You are here: Home
/ Publication Information
Title: Validation of elk resource selection models with spatially independent data
Author: Coe, Priscilla K.; Johnson, Bruce K.; Wisdom, Michael J.; Cook, John G.; Vavra, Marty; Nielson, Ryan M.
Source: Journal of Wildlife Management. 75(1): 159-170
Publication Series: Journal/Magazine Article (JRNL)
Description: Knowledge of how landscape features affect wildlife resource use is essential for informed management. Resource selection functions often are used to make and validate predictions about landscape use; however, resource selection functions are rarely validated with data from landscapes independent of those from which the models were built. This problem has severely limited the application of resource selection functions over larger geographic areas for widely distributed species. North American elk (Cervus elaphus) is an example of a widely-distributed species of keen interest to managers and for which validation of resource selection functions over large geographic areas is important. We evaluated the performance of resource selection functions developed for elk on one landscape in northeast Oregon with independent data from a different landscape in the same region. We compared predicted versus observed elk resource use for 9 monthly or seasonal periods across 3 yr. Results showed strong, positive agreement between predicted versus observed use for 2 spring and 3 late summer-early fail models. Predicted versus observed use was negatively or weakly positively correlated for 3 summer models and 1 mid-fall model. Predicted and observed use correlated well when forage was limited (spring and late summer or early fall), corresponding to important biological stages for elk (parturition and breeding seasons). The models we validated for spring and late summer-early fall may be used to evaluate management activities in areas with similar landscape characteristics.
Keywords: Cervus elaphus, elk, habitat use, model validation, resource selection models
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
XML: View XML
Coe, Priscilla K.; Johnson, Bruce K.; Wisdom, Michael J.; Cook, John G.; Vavra, Martin; Nielson, Ryan M. 2011. Validation of elk resource selection models with spatially independent data. Journal of Wildlife Management. 75(1): 159-170.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility