I have some home range estimates for fish that I made using the adehabitat pkg in R. However, a lot of them overlap land, so I need to subtract the area where they overlap with land ("BaseMap") from the total area to get the "water" estimate. I tried with one file, and I think if I use the intersect tool, then the calculate area tool in arcmap, I can get the area of intersection(overlap), and eventually subtract that from the total values I got from R. The problem is, I have a bunch of fish, and want to automate the process, or else I'll be stuck clicking my life away.
I've tried to build a model using the iterate feature classes option in ModelBuilder, but I don't think it's actually iterating. Plus, I get an error for Calculate areas: "000641 : Too few records for analysis. This tool requires at least feature(s) to compute results", which I don't understand because I've run it with only feature and it works fine. I'll attach my model attempt here. My goal was to calculate the total area of my KUD shapefiles, and then the area of intersection with the basemap, which I will eventually subtract. Any advice would be greatly appreciated.