CrabShells3 {SRMData} | R Documentation |
Crab shells and anemones (3x3)
Description
The placement of anemones on their shells by hermit crabs.
Usage
data(CrabShells3)
Format
A data frame with 9 rows and 3 columns:
- ShellColumn
The column where anemone placed; one of
1
(Side 1),2
(Central) or3
(Side 2)- ShellRow
The row where anemone placed; one of
1
(Side 1),2
(Central) or3
(Side 2)- Counts
The number of anemones in the indicated sector on the shell
Details
The data provide the number of anemones placed on their shell by hermit crabs in indicated regions. Roughly, the shells are divided into a $3$ x $3$ grid of approximately equal areas.
Source
Brooks, W. R. (1989). Hermit crabs alter sea anemone placement patterns for shell balance and reduced predation. Journal of Experimental Marine Biology and Ecology, 132(2), 109–121.
[Package SRMData version 1.0.1 Index]