Description: These data represent near-shore fish habitat around Lake Tahoe CA/NV. Fish habitats were identified through a combination of IKONOS image classification results and field observations of fish-substrate relationships. The spatial extent of these data are constrained from the lake edge to a depth of <30m as defined by the USGS SHOALS dataset. Image classification was completed by Geovine Consulting under contract with the Tahoe Regional Planning Agency. Complete details of the image classification and data development process can be found in Metz and Herold 2004.
Service Item Id: 181b9895700f4aacafaa866c9a0c3654
Copyright Text: These data were developed by Josh Metz and Martin Herold of Geovine Consulting under contract for the Tahoe Regional Planning Agency
Description: Surveys conducted for nesting bald eagle are done throughout the summer by NDOW and CA State Parks, with some help by TRPA. This layer shows all nests that were active during the 2017 season. Both active and inactive bald eagle nests are protected under TRPA regulations. Only active nests that produce at least 1 fledgling are counted by TRPA as part of its' Threshold Standard for nesting bald eagles.
Description: Monthly boat and walk-in osprey nesting surveys are conducted monthly throughout the summer by the TRPA, LTBMU, NDOW, and CA State Parks. These layers show all nests that were active* and inactive during the 2017 season. Both active and inactive osprey nests are protected under TRPA regulations. Only active nests are counted by TRPA as part of its' Threshold Standard for nesting osprey.Nest_Id: Please refer to the map located in F:\Research and Analysis\Wildlife\Data\Osprey\osprey nest area codes_legend.pdfNest_Status: A=Active; NA=No Activity ObservedNest_Status_Category: Active (P=osprey perched at or near nest structure; NB= osprey observed building an incomplete nest; I=osprey incubating; B=osprey brooding; PD=prey delivery); No Activity Observed (NG = nest gone - either blown out of tree or tree fallen over; NI = nest initiated - no osprey observed but new nest established or old nest built up; ND = nest dilapidated - no osprey observed; NO = nest complete - no osprey observed; NS = nest occupied by other species)
Service Item Id: 181b9895700f4aacafaa866c9a0c3654
Copyright Text: Tahoe Regional Planning Agency, Lake Tahoe Basin Management Unit, California State Parks, Nevada Department of Wildlife
Description: Monthly nesting surveys are conducted throughout the summer by the TRPA and LTBMU. This layer shows all nests that were active* during the 2017 season.
Copyright Text: Tahoe Regional Planning Agency and Lake Tahoe Basin Management Unit 2007-2017. Sean Tevlin, TRPA. Shay Zanetti, LTBMU. Mark Enders, NDOW. Whitney Brennan, CTC.
Description: This is a shapefile showing occupied and emphasis habitat for willow flycatcher in the LTBMU. The emphasis habitat was derived by finding the areas where there was deciduous riparian veg adjacent to wet meadows larger than 14.9 acres. I used the LTBMU Riparian Vegetation layer for both of these because this layer is more accurate than CWHR. I also added the areas determined to be good habitat from the wifl hab assessment conducted in 2015. These areas were ground truthed to be good habitat, but most of them have not been surveyed. I further clipped all of these areas to within 5 miles of known detections and then clipped out non-FS lands. Even though this layer does not strictly adhere to the regional definition of emphasis habitat, I feel that it is more accurate, and therefore meets the intent.
Service Item Id: 181b9895700f4aacafaa866c9a0c3654
Copyright Text: United States Forest Service, Lake Tahoe Basin Management Unit, Shay Zanetti.
Name: Sierra Nevada Yellow-legged Frog Suitable Habitat
Display Field: UTILIZATION
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Suitable habitat for Sierra Nevada Yellow-legged Frog on the Lake Tahoe Basin Management Unit. Habitat is classified as "Utilized", "Utilized Potential", and "Utilization Unknown".
Copyright Text: Lake Tahoe Basin Management Unit, Pacific Southwest Region, USDA Forest Service.
Original layer constructed by LTBMU GIS department, from data provided by Regional Office, May 2014.
Updated 6/9/2016 to include Jabu Lake, Lake Lucille, and Tamarack Lake as "Utilized", based on input from Sarah Muskoph and Shay Zanetti (LTBMU Ecosystem Conservation).
Description: Northern goshawk Protected Activity Centers (PACs) delineated for the Lake Tahoe Basin Management Unit as of July 22, 2009. In accordance with the 2004 (or 2001) Sierra Nevada Forest Plan Amendment
Service Item Id: 181b9895700f4aacafaa866c9a0c3654
Copyright Text: United States Forest Service, Lake Tahoe Basin Management Unit.
Description: California spotted owl Protected Activity Centers (PACs) delineated for the Lake Tahoe Basin Management Unit as of July 22, 2008, mapped in accordance with the 2004 (or 2001) Sierra Neveda Forest Plan Amendment.
Copyright Text: The permanent and seasonal staff of the USFS Lake Tahoe Basin Management Unit.
Description: The purpose of this feature class is to show the relative location of all known bat roosts in the Lake Tahoe Basin. This inlcudes data through the 2017 field season.
Service Item Id: 181b9895700f4aacafaa866c9a0c3654
Copyright Text: United States Forest Service, Lake Tahoe Basin Management Unit, Shay Zanetti.