This package contains one dataset provided by Roland and Matter on Dryad:
butterfly: 21 subpopulations, time series of butterfly (speciesname) abundance.
(Source: https://datadryad.org/resource/doi:10.5061/dryad.tp324)
It also includes functions for working with the data and several worked examples.
# Install the development version from GitHub
devtools::install_github("atredennick/modselr")
# Install the development version from GitHub, with HTML vignettes (takes longer)
devtools::install_github("atredennick/modselr", build_vignettes = TRUE)