Table · dataset · 2025
Elk Home Range - South Warners - 2018-2023 [ds3171]
Listed in California Open Data
The project lead for the collection of this data was Erin Zulliger.
Description
Elk (5 adult females) were captured and equipped with GPS collars (Litetrack/Pinpoint Iridium collars, Lotek Wireless Inc., Newmarket, Ontario, Canada or Vectronic Aerospace) transmitting data from 2018-2023. The Scott Valley herd does not migrate between traditional summer and winter seasonal ranges.
Therefore, annual home ranges were modeled using year-round data to demarcate high use areas in lieu of modeling the specific winter ranges commonly seen in other ungulate analyses in California. GPS locations were fixed at 1-6 hour intervals in the dataset. To improve the quality of the data set, the GPS data locations fixed in 2D space and visually assessed as a bad fix by the analyst were removed.
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The methodology used for this migration analysis allowed for the mapping of the herd's annual range. Brownian bridge movement models (BBMMs; Sawyer et al. 2009) were constructed with GPS collar data from 5 elk, including 20 annual home range sequences, location, date, time, and average location error as inputs in Migration Mapper. BBMMs were produced at a spatial resolution of 50 m using a sequential fix interval of less than 27 hours.
Home range is visualized as the 50th percentile contour (high use) and the 99th percentile contour of the year-round utilization distribution. Annual home range designations for this herd may expand with a larger sample.
Links
Get the data
- Publisher page data-cdfw.opendata.arcgis.com/datasets/CDFW::elk-home-range-south-warners-2018-2023-ds3171 ↗
documentation · download · from data ca gov
- ArcGIS GeoService services2.arcgis.com/Uq9r85Potqm3MfRV/arcgis/rest/services/biosds3171_fpu/FeatureSe… ↗
download · from data ca gov
- CSV data-cdfw.opendata.arcgis.com/api/download/v1/items/51fef44b243448ba9e43462422874d3c/csv?lay… ↗
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- Shapefile data-cdfw.opendata.arcgis.com/api/download/v1/items/51fef44b243448ba9e43462422874d3c/shapefi… ↗
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- GeoJSON data-cdfw.opendata.arcgis.com/api/download/v1/items/51fef44b243448ba9e43462422874d3c/geojson… ↗
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- KML data-cdfw.opendata.arcgis.com/api/download/v1/items/51fef44b243448ba9e43462422874d3c/kml?lay… ↗
download · from data ca gov
- wildlife.ca.gov /Data/BIOS ↗
Elk Home Range - South Warners - 2018-2023 [ds3171]
download · from data ca gov
- filelib.wildlife.ca.gov /Public/BDB/GIS/BIOS/Public_Datasets/3100_3199/ds3171.zip ↗
Elk Home Range - South Warners - 2018-2023 [ds3171]
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/elk-home-range-south-warners-2018-2023-ds3171 ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=59f1e852-f8f4-4c79-9227-a585d631d… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources
- From keywords
- Social Science
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | 59f1e852-f8f4-4c79-9227-a585d631dbd0 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:natural-resources | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |