition on hunter-harvested mallard body mass and condition in eastern Arkansas Influences of landscape composition on hunter-harvested mallard body mass and condition in eastern Arkansas
Waterfowl with more body mass and a greater body condition during the non-breeding season are thought to be more likely to survive and have increased productivity during the following breeding season. Body mass and body condition in waterfowl should reflect the resources available to them locally. We analyzed the relationship of landscape composition on mallard (Anas platyrhynchos) body...
Authors
John T. Veon, David G. Krementz, Luke W. Naylor, Brett Alexander DeGregorio
Validating morphometrics as a nonlethal tool to determine Arctic Grayling sex Validating morphometrics as a nonlethal tool to determine Arctic Grayling sex
Objective Some graylings Thymallus spp. possess an elongated dorsal fin and other morphological traits that can be sexually dimorphic, as demonstrated in the European Grayling T. thymallus. North American Arctic Grayling T. arcticus are assumed to follow these trends, but decisive evidence is lacking. This study aimed to determine whether sexually dimorphic characteristics, including...
Authors
WT Samuel, EG Hinkle, LE Yancy, Jeffrey A. Falke
Avoiding a macabre future for Macrhybopsis: A special section on improving management and conservation of chubs Avoiding a macabre future for Macrhybopsis: A special section on improving management and conservation of chubs
No abstract available.
Authors
Joshuah S. Perkin, Shannon K. Brewer, Anthony A. Echelle, Patrick M. Kocovsky
The effects of landscape and yard features on mammal diversity in residential yards within Northwest Arkansas, USA The effects of landscape and yard features on mammal diversity in residential yards within Northwest Arkansas, USA
The human footprint is rapidly expanding, and wildlife habitat is continuously being converted to human residential properties. Surviving wildlife that reside in developing areas are displaced to nearby undeveloped areas. However, some animals can co-exist with humans and acquire the necessary resources (food, water, shelter) within the human environment. This ability to coexist may be
Authors
Emily P. Johansson, Brett Alexander DeGregorio
Positive but un-sustained wildlife community responses to reserve expansion and mammal reintroductions in South Africa Positive but un-sustained wildlife community responses to reserve expansion and mammal reintroductions in South Africa
The creation and expansion of protected areas, coupled with wildlife reintroductions, are increasingly used as conservation measures to combat wildlife declines worldwide. Although these types of restoration efforts are expected be beneficial to wildlife populations, variable species management and interactions among species within complex food webs have the potential to lead to...
Authors
Shannon K. Brewer, Lia Keener, Lourens H. Swanepoel, Craig Sholto-Douglas, Axel Hunnicutt, Goncalo Curveira-Santos
Identifying demographic and environmental drivers of population dynamics and viability in an endangered top predator using an integrated model Identifying demographic and environmental drivers of population dynamics and viability in an endangered top predator using an integrated model
Knowledge about the demographic and environmental factors underlying population dynamics is fundamental to designing effective conservation measures to recover depleted wildlife populations. However, sparse monitoring data or persistent knowledge gaps about threats make it difficult to identify the drivers of population dynamics. In situations where small, declining, or depleted...
Authors
Amanda J. Warlick, Gina K Himes Boor, Tamara L McGuire, Kim E. W. Shelden, Eiren K. Jacobson, Charlotte Boyd, Paul Wade, Andre E. Punt, Sarah J. Converse
HABs and HAB nots: Dynamics of phytoplankton blooms across similar oligotrophic reservoirs HABs and HAB nots: Dynamics of phytoplankton blooms across similar oligotrophic reservoirs
Increasing frequency and intensity of cyanobacterial Harmful Algal Blooms (HABs) threaten human and aquatic ecosystem health. Improving our understanding of HABs across a range of systems will be critical to understanding and potentially minimizing risk, especially where HABs are occurring in less productive and less studied waterbodies. Here, the characteristics and annual dynamics of
Authors
Christina Amy Murphy, Amanda M.M. Pollock, Ivan Arismendi, Sherri L. Johnson