A5083909656- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
- Coastal wetland ecosystem dynamics
- Hydrology and Watershed Management Studies
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Peatlands and Wetlands Ecology
- Avian ecology and behavior
- Planetary Science and Exploration
- Land Use and Ecosystem Services
- Rangeland and Wildlife Management
- Wildlife Ecology and Conservation
- Soil erosion and sediment transport
- Space Exploration and Technology
- Tree-ring climate responses
- Flood Risk Assessment and Management
- Atmospheric and Environmental Gas Dynamics
- Zeolite Catalysis and Synthesis
- Forest ecology and management
- Education Systems and Policy
- Seedling growth and survival studies
- Marine and coastal plant biology
- Hydrology and Drought Analysis
- Hydrology and Sediment Transport Processes
- Soil and Unsaturated Flow
The Nature Conservancy
2015-2023
Hudson Institute
2018
John Wiley & Sons (United States)
2018
University of Wisconsin–Madison
2015-2017
South Dakota State University
2012-2016
United States Geological Survey
2015-2016
Northern Prairie Wildlife Research Center
2014-2015
University of Central Florida
2006-2012
Illinois Department of Natural Resources
2005
Battelle
1989-1996
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...
Depressional wetlands are productive and unique ecosystems found around the world. Their value is due, in part, to their dynamic nature, which water levels fluctuate response climate, occasionally drying out. However, many have been altered by consolidation drainage, where multiple, smaller drained into fewer, larger, causing higher levels. We evaluated whether current (2003–2010) surface areas were greater than historical (1937–1969) of 141 randomly selected semipermanent permanent across...
Abstract The future of dry forests around the world is uncertain given predictions that rising temperatures and enhanced aridity will increase drought‐induced tree mortality. Using forest management ecological restoration to reduce density competition for water offers one few pathways managers can potentially minimize Competition during drought leads elevated mortality in dense stands, although influence on heat‐induced stress durations hot or conditions most impact remain unclear....
Abstract Grassland birds are declining faster than any other bird guild across North America. Shrinking ranges and population declines attributed to widespread habitat loss increasingly fragmented landscapes of agriculture land uses that misaligned with grassland conservation. Concurrent degradation, temperate grasslands have been disproportionally affected by climate change relative most terrestrial biomes. Distributions often correlate gradients in climate, but few researchers explored the...
Drought-induced tree mortality is predicted to increase in dry forests across the globe as future projections show hotter, drier climates. This could potentially result large-scale die-offs, changes species composition, and loss of forest ecosystem services, including carbon storage. While some studies have found that stands with greater basal areas (BA) higher drought mortality, many not evaluated extent which restored lower densities via restoration activities affect mortality. The...
Higher tree density, more fuels, and a warmer, drier climate have caused an increase in the frequency, size, severity of wildfires western U.S. forests. There is urgent need to restore forests across United States. To address this need, Forest Service began Four Restoration Initiative (4FRI) four national Arizona. The objective study was evaluate how restoration ~400,000 ha under 4FRI program projected change would influence carbon dynamics wildfire from 2010 2099. Specifically, we estimated...
Before European settlement, 23% of Illinois (3.2 million 14 ha) was covered by wetlands. It is estimated that 90% those wetlands were lost during conversion the landscape to agriculture and urban use. Champaign County one most extensively drained counties in Illinois, with 39–60% original county area have been drained. Current future efforts conserve restore would benefit from information on number distribution former We used GIS estimate spatial extent, density, pattern, sizes extant...
Abstract The escalating climate and wildfire crises have generated worldwide interest in using proactive forest management (e.g. thinning, prescribed fire, cultural burning) to mitigate the risk of wildfire-caused carbon loss forests. To estimate western United States (US) conifer forests, we used a generalizable framework evaluate interactions among hazard exposure vulnerability. By evaluating where high social adaptive capacity for overlaps with most vulnerable loss, identified opportunity...
Abstract Many waterbird species utilize a diversity of aquatic habitats; however, with increasing anthropogenic needs to manage water regimes there is global concern over impacts populations. The federally threatened piping plover (Charadrius melodus; hereafter plovers) shorebird that breeds in three habitat types the Prairie Pothole Region North Dakota, South and Canada: riverine sandbars; reservoir shorelines; prairie wetlands. Water surface areas these habitats fluctuate response wet–dry...
Geographic Information Systems (GIS) software has become an important computational tool in several fields. GIS ranges from command line processors, with maximal control over internal model decisions, to GUI versions point-and-click access pre-set modules. Based on the output this software, some users make decisions plan and manage landscapes (e.g., cities, parks, forests) real consequences for managed ecosystems. We discuss a programming decision algorithm originally used discern flow...
With climate change becoming more of concern, many ecologists are including variables in their system and statistical models. The Standardized Precipitation Evapotranspiration Index (SPEI) is a drought index that has potential advantages modeling ecological response variables, flexible computation the over different timescales. However, little development been made terms choice timescale for SPEI. We developed Bayesian approach estimating SPEI demonstrated its use wetland hydrologic dynamics...
Abstract Increasing aridity is a challenge for forest managers and reducing stand density to minimize competition recognized strategy mitigate drought impacts on growth. In many dry forests, the most widespread common management programs currently being implemented focus restoration of historical structures, primarily fire risk enhance watershed function. The implications these projects vulnerability are not well understood. Here, we examined how planned treatments in Four Forests...
Urbanization is associated with the eventual reproductive failure of cypress and in absence management practice changes, recruitment may cease many additional wetlands. If past urbanization rates continue, 80–90% populations isolated wetlands path urban sprawl could permanently 100 years. Reducing introducing prescribed fire managed‐forest domes mitigate this effect conserve reproduction long‐lived, dominant tree species diversity they typify.
The interest in zeolites is due to their extensive commercial uses as molecular sieves highly selective catalysts, adsorbents, ion exchangers, and separators. These properties enabled the development of a large number chemical petrochemical processes. Zeolites are crystalline aluminosilicates. Independent control product composition, morphology defect concentrations during crystallization from reactive aluminosilicate gels difficult. Modifications synthesis conditions aimed at modifying...