On Aug. 01, 2007, MPT (Ministry of Posts and Telematics) issue the stampset | |||||||||||||||||||||||||||
Animals in Con Dao national park (Dugong) | |||||||||||||||||||||||||||
(VN Code: 961) | |||||||||||||||||||||||||||
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The dugong (Dugong dugon) is a large marine mammal which, together with the three species of manatee, is one of four extant members of the order Sirenia, Like all modern sirenians, the dugong has a fusiform body with no dorsal fin or hind limbs, instead possessing paddle-like forelimbs used to maneuver itself. It is easily distinguished from the manatees by its fluked, dolphin-like tail, but also possesses a unique skull and teeth. The dugong is heavily dependent on sea grasses for subsistence and is thus restricted to the coastal habitats where they grow, with the largest concentrations typically occurring in wide, shallow, protected areas such as bays, mangrove channels and the lee sides of large inshore islands. Its snout is sharply down turned, an adaptation for grazing and uprooting benthic sea grasses. The dugong''s current distribution is reduced and disjunctive, and many populations are close to extinction. The IUCN lists the dugong as a species vulnerable to extinction. To further propagandize for the conservation and protection of this endangered mammal, On the first of August, 2007, the Ministry of Posts & Telematics (MPT) issues the stampset: “Animals in Con Dao National Park (Dugong)” consisting of 04 values with their denominations of 800d; 1,000d; 7,000d and 9,000d respectively. Due to the hunting and environmental fluctuations, the Dugong population presently remains very low. Con Dao National Park has been taking positive measures to protect this valuable and rare mammal. | |||||||||||||||||||||||||||
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| FIRST DAY COVER (FDC) | |||||||||||||||||||||||||||
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| MAXICARD | |||||||||||||||||||||||||||
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Thứ Ba, 6 tháng 1, 2009
VN CODE : 961 - 2007
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