sac {fossil} | R Documentation |
Calculating a species area curve for a set of georeferenced localities
sac(lats, spp)
lats |
a table with latitude and longitude respectively for each locality |
spp |
A matrix/data frame of species (rows) by samples/localities (columns) |
This will take a set of geographic coordinates along with a table of species by localities and return a matrix with a column of total area and of total species present. The area is calculated by starting with the most central point, and adding those points closest to it, calculating a minimum spanning polygon as each new site is added, until all points are used.
Returns a matrix with columns of total area and total species recorded, respectively.
Matthew Vavrek
~put references to the literature/web site here ~
##add examples