Data are the number of butterfly species in 16 islands of forest of various sizes in otherwise cleared areas in Brazil.
A data frame with 16 observations on the following 2 variables.
area (ha) of forest patch
number of butterfly species
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Lovejoy, T.E., Rankin, J.M., Bierregaard, Jr., R.O., Brown, Jr., K.S., Emmons, L.H. and van der Voort, M. (1984). Ecosystem decay of Amazon forest remnants in Nitecki, M.H. (ed.) Extinctions, University of Chicago Press.
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