Threatened tropical desert habitats

Endangered hot arid habitats
Threatened tropical semi-desert habitats

Nature

Threatened tropical desert habitats are arid regions within the tropics facing significant environmental pressures that endanger their unique ecosystems. These habitats, characterized by low rainfall and high temperatures, support specialized flora and fauna adapted to harsh conditions. Human activities such as overgrazing, unsustainable agriculture, mining, and urban expansion, combined with climate change, accelerate habitat degradation, loss of biodiversity, and desertification. The decline of tropical desert habitats disrupts ecological balance, threatens endemic species, and reduces ecosystem services vital for local communities. Addressing these threats is crucial for conserving biodiversity and maintaining the resilience of tropical desert environments.

Background

The principal tropical deserts are the Sahara and the Kalahari in Africa, the Sonoran in northern Mexico and the southwestern United States, those of Australia, and those of Arabia, Iran and Pakistan in southwestern Asia. The tropical desert, or arid tropical climate, generally lies between 15ø and 30ø latitude where atmospheric circulation brings dry, subtropical air into mid-latitudes. Mean monthly temperatures in the summer reach well above 35øC, with extremes of more than 55øC. Only short grasses and desert shrubs survive in the dry tropics.