ハシグロクロハラアジサシ vs Cinnamon antechinus

Chlidonias niger compared with Antechinus leo

Taxonomic Classification

Rank	ハシグロクロハラアジサシ	Cinnamon antechinus
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Charadriiformes (チドリ目)	Dasyuromorphia (フクロネコ目)
Family	Laridae	Dasyuridae
Genus	Chlidonias	Antechinus
Species	Chlidonias niger	Antechinus leo

Evolutionary Relationship

ハシグロクロハラアジサシ and Cinnamon antechinus share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ハシグロクロハラアジサシ

LC — Least Concern

Cinnamon antechinus

LC — Least Concern

Physical Characteristics

Attribute	ハシグロクロハラアジサシ	Cinnamon antechinus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ハシグロクロハラアジサシ

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Cinnamon antechinus

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

ハシグロクロハラアジサシ

Black Tern（Chlidonias niger）はIUCNレッドリストで軽度懸念（LC）に分類されています。生息域全体にわたって広範に分布し、個体群は安定しており、差し迫った保全上の懸念はありません。

Cinnamon antechinus

The cinnamon antechinus (Antechinus leo) is a small marsupial in the family Dasyuridae, endemic to northeastern Queensland, Australia, particularly the Cape York Peninsula. It inhabits tropical and subtropical rainforest and forest margins at low elevations, sheltering in tree hollows, dense vine tangles, and fallen logs. Like all antechinuses, it is a specialist insectivore, consuming beetles, cockroaches, moths, and other invertebrates, and occasionally small lizards. The cinnamon antechinus is named for its rich cinnamon-brown dorsal fur. A remarkable feature shared by all antechinus species is semelparous reproduction: males undergo a catastrophic physiological decline and die shortly after a brief, intense mating season in winter, leaving only the pregnant females to carry the population into the next generation. This extreme reproductive strategy results in completely male-free populations for most of the year. The species is classified as Least Concern by the IUCN, with populations within Cape York's relatively intact tropical forest. However, like all antechinuses, it faces threats from feral predators (cats and foxes), habitat degradation, and altered fire regimes. Climate change poses a long-term risk by shrinking the cool, moist forest habitats this species depends on. Genetic studies of Australian antechinuses have revealed considerable cryptic diversity.