title: Exponential Values for the Species-Area Relation.
abstract: Data on vegetation types in six 900-m(2) plots in the Midwest reveal that the species-area curves are not logarithmic but more nearly approach an exponential equation of the form y = kx(2) for areas less than 100 m(2). For larger areas the curve appears to be sigmoid.
authors.forename: P D
authors.initials: PD
authors.lastname: Kilburn