Alder leaf beetle vs Black-Necked Grebe

Agelastica alni compared with Podiceps nigricollis

Key Differences

• Alder leaf beetle is Least Concern while Black-Necked Grebe is Endangered.

Taxonomic Classification

Rank	Alder leaf beetle	Black-Necked Grebe
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Coleoptera (Beetles)	Podicipediformes (Podicipediformes)
Family	Chrysomelidae	Podicipedidae
Genus	Agelastica	Podiceps
Species	Agelastica alni	Podiceps nigricollis

Evolutionary Relationship

Alder leaf beetle and Black-Necked Grebe share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alder leaf beetle

LC — Least Concern

Black-Necked Grebe

EN — Endangered

Physical Characteristics

Attribute	Alder leaf beetle	Black-Necked Grebe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder leaf beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Black-Necked Grebe

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Alder leaf beetle

The Alder leaf beetle (Agelastica alni) is a species in the genus Agelastica. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Black-Necked Grebe

Black-Necked Grebe (Podiceps nigricollis) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States