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The Philippine deer (''Rusa marianna''), also known as the Philippine sambar or the Philippine Brown Deer, is a species of deer that is native to the forests and grasslands, on most larger islands of the Philippines,. The only major islands where it is not commonly found are in Negros, Panay, Palawan, Sulu, and the Babuyan and Batanes island groups. It is classified as Vulnerable by the IUCN due to its increasingly fragmented populations as a result of habitat loss and hunting. The Philippine deer is a medium-sized species, but is generally much smaller than its cousin, the Sambar Deer. Head-and-body length is , shoulder height is and body weight is .〔()〕 It is mostly brown in color, with the exception of the underside of the tail, which is white. Some cases in Mindanao have shown that the deer’s coat is said to be a pale, sandy grey color. The antlers of the male are quite small, usually having a length of .〔 This species can be found in a variety of habitats in the Philippines. They may be found anywhere from wooded lowlands to forested mountain slopes or places that are up to meters above sea level. The mating season commonly occurs from September to January, with females giving birth to a single fawn marked with light colored spots, that disappear after a few weeks. During the rut, females may form small groups of up to eight individuals, but the males remain solitary and are aggressive. The Philippine deer is nocturnal. Most activities are done at night while they rest in the dense forest thickets by day. They generally congregate around natural forest openings, eating grass, leaves, fallen fruits and berries.〔 The Philippine deer was introduced to Guam by the Spanish governor Mariano Tobias between 1770 and 1774 as a game species (William Edwin Safford, 1905). Although scarce in its native range in the Philippines, it is abundantly found in many areas of Guam, posing serious threats to plant communities by overgrazing. It was also introduced to Rota, Saipan, and to the United States. There is also a small free-ranging population in South Florida, below the Keys, Patahorn by Victoria Texas Coast, and the Santa Lucia Mountains of California that is descended from escapees from the nearby Hearst Ranch.〔http://www.scirecordbook.org/sambar-north-america-introduced/〕 The domesticated population did not take hold like they did in Guam.〔 ==Gallery== File:Cervus Mariannus.jpg|''Rusa marianna'' #File:Rusa marianna by Gregg Yan 02.jpg|''Rusa marianna'' in Davao on the island of Mindanao in the Philippines. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Philippine deer」の詳細全文を読む スポンサード リンク
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