Biodiversity in Population Dynamics - Essay Example

‘It took 1800 years to reach a total population of 1 billion, but only 130 years to reach 2 billion, and a mere 45 years to reach 4 billion’ (Farabee, 1995). Looking at the statistics, it is observed that the human population does not follow the logistic growth as compared to the population of other organisms on the earth.

The growth of the human population has a direct bearing on the factors which have a significant impact on the life expectancy of man. The population grows exponentially till the resources are available and the life cycle of the man follows a set pattern. Once the resources become scarce, other factors come into force and create conditions that adversely affect the life expectancy of the people. Factors like land, housing, clean air, water, and other ecological and biological paradigms create circumstances that limit exponential growth and defeat the logistics that are used to predict population growth. Since these factors can be controlled to some extent by the developed countries and population growth can be effectively contained within specified limits. In recent times, trying to match the carrying capacity with that of population size has resulted in negative population growth in some developed countries like the United Kingdom, which has become a major cause of concern.

Nature has a strange way of sending messages to the world at large. The earth has a finite size and therefore, the organisms residing on it must ensure that the ecosystem of the earth is not disturbed drastically. The local, national, and international policies must address the demographic needs of the region and facilitate resources to match the increasing population. The fast-advancing technology and rapid globalization, including local migration, have adversely affected the ecological conditions. The government must implement strategies and plans that can effectively control population growth through birth control measures.

The conservation and preservation of natural resources are an important part of population dynamics as their sustenance depends on the available resources. Population growth has brought into focus the issue of sustainable development. Sustainable development is defined as the maintenance of an ecosystem that facilitates a continuous supply of natural resources like water, clean air, energy, and food with a proper waste disposal system. Awareness regarding sustainable development must be created amongst the public so that despite advances in technology, the environment is preserved for future generations. The fast depletion of natural resources has disturbed the ecosystem, resulting in changes in global environmental conditions like global warming, an increasing number of climate-related natural disasters, etc. The national and international agencies must form strategies that would promote education, healthcare, and employment so that people can grasp the seriousness of the issue and make individual efforts toward sustainable development.