Adam R Noel

Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States

These data consist of environmental covariates, measured plot-level and tree characteristics for seven coniferous tree species across the southwestern United States. The objectives of the study were to assess how growth characteristics of conifer tree species vary across environmental gradients and across the different tree species. These data represent conifer growth under a variety of stand and site characteristics. These data were collected in the summer of 2019, from sites across Nevada, Arizona, New Mexico and Colorado, and collected by field crews directed by Matt Petrie (University of Nevada Las Vegas), Rob Hubbard (USDA Forest Service), Tom Kolb (Northern Arizona University) and John Bradford (U.S. Geological...

Categories: Data; Tags: Arizona, Botany, California, Climatology, Colorado, All tags... Ecology, Forestry, Geography, Geomorphology, Idaho, Information Sciences, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, Soil Sciences, South Dakota, USGS Science Data Catalog (SDC), USGS:645abf44d34ec179a8378de3, Utah, Washington, Wyoming, biogeography, biota, climate change, climatologyMeteorologyAtmosphere, conifer forests, conifer growth, conifer regeneration, conifer tree regeneration, coniferous tree, daily meteorological estimates, data release, dryland forests, ecological processes, ecosystem management, effects of climate change, environment, environmental conditions, environmental covariates, estimates, field inventory and monitoring, field-measured, forest ecosystems, forest management, geoscientificInformation, meteorology, plot sampling, ponderosa forests, predictor variable, recruitment, regeneration failure, simulations, site characteristics, soil moisture, soil resources, soil temperature, southwestern United States, stand characteristics, tree characteristics, tree growth, vegetation, vegetation cover, vegetation type, western United States, Fewer tags

Where can managers effectively resist climate-driven ecological transformation in pinyon–juniper woodlands of the US Southwest?

Pinyon–juniper (PJ) woodlands are an important component of dryland ecosystems across the US West and are potentially susceptible to ecological transformation. However, predicting woodland futures is complicated by species-specific strategies for persisting and reproducing under drought conditions, uncertainty in future climate, and limitations to inferring demographic rates from forest inventory data. Here, we leverage new demographic models to quantify how climate change is expected to alter population demographics in five PJ tree species in the US West and place our results in the context of a climate adaptation framework to resist, accept, or direct ecological transformation. Two of five study species, Pinus...

Categories: Publication; Types: Citation

Pinyon-juniper basal area, climate and demographics data from National Forest Inventory plots and projected under future density and climate conditions

These data were compiled to help understand how climate change may impact dryland pinyon-juniper ecosystems in coming decades, and how resource management might be able to minimize those impacts. Objective(s) of our study were to model the demographic rates of PJ woodlands to estimate the areas that may decline in the future vs. those that will be stable. We quantified populations growth rates across broad geographic areas, and identified the relative roles of recruitment and mortality in driving potential future changes in population viability in 5 tree species that are major components of these dry forests. We used this demographic model to project pinyon-juniper population stability under future climate conditions,...

Categories: Data; Tags: Arizona, Botany, California, Colorado, Ecology, All tags... Forestry, Geography, Idaho, Information Sciences, Juniperus monosperma, Juniperus osteosperma, Juniperus scopulorum, Montana, Nevada, New Mexico, North Dakota, Oregon, Pinus edulis, Pinus monophylla, Rocky Mountain juniper, South Dakota, Texas, USGS Science Data Catalog (SDC), United States Southwest, Utah, Utah juniper, biogeography, biota, climate change, climatologyMeteorologyAtmosphere, data release, droughts, dryland forests, ecosystem management, effects of climate change, field inventory and monitoring, forest ecosystems, forest inventory plot, forest management, mortality, oneseed juniper, pinyon-juniper forests, pinyon-juniper woodland, plot sampling, population and community ecology, population dynamics, population growth, recruitment, singleleaf pinyon, tree growth, tree mortality, tree recruitment, trees, twoneedle pinyon, vegetation, western United States, Fewer tags