Fort Collins Science Center

Publications

FORT scientists have produced almost 1,000 peer reviewed publications that are registered in the USGS Publications Warehouse, along with many others prior to their work at the USGS or in conjunction with other government agencies. 

Filter Total Items: 1,640
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Year Published: 2020

Biogeography of fire regimes in western US conifer forests: A trait-based approach

Aim Functional traits are a critical link between species distributions and the ecosystem processes that structure those species’ niches. Concurrent increases in the availability of functional trait data and our ability to model species distributions present an opportunity to develop functional trait biogeography, i.e. the mapping of functional...

Stevens, Jens; Kling, Matthew M.; Schwilk, Dylan W.; Varner, J. Morgan; Kane, Jeffrey M.

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Year Published: 2020

Climate change: Flowering time may be shifting in surprising ways

Climate change is known to affect regional weather patterns and phenology; however, we lack under-standing of how climate drives phenological change across local spatial gradients. This spatial variation is critical for determining whether subpopulations and metacommunities are changing in unison or diverging in phenology. Divergent responses...

Prevey, Janet

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Year Published: 2020

Highly variable rates of survival to metamorphosis in wild boreal toads (Anaxyrus boreas boreas)

Life history theory suggests that long‐lived, pond‐breeding amphibians should have low and highly variable early life‐stage survival rates, but this theoretical expectation is often untested and the causes of variation are usually unknown. We evaluated the impact of hydroperiod, presence of a pathogen (Batrachochytrium dendrobatidis [Bd]),...

Crockett, John G.; Bailey, Larissa L.; Muths, Erin L.

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Year Published: 2020

U.S. Geological Survey science in support of the North American Bat Monitoring Program (NABat)

Bats make up one-fifth of all mammalian species worldwide and are found on every continent except Antarctica. They contribute to overall ecosystem health by suppressing pest insects and pollinating plants and spreading seeds. Eight North American bat species are listed as federally endangered or threatened, and more than one-half are of current...

Reichert, Brian E.; Soileau, Suzanna C.
Reichert, B.E., and Soileau, S.C., 2020, U.S. Geological Survey science in support of the North American Bat Monitoring Program (NABat): U.S. Geological Survey Fact Sheet 2020–3008, 2 p., https://doi.org/10.3133/fs20203008.

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Year Published: 2020

Population ecology and spatial synchrony in abundance within and among populations of valley oak (Quercus lobata) leaf gall wasps

What factors drive population variability through space and time? Here we assess patterns of abundance of seven species of gall wasps in three genera occurring on the leaves of valley oaks (Quercus lobata ) at 10 sites throughout this species' statewide range in California, from 2000 to 2006. Our primary goals were to understand the factors...

Barringer, Brian; Koenig, Walter D.; Pearse, Ian; Knops, Jean

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Year Published: 2020

Forest vegetation change and its impacts on soil water following 47 years of managed wildfire

Managed wildfire is an increasingly relevant management option to restore variability in vegetation structure within fire-suppressed montane forests in western North America. Managed wildfire often reduces tree cover and density, potentially leading to increases in soil moisture availability, water storage in soils and groundwater, and streamflow...

Stevens, Jens; Boisramé, Gabrielle F. S.; Rakhmatulina, Ekaterina; Thompson, Sally E.; Collins, Brandon M.; Stephens, Scott L.

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Year Published: 2020

Bridging the research-management gap: Landscape ecology in practice on public lands in the western United States

The field of landscape ecology has grown and matured in recent decades, but incorporating landscape science into land management decisions remains challenging. Many lands in the western United States are federally owned and managed for multiple uses, including recreation, conservation, and energy development. We argue for stronger integration of...

Carter, Sarah K.; Pilliod, David; Haby, Travis S.; Prentice, Karen L.; Aldridge, Cameron L.; Anderson, Patrick J.; Bowen, Zachary H.; Bradford, John; Cushman, Samuel A.; DeVivo, Joseph C.; Duniway, Michael C.; Hathaway, Ryan S.; Nelson, Lisa; Schultz, Courtney A.; Schuster, Rudy M.; Trammell, E. Jamie; Weltzin, Jake F.

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Year Published: 2020

The Modern Geological Survey; a model for research, innovation, synthjesis: A USGS perspective

Geological Surveys have long filled the role of providing Earth system science data and knowledge. These functions are increasingly complicated by accelerating environmental and societal change. Here we describe the USGS response to these evolving conditions. Underpinning the USGS approach is the recognition that many of the issues facing the U....

Kimball, Suzette; Goldhaber, Martin B.; Baron, Jill; Labson, Victor F.

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Year Published: 2020

Climate relationships with increasing wildfire in the southwestern US from 1984 to 2015

Over the last several decades in forest and woodland ecosystems of the southwestern United States, wildfire size and severity have increased, thereby increasing the vulnerability of these systems to type conversions, invasive species, and other disturbances. A combination of land use history and climate change is widely thought to be contributing...

Mueller, Stephanie; Thode, Andrea E.; Margolis, Ellis; Yocom, Larissa; Young, Jesse M.; Iniguez, Jose M.

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Year Published: 2020

Paired stated preference methods for valuing management of white pine blister rust: order effects and outcome uncertainty

The literature on nonmarket valuation includes many examples of stated and revealed preference comparisons. However, comparisons within stated preference methods are sparse. Specifically, the literature provides few examples of pairing both a discrete choice experiment (CE) and a contingent valuation (CV) question within a single survey. This...

Meldrum, James R.; Champ, Patricia A.; Bond, Craig A.; Schoettle, Anna

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Year Published: 2020

Fire history across forest types in the southern Beartooth Mountains, Wyoming

Fire is a critical ecosystem process that has played a key role in shaping forests throughout the Beartooth Mountains in northwestern Wyoming. The highly variable topography of the area provides ideal conditions to compare fire regimes across contiguous forest types, yet pyro-dendrochronological research in this area is limited. We reconstructed...

Brown, Sabrina R.; Baysinger, Ashley; Brown, Peter M.; Cheek, Justin L.; Diez, Jeffrey M.; Gentry, Christopher M.; Grant III, Thomas A.; St-Jacques, Jeannine-Marie; Jordan, David A.; Leef, Morgan L.; Rourke, Mary K.; Speer, James H.; Spradlin, Carrie E.; Stevens, Jens; Stone, Jeffery R.; Van Winkle, Brian; Zeibig-Kichas, Nickolas E.

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Year Published: 2020

Estimating detection probability for Burmese Pythons with few detections and zero recapture events

Detection has been a long-standing challenge to monitoring populations of cryptic herpetofauna, which often have detection probabilities that are closer to zero than one. Burmese Pythons (Python bivittatus =Python molurus bivittatus), a recent invader in the Greater Everglades Ecosystem of Florida, are cryptic snakes that have long periods of...

Nafus, Melia G.; Mazzotti, Frank J.; Reed, Robert