gala {faraway} | R Documentation |
Species diversity on the Galapagos Islands
Description
There are 30 Galapagos islands and 7 variables in the dataset. The
relationship between the number of plant species and several geographic
variables is of interest. The original dataset contained several missing
values which have been filled for convenience. See the galamiss
dataset for the original version.
Format
The dataset contains the following variables
- Species
the number of plant species found on the island
- Endemics
the number of endemic species
- Area
-
the area of the island (km$^2$)
- Elevation
the highest elevation of the island (m)
- Nearest
the distance from the nearest island (km)
- Scruz
the distance from Santa Cruz island (km)
- Adjacent
the area of the adjacent island (square km)
Source
M. P. Johnson and P. H. Raven (1973) "Species number and endemism: The Galapagos Archipelago revisited" Science, 179, 893-895