Protecting our island biodiversity
BY: ERROL A. GATUMBATO
The whole world commemorated the International Biodiversity Day last May 22. The United Nations General Assembly declared this event in 2000 to increase awareness and understanding on biological diversity and its associated issues and challenges.
This year’s celebration focused on the theme, “Island Biodiversity”, to coincide with the designation by the UN of 2014 as the International Year of Small Developing States. This is also to strengthen the implementation of the Convention on Biological Diversity.
The theme is very relevant to the Philippines, because it is composed of numerous islands and islets, a good number of which are considered smaller islands, but yet, they contain unique ecosystems, habitats, flora and fauna. Many of our small islands have exceptional and beautiful features that are worth protecting for recreational, educational and scientific activities, while at the same, sustaining whatever ecological and environmental services they offer to the people. However, there are also small islands that have been subjected to extensive development for tourism, logging and mining, thereby altering their natural landscape and seascape.
It is also important to note that many of our small islands harbor endemic species, meaning some species are only restricted to a particular island and could not be found elsewhere. For instance, Negros Island has numerous island endemic species, such as the Negros fruit dove, which is now suspected to be extinct, since it has never been recorded after its discovery in 1953 at the Mount Kanla-on Natural Park.
Although Cebu has suffered intensive deforestation, it is very important in terms of biodiversity, because it has Cebu flower picker, Cebu hawk owl, Cebu cinnamon tree and Cebu black shama, that are only known to occur in this island.
The Ilin Island in San Jose, Occidental Mindoro, is the only locality where the Ilin Bushy-tailed cloud rat, or the Hairy-tailed cloud rat, has been recorded. Similarly, the Sulu bleeding heart pigeon is only restricted in Tawi-tawi, while Camiguin has also its own endemic species, such as the Camiguin hawk owl. The Calamianes in Palawan has several endemic species, the most popular of which is the Calamian deer. The island of Mindoro, although it is relatively a larger island, contains a variety of endemic species, like the Mindoro bleeding heart pigeon and the famous Tamaraw, which is considered as the largest mammal recorded in the country. Polillo Islands in Quezon province has several endemic sub-species of birds. The Dinagat cloud rat is only found in Dinagat Island in Mindanao.
The unique island endemism of the Philippines makes our country as one of the mega-diverse countries on biodiversity. However, most, if not all, of our island endemic species are already listed as threatened species in the Red List of Threatened Species of the IUCN-World Conservation Union and the Department of Environment and Natural Resources.
The likely extinction of island endemic species may happen once the remaining habitats in the islands where they occur are further destroyed. It is therefore very necessary that the remaining natural habitats shall be protected and those degraded ones restored.*
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