SexualSelection: Sexual Conflict

In abd: The Analysis of Biological Data

Description

Number of species in each of two taxa in closely related taxon pairings and the difference between the two groups. One taxon has multiple matings (polyandrous.species) and one has only single matings (monandrous.species).

Format

A data frame with 25 observations on the following 4 variables.

polyandrous.species

a numeric vector

monandrous.species

a numeric vector

difference

a numeric vector

taxon.pair

identifier

Source

Arnqvist, G., M. Edvardsson, U. Friberg, and T. Nilsson. 2000. Sexual conflict promotes speciation in insects. Proceedings of the National Academy of Sciences (USA) 97: 10460-10464.

References

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC27046/

Examples

SexualSelection

histogram(~ difference, SexualSelection, n = 20)

hist(SexualSelection$difference, breaks = 20)

# Calculate the number of tests and the number of negative tests
(n <- length(SexualSelection$difference))
(n.neg <- sum(SexualSelection$difference < 0))

2 * pbinom(q = n.neg, size = n, prob = 0.5)

# With a binomial test
binom.test(n.neg, n, p = 0.5)

Example output

Loading required package: nlme
Loading required package: lattice
Loading required package: grid
Loading required package: mosaic
Registered S3 method overwritten by 'mosaic':
  method                           from   
  fortify.SpatialPolygonsDataFrame ggplot2

The 'mosaic' package masks several functions from core packages in order to add 
additional features.  The original behavior of these functions should not be affected by this.

Attaching package: ‘mosaic’

The following objects are masked from ‘package:dplyr’:

    count, do, tally

The following object is masked from ‘package:Matrix’:

    mean

The following object is masked from ‘package:ggplot2’:

    stat

The following objects are masked from ‘package:stats’:

    binom.test, cor, cor.test, cov, fivenum, IQR, median, prop.test,
    quantile, sd, t.test, var

The following objects are masked from ‘package:base’:

    max, mean, min, prod, range, sample, sum

   polyandrous.species monandrous.species difference taxon.pair
1                   53                 10         43          A
2                   73                120        -47          B
3                  228                 74        154          C
4                  353                289         64          D
5                  157                 30        127          E
6                  300                  4        296          F
7                   34                 18         16          G
8                 3400               3500       -100          H
9                   20               1000       -980          I
10                 196                486       -290          J
11                1750                660       1090          K
12                  55                 63         -8          L
13                  37                115        -78          M
14                 100                 30         70          N
15               21000                 60      20940          O
16                  37                 40         -3          P
17                   7                  5          2          Q
18                  15                  7          8          R
19                  18                  6         12          S
20                 240                 13        227          T
21                  15                 14          1          U
22                  77                 16         61          V
23                  15                 14          1          W
24                  85                  6         79          X
25                  86                  8         78          Y
[1] 25
[1] 7
[1] 0.04328525



data:  n.neg out of 25L
number of successes = 7, number of trials = 25, p-value = 0.04329
alternative hypothesis: true probability of success is not equal to 0.5
95 percent confidence interval:
 0.1207167 0.4938768
sample estimates:
probability of success 
                  0.28 

abd documentation built on May 2, 2019, 2:14 p.m.