Causes of Biodiversity Losses – Class 12 | Chapter – 15 | Biology Short Notes Series PDF

Causes of Biodiversity Loss: Biodiversity loss refers to the decline in the variety and abundance of species, ecosystems, and genetic diversity on Earth. This loss of biodiversity has far-reaching consequences for the functioning of ecosystems and the provision of ecosystem services, such as water purification, soil formation, and pollination of crops. Biodiversity loss also affects human well-being by reducing the availability of resources such as food, medicine, and materials, and by contributing to climate change and other environmental problems.

Causes of Biodiversity Losses

• Habitat destruction: The destruction of natural habitats, such as forests, wetlands, and grasslands, is a major driver of biodiversity loss. When habitats are destroyed, species are unable to find the food, shelter, and breeding sites they need to survive, and their populations can decline or disappear.

• Climate change: Climate change is affecting many species by altering the timing and availability of food, causing shifts in the distribution of species, and altering the conditions that sustain ecosystems.
• Over-exploitation: Over-fishing, hunting, and the collection of wild plants and animals for food, medicine, or other purposes can lead to declines in species populations and loss of biodiversity.
• Pollution: Pollution from chemicals, plastics, and other waste can harm and kill wildlife and degrade ecosystems.
• Invasive species: Non-native species that are introduced to an ecosystem can outcompete native species for food and habitat, leading to declines in biodiversity.

• Disease: The spread of diseases can cause declines in populations of wildlife and other organisms, leading to biodiversity loss.

Follow on Facebook

By Team Learning Mantras