Arizona alder vs Black-Necked Grebe

Alnus oblongifolia compared with Podiceps nigricollis

Key Differences

• Arizona alder is Least Concern while Black-Necked Grebe is Endangered.

Taxonomic Classification

Rank	Arizona alder	Black-Necked Grebe
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Fagales (Beeches & Oaks)	Podicipediformes (Podicipediformes)
Family	Betulaceae	Podicipedidae
Genus	Alnus	Podiceps
Species	Alnus oblongifolia	Podiceps nigricollis

Conservation Status

Arizona alder

LC — Least Concern

Black-Necked Grebe

EN — Endangered

Physical Characteristics

Attribute	Arizona alder	Black-Necked Grebe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arizona alder

Habitat

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

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.

Arizona alder

The Arizona alder, Alnus oblongifolia, is a species. It is currently assessed as least concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.