Dear All, I write to ask if anyone has an R code to calculate species richness per quarter degree grid.
I have a set of polygon shapefiles showing distribution of different species within a country. I would like to first create quarter degree grids over the entire country and using the polygon shapefiles, to extract species richness per grid. Any help with R code would be highly appreciated. Barnabas Daru \-/ /\ /--| /---/ Barnabas Daru |--/ PhD Student, \-/ African Centre for DNA Barcoding, /\ University of Johannesburg, /--\ PO Box 524, Auckland Park, 2006, |---\ South Africa. \---\ Lab: +27 11 559 3477 \--| Mobile: +277 3818 9583 \-/ Website: http://acdb.co.za/index.php?page=mr-barnabas-h-daru /\ /--\ # if you can think it, you can do it. [[alternative HTML version deleted]]
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