The various causes of biodiversity losses are mentioned below:

1. HABITAT LOSS CAUSES BIODIVERSITY LOSS. 

The thinning, fragmentation, or outright elimination of an ecosystem’s plant, soil, hydrologic, and nutrient resources is known as habitat loss.

• INVASIVE SPECIES CAUSE BIODIVERSITY LOSS.

Any non-native species that significantly alters or disrupts the ecosystems it colonises is considered an invasive species. Invasive species can cause ecosystem disruption because they are better competitors than native species; they can consume food resources more quickly or effectively, or take over habitats quicker than native species can adjust to the changes. Some invading species prey on native species, and if the natives lack natural defences against the invaders, they may be wiped out quickly.

1. OVEREXPLOITATION CAUSES BIODIVERSITY LOSS.

Overexploitation (overhunting and overfishing) is the practise of collecting an excessive number of aquatic or terrestrial animals, resulting in the depletion of certain species’ populations and the extinction of others.

• POLLUTION IS THE CAUSE OF BIODIVERSITY LOSS.

The addition of unwanted or harmful nutrients or compounds to an environment is referred to as pollution. The quality of food, water, and other habitat resources deteriorate in a polluted area, perhaps to the point that certain species must move away or perish if the pressure is too high.

• CLIMATE CHANGE ASSOCIATED WITH GLOBAL WARMING IS CAUSING BIODIVERSITY LOSS.

The long-term increase in Earth’s average air temperature (due mostly to human activity) over the past one to two centuries is known as global warming. It can refer to heat caused by growing levels of carbon dioxide, methane, and other greenhouse gases in the atmosphere.