Elk Home Range - Scott Valley - 2021-2023 [ds3176]

The project lead for the collection of this data was Erin Zulliger. Elk (3 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 2021-2023. 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.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 3 elk, including 4 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.

Data e Risorse

Campo Valore
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
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datagov_dedupe_retained 20250724164837
identifier 8f6502c4-e3d3-42ac-8946-6df8e460e3f1
issued 2024-04-18T19:28:48.000Z
license http://www.opendefinition.org/licenses/cc-by
modified 2024-04-18T19:28:50.711Z
publisher California Department of Fish and Wildlife
resource-type Dataset
source_datajson_identifier true
source_hash 4ceb2e89efb98d40bb0fa5f41d248cbe64a8beb2bb0d82fb8a5d4b69a7f5b0a2
source_schema_version 1.1
theme {"Natural Resources"}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • auth_cdfw
  • brownian-bridge-movement-model
  • california-department-of-fish-and-wildlife
  • california-natural-resources-agency
  • caopendata
  • cdfw
  • cervus-canadensis
  • connectivity
  • ds3176_20240415_wm
  • elk
  • gps
  • home-range
  • migration-mapper
  • telemetry
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer BIOS_Admin
maintainer_email geodata@wildlife.ca.gov
metadata_created 2025-09-23T15:39:04.606731
metadata_modified 2025-09-23T15:39:04.606740
notes <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The project lead for the collection of this data was Erin Zulliger. Elk (3 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 2021-2023. 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.</SPAN></P><P><SPAN>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 3 elk, including 4 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.</SPAN></P></DIV></DIV></DIV>
num_resources 8
num_tags 22
title Elk Home Range - Scott Valley - 2021-2023 [ds3176]