Despite the hostile environment, animal and plant life manage to develop in cities. It occupies parks or fallow lands; not only rats and cockroaches proliferate, but also foxes and birds of prey. In certain neighborhoods of Zurich, for example, the density of foxes is 10 times higher than in the countryside! If for some, there is no nature in the city, the city being by definition the opposite of nature, there is however a very particular form of biodiversity.
The urban ecosystem distinguishes itself from natural eco-systems due to the creation of artificial environments that change, amongst others, the climate (bursts of heat, less powerful winds) and disturbs the water cycle (water runoff,…) Air pollution directly affects plants; noise, vibrations, lack of light and space underground harm the development of trees.
Maybe expectedly, studies show that salt spread about in order to melt snow is the first enemy of vegetation in...