Erz-Kanalläufer vs Javareisfink

Amara aenea compared with Lonchura oryzivora

Key Differences

• Erz-Kanalläufer is Least Concern while Javareisfink is Vulnerable.

Taxonomic Classification

Rank	Erz-Kanalläufer	Javareisfink
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Aves (Vögel)
Order	Coleoptera (Käfer)	Passeriformes (Sperlingsvögel)
Family	Carabidae	Estrildidae
Genus	Amara	Lonchura
Species	Amara aenea	Lonchura oryzivora

Evolutionary Relationship

Erz-Kanalläufer and Javareisfink share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Erz-Kanalläufer

LC — Least Concern

Javareisfink

VU — Vulnerable

Physical Characteristics

Attribute	Erz-Kanalläufer	Javareisfink
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Erz-Kanalläufer

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (7 countries) and North America (Canada, United States).

Javareisfink

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 6 distinct biome types spanning the Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Tanzania), Asia (Taiwan, Thailand, Vietnam), Europe (5 countries), North America (United States), Oceania and the Pacific (Australia), and South America (Colombia, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Erz-Kanalläufer

<em>Amara aenea</em>, the common sun beetle, is a carabid ground beetle in the family Carabidae, order Coleoptera. It is broadly distributed across Europe and has been introduced to North America, typically inhabiting open, sunny habitats such as arable fields, grasslands, sandy heathlands, and disturbed ground with sparse vegetation. Adults are omnivorous, feeding on seeds, small invertebrates, and plant material, and are considered important predators of weed seeds in agricultural systems. <em>Amara aenea</em> is surface-active during warm, dry conditions, typically exhibiting peak activity in late spring and summer. Like many carabid beetles, it is nocturnal and shelters under stones and debris during the day. Larvae develop in the soil, where they also feed on organic matter and small invertebrates. Biological traits including precise adult lifespan, body length measurements, and detailed prey preferences remain poorly documented at the species level. The species is assessed as Least Concern by the IUCN, reflecting its wide distribution, high adaptability to disturbed environments, and no significant known threats to global population status.

Javareisfink

One of the most popular cage birds in East Asia, Java sparrows are striking finches with grey plumage, a bold black head, distinctive white cheek patches, and a bright red bill. Native to Java and Bali in Indonesia, they have been introduced to many parts of Asia, Africa, and the Americas. They inhabit open grasslands, rice fields, and farmland, often becoming pests on rice crops. Listed as Vulnerable in their native range due to severe trapping pressure for the cage bird trade.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇺🇸 United States