There are various threats to biodiversity around the world. The following list provides a rundown of some of the main causes of biodiversity loss.

  • Human population growth at a high level without balancing natural resource consumption and human living space with nature's requirements
  • Habitat encroachment, loss, destruction, deforestation, salinisation, desertification, etc.
  • Pollution and climate change
  • Overuse/overexpolitation of natural resources through such activities as over-fishing, agriculture, aquaculture, forestry, hunting, etc.
  • Unsustainable exploitation promoted by legal, economic and corporate systems
  • A lack of economic and political will to value biodiversity, the natural environment and natural resources
  • Lack of knowledge, assumption of ability to "manage" the environment based on limited human understanding
  • Ownership and management inequities with respect to use and benefits of natural resources and biodiversity
  • Lack of acceptance of the value of life, nature and biodiversity for its own sake
  • Impact of invasive species, both plant and animal; favouring of some species over others for sake of agriculture, tourism, etc.
  • Excess pumping of underground water resources (reduces wetlands, water availability, replenishment capacity, etc.)
  • Recreational and leisure pursuits of human beings (such as hunting, golf courses, ATV use on fragile lands, not treading softly on the land, unleashed pets, etc.)
  • Disease and epidemics in animal and plant communities, often exacerbated by human caused pressures
  • Eutrophication
  • Unsustainable lifestyle choices of human beings

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