BLM REA CYR 2013 Spring movements of the Western Arctic Herd during 2009

Metadata Updated: November 12, 2020

Caribou typically undergo seasonal migrations between summer calving grounds, mosquito-relief areas and winter foraging sites, with migration distances varying amongst herds. In the CYR study area, the larger, arctic herds, undergo seasonal migrations of distances up to 640 km, with annual movements of some caribou totaling more than 5000 km; while the smaller, more regional herds farther south, tend to undergo much shorter seasonal movements. Wider ranging herds include the Western Arctic, Central Arctic and Porcupine herds. The more localized herds include the Fortymile, Galena, Hodzana Hills, Macomb, Ray Mountains, White Mountains and Wolf Mountain herds. The Western Arctic herd has the largest range and most extensive migrations compared to other herds in the CYR study area. During spring, reproductive females travel north to the calving grounds in the Utukok hills, outside of the CYR study area. Bulls and non-pregnant females migrate a little later and move toward the Wulik Peaks and Lisburne Hills. Post-calving, reproductive females and their calves move southwest toward the Lisburne Hills where they rejoin the bulls and non-reproductive females. During summer the herd moves east through the Brooks Range, north of the CYR study area. During autumn, the herd becomes more dispersed and migrate south toward the winter range in the Nulato Hills and Unalakleet River drainage.

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Metadata Date October 13, 2017
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) October 3, 2016 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date October 13, 2017
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) October 3, 2016 (publication)
Responsible Party Alaska Center for Conservation Science, University of Alaska Anchorage (Point of Contact)
Contact Email
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Bbox East Long -152.496315667
Bbox North Lat 69.6432169963
Bbox South Lat 65.7644374237
Bbox West Long -165.973751225
Coupled Resource
Frequency Of Update notPlanned
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Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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