maracanã-guaçu vs

Ara severus compared with Chrysosphaerella longispina

Key Differences

maracanã-guaçu is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	maracanã-guaçu
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (cordados)	Ochrophyta (Ochrophyta)
Class	Aves (ave)	Chrysophyceae (Chrysophyceae)
Order	Psittaciformes (Parrots)	Ochromonadales (Ochromonadales)
Family	Psittacidae (True Parrots)	Paraphysomonadaceae
Genus	Ara (Macaws)	Chrysosphaerella
Species	Ara severus	Chrysosphaerella longispina

Conservation Status

maracanã-guaçu

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	maracanã-guaçu
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

maracanã-guaçu

Habitat

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

Range

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

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

maracanã-guaçu

A maracanã-do-Orinoco (Ara severus) é uma arara de médio porte do gênero Ara, habitante de florestas tropicais e savanas arborizadas da América do Sul, do Panamá ao Brasil central. Possui plumagem verde com testa castanha, asas azuis e cauda avermelhada. Vive em grupos barulhentos e se alimenta de frutos, sementes e flores. Nidifica em ocos de árvores. É frequentemente mantida como ave de gaiola, sendo comercializada ilegalmente.

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.