Common sawfly vs Oso Polar

Allantus basalis compared with Ursus maritimus

Key Differences

• Common sawfly is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Common sawfly	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (artrópodos)	Chordata (cordados)
Class	Insecta (insecto)	Mammalia (mamíferos)
Order	Hymenoptera (himenópteros)	Carnivora (carnívoros)
Family	Tenthredinidae	Ursidae (Bears)
Genus	Allantus	Ursus (Bears)
Species	Allantus basalis	Ursus maritimus

Evolutionary Relationship

Common sawfly and Oso Polar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common sawfly

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common sawfly	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Common sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Oso Polar

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common sawfly

<em>Allantus basalis</em> is a sawfly species within the family Tenthredinidae, order Hymenoptera, native to temperate regions of North America and Scandinavia, including records from Canada, Norway, Sweden, and the United States. As a member of the subfamily Allantinae, this species is part of a broadly distributed group of plant-associated insects. Adults are typically small, dark-bodied insects resembling stout wasps, and larvae are known to feed on the foliage of their specific host plants, though the precise host associations for this species remain incompletely characterized in the literature. <em>Allantus basalis</em> inhabits woodland margins, shrubby areas, and vegetated habitats across its range where suitable host plants occur. The species has not been assessed by the IUCN, and its conservation status is therefore listed as Not Evaluated. Biological traits for this species remain poorly documented in the scientific literature, including data on average lifespan, body size, weight, and specific dietary composition. Population trends are currently unknown, and the species does not appear to face significant recognized threats at this time.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway