Blossom (version 1.3)

habitat: Blue grouse winter habitat selection data

Description

Example comparing used versus available blue grouse winter habitat described by the basal area measurements of four species of trees present in stands on winter range.

Usage

data(habitat)

docType

data

source

Cade, B.S., and R.W. Hoffman. 1990. Winter use of Douglas-fir forests by blue grouse in Colorado. Journal of Wildlife Management 54, 471--479.

Examples

Use<-c("Used","Available")
par(mfrow = c(2,2),mar = c(3,4,3,2))
boxplot(habitat$dfir~Use[habitat$use],col = "darkgreen",
    main = "Fir basal area measurement
 in used and available habitat",
    ylab = "Basal Area Measurement")
boxplot(habitat$junip~Use[habitat$use],col = "blue",
    main = "Juniper basal area measurement
 in used and available habitat",
    ylab = "Basal Area Measurement")
boxplot(habitat$aspen~Use[habitat$use],col = "orange",
    main = "Aspen basal area measurement
 in used and available habitat",
    ylab = "Basal Area Measurement")
boxplot(habitat$other~Use[habitat$use],col = "brown",
    main = "Other basal area measurement
 in used and available habitat",
    ylab = "Basal Area Measurement")