Oso Polar vs Willow twig gall midge

Ursus maritimus compared with Rabdophaga salicis

Key Differences

Oso Polar is Vulnerable while Willow twig gall midge is Not Evaluated.

Taxonomic Classification

Rank	Oso Polar	Willow twig gall midge
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Mammalia (mamíferos)	Insecta (insecto)
Order	Carnivora (carnívoros)	Diptera (Diptera)
Family	Ursidae (Bears)	Cecidomyiidae
Genus	Ursus (Bears)	Rabdophaga
Species	Ursus maritimus	Rabdophaga salicis

Evolutionary Relationship

Oso Polar and Willow twig gall midge share a common ancestor at the Kingdom level: Animalia. (Animals)

Vista Kingdom: Animalia

Conservation Status

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Willow twig gall midge

NE — Not Evaluated

Physical Characteristics

Attribute	Oso Polar	Willow twig gall midge
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

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.

Willow twig gall midge

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

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.