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As a result, island ecosystems comprise 30% of the world’s biodiversity hotspots, 50% of marine tropical diversity, and some of the most unusual and rare species. [2] Many species still remain unknown. The diversity of species on islands is highly impacted by human activities such as deforestation and introduction of the exotic species.
Island species dynamics give information about how species move and interact within Island Like Systems (ILS). Rather than an actual island, ILS are primarily defined by their isolation within an ecosystem. In the case of an island, the area referred to as the matrix is usually the body of water surrounding it.
Assateague Island National Seashore is a unit of the National Park Service system of the U.S. Department of the Interior.Located on the East Coast along the Atlantic Ocean in Maryland and Virginia, Assateague Island is the largest natural barrier island ecosystem in the Middle Atlantic states region that remains predominantly unaffected by human development.
A fledgling conservation industry on Andros is dedicated to preserving the island's unique ecosystems, working in partnership with the Bahamian government (Bahamas National Trust) and such varied non-governmental organizations as The Nature Conservancy and Project AWARE of the Professional Association of Dive Instructors .
However, a large number of bird species have been seen around the islands, and many of them breed on the smaller islands of the archipelago. Insects play a large role in the ecosystem of the islands, and over 200 species have been recorded. The waters around the Falkland Islands sustain many animals, including a large number of marine mammals.
Macquarie Island is a subantarctic island in the south-western Pacific Ocean, about halfway between New Zealand and Antarctica. [1] It has been governed as a part of Tasmania , Australia, since 1880.
The Galápagos Islands and the surrounding waters represent one of the world’s most unusual ecosystems and are rich areas of biodiversity. Recently granted UNESCO World Heritage Site status, the Galápagos Marine Reserve is the largest marine reserve in a developing country and the second largest reserve in the world.
The ecosystems and wildlife found on these islands are the same as those found on their adjacent mainland areas. For example, the terrestrial habitat on Gorgona Island is tropical rainforest, similar to what is found in the Pacific lowlands of mainland Colombia.