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Lecture 7 - 14.10.10

Lecture 7 - 14.10.10 - 14th October 2010 SEAS 1 Lecture 7...

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14 th October 2010 SEAS 1 – Lecture 7 Biodiversity and Environmental Issues in SE Asia SE Asia’s Natural Resources and Biodiversity: An Overview Major Natural Resources: o Water : hydropower, agriculture, fishing o Trees : timber, construction o Minerals : Biodiversity o Diversity of species found in the area : Javan rhino (Vietnam), Orangutans (Borneo), Mekong river dolphin, Sumatran tiger, komodo dragon (Indonesia) o Island discoveries Discovering relatively large creatures : Torch monitor (Eastern Indonesia, 2009), varanus bitatawa (Luzon, Philippines, 2006?) Even large species just being discovered in recent times Lots of territory that is still preserved/isolated Discoveries often made in island parts of SE asia o Mainland discoveries (1994) Muntjac discovered in N. Vietnam (sort of “lost world”) Northern buff-cheeked gibbon Homo Floresiensis (Indonesia) – the “hobbit people” that lived 12,000 years ago and were only 3 ft tall; discovered in a cave a few islands east of Bali/Lombok Illustrates that there are other isolated areas in mainland areas that still have important areas yet to be discovered Biospheres in less populous islands/isolated areas on the mainland Challenges to Habitat and Species Destruction of habitats (Major threats) o Arrival of the modern era – colonial powers : large-scale exploitation of natural resources, hunting to the point of extinction (the beginning of the end), extracting as much as possible to sell on the global market o Use of technology : to cut down large areas of forest, tap into mineral deposits, kill animals on large scales, major shift in resource exploitation o Population pressure : SE Asian population skyrocketed over the 20 th century so they are pushing further into the unpopulated areas. o Warfare = rapid decline of species in SE Asia WWII, Vietnam war, Philippine War, Burmese Civil War Had been warfare in the pre-colonial era; however, in 20 th century, the scale has been much larger, weaponry is more intense, technology of warfare is much more dangerous to the environment. Aerial warfare during Vietnam War: millions of tons of ammo dropped onto forest villages Excessive use of chemicals defoliates the tress and has a lasting environmental legacy of contaminating soil for generations: infects future crops and nourishment for species.
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Environmental Consequences of Development/Resource Exploitation Seas : o
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Lecture 7 - 14.10.10 - 14th October 2010 SEAS 1 Lecture 7...

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