Alpine Shrew vs Cobweb spider

Sorex alpinus compared with Enoplognatha thoracica

Key Differences

  • Alpine Shrew is Near Threatened while Cobweb spider is Vulnerable.

Taxonomic Classification

Rank Alpine Shrew Cobweb spider
Kingdom same Animalia (Animals) Animalia (Animals)
Phylum Chordata (Chordates) Arthropoda (Arthropods)
Class Mammalia (Mammals) Arachnida (Arachnids)
Order Soricomorpha (Soricomorpha) Araneae (Araneae)
Family Soricidae Theridiidae
Genus Sorex Enoplognatha
Species Sorex alpinus Enoplognatha thoracica

Evolutionary Relationship

Alpine Shrew and Cobweb spider share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alpine Shrew

NT — Near Threatened

Cobweb spider

VU — Vulnerable

Physical Characteristics

Attribute Alpine Shrew Cobweb spider
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.

Cobweb spider

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Cobweb spider

Enoplognatha thoracica is a slender cobweb spider in the family Theridiidae, a widespread group of three-dimensional web-building spiders found across the temperate regions of Europe and North America. This small spider, typically measuring 3–5 millimeters in body length, constructs irregular, tangled cobwebs in low vegetation, hedgerows, meadow margins, and scrubby habitats where it captures small flying and crawling arthropods. The body is pale yellowish-brown to creamy white with darker markings on the abdomen, and the legs are long and slender relative to body size, adapted for navigating the three-dimensional structure of its web. Like other theridiids, Enoplognatha thoracica uses a gum-foot trap technique in which sticky vertical threads attached to the substrate at their lower ends snap insects upward when disturbed, immobilizing prey effectively. The species occupies a range spanning much of Europe eastward into temperate Asia and has established populations in parts of North America, likely through accidental human-mediated dispersal. Females produce egg sacs that are guarded within the web until hatching. The species is associated with disturbed and edge habitats and tolerates moderate agricultural landscapes. It is classified as Vulnerable by some assessments, reflecting localized population pressures from habitat loss and intensification of land use in parts of its range, though other evaluations consider it more broadly secure.

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