Overpopulation: The Main Threat To Loss Of Biodiversity In Karachi

Increasing Population is the Main threat of biodiversity loss in Karachi:

Wildlife is significant because, in addition to being visually appealing, it contributes to the maintenance of natural balance. Over the decades, two main factors have attributed to Karachi’s loss of land animal wildlife: overpopulation (which has resulted in forest cutting and unplanned urbanization) and poaching for illegal local and international trade. 

Well planned urbanization with plenty of forestation and green space to ensure that any planted animal species has a chance to human.inadequate food, and increased air pollution.

According to recent surveys,

During the last two decades, the population of parrots and sparrows in Karachi has decreased by 80 percent and 70 percent respectively.

Cutting trees and grasslands for wood and building has deprived these birds (parrot and saparows) of their nesting sites and suitable diet. On the one hand, increased pollution and waste sites have increased the number of “opportunistic birds” such as kites, crows, and mynas.

Kites, which are also carnivores, are a serious threat to sparrows and parrots. Growing pollution and waste dumps have multiplied the number of opportunistic birds in search of food. And these seed-eaters, particularly sparrows, are their primary prey.

The main threat to biodiversity is from pressure on earthly resources. Increased population growth and high standards of living cause this increased pressure. The process of economic development itself widens inequality. Therefore, poor people are forced to use natural resources more. In most instances, the development models are incompatible with the sustainable use of natural resources.

Increasing population is the root cause of increasing pollution which affects the climate. It could not provide favorable conditions to the wildlife through this they don’t stay in a harsh climate.

Massive plantations of “abnormal tree” such as Conocarpus, mesquite, and eucalyptus, have no disadvantages other than the fact that they do not provide nesting habitat for sparrows and parrots. Mesquite trees are little leguminous plants that have caused havoc on wildlife. It has expanded out spontaneously, unlike Eucalyptus and Conocarpus, wreaking havoc on little remained of the city’s suburban ecology.

Author: Rumana Khan
Institute: Institute of Environmental Studies, University of Karachi
District: Karachi, Sindh, Pakistan

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