Collembola vs European otter

Folsomides angularis compared with Lutra lutra

Key Differences

• Collembola is Not Evaluated while European otter is Vulnerable.

Taxonomic Classification

Rank	Collembola	European otter
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Collembola (弹尾纲)	Mammalia (哺乳動物)
Order	Entomobryomorpha (长角䖴目)	Carnivora (食肉目)
Family	Isotomidae	Mustelidae (Weasels & Otters)
Genus	Folsomides	Lutra (Otters)
Species	Folsomides angularis	Lutra lutra

Evolutionary Relationship

Collembola and European otter share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Collembola

NE — Not Evaluated

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Collembola	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Collembola

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States.

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Collembola

<em>Folsomides angularis</em>, commonly referred to as Collembola in reference to its broader taxonomic order, is a springtail species belonging to the genus <em>Folsomides</em>. Springtails are among the most abundant hexapods in terrestrial ecosystems, playing important roles in soil decomposition and nutrient cycling. This species has been documented in Europe, with records from Denmark, Norway, and Sweden, as well as North America, where it is known from the United States. It typically inhabits soil, leaf litter, and decaying organic matter, and is capable of tolerating a range of environmental conditions. Springtails of this group are detritivores, feeding on decomposing plant material, fungal hyphae, and microorganisms, though specific dietary data for <em>Folsomides angularis</em> are not detailed in current records. The species has not been formally assessed for conservation status. Biological traits of this species remain poorly documented in the scientific literature. Its small body size and cryptic lifestyle make detailed ecological study challenging.

European otter

欧洲水獭（Lutra lutra）是一种纤细的半水生鼬科动物，分布于欧洲和亚洲的清洁河流、溪流和海岸线。欧洲水獭体长可达1.3米，是技术娴熟的捕鱼者，利用敏感的胡须探测猎物的动向。它们需要鱼类丰富的清洁水域，是淡水生态系统健康状况的指示物种。曾因狩猎和污染在西欧几近灭绝，随着水质改善，种群数量已显著恢复。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden