their own species and avoid competition with the other species. Isodars have also been used to show the effect of human habitat selection on biodiversity. They can also be employed to examine the cost and density dependence of habitat selection in a population. Criticism leveled against the method includes the fact that in attempting to condense a very complex combination of parameters into the single metric of population density, misleading conclusions about the underlying dynamics may be suggested or supported. References Population ecology Evolutionary ecology