Forest and Rangeland Ecosystem Science Center

Publications

Filter Total Items: 1,755
Publication Thumbnail
Year Published: 2021

Weed-suppressive bacteria effects differ in culture compared to in soils and with or without microbial competition and separation of active ingredient

Weed-suppressive bacteria (WSB), specifically the D7 and ACK55 strains of Pseudomonas fluorescens, were previously reported to selectively inhibit growth of invasive annual grasses (IAGs) that have caused severe ecosystem degradation across much of the western US. However, recent studies show highly mixed evidence for WSB effectiveness in...

Lazarus, Brynne E.; Feris, Kevin; Germino, Matthew

Publication Thumbnail
Year Published: 2021

Disentangling the effects of multiple fires on spatially interspersed sagebrush (Artemisia spp.) communities

QuestionsRelative to a landscape with a mosaic of two sagebrush community types and increasing fire frequency, we asked: (a) do vegetation characteristics vary significantly with number of times burned for each sagebrush community; (b) how do vegetation responses to different fire frequencies compare between the two sagebrush communities?...

Shinneman, Douglas J.; McIlroy, Susan; de Graaff, Marie-Anne

Publication Thumbnail
Year Published: 2021

Limitations, lack of standardization, and recommended best practices in studies of renewable energy effects on birds and bats

Increasing global energy demand is fostering the development of renewable energy as an alternative to fossil fuels. However, renewable energy facilities may adversely affect wildlife. Facility siting guidelines recommend or require project developers complete pre‐ and postconstruction wildlife surveys to predict risk and estimate effects of...

Conkling, Tara; Loss, S. R.; Diffendorfer, James E.; Duerr, A.; Katzner, Todd E.

Publication Thumbnail
Year Published: 2020

Reptiles under the conservation umbrella of the greater sage‐grouse

In conservation paradigms, management actions for umbrella species also benefit co‐occurring species because of overlapping ranges and similar habitat associations. The greater sage‐grouse (Centrocercus urophasianus) is an umbrella species because it occurs across vast sagebrush ecosystems of western North America and is the recipient of extensive...

Pilliod, David; Jeffries, Michelle; Arkle, Robert; Olson, Deanna H.

Publication Thumbnail
Year Published: 2020

Conservation genetics of imperiled striped whipsnake in Washington

Conservation of wide-ranging species is aided by population genetic information that provides insights into adaptive potential, population size, interpopulation connectivity, and even extinction risk in portions of a species range. The Striped Whipsnake (Masticophis taeniatus) occurs across 11 western U.S. states and into Mexico but has...

Pilliod, David; Hallock, Lisa A.; Miller, Mark P.; Mullins, Thomas D.; Haig, Susan M.

Publication Thumbnail
Year Published: 2020

Forest management under megadrought: Urgent actions needed at finer-scale and higher intensity

Drought and warming increasingly are causing widespread tree die-offs and extreme wildfires. Forest managers are struggling to improve anticipatory forest management practices given more frequent, extensive, and severe wildfire and tree die-off events triggered by “hotter drought”—drought under warmer than historical conditions. Of even greater...

Field, Jason P.; Breshears, David D.; Bradford, John; Law, Darin J.; Feng, Xiaohui; Allen, Craig D.

Publication Thumbnail
Year Published: 2020

Assessing contributions of cold-water refuges to reproductive migration corridor conditions for adult salmon and steelhead trout in the Columbia River, USA

Diadromous fish populations face multiple challenges along their migratory routes. These challenges include suboptimal water quality, harvest, and barriers to longitudinal and lateral connectivity. Interactions among factors influencing migration success make it challenging to assess management options for improving migratory fish conditions along...

Snyder, Marcía N; Schumaker, Nathan H.; Dunham, Jason B.; Keefer, Matthew; Leinenbach, Peter; Brookes, Allen; Palmer, John; Wu, Jennifer; Keenan, Druscilla M; Ebersole, Joseph L.

Publication Thumbnail
Year Published: 2020

Western purple martin (Progne subis arboricola) occurrence on the Siuslaw National Forest, Summer 2019

The western subspecies of the purple martin (Progne subis arboricola) is currently listed as a “critically” sensitive species in four ecoregions of western Oregon: Coast Range, Klamath Mountains, West Cascades, and Willamette Valley (Oregon Department of Fish and Wildlife, 2019). Importantly distinct from the abundant and widespread eastern...

Hagar, Joan; Branch, Eric
Hagar, J.C., and Branch, E.C., 2020, Western purple martin (Progne subis arboricola) occurrence on the Siuslaw National Forest, summer 2019: U.S. Geological Survey Open-File Report 2020-1130, 25 p., https://doi.org/10.3133/ofr20201130.

Publication Thumbnail
Year Published: 2020

Comparing methods to estimate the proportion of turbine-induced bird and bat mortality in the search area under a road and pad search protocol

Estimating bird and bat mortality at wind facilities typically involves searching for carcasses on the ground near turbines. Some fraction of carcasses inevitably lie outside the search plots, and accurate mortality estimation requires accounting for those carcasses using models to extrapolate from searched to unsearched areas. Such models should...

Maurer, Joseph; Huso, Manuela; Dalthorp, Daniel; Madsen, Lisa; Fuentes, Claudio

Publication Thumbnail
Year Published: 2020

Evaluating a rapid field assessment system for anticoagulant rodenticide exposure of raptors

Anticoagulant rodenticides (ARs) are commonly used to control rodent pests. However, worldwide, their use is associated with secondary and tertiary poisoning of nontarget species, especially predatory and scavenging birds. No medical device can rapidly test for AR exposure of avian wildlife. Prothrombin time (PT) is a useful biomarker for AR...

Dickson, Ariana J; Belthoff, James R.; Mitchell, Kristen A; Smith, Brian W.; Wallace, Zachary P.; Stuber, Matthew J.; Lockhart, Michael J; Rattner, Barnett A.; Katzner, Todd E.

Publication Thumbnail
Year Published: 2020

Harvester ant seed removal in an invaded sagebrush ecosystem: Implications for restoration

A better understanding of seed movement in plant community dynamics is needed, especially in light of disturbance‐driven changes and investments into restoring degraded plant communities. A primary agent of change within the sagebrush‐steppe is wildfire and invasion by non‐native forbs and grasses, primarily cheatgrass (Bromus tectorum). Our...

Paolini, Kelsey E; Modlin, Matthew; Suazo, Alexis A; Pilliod, David; Arkle, Robert; Vierling, Kerri T.; Holbrook, Joseph D.

Publication Thumbnail
Year Published: 2020

Diurnal timing of nonmigratory movement by birds: The importance of foraging spatial scales

Timing of activity can reveal an organism's efforts to optimize foraging either by minimizing energy loss through passive movement or by maximizing energetic gain through foraging. Here, we assess whether signals of either of these strategies are detectable in the timing of activity of daily, local movements by birds. We compare the similarities...

Mallon, Julie M.; Tucker, Marlee A.; Beard, Annalea; Bierregaard Jr., Richard O; Bildstein, Keith L.; Böhning-Gaese, Katrin; Brzorad, John N.; Buechley, Evan R.; Bustamante, Javier; Carrapato, Carlos; Castillo‐Guerrero, José Alfredo; Clingham, Elizabeth; Desholm, Mark; DeSorbo, Christopher R.; Domenech, Robert; Douglas, Hayley; Duriez, Olivier; Enggist, Peter; Farwig, Nina; Fiedler, Wolfgang; Gagliardo, Anna; García‐Ripollés, Clara; Gil Gallús, José Antonio; Gilmour, Morgan E.; Harel, Roi; Harrison, Autumn-Lynn; Henry, Leeann; Katzner, Todd E.; Kays, Roland; Kleyheeg, Erik; Limiñana, Rubén; López-López, Pascual; Lucia, Giuseppe; Maccarone, Alan; Mallia, Egidio; Mellone, Ugo; Mojica, E.K.; Nathan, Ran; Newman, Scott H.; Oppel, Steffen; Orchan, Yotam; Prosser, Diann J.; Riley, Hannah; Rösner, Sascha; Schabo, Dana G.; Schulz, Holger; Shaffer, Scott A.; Shreading, Adam; Silva, João Paulo; Sim, Jolene; Skov, Henrik; Spiegel, Orr; Stuber, Matthew J.; Takekawa, John Y.; Urios, Vicente; Vidal‐Mateo, Javier; Warner, Kevin; Watts, Bryan D.; Weber, Nicola; Weber, Sam; Wikelski, Martin; Zydelis, Ramunas; Mueller, Thomas; Fagan, William F.