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: 5110
Fish misidentification and potential implications to monitoring within the San Francisco Estuary, California Fish misidentification and potential implications to monitoring within the San Francisco Estuary, California
Fish monitoring programs often rely on the collection, species identification, and counting of individual fish over time to inform natural resource management decisions. Thus, the utility of the data used to inform these decisions can be negatively affected by species misidentification. Fish species misidentification bias can be minimized by confirming identification using genetic...
Authors
J. E. Kirsch, J. L. Day, James T. Peterson, D. K. Fullerton
How well do proxy species models inform conservation of surrogate species? How well do proxy species models inform conservation of surrogate species?
Context Proxy species, which represent suites of organisms with similar habitat requirements, are common in conservation. Landscape Capability (LC) models aim to quantify the spatially-explicit capability of landscapes to support proxy species that represent suites of forest birds.Objectives We evaluated the North Atlantic Landscape Conservation Cooperative (NALCC) proxy models of LC and...
Authors
Zachary. G. Loman, William V. Deluca, Daniel J. Harrison, Cyndy Loftin, W. Scott Schwenk, Petra B. Wood
Efficiently approximating the Pareto frontier: Hydropower dam placement in the Amazon basin Efficiently approximating the Pareto frontier: Hydropower dam placement in the Amazon basin
Real–world problems are often not fully characterized by a single optimal solution, as they frequently involve multiple competing objectives; it is therefore important to identify the so-called Pareto frontier, which captures solution trade-offs. We propose a fully polynomial-time approximation scheme based on Dynamic Programming (DP) for computing a polynomially succinct curve that...
Authors
Xiaojian Wu, Jonathan Gomes-Selman, Qinru Shi, Yexiang Xue, Roosevelt Garcia-Villacorta, Eliza Anderson, Suresh Sethi, Scott Steinschneider, Alexander Flecker, Carla P. Gomes
Predicting spatial factors associated with cattle depredations by the Mexican wolf (Canis lupus baileyi) with recommendations for depredation risk modeling Predicting spatial factors associated with cattle depredations by the Mexican wolf (Canis lupus baileyi) with recommendations for depredation risk modeling
Aim Predation on livestock is one of the primary concerns for Mexican wolf (Canis lupus baileyi) recovery because it causes economic losses and negative attitudes toward wolves. Our objectives were to develop a spatial risk model of cattle depredation by Mexican wolves in the USA portion of their recovery area to help reduce the potential for future depredations.Location Arizona and New...
Authors
Reza Goljani Amirkhiz, Jennifer K. Frey, James W. Cain, Stewart W. Breck, David L. Bergman
Variation in angler distribution and catch rates of stocked rainbow trout in a small reservoir Variation in angler distribution and catch rates of stocked rainbow trout in a small reservoir
We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers to fish near the stocking location and...
Authors
Brian S. Harmon, Dustin R. Martin, Christopher J. Chizinski, Kevin L. Pope
Walleye recruitment success is less resilient to warming water temperatures in lakes with abundant largemouth bass populations Walleye recruitment success is less resilient to warming water temperatures in lakes with abundant largemouth bass populations
Lakes respond heterogeneously to climate, with implications for fisheries management. We analyzed walleye (Sander vitreus) recruitment to age-0 in 359 lakes in Wisconsin, USA, to (i) quantify the relationship between annual water temperature degree days (DD) and walleye recruitment success and (ii) identify the influence of lake characteristics — area, conductivity, largemouth bass...
Authors
Gretchen J. A. Hansen, Stephen R. Midway, Tyler Wagner
Managing forest habitat for conservation-reliant species in a changing climate: The case of the endangered Kirtland’s Warbler Managing forest habitat for conservation-reliant species in a changing climate: The case of the endangered Kirtland’s Warbler
Conservation and recovery of species of concern necessitates evaluating forest habitat conditions under changing climate conditions, especially in the early stages of the delisting process. Managers must weigh implications of near-term habitat management activities within the context of changing environmental conditions and a species’ biological traits that may influence their...
Authors
Deahn M. Donner, Donald J. Brown, Christine Ribic, Mark Nelson, Tim Greco
Behavior and reproductive ecology of the Sicklefin Redhorse: An imperiled southern Appalachian Mountain fish Behavior and reproductive ecology of the Sicklefin Redhorse: An imperiled southern Appalachian Mountain fish
Many nongame fishes are poorly understood but are essential to maintaining healthy aquatic ecosystems globally. The undescribed Sicklefin Redhorse Moxostoma sp. is a rare, imperiled, nongame fish endemic to two southern Appalachian Mountain river basins. Little is known of its behavior and ecology, but this information is urgently needed for conservation planning. We assessed the spatial...
Authors
Scott D. Favrot, Thomas J. Kwak
Will Alaska's fisheries regime prove resilient? Kenai River fishery management as a model for adaptive governance Will Alaska's fisheries regime prove resilient? Kenai River fishery management as a model for adaptive governance
No abstract available.
Authors
James E. Powell, Mark S. Wipfli, Keith R. Criddle, Erik R. Schoen
Diel predator activity drives a dynamic landscape of fear Diel predator activity drives a dynamic landscape of fear
A “landscape of fear” (LOF) is a map that describes continuous spatial variation in an animal's perception of predation risk. The relief on this map reflects, for example, places that an animal avoids to minimize risk. Although the LOF concept is a potentially unifying theme in ecology that is often invoked to explain the ecological and conservation significance of fear, little is known...
Authors
Michel T. Kohl, Daniel R. Stahler, Matthew C. Metz, James D. Forester, Matthew J. Kauffman, Nathan Varley, P.J. White, Douglas W. Smith, Daniel R. MacNulty
The role of driving factors in historical and projected carbon dynamics of upland ecosystems in Alaska The role of driving factors in historical and projected carbon dynamics of upland ecosystems in Alaska
It is important to understand how upland ecosystems of Alaska, which are estimated to occupy 84% of the state (i.e., 1,237,774 km2), are influencing and will influence state‐wide carbon (C) dynamics in the face of ongoing climate change. We coupled fire disturbance and biogeochemical models to assess the relative effects of changing atmospheric carbon dioxide (CO2), climate, logging and...
Authors
Hélène Genet, Yujie He, Zhou Lyu, A. David McGuire, Qianlai Zhuang, Joy S. Clein, David D'Amore, Alec Bennett, Amy Breen, Frances Biles, Eugénie S. Euskirchen, Kristofer Johnson, Tom Kurkowski, Svetlana Schroder, Neal J. Pastick, T. Scott Rupp, Bruce K. Wylie, Yujin Zhang, Xiaoping Zhou, Zhiliang Zhu
Severe Drought Impacts Female Pheasant Physiology in Southwest Nebraska Severe Drought Impacts Female Pheasant Physiology in Southwest Nebraska
In 2012, Nebraska experienced one of the worst droughts since the 1930s, accompanied by abnormally high temperatures. We studied the impacts of the 2012 summer drought on female ring-necked pheasant (Phasianus colchicus) body condition and baseline and stress-induced corticosterone concentrations (CORT). We hypothesized that drought conditions would reduce pheasant body condition...
Authors
J. A. Laskowski, G. C. Bachman, Joseph J. Fontaine