Alpine Shrew vs Common Earthball

Sorex alpinus compared with Scleroderma citrinum

Key Differences

• Alpine Shrew is Near Threatened while Common Earthball is Least Concern.

Taxonomic Classification

Rank	Alpine Shrew	Common Earthball
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Soricomorpha (Soricomorpha)	Boletales (Boletales)
Family	Soricidae	Sclerodermataceae
Genus	Sorex	Scleroderma
Species	Sorex alpinus	Scleroderma citrinum

Conservation Status

Alpine Shrew

NT — Near Threatened

Common Earthball

LC — Least Concern

Physical Characteristics

Attribute	Alpine Shrew	Common Earthball
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ukraine. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Earthball

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil, Chile).

Alpine Shrew

The Alpine Shrew (Sorex alpinus) is a species in the genus Sorex. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Found in Ukraine. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Earthball

<em>Scleroderma citrinum</em>, commonly known as the common earthball or pigskin poison puffball, is a widespread ectomycorrhizal fungus in the family Sclerodermataceae, classified as Least Concern by the IUCN. The species occurs across Asia, Europe, North America, and South America, typically found on forest floors, decomposing wood, and mineral-rich acidic soils in association with hardwood and conifer tree roots. Unlike true puffballs, <em>Scleroderma citrinum</em> is considered poisonous and should not be confused with edible species. Its thick, warty outer skin ranges from yellowish-brown to ochre and encloses a dark purplish-black spore mass that matures over time. The species plays an important ecological role as a mycorrhizal partner, forming mutualistic associations with the roots of oaks, beeches, pines, and other trees, facilitating the uptake of water and nutrients by host plants in exchange for photosynthetically derived carbon. Fruiting bodies typically emerge from late summer through autumn, releasing spores through irregular cracks or a central apical opening when mature. <em>Scleroderma citrinum</em> is a host for the parasitic fungus <em>Pseudoboletus parasiticus</em>, making it ecologically significant within forest fungal communities. Biological traits of this species remain poorly documented in the scientific literature.