Skip to contents

Sperm viability and immune function, measured by lysozyme activity in crickets. Each observation is a mean for a single family of males.

Usage

Crickets

Format

A data frame with 41 observations on the following 2 variables.

sperm.viability

a numeric vector

lysozyme

a numeric vector

Source

Simmons, L.W. and B. Roberts. 2005. Bacterial immunity traded for sperm viability in male crickets. Science 309: 2031.

Examples


Crickets
#>    sperm.viability lysozyme
#> 1             72.6     18.1
#> 2             79.0     16.6
#> 3             80.0     20.5
#> 4             80.0     16.4
#> 5             80.0     16.7
#> 6             80.5     18.1
#> 7             81.0     16.8
#> 8             81.7     16.8
#> 9             81.8     16.4
#> 10            81.8     14.1
#> 11            82.2     17.3
#> 12            82.3     19.8
#> 13            82.8     19.9
#> 14            82.8     17.4
#> 15            82.8     16.5
#> 16            82.8     15.6
#> 17            82.8     14.3
#> 18            83.0     17.6
#> 19            83.0     16.6
#> 20            83.1     17.3
#> 21            83.3     15.6
#> 22            83.7     16.6
#> 23            83.8     16.0
#> 24            83.9     17.5
#> 25            84.0     17.2
#> 26            84.0     13.8
#> 27            84.3     19.0
#> 28            84.4     18.3
#> 29            84.6     17.6
#> 30            84.6     15.6
#> 31            84.8     14.7
#> 32            84.9     14.3
#> 33            85.6     16.9
#> 34            86.2     15.5
#> 35            86.5     13.1
#> 36            87.3     15.6
#> 37            87.6     13.5
#> 38            87.7     17.5
#> 39            87.8     13.7
#> 40            88.1     18.5
#> 41            88.2     16.1
xyplot(lysozyme ~ sperm.viability, Crickets)