B

Habitat Loss

Definition and Causes

  • Habitat Loss: the reduction of space where species can survive and reproduce due to human activities like agriculture, urbanization, deforestation, and pollution.

  • Main causes include agriculture (historical conversion of forests to farms), deforestation (for urbanization and plantations like palm oil), and climate change.

    Impact on Biodiversity:

  • Habitat loss leads to decreased biodiversity and negative impacts on ecosystems, including extinctions.

  • Sea level rise due to climate change threatens coastal habitats, with 85% of species at risk according to IUCN's Red List.

    Habitat Restoration:

  • Habitat restoration can increase local biodiversity and species populations, e.g., through re-planting lost vegetation.

  • Management strategies like protecting certain areas (e.g., national parks) are crucial to prevent further habitat loss.

    Examples and Statistics:

  • Orangutans are endangered due to deforestation for palm oil, with 2,000-3,000 killed annually and extinction predicted in 50 years.

  • Australia has 19.6% of land protected, including national parks with fossils dating back 550 million years and Indigenous protected areas.

    Future Predictions:

  • Without action, up to 23% of natural habitat could be lost in the next 60 years, impacting 88% of species from 2010 to 2050.

  • Preservation of the environment is crucial to prevent negative consequences on ecosystems. .