Zebra Finch Carotenoids

Data on cell-mediated immunocompetence (PHA) and humoral immunity (SRBC) in Zebra Finches that received supplemental carotenoids (CAROT) and those that did not (NO).

Usage

ZebraFinches

Format

A data frame with 20 observations on the following 3 variables.

treatment

a factor with levels: CAROT and NO

PHA

a numeric vector

SRBC

a numeric vector

Source

McGraw, K.J. and D.R. Ardia. 2003. Carotenoids, immunocompetence, and the information content of sexual colors: an experimental test. The American Naturalist 162: 704-712.

Examples

ZebraFinches
#>    treatment   PHA SRBC
#> 1      CAROT 1.511    2
#> 2      CAROT 1.311    2
#> 3      CAROT 1.460    3
#> 4      CAROT 1.352    4
#> 5      CAROT 1.491    5
#> 6      CAROT 1.599    4
#> 7      CAROT 1.653    8
#> 8      CAROT 1.390    5
#> 9      CAROT 1.779    7
#> 10     CAROT 1.721    4
#> 11        NO 1.454    4
#> 12        NO 1.226    2
#> 13        NO 1.198    3
#> 14        NO 1.139    4
#> 15        NO 1.277    3
#> 16        NO 1.490    0
#> 17        NO 0.912    3
#> 18        NO 1.316    4
#> 19        NO 1.234    2
#> 20        NO 1.332    1