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Mortality factors for dead trees from a subset of plots from the Sierra Nevada Forest Dynamics Plot Network from 1998 to 2010 This dataset was used to summarize and analyze the mortality factors recorderd on dead trees in the Sierra Nevada Forest Dynamics Plot Network, which is managed by the Sequoia and Kings Canyon Field station of the U.S. Geological Survey's Western Ecological Research Center. Each row of the dataset represents an individual dead tree. These are dead trees that were recorded in the network from 1998 to 2010 for the subset of plots as described in the associated manuscript; These data support the following: Das, A.J., Stephenson, N.L., Davis, K.P. 2016. Why do trees die? Characterizing the drivers of background tree mortality. Ecology. 97(10): 2616-2627, https://doi.org/10.1002/ecy.1497 Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Sequoia-Kings Canyon National Park, Sierra Nevada, USGS Science Data Catalog (SDC), Yosemite National Park, bark beetles, All tags... tree mortality, tree mortality factors, tree pathogens, Fewer tags Sequoia and Yosemite National Parks Mortality and Fire Data (1990-2019) for Competition-Fire-Drought Interaction Analysis This dataset records mortality-- including involvement of bark beetles-- and burn severity information for trees in long term forest dynamics plots in Sequoia National Park and Yosemite National Park that experienced fire. These data support the following publication: Furniss, T.J., Das, A.J., van Mantgem, P.J., Stephenson, N.L. and Lutz, J.A., 2021. Crowding, climate, and the case for social distancing among trees. Ecological Applications, p.e2507, https://doi.org/10.1002/eap.2507 Categories: Data; Tags: California, Forestry, Sequoia National Park, Sierra Nevada, USGS Science Data Catalog (SDC), All tags... Yosemite National Park, bark beetle, biota, fires, forest ecosystems, insects, plot sampling, temperate forest, tree mortality, Fewer tags Seed Source, Not Drought, Determines Patterns of Seed Production in Sierra Nevada Conifers (ver. 2.0, January 2023) This release consists of data collected from 26 plots in two national parks over a 19-year period. The data consists of plot-level seed counts for three genera, number of seed traps, live tree basal area, plot area, and climate metrics from the gridmet gridded data set, the daymet gridded data set, the PRISM gridded data set, and two nearby COOP stations. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Holocene, Sequoia-Kings National Park, Terrestrial surface, USGS Science Data Catalog (SDC), All tags... Yosemite National Park, biota, coniferous trees, current, drought and seed production, forest ecosystems, long-term ecological monitoring, spring (season), summer, time series datasets, Fewer tags Tree mortality in blue oak woodlands in Sequoia National Park during extreme drought These data were collected to quantify oak mortality during the 2014-2017 drought. 30 tenth hectare drought plots were established throughout the blue oak woodland of Sequoia National Park. Information on species, size, and mortality were collected for all standing trees in each plot. In addition, two long-term 2.25 ha plots were established, in which the same data were collected. These data are associated with the following publication: Das, A.J., Ampersee, N.J., Pfaff, A.H., Stephenson, N.L., Swiecki, T.J., Bernhardt, E.A., Haggerty, P.K. and Nydick, K.R., 2020. Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California. Madroño, 66(4), pp.164-175. Categories: Data; Tags: Ecology, Sequoia National Park, USGS Science Data Catalog (SDC), biota, blue oak, All tags... droughts, tree mortality, vegetation, Fewer tags Tree mortality in Sequoia National Park from 2004 to 2007 and during severe drought in 2014 to 2017 These data describe tree mortality and the factors associated with tree mortality for a variety of plots in Sequoia National Park. Most of the data were collected between 2014 and 2017 (during an extremely severe drought), along with some comparison data from 2004 to 2007. These data support the following publication: Stephenson, N.L., Das, A.J., Ampersee, N.J., Bulaon, B.M., and Yee, J.L., In review. Which trees die during drought? The key role of insect host-tree selection, Journal of Ecology Categories: Data; Tags: California, Forestry, Sequoia National Park, Sierra Nevada, USGS Science Data Catalog (SDC), All tags... bark beetle, biota, droughts, forest dieback, forest disturbance, forests, insect outbreak, invertebrates, stress, temperate forest, tree mortality, Fewer tags Sequoia foliage dieback and tree-ring data from Sequoia National Park These datasets provide spatially-explicit estimates of the magnitude of giant sequoia foliage dieback along selected trail corridors in Sequoia and Kings Canyon national parks, California, from 2014 through 2017. They additionally provide giant sequoia tree-ring measurements, through the year 1989, for two locations in the Giant Forest grove, Sequoia National Park, California. These data support the following publications: Nathan L. Stephenson, Adrian J. Das, Nicholas J. Ampersee, Kathleen G. Cahill, Anthony C. Caprio, John E. Sanders, A. Park Williams, Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought, Forest Ecology and Management, Available online 7 November... Categories: Data; Tags: Sequoia tree, Sequoiadendron giganteum, Sierra Nevada, USGS Science Data Catalog (SDC), biota, All tags... environment, forest ecosystems, forest vulnerability, leaf senescence, tree rings, Fewer tags Data for Use in poscrptR Post-fire Conifer Regeneration Prediction Model These data support poscrptR (Wright et al. 2021). poscrptR is a shiny app that predicts the probability of post-fire conifer regeneration for fire data supplied by the user. The predictive model was fit using presence/absence data collected in 4.4m radius plots (60 square meters). Please refer to Stewart et al. (2020) for more details concerning field data collection, the model fitting process, and limitations. Learn more about shiny apps at https://shiny.rstudio.com. The app is designed to simplify the process of predicting post-fire conifer regeneration under different precipitation and seed production scenarios. The app requires the user to upload two input data sets: 1. a raster of Relativized differenced Normalized... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Botany, California, Forestry, Oregon, USGS Science Data Catalog (SDC), All tags... biota, elevation, environment, forest ecosystems, geoscientificInformation, geospatial datasets, gymnosperms, imageryBaseMapsEarthCover, topography, Fewer tags Forest Structure Data for Burned and Unburned Sites at Sequoia and Kings Canyon National Parks These data represent tree diameter, species, mortality status, and plot attributes from 164 plots in Sequoia and Kings Canyon national parks, California. Plots were matched with local records of recent fire history to determine burn status and year burned if applicable. These data support the following publication: van Mantgem, P.J., Caprio, A.C., Stephenson, N.L. and Das, A.J., 2021. Forest Resistance to Extended Drought Enhanced by Prescribed Fire in Low Elevation Forests of the Sierra Nevada. Forests, 12(9), p.1248. Categories: Data; Tags: California, Forestry, Tulare, USGS Science Data Catalog (SDC), Upper Kaweah, All tags... biota, controlled fires, droughts, ecology, environment, forest ecosystems, Fewer tags Seed and Associated Tree Data from Long Term Research Plots in Sequoia and Yosemite National Parks This dataset was used as part of a continent-wide analysis of tree fecundity and its association with climate and tree size. This dataset consists of: plotinfo.csv, which contains basic attribute information for the field plots where the data were collected; seeddata.csv, which contains the data for seeds collected (how many, what type, etc.); trapxycoord.csv, which contains location and identification information for the seed traps used to collect the seeds; treexycoord.csv, which contains location and attribute information for the standing trees in the plot where the seeds were collected; and treedata.csv, which contains data on the size and species of standing trees in the plot where the seeds were collected. Categories: Data; Tags: Botany, California, Forestry, Sequoia National Park, Sierra Nevada, All tags... USGS Science Data Catalog (SDC), Yosemite National Park, biota, forest ecosystems, mixed conifer forest, old growth, seeds, temperate forest, vegetation, Fewer tags Seedling and tree data from Sequoia National Park and Yosemite National Park These tables include data from 25 long-term forest plots located in either Sequoia or Yosemite national park. Trees in these plots (established between 1982 and 2001) are censused annually for mortality and measured for diameter every 4 to 6 years. Plots were mostly 1 hectare (ha) in size (range 0.9 – 2.5 ha) and contained at least two 25 by 25 meter seedling sub-plots to monitor natural seedling recruitment. The largest plot, at 2.5 ha, included four such seedling sub-plots. Each sub-plot was divided into 5 by 5 meter quadrats. In almost all the plots these seedling sub-plots were established in 1999, but four plots (those with names starting with FF) were added to the study in 2002 and seedling data was only available... Categories: Data; Tags: Botany, Forestry, Sequoia National Park, USGS Science Data Catalog (SDC), Yosemite National Park, All tags... biota, field inventory and monitoring, forest demography, forest ecoystems, seedling recruitment, Fewer tags Post-fire conifer regeneration observations for National Forest land in California (2009 - 2017) This data consists of presence/absence observations for post-fire conifer regeneration. The data also includes estimates of plot-level topography (slope, aspect), relativized differenced normalized burn ratio (RdNBR), post-fire climate, live basal area, and seed rain. These data support the following publication: Stewart, J.A.E., van Mantgem, P.J, Young, D.J.N., Shive, K.L., Preisler, H.K., Das, A.J., Stephenson, N.L., Keeley, J.E., Safford, H.D., Wright, M.C., Welch, K.R., Thorne, J.H. 2020. Influence of variable postfire climate and seed production on postfire conifer regeneration. Ecological Applications. https://doi.org/10.1002/eap.2280 Categories: Data; Tags: Eldorado National Forest, Forestry, Klamath National Forest, Lassen National Forest, National Forest land in California, All tags... Plumas National Forest, San Bernardino National Forest, Shasta National Forest, Stanislaus National Forest, Tahoe National Forest, Trinity National Forest, USGS Science Data Catalog (SDC), biota, coniferous trees, fire damage, forest ecosystems, post-fire conifer regeneration, precipitation (atmospheric), terrestrial surface, Fewer tags