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This species is one of the world's largest living lemurs, with a total adult length of approximately 105 centimetres (41 inches), half of which is tail. Diademed sifakas are polygynous and have a hierarchy system for mating, whereby only the dominant male seems to mate with the females. The mother also provides protection, grooming, and socialization for her young. The young may nurse for as long as until the age of 2, however, by this time their mother's milk is not a substantial part of their nutrition. All rights reserved. 英名：Diademed Sifaka Hunting for food This communication is of prime importance between mothers and their young, and between mates. © 2017 WGBH Educational Foundation. Aside from vocal and scent communication, these lemurs use tactile communication: grooming, play, and aggression. Their faces are dark grey to black and appear bare but are covered with very fine fur. Males weigh between 7 and 14 lb (3-6.5 kg), while females weigh between 7 and 15 lb (3-6.7 kg). Illegal rum production (necessitating the planting of sugar cane fields and destructive utilization of sifaka food trees). RARE: CREATURES OF THE PHOTO ARK is a production of WGBH Boston and So World Media, LLC in association with National Geographic Channels, and made possible with funding from the Corporation for Public Broadcasting, The Kendeda Fund, the Candis J. Stern Foundation, and public television viewers. The diademed sifaka is one of the largest species of lemur. Encourage others in your neighborhood to do the same. A Diademed sifaka group may travel several hundred meters over a day, between high up in the canopy to low down in the under-storey, searching for food. They are also hunted as a food source, even in the protected areas. Milne-Edwards’s sifaka is black or brown, generally with a white patch on the back and flanks, whereas the … Take a photo of a creature in your neck of the woods. Diademed sifakas use two alarm vocalizations to warn of predators. The season for mating occurs in the summer months of December and January. Groups have distinct territories of 20 to 30 ha, and mark them by the use of scent. Sifaka lemurs get their name from an alarm call, sounding like "shih-fak". 英名：Diademed Sifaka 学名：Propithecus diadema 分類：インドリ科 シファカ属 生息地：マダガスカル 保全状況：CR〈絶滅危惧ⅠA類〉 特に地上で独特な移動を見せるベローシファカ。シファカというその名前の由来も独特です。... 霊長類の多様な移動方法を動画付きで解説しています。四足歩行以外にもブラキエーションやヴァーティカ……... http://sarucom.com/wp-content/uploads/2019/06/sarucom.png. Widely considered as the most beautiful of Madagascan primates, the Diademed sifaka has a bare, black or dark gray face framed with white hair, with a patch of black on the top of its head. Subdominant males may act aggressively toward the dominant male and try to stop him from mating. Diademed sifakas reach maturity when they are four years old for females, whereas males are mature at five years old. Diademed sifakas are almost totally arboreal, but may forage or play on the ground. Females may only be sexually … 学名：Propithecus diadema These animals are diurnal and social, and live in groups numbering 2 to 9 animals. They have reddish-brown eyes and their cheeks, forehead, and throat are covered in white fur. Today this species’ numbers are decreasing and it is classified as Critically Endangered (CR) on the IUCN Red List. Widely considered as the most beautiful of Madagascan primates, the Diademed sifaka has a bare, black or dark gray face framed with white hair, with a patch of black on the top of its head. "Tzisk-tzisk-tzisk" is the ground predator call and for the aerial predator it is a "honk-honk-honk". Its head resembles a ‘diadem’ or ornamental headband worn by royalty, and is the source of its English name. It used to be believed that females remained within their birth group, whereas males move into groups nearby, but more recent studies report that females may move between groups as well. Reduce what you buy, reuse and repurpose what you do buy, and recycle what can't be repurposed. Diademed sifakas are under threat by habitat destruction, which occurs mainly through slash-and-burn agriculture but also because of logging. 2. Including: Safari Slideshow & Creature Cards. Along with several reserves being established in Madagascar's remaining forests, this has helped the economy of a very poor nation. All sifakas can jump very well, up to distances of thirty feet. Diademed Sifaka on The IUCN Red List site -, https://en.wikipedia.org/wiki/Diademed_sifaka, http://www.iucnredlist.org/details/18358/0. It occurs in montane rainforests and primary lowland. Show your support by posting your animal pic using the hashtag #RarePBS. When threatened this sifaka makes a warning call that has been likened to a ‘kiss-sneeze’. The Diademed sifaka is an herbivore, eating only leaves, fruit, flowers, and young shoots. The Diademed Sifaka (Propithecus diadema), also called the diademed simpona, is an endangered species of sifaka, one of the lemurs endemic to certain rainforests in eastern Madagascar. These groups may have several breeding females and several breeding males, along with sub-adults and infants. Vocalizations are mainly used to maintain group cohesion. Males do scent marking twice as often as the females, and the frequency doubles near the territorial boundaries. Males measure 14 to 19 in (37-50 cm) in length, while females range from 14 to 20 in (37-53 cm). It may use this warning call when it spots its predators, such as the fossa or Nile crocodiles, to alert its social group, or the predator itself. This rare and endemic sifaka, along with the rest of the unique flora and fauna in Madagascar, has resulted in much ecotourism for the island. As frugivores, Diademed sifakas have a role in dispersing seeds, and, as prey items, they may have an impact on predator populations. Meet the rare diademed sifaka and browse photographs by Joel Sartore. Members of the group may be related, especially the females. 生息地：マダガスカル 分類：インドリ科 シファカ属 The larger diademed sifaka (P. diadema), silky sifaka (P. candidus), and Milne-Edwards’s sifaka (P. edwardsi) live in the rainforests of eastern Madagascar. The diademed sifaka live in female dominated multi-male/multi-female groups of 2-8 individuals, in territories of 20-80ha. Plant local plants in your garden to help bees, birds, and other pollinators. In addition to its unmistakable appearance, this lemur is also known for its large size, being the second largest lemur alive today after the indri. Watch full episodes of RARE: Creatures of the Photo Ark online now. On the ground, their movement is leaping sideways on their back legs. Its head resembles a ‘diadem’ or ornamental headband worn by royalty, and is the source of its English name. Diademed sifakas are large lemurs, the smallest of them being the subset group found in the Tsinjoarivo region. 保全状況：CR〈絶滅危惧ⅠA類〉, このサルは、ぱっと見王冠をつけているみたいというだけで、その名に値しないような気もしますが、実はこのサルが1番であることもあるのです。, 例えば、その大きさ。ダイアデムシファカは、体長45～55㎝、体重5～7㎏、しっぽの長さは40～55㎝で、メスの方が若干大きくなります。, また、シファカのなかまの中でいえば、このサルは最も大きい種になり、あのベローシファカの2倍以上の体重を誇ります。, 次に、その色。ダイアデムシファカは、白と黒、そしてきれいな薄いオレンジ色の毛におおわれています。, 下の動画でも見ることができますが、木に垂直にしがみつき、木から木へ強靭な後ろ脚を使いジャンプして移動します（ヴァーティカル・クリンギング・アンド・リーピング）。, また、地上を移動するときは、サイドステップを踏むようにジャンプしながら移動します。, 種子の中には毒であるアルカロイドを含むものもありますが、なんてことなく食べちゃいます。, また、彼らの社会は母系社会で、オスの方が成長すると群れを離れますが、メスが離れることもあるようです。, においでマーキングされたなわばりをめぐる闘争は激しくないようですが、先ほど出てきたインドリと比べるとより活発になわばりを防衛するようです。, メスは1年に1日だけ交尾を受け入れると考えられており、最も優位なオスだけが交尾を独占することが多いようです。, ダイアデムシファカは、生息地である森林の減少や肉目的の狩猟などにより個体数を減らしています。, また、群れの数が小さくなったことで、捕食者であるフォッサなどからの脅威が高まっているようです。, マダガスカルは特に絶滅危惧種が多く、生息する種の実に85％以上が絶滅を危惧されています。, マダガスカルはサルの宝庫なので、同じ場所でも様々な種を見ることができると思います。. Females are slightly larger than males. Diademed sifakas inhabit eastern Madagascar, from the Mananara Nord River, to the Mangoro and Onive Rivers in the south. Slash-and-burn agriculture Diademed sifakas (P. diadema) are the largest species of the genus Propithecusand have long, silky fur that is grey on their back and shoulders. The gestation period is about six months, and one or two offspring are born in the winter. Diademed sifakas are subject to predation by avian predators and probably fossas. According to the Wikipedia resource, the total Diademed sifaka population size is 6,000 - 10,000 individuals.
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