Blacksburg Salamander

plethodon jacksoni

The Blacksburg Salamander (Plethodon jacksoni) is a fascinating and elusive woodland amphibian that calls the damp, forested slopes of the Appalachian Mountains home. As a member of the lungless salamander family (Plethodontidae), this remarkable creature breathes entirely through its moist skin and the lining of its mouth, completely lacking lungs or gills in its adult stage. This unique physiological adaptation ties it permanently to high-humidity microhabitats, making the damp undersides of decaying logs and mossy rocks its perfect sanctuary. Although it spends much of its life hidden from human eyes, catching a glimpse of the Blacksburg Salamander is a special treat for nature lovers exploring eastern North American forests. Their secretive nature and strict reliance on pristine, undisturbed woodlands make them excellent indicators of forest health, reminding us of the delicate, hidden ecosystems that thrive beneath the forest floor.

生息地: Found primarily in moist, mature deciduous and mixed forests of the Appalachian region, typically hiding beneath decaying logs, thick leaf litter, and moss-covered rocks.

外見

This medium-sized, slender salamander typically features a dark brown to blackish base coloration, elegantly speckled with white, silver, or faint brassy flecks along its back and sides. Its belly is usually lighter, often exhibiting a mottled or solid grayish hue. Like most Plethodon species, it has smooth, moist skin, distinct vertical costal grooves running down its flanks, and prominent, slightly bulging eyes adapted for low-light vision. It lacks the bright red or orange dorsal stripes seen in some of its close relatives, relying instead on its dark, starry pattern to camouflage perfectly against dark, wet soil and shadowy leaf litter.

界Animalia門Chordata綱Amphibia目Caudata科Plethodontidae属Plethodon

Blacksburg Salamander

カテゴリ

両生類

レア度

Common

危険度

1/5 · 非常に低い

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おもしろい事実

Because they breathe entirely through their skin, Blacksburg Salamanders will quickly suffocate if their skin dries out, which is why they rarely venture out on warm, sunny days.

During extreme summer droughts, they can migrate vertically deep underground, utilizing root channels and rock crevices to find stable moisture levels.

They bypass the aquatic tadpole stage completely; females lay eggs in moist, hidden terrestrial nests, and fully formed miniature salamanders hatch directly from the eggs.

This salamander belongs to an ancient evolutionary lineage that survived the brutal Pleistocene ice ages by taking refuge in the deep, unglaciated valleys of the Appalachian Mountains.

特殊能力

Lacking lungs completely, this salamander absorbs oxygen and releases carbon dioxide entirely through its highly permeable, moist skin.

It utilizes specialized nasolabial grooves—tiny slits running from its nostrils to its upper lip—to detect chemical cues from prey and potential mates.

When threatened or grabbed by a predator, it can voluntarily drop its tail to create a wriggling distraction, eventually regenerating a new one.

サイズと詳細

長さ: 10-16 cm
体重: 0.005-0.015 kg
寿命: 10-20 年
一度の産卵数: 10-30
抱卵期間: 60-90 日

食性と食事

It feeds entirely on a diverse array of small invertebrates found on the forest floor, actively hunting them during humid, wet nights.

年齢による違い: Juveniles consume much smaller micro-invertebrates like tiny mites and springtails, shifting to larger prey such as beetles and spiders as they grow.

主な食物

Ants
Beetles
Spiders
Springtails
Mites

採餌方法

Foraging

生態系とのつながり

eaten by

Ring-necked Snake

Diadophis punctatus

A common predator that actively hunts small woodland salamanders under leaf litter.

hunts

Eastern Subterranean Termite

Reticulitermes flavipes

An abundant invertebrate prey hunted by the salamander within rotting logs.

competitor

Eastern Red-backed Salamander

Plethodon cinereus

Competes for similar invertebrate prey and premium cover objects on the forest floor.

特徴

このオブジェクトにはまだ特徴バッジが割り当てられていません。

別名

まだ別名はありません。

コレクション

テーマが追加されると、このオブジェクトのコレクションがここに表示されます。

安全性

危険度

1/5 · 非常に低い

まだ特別な安全上の注意はありません。

よくある質問

Blacksburg Salamanderを見分けるには？

Blacksburg Salamanderを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。

Blacksburg Salamanderの長さは何ですか？

10-16 cm

Blacksburg Salamanderの体重は何ですか？

0.005-0.015 kg

Blacksburg Salamanderの寿命は何ですか？

10-20 年

Blacksburg Salamanderは何を食べますか？

It feeds entirely on a diverse array of small invertebrates found on the forest floor, actively hunting them during humid, wet nights.

Blacksburg Salamanderは通常どこに生息していますか？

Found primarily in moist, mature deciduous and mixed forests of the Appalachian region, typically hiding beneath decaying logs, thick leaf litter, and moss-covered rocks.

Blacksburg Salamanderはどのように狩りをしますか？

Foraging

Blacksburg Salamanderの一度の産卵数は何ですか？

10-30