How Urbanisation Significantly Influences Bird Communities in Significant Ways

Specifically, there are differences between abundant native species and alien species. It shows that these two species react differently to changing landscapes; as the urbanization progresses, the number of alien species exceeds that of native birds. Improper surfaces and more modifications to the land cover reduce the abundance of resources available for birds (Blair 1996). This in turn benefits more resilient birds, primarily non-conventional birds (Whitney and Adams 1980).

If urbanization is one of the most important global trends of the 21st century, 70% of the world population is expected to live in cities by 2050, and how African urbanization, and how it grows Is the key to achieving global sustainability. It is a chance. Until 2050 cities in developing countries will absorb more than 2 billion new city residents and will account for 95% of the world's urban growth. Cities in Africa occupy the largest share and in some cases will grow at twice the rate of other urban populations in the world. By the middle of the century only the African urban population in sub-Saharan Africa is quadrupled and is expected to attract 15 billion new urban residents. How Africa is prepared for the future of the city will have a wide range of social, economic and environmental impacts not only for the continent of Africa but also for the world.

Urbanization is an increase in the number of urban residents. Two reasons for urbanization are natural population growth and migration from rural areas to cities. Urbanization affects villages of all sizes, from small villages to towns and cities, leading to the growth of the giant city where more than 10 million people live. Rapid urbanization often means that the surrounding areas around the city grow faster than the city center, which may lead to the development of slums. Other drivers to promote migration to urban areas include better educational opportunities, better medical care, better access to social services, opportunities for social and cultural activities. Other factors that keep people away from rural areas include poor living conditions, lack of paid employment, poor medical care, limited education and economic opportunities, and environmental changes.

Brazilian industrialization began at the beginning of the 20th century, had always important links with urbanization, and directly influenced the composition and evolution of urban networks. The major cities of Rio de Janeiro and Sao Paulo achieved the greatest investment in Brazil's economic development and brought numerous immigrants from rural areas. The 2000 census (IGBE) recorded that 82% of the 174 million residents of Brazil live in cities. Furthermore, 80% of the total population live in 25% of cities, and you can see a high concentration of space. (Xavier)