A general term for animals in the genus Cercopithecus, family Cercopithecidae, order Primates, class Mammalia. There is no consensus on the classification of this genus Cercopithecus , but some say it is divided into 11 species, while others say it is subdivided into about 20 species. Native to Africa, most species live in tropical rainforests and the surrounding sparse forests, living in the trees, but one species, the savanna monkey C. aethiops , has expanded into the savanna. The distribution ranges of forest species overlap significantly, and there are known examples of interbreeding in the wild. They are slender, with most having a body length of 40 to 70 cm and a tail length of 60 to 100 cm. They have light-colored hair that grows locally on their cheeks, throat, nose, etc., and the pattern varies from species to species. They are omnivorous, eating mainly plant foods, but also insects. Although there are cases of multi-male groups of 10 to 50 individuals, a survey report from the forests of Cameroon has revealed that many species form small mono-male groups containing only one male. Groups usually have a range of 1 to 2 square kilometers and live within it. [Kenji Kawanaka] [Reference] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
哺乳(ほにゅう)綱霊長目オナガザル科オナガザル属に含まれる動物の総称。この属Cercopithecusの分類に定説はないが、11種に分類する立場と、約20種近くに細分する立場とがある。アフリカ産で、多くの種は熱帯多雨林とその周囲の疎開林に分布し、樹上生活を送っているが、ただ1種サバンナモンキーC. aethiopsはサバンナに進出している。森林性の種の分布域は互いに大幅に重複し、野生状態で種間の混血の例が知られている。体つきはほっそりとしており、体長40~70センチメートル、尾長60~100センチメートルのものが多い。頬(ほお)、のど、鼻などに明色の毛が局所的に生え、そのパターンが種ごとに異なっている。植物性食物を中心とした雑食性で昆虫も食べる。10~50頭の複雄群をつくる例もあるが、カメルーンの森林での調査報告によれば、ただ1頭の雄を含む小形の単雄群をつくる種が多いという。群れは通常1~2平方キロメートルの遊動域をもち、その中で生活している。 [川中健二] [参照項目] |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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