The log of this quantity, D, equals H-prime, or Shannon entropy.
MacArthur and MacArthur suggested that a positive relationship exists between FHD profiles and this value. Rohde proposed the effective evolutionary time hypothesis to explain distributions of this value. A form of this quantity that accounts for differences between compositional units was introduced by R. H. Whittaker and is the ratio between this quantity's alpha, or local, type and gamma, or regional, type. An equitability of one corresponds to total evenness at the maximum value for Simpson's index of this quantity. The log of this quantity, D, equals H-prime, or Shannon entropy. This quantity may be highest under intermediate levels of disturbance. It is lower at the poles than the equator, which is partly why Madagascar is a "hot spot" for it. For 10 points, name this quantity in conservation biology that encompasses the abundance and richness of species in a community.
MacArthur and MacArthur suggested that a positive relationship exists between FHD profiles and this value.
biodiversity [or species diversity; or diversity index; accept species richness until it is read] &lt;Smart&gt;