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  2. Urban evolution - Wikipedia

    en.wikipedia.org/wiki/Urban_evolution

    Urban evolution refers to the heritable genetic changes of populations in response to urban development and anthropogenic activities in urban areas. Urban evolution can be caused by non-random mating, mutation , genetic drift , gene flow , or evolution by natural selection . [ 1 ]

  3. Borchert's Epochs - Wikipedia

    en.wikipedia.org/wiki/Borchert's_Epochs

    Borchert's epochs refer to five distinct periods in the history of American urbanization and are also known as Borchert's model of urban evolution. Each epoch is characterized by the impact of a particular transport technology on the creation and differential rates of growth of American cities.

  4. Ecology and evolutionary biology - Wikipedia

    en.wikipedia.org/wiki/Ecology_and_evolutionary...

    The urban ecosystem is a place of extremities and makes for fast evolution. Higher rates of phenotypic change have been observed in urban areas compared to natural and nonurban anthropogenic systems. [7] A field of study has emerged regarding urban evolution in which the adaptations of animals and plants to urban environments are studied.

  5. Urbanization - Wikipedia

    en.wikipedia.org/wiki/Urbanization

    Urbanization over the past 500 years [13] A global map illustrating the first onset and spread of urban centres around the world, based on. [14]From the development of the earliest cities in Indus valley civilization, Mesopotamia and Egypt until the 18th century, an equilibrium existed between the vast majority of the population who were engaged in subsistence agriculture in a rural context ...

  6. Urban ecology - Wikipedia

    en.wikipedia.org/wiki/Urban_ecology

    Urban ecology is the scientific study of the relation of living organisms with each other and their surroundings in an urban environment. An urban environment refers to environments dominated by high-density residential and commercial buildings, paved surfaces, and other urban-related factors that create a unique landscape. The goal of urban ...

  7. Urban ecosystem - Wikipedia

    en.wikipedia.org/wiki/Urban_ecosystem

    Urban ecology is a relatively new field. Because of this, the research that has been done in this field has yet to become extensive. While there is still plenty of time for growth in the research of this field, there are some key issues and biases within the current research that still need to be addressed.

  8. Urban area - Wikipedia

    en.wikipedia.org/wiki/Urban_area

    An urban area [a] is a human settlement with a high population density and an infrastructure of built environment. This is the core of a metropolitan statistical area in the United States, if it contains a population of more than 50,000. [2] Urban areas originate through urbanization, and researchers categorize them as cities, towns ...

  9. Urban revolution - Wikipedia

    en.wikipedia.org/wiki/Urban_revolution

    Childe's own work highlighted the urban revolution which he identified as occurring in Mesopotamia in the course of the 4th millennium BCE. [3] Although sometimes interpreted [citation needed] as a model of the origins of cities and urbanism, Childe's concept in fact describes the transition from agricultural villages to state-level, urban ...