Changes

The study by Thomas<ref name ="Thomas" /> also showed a significant inverse correlation between mean annual predation rate, cat population and housing density; the number of prey returned was lower in highly residential areas with high cat population density.

The study by Thomas<ref name ="Thomas" /> also showed a significant inverse correlation between mean annual predation rate, cat population and housing density; the number of prey returned was lower in highly residential areas with high cat population density.

===Impact in other countries==

===Impact in other countries===

''Felis silvestris'' is a native species in most of Africa, Europe, central Asia, India, China and Mongolia. In these regions it forms a natural part of local ecology. Due to mutual tolerance between cats and humans, the density of cat populations can be much higher within and around human communities than in rural areas.

''Felis silvestris'' is a native species in most of Africa, Europe, central Asia, India, China and Mongolia. In these regions it forms a natural part of local ecology. Due to mutual tolerance between cats and humans, the density of cat populations can be much higher within and around human communities than in rural areas.