island.rich {asbio}R Documentation

Mammal richness data with respect to montane island area.

Description

Among other things the theory of island biogeography (Wilson and McArthur 1967) predicts that species richness will increase with increasing island area. Islands, however, need not be a body of land in water. Lomolino et al. (1989) investigated the relationship between the area of montane forest patches and the richness of mammal fauna in the Southwestern United States. His data are compiled here.

Usage

data(island.rich)

Format

This data frame contains the following columns:

Island
a factor with the montane island names.
Richness
a numeric vector providing the the number of mammal species identified per island.
Area_km2
Montane island area in (in km^2).

Source

Lomolino, M. V., J. H. Brown and R. Davis (1989) Island biogeography of montane forest mammals in the American Southwest. Ecology 70:180-194.


[Package asbio version 0.1 Index]