Elk Home Range - North Warners - 2019-2021 [ds3175]
The project lead for the collection of this data was Erin Zulliger. Elk (7 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 2019-2021. The North Warners 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 1-13 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 5 elk, including 10 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.
Complete Metadata
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| description | <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The project lead for the collection of this data was Erin Zulliger. Elk (7 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 2019-2021. The North Warners 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 1-13 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 5 elk, including 10 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> |
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|
| identifier | 35d828d0-e0b6-4b0b-8074-f50e33cf99f2 |
| issued | 2024-04-18T19:22:32.000Z |
| keyword |
[
"Auth_CDFW",
"Brownian bridge movement model",
"CAOpenData",
"CDFW",
"California Department of Fish And Wildlife",
"California Natural Resources Agency",
"Cervus canadensis",
"DS3175_20240415_wm",
"GPS",
"california department of fish and wildlife",
"connectivity",
"elk",
"home range",
"migration mapper",
"telemetry"
]
|
| license | http://www.opendefinition.org/licenses/cc-by |
| modified | 2024-04-18T19:22:40.990Z |
| publisher |
{
"name": "California Department of Fish and Wildlife",
"@type": "org:Organization"
}
|
| theme |
[
"Natural Resources"
]
|
| title | Elk Home Range - North Warners - 2019-2021 [ds3175] |
