"0","# simple relationships with latitude and longitude
par(mfrow=c(2,2), mar=c(4,4,1,1)+0.1)
plot(H~site.longlats$Latitude, pch=16, xlab=""Latitude"")
plot(S.obs~site.longlats$Latitude, pch=16, xlab=""Latitude"")
plot(Simp~site.longlats$Latitude, pch=16, xlab=""Latitude"")
plot(H_even~site.longlats$Latitude, pch=16, xlab=""Latitude"")
par(mfrow=c(2,2), mar=c(4,4,1,1)+0.1)
plot(H~site.longlats$Longitude, pch=16, xlab=""Longitude"")
"
"0","plot(S.obs~site.longlats$Longitude, pch=16, xlab=""Longitude"")"
