Spatial Correspondence

Spatial correspondence between mammal and ant species richness was determined by subtracting the ant species richness coverage from the mammal species richness coverage. For those coverages to be comparable, they were both first normalized by recalculating richness values such that they fell between 0 and 100, so that a value of 100 was equivalent to the highest species richness for both of the groups. In the coverage of spatial correspondence, values of 0 (green) reveals that richness between mammals and ants are equivalent. High positive values (red to orange) identify areas with higher mammal richness relative to ant richness, and high negative values (blue to magenta) identify higher ant species richness relative to mammal richness. Patterns of mammal and ant species richness reveal interesting patterns of correspondence and dis-harmony between the two taxa. The large areas of green on the correspondence coverage indicates that richness between mammals and ants was similar over much of the Florida Everglades. However, two interesting deviations occur. In the Big Cypress area of southwest Florida, there is a lack of correspondence between mammals and ants, primarily in cypress dominated habitats. This is not necessarily because mammal species richness is especially high in these areas, but because ant richness is low. Further north, the opposite situation exists, normalized ant species richness is higher than normalized mammal species richness in several pine-dominated habitats.

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