Research and Publications
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Our key findings concerning changing fuels and forest structure following a MPB epidemic in south-central Oregon lodgepole pine forests include: 1-h fuels and litter changed little over time, surface fuel loads changed dramatically between the standing snag and the regeneration stages, lodgepole pine remained dominant, and canopy bulk density was low throughout the chronosequence. These factors point to the perpetuation of a lodgepole pine dominated system with a mixed-severity fire regime well into the future.
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This study quantified relationships between annual climate conditions and regeneration of ponderosa pine and Douglas-fir, two ecologically and economically important conifer species in low-elevation forests of western North America. We found that regeneration exhibited a threshold response to annual climate conditions and the forests we sampled crossed these climate thresholds in the past 20 years, resulting in fewer recruitment opportunities through time. In areas that have crossed climatic thresholds for regeneration, stand-replacing fires may result in abrupt ecosystem transitions to nonforest states.
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Ecologist Charles Post travels across Nevada to explore how overpopulated wild horses effect native wildlife. A Wildlife Society film by Charles Post, Phillip Baribeau, and Ben Masters.
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Bristlecone pine has weathered many climate changes. They’ve been getting punched in the face their entire species history and even, in some ways, thrive in the face of adversity. But whether they can make those adjustments in their range fast enough to keep up with climate change, that’s the question.
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Large-scale encroached conifer removal is an increasingly widespread practice that benefits rangeland productivity and restores habitat quality for sagegrouse and other sagebrush-dependent wildlife. Recent studies show that after encroached conifers are removed, sage-grouse occupancy, nest survival, and brood success are greatly improved. Studies also show that sagebrush songbirds recolonize rapidly following encroached conifer removal.
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Results indicate that postfire seeding has lasting effects on vegetation composition and structure, implying that seed mixes should be carefully formulated to promote long-term management objectives. Seed mixes containing large amounts of competitive introduced species may be especially effective for long-term cheatgrass suppression, but native-only mixes can also serve this purpose to a lesser degree while avoiding drawbacks of non-native species introductions.
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In this paper, we present a reflexive examination of how and why we, an academic and a practitioner, arrive at different evaluations of collaborative progress in natural resource management. We situate this examination in our long-standing involvement in designing, adaptively managing, and participating in the Uncompahgre Plateau collaborative forest restoration project in western Colorado, USA.
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This collection of essays—divided into three key categories: Risk, Culture, and Operations—daylights qualities and practices in the wildland fire service across a broad spectrum, from outdated and unwarranted to honorable and profound. We must acknowledge our current culture and its shortcomings while using its strengths to lead change.
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To revegetate disturbed desert lands, practitioners often reestablish fertile islands as a first step in restoring native plants and associated fauna on disturbed desert sites. This research brief discusses the pros and cons of this approach considering native and non-native species.
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In increasingly arid regions such as the western U.S., water managers are learning that careful management and restoration of watershed ecosystems, including thinning trees and conducting prescribed burns, are important tools in coping with a hotter, drier climate.