Topic 8: Islands

ISLANDS

Types and Formation

Islands are land masses completely surrounded by water. They can form through volcanic activity, sediment deposition, or tectonic movements. There are oceanic islands, which arise from volcanic activity, and continental islands, which are part of the continental shelf. Madagascar, located off the southeastern coast of Africa, is known for its unique biodiversity. The Hawaiian Islands in the Pacific are volcanic islands with diverse ecosystems. Greenland, the world’s largest island, is largely covered by ice.

Human Impact

Islands often have distinct ecosystems and cultures. Human activities, such as tourism and development, can significantly impact these unique environments. Conservation efforts are important to preserve the biodiversity and cultural heritage of island regions. Protecting island environments involves managing invasive species, preserving natural habitats, and promoting sustainable tourism practices to safeguard both biodiversity and local cultures. Islands are susceptible to natural disasters such as hurricanes, tsunamis, and volcanic eruptions, which can have devastating effects on their ecosystems and communities.

Tourism Impact

Tourism is a significant economic activity for many islands but can lead to environmental degradation, habitat loss, and cultural disruption if not managed sustainably.