Data about competition between seaweeds and sessile benthic invertebrates in three Californian reefs. Data were collected in sixteen 40 m x 2 m transects during 8 years. This dataset includes the "non-urchin barren" (transects where the density of sea urchins was low, which includes 4 transects x 7 yr + 6 transects x 6 yr +1 transect x 5 yr).
Usage
data("arrecifes")
Arguments
Format
A data frame with 69 observations on the following 3 variables.
sitio
Location of the transect. A factor with three levels: Carpinteria, Mohawk and Naples.
algas
Percentage cover of seaweds.
invertebrados
Percentage cover of sessile invertebrates.
Details
These data have been digitized from Figure 3a of Arkema et al. 2009.