Common White Ash vs Oso Polar

Bersama tysoniana compared with Ursus maritimus

Key Differences

• Common White Ash is Least Concern while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Common White Ash	Oso Polar
Kingdom	Plantae (planta)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (cordados)
Class	Magnoliopsida (Dicots)	Mammalia (mamíferos)
Order	Geraniales (Geraniales)	Carnivora (carnívoros)
Family	Melianthaceae	Ursidae (Bears)
Genus	Bersama	Ursus (Bears)
Species	Bersama tysoniana	Ursus maritimus

Conservation Status

Common White Ash

LC — Least Concern

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common White Ash

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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 White Ash

<em>Bersama tysoniana</em>, commonly known as the common white ash or Tyson's bersama, is a tree in the family Melianthaceae, native to southern Africa. It is classified as Least Concern by the IUCN. The species is found in forest margins, riverine woodland, and moist montane habitats within its native range on the African continent, where it typically grows as a small to medium-sized tree. <em>Bersama tysoniana</em> produces pinnately compound leaves with numerous leaflets, small white to cream-colored flowers arranged in terminal racemes, and distinctive capsular fruits that split to reveal seeds with fleshy orange-red arils. The arils are attractive to birds, which serve as the primary seed dispersers, facilitating natural regeneration within forest ecosystems. The wood is reportedly hard and durable, and the plant has been used in traditional medicine within its native range. Geographic range details and associated country records for this particular entry remain incompletely documented in available data sources. Biological traits including average lifespan, tree height, and mass remain poorly documented in standardized databases. Ecologically, <em>Bersama tysoniana</em> contributes to the structural complexity of southern African forest edge communities and supports a range of frugivorous birds and invertebrates through its fruit production, playing a modest but consistent role in forest food webs and seed dispersal networks.

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.