What is the relation between species richness and area? What is the significance of the slope of regression?
Alexander Von Humboldt has observed that within a region, species richness increased with increase explored area but only upto a limit thus the relationship between species richness and area for several taxa is considered to be a rectangular hyperbola. On a log scale, the relationship becomes linear and is described law equation: Log S = Log C + Z Log A The values of the slope of regression are identical regardless of the taxonomic group or the region. When such analysis is done among the species belonging to very large areas, the slope of regression would be much steeper.