Common Cavalier vs ハイイロイワシャコ

Melanoleuca polioleuca compared with Alectoris graeca

Key Differences

• Common Cavalier is Least Concern while ハイイロイワシャコ is Near Threatened.

Taxonomic Classification

Rank	Common Cavalier	ハイイロイワシャコ
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Chordata (脊索動物)
Class	Agaricomycetes (真正担子菌綱)	Aves (鳥類)
Order	Agaricales (ハラタケ目)	Galliformes (キジ目)
Family	Tricholomataceae	Phasianidae
Genus	Melanoleuca	Alectoris
Species	Melanoleuca polioleuca	Alectoris graeca

Conservation Status

Common Cavalier

LC — Least Concern

ハイイロイワシャコ

NT — Near Threatened

Physical Characteristics

Attribute	Common Cavalier	ハイイロイワシャコ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Cavalier

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Norway, and Sweden.

ハイイロイワシャコ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (8 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Cavalier

<em>Melanoleuca polioleuca</em>, commonly known as the common cavalier, is a fungal species with documented occurrences in Belgium, Norway, and Sweden. It typically inhabits forest floors, decomposing wood, and soil, often emerging in temperate woodland environments where organic matter is abundant. The species is classified as Least Concern on the IUCN Red List, indicating that it is not currently facing significant conservation threats at a global level. Common cavalier belongs to the genus <em>Melanoleuca</em> within the family Tricholomataceae. It is a saprotrophic mushroom that typically produces medium-sized fruiting bodies with pale or grayish caps and white gills, often found growing singly or in small groups in deciduous and mixed forests. As a decomposer, the species plays an important role in nutrient cycling within its ecosystem. Biological traits such as average lifespan, cap diameter, and biomass of this species remain poorly documented in the scientific literature. Its distribution across northern Europe suggests adaptation to cool temperate woodland conditions.

ハイイロイワシャコ

Rock Partridge（Alectoris graeca）は IUCN レッドリストで準絶滅危惧（NT）に分類されている。絶滅危惧の基準に近く、保全措置なしには脆弱な状態になる可能性のある個体群を持つ。

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway