A5022139946- Fire effects on ecosystems
- Rangeland and Wildlife Management
- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
- Plant Water Relations and Carbon Dynamics
- Seedling growth and survival studies
- Forest Insect Ecology and Management
- Tree-ring climate responses
- Forest Management and Policy
- Forest Ecology and Biodiversity Studies
- Plant and fungal interactions
- Entomological Studies and Ecology
- Atmospheric and Environmental Gas Dynamics
- Plant and Fungal Interactions Research
- Remote Sensing and LiDAR Applications
- Botany, Ecology, and Taxonomy Studies
- Species Distribution and Climate Change
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Plant and animal studies
- Fire dynamics and safety research
- Landslides and related hazards
- Fire Detection and Safety Systems
- Urban Green Space and Health
- Plant Parasitism and Resistance
Rocky Mountain Research Station
2015-2024
Rocky Mountain Research (United States)
2019-2023
US Forest Service
2008-2023
Northern Arizona University
2022
The Nature Conservancy
2022
Western Colorado University
2022
Science Exchange (United States)
2022
University of Colorado Boulder
2022
United States Department of Agriculture
2014
Colorado State University
2006
Changing disturbance regimes and climate can overcome forest ecosystem resilience. Following high-severity fire, recovery may be compromised by lack of tree seed sources, warmer drier postfire climate, or short-interval reburning. A potential outcome the loss resilience is conversion prefire to a different type nonforest vegetation. Conversion implies major, extensive, enduring changes in dominant species, life forms, functions, with impacts on services. In present article, we synthesize...
Increasing fire severity and warmer, drier postfire conditions are making forests in the western United States (West) vulnerable to ecological transformation. Yet, relative importance of interactions between these drivers forest change remain unresolved, particularly over upcoming decades. Here, we assess how interactive impacts changing climate wildfire activity influenced conifer regeneration after 334 wildfires, using a dataset from 10,230 field plots. Our findings highlight declining...
Altered fuels and climate change are transforming fire regimes in many of Earth's biomes. Postfire reassembly vegetation--paramount to C storage biodiversity conservation--frequently remains unpredictable complicated by rapid global change. Using a unique data set pre long-term postfire data, combined with from nearby unburned areas, we examined 10 years understory vegetation assembly after the 2002 Hayman Fire. This was largest wildfire recorded history Colorado, USA. Resistance (initial...
Abstract Aim Climate warming is increasing fire activity in many of Earth’s forested ecosystems. Because a catalyst for change, investigation post‐fire vegetation response critical to understanding the potential future conversions from forest non‐forest types. We characterized influences climate and terrain on tree regeneration assessed how these biophysical factors might shape vulnerability wildfire‐driven conversion. Location Montane forests, Rocky Mountains, USA. Time period 1981–2099....
Abstract Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespread management practice conducted predominantly to recover economic capital, produces further disturbance and impacts biodiversity worldwide. Hence, naturally disturbed forests among the most threatened habitats in world, with consequences for their associated biodiversity. However, there no evidence-based benchmarks proportion of area be excluded from logging conserve We apply mixed...
Abstract Background Forest and nonforest ecosystems of the western United States are experiencing major transformations in response to land-use change, climate warming, their interactive effects with wildland fire. Some transitioning persistent alternative types, hereafter called “vegetation type conversion” (VTC). VTC is one most pressing management issues southwestern US, yet current strategies intervene address change often use trial-and-error approaches devised after fact. To better...
Abstract. The Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen (BEACHON) project seeks to understand the feedbacks and inter-relationships between hydrology, biogenic emissions, carbon assimilation, aerosol properties, clouds associated within water-limited ecosystems. Manitou Experimental Forest Observatory (MEFO) was established in 2008 by National Center for Atmospheric Research address many BEACHON research objectives, it now provides a...
Abstract Aims Spruce beetles ( Dendroctonus rufipennis ) are causing widespread spruce Picea spp.) mortality in subalpine forests western North America. changing forest structure and composition by killing a dominant overstory species, but we know little about how the understory community responds to increase resource availability brought mortality, what mechanisms drive its response, or response affects other properties processes. Location Glacier Lakes Ecosystem Experiments Site, Medicine...
Management of many dry conifer forests in western North America is focused on promoting resilience to future wildfires, climate change, and land use impacts through restoration historical patterns forest structure disturbance processes. Historical structural data provide models for past resilient conditions that inform the design silvicultural treatments help assess success at achieving desired conditions. We used dendrochronological reconstruct nonspatial spatial 1860 fourteen 0.5 ha plots...
Abstract Background Planting tree seedlings may help promote forest recovery after extensive high-severity wildfire. We evaluated the influence of growing environment characteristics on performance planted in 2016 Cold Springs Fire, Colorado, USA. In 2021, four seasons planting, we measured survival, height, and 2021 height growth for 300 ponderosa pine, limber Douglas-fir permanently marked along “stake rows.” For each seedling, also recorded one site-level characteristic, aspect, two...
Abstract Amplified by warming temperatures and drought, recent outbreaks of native bark beetles (Curculionidae: Scolytinae) have caused extensive tree mortality throughout Europe North America. Despite their ubiquitous nature important effects on ecosystems, forest recovery following such disturbances is poorly understood, particularly across regions with varying abiotic conditions outbreak effects. To better understand post‐outbreak a topographically complex region, we synthesized data from...
Shifting fire regimes alter forest structure assembly in ponderosa pine forests and may produce structural heterogeneity following stand-replacing due, part, to fine-scale variability growing environments. We mapped tree regeneration eighteen plots 11 15 years after Colorado South Dakota, USA. used point pattern analyses examine the spatial of locations heights as well influence interactions topography on patterns. In these sparse, early-seral forests, we found that all species were...