vs Red-and-green Macaw

Chrysosphaerella longispina compared with Ara chloropterus

Key Differences

is Not Evaluated while Red-and-green Macaw is Least Concern.

Taxonomic Classification

Rank		Red-and-green Macaw
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Chordata (Chordates)
Class	Chrysophyceae (Chrysophyceae)	Aves (Birds)
Order	Ochromonadales (Ochromonadales)	Psittaciformes (Parrots)
Family	Paraphysomonadaceae	Psittacidae (True Parrots)
Genus	Chrysosphaerella	Ara (Macaws)
Species	Chrysosphaerella longispina	Ara chloropterus

Conservation Status

NE — Not Evaluated

Red-and-green Macaw

LC — Least Concern

Physical Characteristics

Attribute		Red-and-green Macaw
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Red-and-green Macaw

Habitat

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

Range

Widely distributed across Asia (United Arab Emirates), Europe (Norway, United Kingdom), and South America (Colombia, Ecuador, Venezuela).

Chrysosphaerella longispina is a colonial chrysophyte alga in the genus Chrysosphaerella, notable for the long silica spines (longispina: Latin, long spine) that project from each cell in the colony. The genus is characterized by spherical or discoid colonies of photosynthetic cells that each secrete siliceous scales and elongated spine-like appendages, making Chrysosphaerella colonies distinctively bristled and visible under light microscopy. The long spines of C. longispina likely serve as anti-predation structures that make the colonies more difficult for zooplankton to ingest. C. longispina is found in cold, oligotrophic freshwater lakes, particularly in Scandinavia, where comprehensive chrysophyte surveys have documented its presence. Chrysosphaerella colonies contribute to freshwater primary production and the cycling of biogenic silica, which upon cell dissolution is deposited in lake sediments as microscopically identifiable remains. These silica structures are widely used by paleolimnologists to reconstruct past changes in lake water chemistry, thermal stratification, and climate. The conservation status of C. longispina has not been assessed by the IUCN; the species is listed as Not Evaluated.

Red-and-green Macaw

Red-and-green Macaw (Ara chloropterus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.