file: Number_of_barnacle_recruits contains data used in analysis. The columns are:
"Cage_ID: Identifier for each of the 14 cage, labeled C01, C02,…to C14."
"Block: Identifier for each of the seven blocks, labeled B1, B2,..to B7."
"TRT: Identifier for the two treatment levels, which are limpets present in the cage (PST) and limpets absent in the cage (ABT)."
Cd: Number of Chthamalus dalli recruits in each cage at the end of the experiment. Entries are numeric and range from 61 to 2104; there are no missing values.
Bg: Number of Balanus glandula recruits in each cage at the end of the experiment. Entries are numeric and ranges from 9 to 239; there are no missing values.
Limpet: Number of limpet survivors in each cage at the end of the experiment. The starting number was five limpets per cage in the cages with limpet present (TRT level: PST). Entries for PST range from 1 to 4; there are no missing values. Entries for cages without limpets (TRT level: ABT) are NA.


file: Sizes_of_barnacle_recruits contains data used in analysis. The columns are:
"Cage_ID: Identifier for each of the 14 cage, labeled C01, C02,…to C14."
"Block: Identifier for each of the seven blocks, labeled B1, B2,..to B7."
"TRT: Identifier for the two treatment levels, which are limpets present in the cage (PST) and limpets absent in the cage (ABT)."
"Species: Species of barnacle recruits measuered after the experiment. Cd: Chthamalus dalli, Bg: Balanus glandula."
Size: Diameter of barnacle recruits in mm.