Publications
Filter Total Items: 2067
Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US Development and application of a soil organic matter-based soil quality index in mineralized terrane of the Western US
Soil quality indices provide a means of distilling large amounts of data into a single metric that evaluates the soil’s ability to carry out key ecosystem functions. Primarily developed in agroecosytems, then forested ecosystems, an index using the relation between soil organic matter and other key soil properties in more semi-arid systems of the Western US impacted by different geologic
Authors
S.W. Blecker, Lisa L. Stillings, M.C. Amacher, J.A. Ippolito, N.M. DeCrappeo
Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning
The purpose of this Data Series report is to provide the occasions, locations, and counts when golden eagles were recorded during the annual Midwinter Bald Eagle Surveys. Golden eagles (Aquila chrysaetos) are protected by Federal statutes including the Bald and Golden Eagle Protection Act (BGEPA) (16 USC 668-668c) and the Migratory Bird Treaty Act (MBTA) (16 USC 703-12). The U.S. Fish...
Authors
Wade Eakle, Patti Haggerty, Mark Fuller, Susan L. Phillips
Wildfire and invasive species in the west: challenges that hinder current and future management and protection of the sagebrush-steppe ecosystem: a Gap Report Wildfire and invasive species in the west: challenges that hinder current and future management and protection of the sagebrush-steppe ecosystem: a Gap Report
The Western Association of Fish and Wildlife Agencies (WAFWA) to satisfy the 45-day report requirement identified in Cooperative Agreement (F13AC00353) between WAFWA and the U. S. Fish and Wildlife Service (FWS) submit this “Gap Report”. This report summarizes the policy, fiscal and science challenges that land managers encounter related to the control and reduction of the invasive plant...
Authors
Kenneth F. Mayer, Pete Anderson, Jeanne Chambers, Chad Boyd, Tom Christiansen, Dawn Davis, Shawn Espinosa, Doug Havlina, Michael Ielmini, Don Kemner, Laurie Kurth, Jeremy Maestas, Brian Mealor, Ted Milesneck, Lara Niell, Mike Pellant, David A. Pyke, Joe Tague, Jason Vernon
Modelling dendritic ecological networks in space: anintegrated network perspective Modelling dendritic ecological networks in space: anintegrated network perspective
Dendritic ecological networks (DENs) are a unique form of ecological networks that exhibit a dendritic network topology (e.g. stream and cave networks or plant architecture). DENs have a dual spatial representation; as points within the network and as points in geographical space. Consequently, some analytical methods used to quantify relationships in other types of ecological networks...
Authors
Erin E. Peterson, Jay M. Ver Hoef, Dan J. Isaak, Jeffrey A. Falke, Marie-Josée Fortin, Chris E. Jordon, Kristina McNyset, Pascal Monestiez, Aaron S. Ruesch, Aritra Sengupta, Nicholas Som, E. Ashley Steel, David M. Theobald, Christian E. Torgersen, Seth J. Wenger
Regional constraints to biological nitrogen fixation in post-fire forest communities Regional constraints to biological nitrogen fixation in post-fire forest communities
Biological nitrogen fixation (BNF) is a key ecological process that can restore nitrogen (N) lost in wildfire and shape the pace and pattern of post-fire forest recovery. To date, there is limited information on how climate and soil fertility interact to influence different pathways of BNF in early forest succession. We studied asymbiotic (forest floor and soil) and symbiotic (the shrub...
Authors
Stephanie Yelenik, Steven S. Perakis, David Hibbs
A comment on "Novel scavenger removal trials increase wind turbine-caused avian fatality estimates" A comment on "Novel scavenger removal trials increase wind turbine-caused avian fatality estimates"
In a recent paper, Smallwood et al. (2010) conducted a study to compare their “novel” approach to conducting carcass removal trials with what they term the “conventional” approach and to evaluate the effects of the different methods on estimated avian fatality at a wind power facility in California. A quick glance at Table 3 that succinctly summarizes their results and provides estimated...
Authors
Manuela M.P. Huso, Wallace P. Erickson
Nitrate in watersheds: straight from soils to streams? Nitrate in watersheds: straight from soils to streams?
Human activities are rapidly increasing the global supply of reactive N and substantially altering the structure and hydrologic connectivity of managed ecosystems. There is long-standing recognition that N must be removed along hydrologic flowpaths from uplands to streams, yet it has proven difficult to assess the generality of this removal across ecosystem types, and whether these...
Authors
Elizabeth B. Sudduth, Steven S. Perakis, Emily S. Bernhardt
Population estimates for the Toiyabe population of the Columbia spotted frog (Rana luteiventris), 2004–10 Population estimates for the Toiyabe population of the Columbia spotted frog (Rana luteiventris), 2004–10
The Toiyabe population of Columbia spotted frogs (Rana luteiventris, hereafter "Toiyabe frogs") is a geographically isolated population located in central Nevada (fig. 1). The Toiyabe population is part of the Great Basin Distinct Population Segment of Columbia spotted frogs, and is a candidate for listing under the Endangered Species Act (U.S. Fish and Wildlife Service, 2011). The...
Authors
M. J. Adams, Chad Mellison, Stephanie K. Galvan
Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands Regional contingencies in the relationship between aboveground Bbomass and litter in the world’s grasslands
Based on regional-scale studies, aboveground production and litter decomposition are thought to positively covary, because they are driven by shared biotic and climatic factors. Until now we have been unable to test whether production and decomposition are generally coupled across climatically dissimilar regions, because we lacked replicated data collected within a single vegetation type...
Authors
Lydia R. O’Halloran, Elizabeth T. Borer, Eric W. Seabloom, Andrew S. MacDougall, Elsa E. Cleland, Rebecca L. McCulley, Sarah Hobbie, W. Stan Harpole, Nicole M. DeCrappeo, Cheng-Jin Chu, Jonathan D. Bakker, Kendi F. Davies, Guozhen Du, Jennifer Firn, Nicole Hagenah, Kirsten S. Hofmockel, Johannes M.H. Knops, Wei Li, Brett A. Melbourne, John W. Morgan, John L. Orrock, Suzanne M. Prober, Carly J. Stevens
Book review: Biology and conservation of martens, sables, and fishers: A new synthesis Book review: Biology and conservation of martens, sables, and fishers: A new synthesis
Mammals of the genus Martes, including martens, sables, and fishers, are mid-sized carnivores inhabiting many forested ecosystems throughout regions of North America, Europe, and Asia. This volume provides a comprehensive synthesis of the current state of knowledge pertaining to the biology and conservation of Martes species throughout the world. This volume will be an essential resource...
Authors
Kurt J. Jenkins
Application of environmental DNA for inventory and monitoring of aquatic species Application of environmental DNA for inventory and monitoring of aquatic species
This fact sheet was created to help biologists and resource managers understand emerging methods for detecting environmental DNA and their potential application for inventorying and monitoring aquatic species. It is a synthesis of published information.
Authors
David S. Pilliod, Caren S. Goldberg, Matthew B. Laramie, Lisette P. Waits
Influence of sex, migration distance, and latitude on life history expression in steelhead and rainbow trout (Oncorhynchus mykiss) Influence of sex, migration distance, and latitude on life history expression in steelhead and rainbow trout (Oncorhynchus mykiss)
Abstract:In partially migratory species, such as Oncorhynchus mykiss, the emergence of life history phenotypes is often attributed to fitness trade-offs associated with growth and survival. Fitness trade-offs can be linked to reproductive tactics that vary between the sexes, as well as the influence of environmental conditions. We found that O. my kiss outmigrants are more likely to be...
Authors
Haley A. Ohms, Matthew R. Sloat, Gordon H. Reeves, Chris E. Jordan, Jason B. Dunham