Joseph M. Northrup, Mevin B. Hooten, Charles R. Anderson Jr., George Wittemyer. 2013. Practical guidance on characterizing availability in resource selection functions under a use–availability design. Ecology 94:1456–1463. http://dx.doi.org/10.1890/12-1688.1
Supplement
R code used in simulations and .R data files used in empirical deer analysis presented in the paper.
Ecological Archives E094-131-S1.
Authors
File list (downloads)
Description
Joseph M. Northrup
Department of Fish, Wildlife, and Conservation Biology, Colorado State University
1474 Campus Delivery, Fort Collins, Colorado 80523 USA
E-mail: joe.northrup@colostate.edu
Mevin B. Hooten
U.S. Geological Survey, Colorado Cooperative Fish and Wildlife Research Unit
Department of Fish, Wildlife, and Conservation Biology, Colorado State University
Department of Statistics, Colorado State University
1474 Campus Delivery, Fort Collins, Colorado 80523 USA
Charles R. Anderson, Jr.
Mammals Research Section Colorado Parks and Wildlife
711 Independent Ave., Grand Junction, Colorado 81505 USA
George Wittemyer
Department of Fish, Wildlife, and Conservation Biology, Colorado State University
1474 Campus Delivery, Fort Collins, Colorado 80523 USA
File list
Northrup_et_al_sim1.R (MD5: 7871a38651afc40d2fc94a39017b0350)
Northrup_et_al_sim2.R (MD5: 657d577665837eb60db6d221c9531163)
Northrup_et_al_sim3.R (MD5: 94adf95bcd9368d56c893dd2652be15b)
Northrup_et_al_deer.R (MD5: af1edd7b19575e791f08095d93f46ff5)
avail.file.R (MD5: 18c3f792f9cad9683b12fe5cf41bad97)
used.file.R (MD5: 2b7f7836b9f38cbd02efbdea561d2305)
elev_simple.asc (MD5: 3f265f17358719e0fae209b989c4ca5d)
Description
Northrup_et_al_sim1.R: Simulation of use-availability data as a point process at 3rd order scale and fitting of resource selection functions with varying availability samples that are matched or mismatched to the used sample. Covariate used is elevation, from the Piceance Basin NW Colorado.
Northrup_et_al_sim2.R: Simulation of use-availability data as a point process at 3rd/4th order scale and fitting of resource selection functions with varying availability samples that are matched or mismatched to the used sample. Covariates simulated as Gaussian random field.
Northrup_et_al_sim3.R: Simulation of use-availability data as a point process at 3rd order scale and fitting of resource selection functions with varying availability samples that are matched or mismatched to the used sample. Covariates simulated as Gaussian random field.
Northrup_et_al_deer.R: Code for testing convergence of resource selection function coefficients as a function of availability sample size for one mule deer and 3 covariates, elevation, distance to roads, and slope.
avail.file.R: Environmental covariates at available locations used in "Northrup_et_al_deer.R" code.
used.file.R: Environmental covariates at used locations used in "Northrup_et_al_deer.R" code.
elev_simple.asc: ASCII file of elevation in the Piceance Basin, for use in "Northrup_et_al_sim1.R."
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