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Filter Total Items: 171115

Satellite telemetry reveals space use of diamondback terrapins

Movement and space use information of exploited and imperiled coastal species is critical to management and conservation actions. While satellite telemetry has been successfully used to document movements of marine turtles, the large tag sizes available have limited use on smaller turtle species. We used small Argos-based satellite tags to document movement patterns of diamondback terrapins (Malac
Authors
Margaret Lamont, Melissa E. Price, Daniel J. Catizone

Range-wide trends in tiger conservation landscapes, 2001 - 2020

Of all the ways human beings have modified the planet over the last 10,000 years, habitat loss is the most important for other species. To address this most critical threat to biodiversity, governments, non-governmental actors, and the public need to know, in near real-time, where and when habitat loss is occurring. Here we present an integrated habitat modelling system at the range-wide scale for
Authors
Eric W. Sanderson, Dale G. Miquelle, Kim Fisher, Abishek Harihar, Chris Clark, Jesse Moy, Peter V. Potapov, Nathaniel P. Robinson, Lucinda Royte, Dustin Sampson, Jamie S Sanderlin, Charles Yackulic, Michael Belecky, Urs Breitenmoser, Christine Breitenmoser-Würsten, Pranav Chanchani, Stuart Chapman, Arpit Deomurari, Somphot Duangchantrasiri, Elisa Facchini, Thomas N.E. Gray, John Goodrich, Luke Hunter, Matthew Linkie, Willy Marthy, Akchousanh Rasphone, Sogoto Roy, Detrit Sittibal, Tshering Tempa, Mayuree Umponjan, Karen Wood

Understanding fatality patterns and sex ratios of Brazilian free-tailed bats (Tadarida brasiliensis) at wind energy facilities in western California and Texas

BackgroundOperation of wind turbines has resulted in collision fatalities for several bat species, and one proven method to reduce these fatalities is to limit wind turbine blade rotation (i.e., curtail turbines) when fatalities are expected to be highest. Implementation of curtailment can potentially be optimized by targeting times when females are most at risk, as the proportion of females limit
Authors
Sarah Licari, Amanda Hale, Sara Weaver, Sarah R. Fritts, Todd E. Katzner, David H. Nelson, Dean Williams

Nisqually River Delta—Humans and nature benefiting together

IntroductionThis is a brochure created in partnership with the U.S. Geological Survey (USGS), the Nisqually Indian Tribe, and the Billy Frank Jr. Nisqually National Wildlife Refuge. Designed for a public audience, the brochure describes the history of the Nisqually Indian Tribe, the ecology of the delta, the resources and recreational opportunities available for Refuge visitors, future challenges
Authors
Kristin B. Byrd, Isa Woo, Glynnis Nakai, Debbie Preston, Shonté Jenkins

Conclusions of evaluation of restoration for avian species at Caminada Headland and Whiskey Island, Louisiana

We conducted various analyses to determine the impact of coastal restoration on several focal avian species at Caminada Headland and Whiskey Island, Louisiana. We assessed if restoration affected avian use of restored sites by determining overall habitat changes, occupancy trends, and impacts of construction activities. Here, we summarize our findings from Chapters 2-9. For more details and additi
Authors
Darin L. Lee, Amanda Nicole Anderson, Paul Leberg, Nicholas Enwright, J. Hardin Waddle, Delaina LeBlanc, Theodore J. Zenzal

Mapping habitats and shorelines pre-, during, and post-restoration on Caminada Headland and Whiskey Island, Louisiana, 2012–2020

Barrier islands and headlands provide ecological services that are integral to economic and environmental interests. Adaptive management may help in ensuring their resilience and the continued provision of ecosystems goods and services over time. The dynamic nature of these environments makes evaluating the impacts from restoration and extreme events an important part of adaptively managing these
Authors
Hana R. Thurman, Nicholas Enwright, Wyatt C Cheney, Jason Dugas, Darin M. Lee, William Jones

An introduction to the evaluation of restoration for avian species at Caminada Headland and Whiskey Island in Louisiana

Barrier islands are crucial for protecting Louisiana’s coastal communities and ecosystems as they reduce coastal erosion and help safeguard native flora and fauna. Along the Louisiana shoreline, these islands are mostly long and thin, running parallel to the shoreline. The islands typically consist of the following components: 1) a sandy beach facing the Gulf of Mexico; 2) vegetated and non-vegeta
Authors
Delaina LeBlanc, Amanda Nicole Anderson, Paul Leberg, Hardin Waddle, Nicholas Enwright, Hana R. Thurman, Theodore J. Zenzal

Adult mosquito and butterfly exposure to permethrin and relative risk following ULV sprays from a truck-mounted sprayer

Ground applications of adulticides via a specialized truck-mounted sprayer are one of the most common practices for control of flying adult mosquitoes. Aerosols released to drift through a targeted area persist in the air column to contact and kill flying mosquitoes, but may also drift into adjacent areas not targeted by the applications where it may affect nontarget insects such as imperiled butt
Authors
Timothy Bargar, Yongxing Jiang

Differential heat shock protein responses in two species of Pacific salmon and their utility in identifying heat stress

Rapid and accelerating warming of salmon habitat has the potential to lower productivity of Pacific salmon (Oncorhynchus species) populations. Heat stress biomarkers can indicate where warming is most likely affecting fish populations; however, we often lack clear classifications that separate individuals with and without heat stress needed to make these tools operational. We conducted a heat expo
Authors
Vanessa R. von Biela, Amy M. Regish, Lizabeth Bowen, Ashley E. Stanek, Shannon C. Waters, Michael P. Carey, Christian E. Zimmerman, Jonathon Gerken, Daniel Rinella, Stephen D. McCormick

Oil and gas reclamation—Operations, monitoring methods, and standards

This publication provides broad guidance for surface management of oil and gas development with a focus on promoting successful reclamation. Successful reclamation depends on sound best management practices, clear standards and expectations, defensible monitoring for effectiveness, and management of production facilities to minimize surface disturbance. This publication provides specific guideline
Authors
Randi C. Lupardus, Janna Simonsen, Gordon Toevs, Barbara Sterling, Zachary H. Bowen, Zoe Davidson, Steve E. Hanser, Emily Kachergis, Alexander Laurence-Traynor, Nika Lepak, Rebecca K. Mann, Aleta Nafus, David S. Pilliod, Michael C. Duniway

Competition between dissolved organic matter and freshwater plankton control methylmercury isotope fractionation during uptake and photochemical demethylation

Isotope fractionation related to photochemical reactions and planktonic uptake at the base of the food web is a major uncertainty in the biological application of mercury (Hg) stable isotopes. In freshwater systems, it is unclear how competitive interactions among methylmercury (MeHg), dissolved organic matter (DOM), and phytoplankton govern the magnitude of mass-dependent and mass-independent fra
Authors
Grace Jane Armstrong, Sarah E. Janssen, Brett A. Poulin, Michael T. Tate, David P. Krabbenhoft, James P. Hurley

Hyperspectral (VNIR-SWIR) analysis of roll front uranium host rocks and industrial minerals from Karnes and Live Oak Counties, Texas Coastal Plain

VNIR-SWIR (400–2500 nm) reflectance measurements were made on the surfaces of various cores, cuttings and sample splits of sedimentary rocks from the Tertiary Jackson Group, and Catahoula, Oakville and Goliad Formations. These rocks vary in composition and texture from mudstone and claystone to sandstone and are known host rocks for roll front uranium occurrences in Karnes and Live Oak Counties, T

Authors
Bernard E. Hubbard, Tanya J. Gallegos, Victoria G. Stengel, Todd M. Hoefen, Raymond F. Kokaly, Brent Elliott