Title Forest Animals

  • Tottori
  • Shimane
Topic(s):
$SETTINGS_DB.genreMap.get($item) National Parks/Quasi-National Parks Public Works & Institutions (Museums, etc.)
Medium/Media of Use:
App, QR code, etc.
Text Length:
≤250 Words
FY Prepared:
2019
Associated Tourism Board:
Daisen-Oki National Park

森の生きもの


陽気なさえずりで自らの存在を知らせる三瓶山の鳥たちとは異なり、人前に姿を現さない山の生き物たちがたくさんいる。多くは夜行性で日中は眠っており、シカやツキノワグマは山の奥深くにいることで人を避けている。

三瓶山地域の生物の多くが日本固有種だ。姫野ヶ池近辺でよくみられるモリアオガエルは、水面上にせり出した木の枝の上に泡で包まれた卵塊を産みつける。孵化したオタマジャクシは泡の塊から放たれ池へと落ちる。別の固有種であるテンは、白っぽいオレンジの毛皮を持つ雑食性の哺乳類だ。木登りが得意で日中は樹洞内の巣で眠っている。夜になると、鳥や齧歯類を狩るが、昆虫や木の実も食べる。

三瓶山の森には他にも多くの生物が棲んでいる。たとえばキツネは多くの国で共通であるように、ずるがしこく立ち回る。欧州やアジアの一部に生息する夜行性のフクロウは、獲物が立てる音をしっかりとキャッチできるように顔が曲線状になっていて、音もたてずに獲物を狩る。

ツキノワグマも、島根県を含む中国地方の人里離れた森に生息している。一般に他の熊よりも小さいが、名前の通り、白い三日月状の斑紋が胸の部分にある。それがツキノワグマの名前の由来である。主に草、果実、木の実、小動物、昆虫、動物の死骸などを食べる。冬の間ツキノワグマは大きな樹洞や川岸の土手に掘られた穴で冬眠する。


Forest Animals


Unlike Mt. Sanbe’s songbirds, which announce their presence with cheerful warbling, many denizens of the mountain rarely show themselves to visitors. A great number are nocturnal and sleep during daylight hours, and the sika deer and Asian black bear avoid people by keeping to the more remote areas of the mountains.

Many of Sanbe’s local species are endemic to Japan. The forest green tree frog, often found near Himenoga Pond, produces a spongy white foam that it uses to suspend its eggs from the tips of tree branches hanging over the water. Once the tadpoles hatch, they wriggle free and fall into the pond. The Japanese marten, another endemic species, is a small, omnivorous mammal with pale orange fur. An excellent climber, it sleeps in the hollows of trees during the daytime. At night, it hunts mainly birds and small rodents, but also eats insects and fruit.

There are also many species living on Mt. Sanbe that are found in forests elsewhere. The red fox, for instance, is common to many nations—as is its reputation as a clever trickster. The Ural owl, found in Europe and parts of Asia, is a soundless nocturnal predator whose concave facial discs help to amplify the sounds made by its prey.

The Japanese black bear is another reclusive inhabitant of the forests of the Chūgoku region of Japan. Generally smaller than other bears in its genus, it has a white, crescent-shaped patch of fur on its chest. This is the origin of its Japanese name, “moon bear” (tsuki no waguma). It eats mostly grasses, berries, and nuts, and will also eat small animals, insects, and carrion. During the winter, Japanese black bears hibernate in large, hollow trees or holes dug in riverside embankments.


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