ex0918 {Sleuth3}

Speed of Evolution

Description

Researchers studied the development of a fly (Drosophila subobscura) that had been accidentally introduced from the Old World into North America around 1980.

Usage

ex0918

Format

A data frame with 21 observations on the following 8 variables.

Continent

a factor with levels "NA" and "EU"

Latitude

latitude (degrees)

Females

average wing size (10^3\timeslog mm) of female flies on log scale

SE_Females

standard error of wing size (10^3\timeslog mm) of female flies on log scale

Males

average wing size (10^3\timeslog mm) of male flies on log scale

SE_Males

standard error of wing size (10^3\timeslog mm) of male flies on log scale

Ratio

average basal length to wing size ratios of female flies

SE_Ratio

standard error of average basal length to wing size ratio of female flies

Source

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

References

Huey, R.B., Gilchrist, G.W., Carlson, M.L., Berrigan, D. and Serra, L. (2000). Rapid Evolution of a Geographic Cline in Size in an Introduced Fly, Science 287(5451): 308–309.

Examples

str(ex0918)