In an experiment by Villarseñor, Driscoll, Escobar, Gibbons and Lindenmayer, (2014) the effects that urbanization has on the diversity of mammals. They mesmerized that increased urbanization has caused a decline in vertebrates in urban landscapes. An area was studied on the south coast of New South Wales, with 81.4% of the area covered by landscape, 13.4% was urban area and 5% was used for industrial buildings. After studying how mammals live in an area close to populated cities and comparing them with those who lived further away, it was concluded that the abundance of mammals decreases with distance from city limits, the denser the area is with settlements, the lower the biodiversity. in the area, and finally that over time there will be a gradual change in the abundance of all species living in the forest near more urbanized areas. Studying other species in the area could have provided a better understanding of how different species respond to urbanization. Also, forests that are located near urbanizations of various sizes and how the effects of each size have on forest settlements