Forest and Rangeland Ecosystem Science Center

Publications

Filter Total Items: 1,755
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Year Published: 2020

Genetic identification of African pangolins and their origin in illegal trade

To track the illegal pangolin trade from Africa to Asia, we analyzed 1800 DNA samples from 30 seizures of African pangolin scales in Hong Kong during the period 2012–2016. We concluded that all four African pangolin species were present in trade, and that the white-bellied pangolin (Phataginus tricuspis) appeared most frequently (88.5%) in our...

Zhang, Huarong; Ades, Gary; Miller, Mark P.; Yang, Feng; Lai, Kwok-wai; Fischer, Gunter A.

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Year Published: 2020

Projecting spatiotemporally explicit effects of climate change on stream temperature: A model comparison and implications for coldwater fishes

Conservation planners and resource managers seek information about how the availability and locations of cold-water habitats will change in the future and how these predictions vary among models. We used a physical process-based model to demonstrate the implications of climate change for streamflow and water temperature in two watersheds with...

Lee, Se Yeun; Fullerton, Aimee H.; Sun, Ning; Torgersen, Christian E.

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Year Published: 2020

Biological soil crusts in ecological restoration: Emerging research and perspectives

Drylands encompass over 40% of terrestrial ecosystems and face significant anthropogenic degradation causing a loss of ecosystem integrity, services, and deterioration of social‐ecological systems. To combat this degradation, some dryland restoration efforts have focused on the use of biological soil crusts (biocrusts): complex communities of...

Antoninka, Anita; Faist, Akasha M.; Rodriguez-Caballero, Emilio; Young, Kristina E; Chaudhary, V Bala; Condon, Lea A.; Pyke, David A.

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Year Published: 2020

Longitudinal, lateral, vertical, and temporal thermal heterogeneity in a large impounded river: Implications for cold-water refuges

Dam operations can affect mixing of the water column, thereby influencing thermal heterogeneity spatially and temporally. This occurs by restricting or eliminating connectivity in longitudinal, lateral, vertical, and temporal dimensions. We examined thermal heterogeneity across space and time and identified potential cold-water refuges for...

Mejia, Francine H.; Torgersen, Christian E.; Berntsen, Eric K; Maroney, Joseph R; Connor, J M; Fullerton, Aimee H.; Ebersole, Joseph L.; Lorang, Mark L

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Year Published: 2020

Post-fire management-scale trials of bacterial soil amendment MB906 show inconsistent control of invasive annual grasses

Rangeland managers need tools to control invasive annual grasses, particularly following wildfire. We assessed responses of native and invasive/exotic grasses to the MB906 soil amendment containing live cultures of a purportedly weed-suppressive strain of the bacterium Pseudomonas fluorescens (“WSB”). MB906 was applied alone and in...

Lazarus, Brynne E.; Germino, Matthew; Brabec, Martha; Peterson, Logan; Walker, Ryan N; Moser, Ann

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Year Published: 2020

Some approaches to accounting for incidental carcass discoveries in non-monitored years using the Evidence of Absence model

Executive SummaryWe evaluate three approaches to accounting for incidental carcasses when estimating an upper bound on total mortality (𝑀) as 𝑀∗ using the Evidence of Absence model (EoA; Dalthorp and others, 2017) to assess compliance with an Incidental Take Permit (ITP) (Dalthorp & Huso, 2015) under a monitoring protocol that includes formal...

Dalthorp, Daniel; Rabie, Paul; Huso, Manuela; Tredennick, Andrew
Dalthorp, Daniel, Rabie, Paul, Huso, Manuela, and Tredennick, Andrew, 2020, Some approaches to accounting for incidental carcass discoveries in non-monitored years using the Evidence of Absence model: U.S. Geological Survey Open-File Report 2020-1027, 24 p., https://doi.org/10.3133/ofr20201027.

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Year Published: 2020

Magnitude and direction of stream–forest community interactions change with timescale

Networks of direct and indirect biotic interactions underpin the complex dynamics and stability of ecological systems, yet experimental and theoretical studies often yield conflicting evidence regarding the direction (positive or negative) or magnitude of these interactions. We revisited pioneering data sets collected at the deciduous forested...

Marcarelli, Amy M; Baxter, Colden V.; Benjamin, Joseph R.; Miyake, Yo; Murakami, Masashi; Fausch, K.D.; Nakano, Shigeru

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Year Published: 2020

Thermal heterogeneity, migration, and consequences for spawning potential of female bull trout in a river-reservoir system

The likelihood that fish will initiate spawning, spawn successfully, or skip spawning in a given year is conditioned in part on availability of energy reserves. We evaluated the consequences of spatial heterogeneity in thermal conditions on the energy accumulation and spawning potential of migratory bull trout (Salvelinus confluentus) in a...

Benjamin, Joseph R.; Vidergar, Dmitri T; Dunham, Jason B.

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Year Published: 2020

Understanding the golden eagle and bald eagle sensory worlds to enhance detection and response to wind turbines

The objective for this study was to measure the auditory and visual physiology of Golden and Bald Eagles in order to use eagle sensory capabilities to inform the design of potential deterrent stimuli that could be used to reduce eagle/turbine collisions with wind turbines. The rationale for this approach is that sensory systems of any organism...

Fernández-Juricic, Esteban; Lucas, Jeffrey; Katzner, Todd E.; Goller, B.; Baumhardt, P.; Lovko, N.
Fernández-Juricic, E., Lucas, J., and Katzner, T.E., 2020, Understanding the golden eagle and bald eagle sensory worlds to enhance detection and response to wind turbines: Purdue University Final Technical Report DOE-PU-07882, 181 pp.

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Year Published: 2020

Mercury bioaccumulation in freshwater fishes of the Chesapeake Bay watershed

Chemical contaminants are a threat to the Chesapeake Bay watershed, with mercury (Hg) among the most prevalent causes of impairment. Despite this, large-scale patterns of Hg concentrations, and the potential risks to fish, wildlife, and humans across the watershed, are poorly understood. We compiled fish Hg data from state monitoring programs and...

Willacker, James; Eagles-Smith, Collin; Blazer, Vicki S.

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Year Published: 2020

Trait integration and functional differentiation among co-existing plant species

PremiseDetermining which traits characterize strategies of coexisting species is important to developing trait‐based models of plant communities. First, global dimensions may not exist locally. Second, the degree to which traits and trait spectra constitute independent dimensions of functional variation at various scales continues to be refined....

Burton, Julia I.; Perakis, Steven; Brooks, J. Renee; Puettmann, Klaus J.