Lily {emdbook}

Glacier lily occurrence and fecundity data

Description

Data on sample quadrats of the glacier lily, Erythronium grandiflorum, from Thomson et al 1996

Usage

data(Lily_sum)

Format

x

location of quadrat

y

location of quadrat

flowers

number of flowers

seedlings

number of seedlings

vegetative

number of vegetative plants

gopher

index of gopher activity

rockiness

rockiness index

moisture

moisture index

flowcol

inverse quintile of flowering plants

seedcol

inverse quintile of seedlings

vegcol

inverse quintile of number of vegetative plants for image plots

gophcol

inverse quintile of gopher activity

rockcol

inverse quintile of rockiness

moiscol

inverse quintile of moisture

Details

16x16 grid of 2x2m quadrats in Washington Gulch, sampled 1992

Source

Thomson et al 1996, "Untangling multiple factors in spatial distributions", Ecology 77:1698-1715. Data from James D. Thomson, with file format conversion help from Jennifer Schmidt

Examples

data(Lily_sum)
par(mfrow=c(3,2))
for (i in 9:14) {
  image(matrix(Lily_sum[,i],nrow=16),main=names(Lily_sum)[i])
}