Map with Palawan Island highlighted in red
|Location||South East Asia|
|Adjacent bodies of water|
|Area||12,188.6 km2 (4,706.0 sq mi)|
|Length||425 km (264.1 mi)|
|Width||40 km (25 mi)|
|Coastline||1,354.1 km (841.4 mi)|
|Highest elevation||2,085 m (6841 ft)|
|Highest point||Mount Mantalingajan|
|Capital and largest city||Puerto Princesa (pop. 255,116)|
|Population||886,308 (2015) |
|Pop. density||72.7/km2 (188.3/sq mi)|
Palawan is the largest island of the province of Palawan in the Philippines and the fifth largest island of the country. The north west coast of the island is along the South China Sea, while the south east coast forms part of the northern limit of the Sulu Sea. Much of the island remains traditional and is considered by some as under-developed. Abundant wildlife, jungle mountains, and some white sandy beaches attract many tourists, as well as international companies looking for development opportunities.
As of 2016, the main island of Palawan was rated the "Most Beautiful Island in the World" as voted by respective readers of rival travel publications Conde Nast Traveller and Travel + Leisure. It is the second year running that Palawan has won the Conde Nast Traveller award, as well as the second time in four years that it has occupied Travel + Leisure's top spot (2013). El Nido, located at the northern tip of the island, is also currently rated the "Most Beautiful Beach in the World" by Conde Nast Traveller readers. In 2007, National Geographic Traveler magazine rated Palawan the best island destination in East and Southeast Asia region, having:
... incredibly beautiful natural seascapes and landscapes. One of the most biodiverse (terrestrial and marine) islands in the Philippines. The island has had a Biosphere Reserve status since early 1990s, showing local interest for conservation and sustainable development."— The National Geographic
1 city and 12 out of the 23 municipalities of the Province of Palawan are on this island. Iwahig Prison and Penal Farm, one of seven operating units of the Bureau of Corrections, is located on the island.
The entire length of the island forms a mountain range, with a peak altitude of 2,086 meters (6,844 ft) at Mount Mantalingajan. Other significant peaks include Mount Gantung (1,788 meters (5,866 ft)) in Batazara and Victoria Peak (1,726 meters (5,663 ft)) in Narra.
The geology of Palawan is, in many ways, unlike other parts of the Philippines. The crust of northeast Palawan was derived from the southeast edge of the continental crust of China, part of the Eurasian Plate. It is the exposed portion of a microcontinent that drifted southward with the opening of the South China Sea. This microcontinent also forms the shallow water north of Palawan in the Reed Bank-Dangerous Ground area of the southern South China Sea. Some of the oldest rocks of the Philippines are found in northeast Palawan (Permian-Carboniferous age). Southwest Palawan exposes primarily ophiolitic material (rocks derived from uplifted oceanic crust and mantle). This 34 Myr old (latest Eocene-earliest Oligocene) ophiolite appears to have been thrust upon the continental crust as well as the older, Cretaceous ophiolitic and sedimentary units. The transition from "oceanic" ophiolite in the southwest to "continental"-type rocks in the northeast occurs in the area of central Palawan around Ulugan Bay and the Sabang area. In the southern coasts of Ulugan Bay and Sabang Beach, are several exposures showing that the Palawan ophiolite has been thrust on to the continent-derived clastic rocks ("Sabang thrust").
The Palawan Trough is an area of deeper water adjacent to the north coast of Palawan in the South China Sea. The Palawan trough is thought to be due to downbending of the continental crust due to the weight of the ophiolite thrust sheet.
Further north, around the Malampaya Sound area and up to the El Nido area, one finds older (Triassic-Jurassic) deep marine chert and limestone. The limestone forms spectacular karst terrain. These units are part of the microcontinent ("North Palawan Block") although they are deep marine rocks marginal to the continental crust. They were accreted to the Chinese continental crust in the Mesozoic at a time when an Andean-type subduction zone existed in southeast China.
Intruding these rocks in central Palawan (Cleopatra's Needle area) and northern Palawan (Mount Capoas or Kapoas area) are young granite bodies (true granite to granodiorite). The Kapoas intrusion is of Miocene age (13-15 million years old based on zircon and monazite U-Pb dating). In the Taytay area of northern Palawan, a young basaltic cinder cone is another manifestation of young magmatic activity. The granitic magmatism and basaltic magmatism are both expressions of what has been identified as a widespread post-South China Sea spreading magmatism that has affected many areas around the South China Sea.
Flora and fauna
Two articulated phalanx bones of a tiger, besides another phalanx piece, were found amidst an assemblage of other animal bones and stone tools in Ille Cave near the village of New Ibajay. The other animal fossils were ascribed to macaques, deer, bearded pigs, small mammals, lizards, snakes and turtles. From the stone tools, besides the evidence for cuts on the bones, and the use of fire, it would appear that early humans had accumulated the bones. Additionally, the condition of the tiger subfossils, dated to approximately 12,000 to 9,000 years ago, differed from other fossils in the assemblage, dated to the Upper Paleolithic. The tiger subfossils showed longitudinal fracture of the cortical bone due to weathering, which suggests that they had post-mortem been exposed to light and air. Tiger parts were commonly used as amulets in South and Southeast Asia, so it may be that the tiger parts were imported from elsewhere, as is the case with tiger canine teeth, which were found in Ambangan sites dating to the 10th to 12th centuries in Butuan, Mindanao. On the other hand, the proximity of Borneo and Palawan also makes it likely that the tiger had colonized Palawan from Borneo before the Early Holocene.
Using the work of Von den Driesch, all chosen anatomical features of appendicular elements' anatomical features which were chosen, besides molars, were measured to distinguish between taxa that had close relationships, and see morphometric changes over ages, though not for pigs or deer. For the latter two, cranial and mandibular elements, besides teeth of deer from Ille Cave were compared with samples of the Philippine brown deer (Cervus mariannus), Calamian hog deer (Axis calamianensis), and Visayan spotted deer (Cervus alfredi), and thus two taxa of deer have been identified from the fossils: Axis and Cervus. Remains of pigs were compared with the Eurasian (Sus scrofa) and Palawanese wild boar (Sus ahoenobarbus). It is known that the Eurasian wild boar was imported as a domesticate to the islands from mainland Southeast Asia to the islands during the Terminal Holocene.
Throughout deposits of the Terminal Pleistocene and early Holocene and Terminal Pleistocene at Ille Cave, elements of deer skeletons are regular, gradually becoming less before vanishing in the Terminal Holocene. One 'large' and one 'small' taxon can be easily differentiated by the significant change in size observed in the postcranial elements and dentition. From comparisons of the mesial-distal and labio-lingual measurements of individual fossil teeth and mandibular toothrows with those of surviving deer taxa in the Philippines and other Southeast Asian islands, it appears that the Calamian hog deer is most plausible candidate for the small taxon. The hog deer exists in forest edges and open grassland habitats on the islands of Culion and Busuanga, which during the Pleistocene were part of the landmass of Greater Palawan, but not on Palawan itself nowadays. As for the 'large' taxon of deer found in the Palawanese fossils, the Philippine brown deer from Luzon appears to be closely matched to them, from dental biometric comparisons which are similar between the latter and extant members of the genus Cervus or Rusa, particularly the Philippine brown deer (C. mariannus) and spotted deer (C. alfredi). However, the Philippine brown deer shows significant variation across its range, with populations on Mindanao Island being smaller than those of Luzon. Thus, it is possible that the overlap between the Luzonese brown deer and the archaeological material is coincidental, and that the fossils could belonged to another species of Cervus that had occurred in Palawan, with the taxonomic classification being unresolved. The Philippine brown deer from Luzon appears to be closely matched to the 'large' taxon of deer found in the Palawanese fossils, from dental biometric comparisons which are similar between the latter and extant members of the genus Cervus or Rusa, particularly the Philippine brown deer (C. mariannus) and spotted deer (C. alfredi). However, the Philippine brown deer shows significant variation across its range, with populations on Mindanao Island being smaller than those of Luzon. Thus, it is possible that the overlap between the Luzonese brown deer and the archaeological material is coincidental, and that the fossils could belonged to another species of Cervus that had occurred in Palawan, with the taxonomic classification being unresolved. Otherwise, members of the genus Cervus are no longer seen in the region of Palawan.
In April 2013, a fishing vessel loaded with illegally poached animals ran aground on a coral atoll off the coast of Palawan Island.
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