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Keyword: diversity

Individual variation and ecotypic niches in simulations of the impact of climatic volatility

Publications Posted on: October 02, 2019
Expectations of the impacts of climatic variation on species can depend on whether and how intraspecific variability is incorporated in models. Coefficients of variation from tree-ring records of Pinus albicaulis through time and across space were used to parameterize volatility and individuality, respectively.

The hidden potential within soil seed banks

Science Spotlights Posted on: July 31, 2019
Wildfire and other disturbances to plant communities are becoming larger and more frequent across arid lands of the western U.S. Degradation caused by these disturbances affects the ability of these plant communities to deliver important food and shelter to wildlife. Understanding how to predict the presence of native seeds within the soil seed bank, and where there are abundant seeds of invasive species, will help land managers determine the regeneration potential within the seed bank and inform restoration planning to reestablish biodiversity and ecosystem function in disturbed areas. Wildfire and other disturbances to plant communities are becoming larger and more frequent across arid lands of the western U.S. Degradation caused by these disturbances affects the ability of these plant communities to deliver important food and shelter to wildlife. Understanding how to predict the presence of native seeds within the soil seed bank, and where there are abundant seeds of invasive species, will help land managers determine the regeneration potential within the seed bank and inform restoration planning to reestablish biodiversity and ecosystem function in disturbed areas.

A national approach to leverage the benefits of tree planting on public lands

Publications Posted on: March 27, 2019
The number of global initiatives for forest restoration, and the scope of these initiatives, continues to increase. An important tool for meeting objectives of these global initiatives is reforestation, achieved by natural processes or by tree planting. Worldwide, organizations are challenged to most efficiently and effectively direct resources to the most critical reforestation needs.

#MeToo for the wildfire community

Publications Posted on: October 04, 2018
It is hard to miss the #MeToo movement these days. The international movement against sexual harassment and assault is everywhere in conventional and social media as well as water cooler and dinner table conversation. Important in its own right, #MeToo also has been a touchstone for broader conversations about inclusivity, diversity, equity, power dynamics and the challenges of who gets to represent whom in our culture.

The fluctuating resource hypothesis explains invasibility, but not exotic advantage following disturbance

Publications Posted on: September 26, 2018
Invasibility is a key indicator of community susceptibility to changes in structure and function. The fluctuating resource hypothesis (FRH) postulates that invasibility is an emergent community property, a manifestation of multiple processes that cannot be reliably predicted by individual community attributes like diversity or productivity.

Using natural disturbance and portfolio concepts to guide aquatic-riparian ecosystem management

Publications Posted on: September 10, 2018
The U.S. Forest Service and other federal land managers are responsible for maintaining the productivity of aquatic–riparian ecosystems, the associated native biota, and the ecosystem services they provide. These public lands are important sources of water, recreation opportunities, and habitat for a suite of animals and plants, including many that are protected under the Endangered Species Act.

Shrub cover and fire history predict seed bank composition in Great Basin shrublands

Publications Posted on: August 17, 2018
Dormant seeds in the soil are an important contribution to the regenerative potential of an area. Understanding factors that affect seed bank dynamics in arid regions provides insight into how communities respond to disturbance and environmental change.

Recreating in color: Promoting ethnic diversity in public lands

Pages Posted on: June 04, 2018
Recent studies of the Forest Service’s National Visitor Use Monitoring data show a wide disparity in racial and ethnic use of national forests. Researchers at the Rocky Mountain Research Station in Fort Collins, Colorado, are studying these numbers systematically—the first time a nationwide study has been done with these data. They hope that their research will help National Forest System staff to encourage different racial and ethnic groups to connect with public natural lands. By doing so, national forest managers will be transforming management practices and priorities to encourage wider use of natural lands by different racial and ethnic groups.

Winter bait stations as a multispecies survey tool

Publications Posted on: August 08, 2017
Winter bait stations are becoming a commonly used technique for multispecies inventory and monitoring but a technical evaluation of their effectiveness is lacking. Bait stations have three components: carcass attractant, remote camera, and hair snare. Our 22,975 km2 mountainous study area was stratified with a 5 × 5 km sampling grid centered on northern Idaho and including portions of Washington, Montana, and British Columbia.

Native species richness buffers invader impact in undisturbed but not disturbed grassland assemblages

Publications Posted on: November 18, 2016
Many systems are prone to both exotic plant invasion and frequent natural disturbances. Native species richness can buffer the effects of invasion or disturbance when imposed in isolation, but it is largely unknown whether richness provides substantial resistance against invader impact in the face of disturbance.

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