Functional group abundances (herbaceous annual, herbaceous perennial, woody) from one of the fields in the Buell-Small long term succession study (http://www.ecostudies.org/bss/). Data are based on visual estimates of percent cover, using annual means of each species, which are then summed for each functional group.
A data frame with 147 observations on the following 3 variables.
a numeric vector; indicates the age of succession since abandonment from agriculture.
plant functional type; a factor with levels
a numeric vector
Data graciously provided by Scott Meiners (Eastern Illinois University, http://www.ecostudies.org/bss/).
Stevens, M.H.H. (2009) A Primer of Ecology with R. Use R! Series. Springer.
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