Eelgrass Genotypes — Eelgrass • abd

Number of shoots (shoots) surviving in each of 32 experimental plots planted with 1, 3, or 6 different genotypes of eelgrass (treatment.genotypes).

Usage

Eelgrass

Format

A data frame with 32 observations on the following 2 variables.

genotypes: a numeric vector of the number of genotypes planted in each plot
shoots: a numeric vector of the total number of shoots in each plot

Source

inferred from Reusch, T.B.H., A. Ehlers, A. Hämmerli, and B. Worm. 2005. Ecosystem recovery after climatic extremes enhanced by genotypic diversity. Proceedings of the National Academy of Sciences (USA) 102: 2826-2831.

References

http://www.pnas.org/content/102/8/2826.abstract

Examples


Eelgrass
#>    genotypes shoots
#> 1          1     71
#> 2          1     61
#> 3          1     49
#> 4          1     38
#> 5          1     36
#> 6          1     32
#> 7          1     30
#> 8          1     28
#> 9          1     27
#> 10         1     21
#> 11         1     14
#> 12         1     11
#> 13         3     67
#> 14         3     58
#> 15         3     53
#> 16         3     52
#> 17         3     47
#> 18         3     46
#> 19         3     41
#> 20         3     36
#> 21         3     35
#> 22         3     20
#> 23         6     86
#> 24         6     84
#> 25         6     69
#> 26         6     64
#> 27         6     62
#> 28         6     48
#> 29         6     45
#> 30         6     31
#> 31         6     47
#> 32         6     45

# Convert treatment.genotypes to a factor
Eelgrass$genotypesF <-
  factor(Eelgrass$genotypes)
str(Eelgrass)
#> 'data.frame':	32 obs. of  3 variables:
#>  $ genotypes : int  1 1 1 1 1 1 1 1 1 1 ...
#>  $ shoots    : int  71 61 49 38 36 32 30 28 27 21 ...
#>  $ genotypesF: Factor w/ 3 levels "1","3","6": 1 1 1 1 1 1 1 1 1 1 ...
xyplot(shoots ~ genotypes, Eelgrass)

xyplot(shoots ~ genotypesF, Eelgrass)