moth_distrib {electivity}

Distribution of gypsy moth larvae, Lymantria dispar, feeding in a deciduous forest in southwestern Quebec, Canada.

Description

This is Table 2 in the cited source paper.

Usage

moth_distrib

Format

A dataframe with 19 rows and 6 variables:

binomen

Species of tree.

n_indiv

Number of randomly sampled trees.

dbh_cm_sum

Summed diameters at breast height, in centimeters.

larva_mean_sum

Summed numbers of larvae (the means of two counts taken on June 26-27, 1979 and July 3-4, 1979).

r

Relative proportion of larvae feeding on trees (Lechowicz 1982, Equation 2)

p

Estimate of foliage biomass (Lechowicz 1982, Equation 1).

Source

Lechowicz, M.J., 1982. The sampling characteristics of electivity indices. Oecologia 52, 22–30. https://doi.org/10.1007/BF00349007

Examples

data(moth_distrib)