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Density estimates of four mammal species in the upper subalpine and alpine zones of the Sierra Nevada range, 2008 - 2012. The estimates were derived from variable distance data collected 3-4 per year along each of 21 transects (10 km in length). The transects were randomly selected from a pool of 53 potential routes. Nine transects were sampled in 2008, 12 were sampled in 2009, 19 were sampled in 2010, 21 were sampled in 2011, and 17 were sampled in 2012. All counts were done in July and August each year. Replicate samples within a given year were done within 2-8 days of each other. All counts were done by single observers. The spreadsheet has six worksheets, including three with density estimates for each species...
Density estimates of four mammal species in the upper subalpine and alpine zones of the Sierra Nevada range, 2008 - 2012. The estimates were derived from variable distance data collected 3-4 times per year at point count stations randomly located along line transects. There were 21 transects (10 km in length) that had been randomly selected from a pool of 53 potential routes, with 10 point count stations along each transect (minimum of 200 m spacing between stations). 45 stations were sampled in 2008 (5 stations on each of 9 transects), 60 stations were sampled in 2009 (5 stations on each of 12 transects),190 stations were sampled in 2010 (10 stations on each of 19 transects), 210 stations were sampled in 2011 (10...
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This data release presents point data associated with the geologic and geophysical maps of the Sierra Nevada Digital Earth Science Atlas led by the California Geological Survey and U.S. Geological Survey. Data include principal fact information for new gravity measurements collected by the U.S. Geological Survey from 2012 to 2023 and for existing gravity measurements compiled from 21 sources. Nearly 29,000 gravity measurements were processed to complete Bouguer and isostatic gravity anomalies to provide information on crustal structure, such as depth extent of plutons and arc terranes, and geometry of Cenozoic basins developed along the margins of the Sierra Nevada. Density and magnetic property measurements were...
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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


    map background search result map search result map Post-fire conifer regeneration observations for National Forest land in California (2009 - 2017) Gravity, density, and magnetic property measurements of the Sierra Nevada, California and Nevada Gravity, density, and magnetic property measurements of the Sierra Nevada, California and Nevada Post-fire conifer regeneration observations for National Forest land in California (2009 - 2017)