vs Scarlet-bellied Mountain-Tanager

Colacium simplex compared with Anisognathus igniventris

Key Differences

is Not Evaluated while Scarlet-bellied Mountain-Tanager is Least Concern.

Taxonomic Classification

Rank		Scarlet-bellied Mountain-Tanager
Kingdom	Protozoa (protozoa)	Animalia (Animals)
Phylum	Euglenozoa (Euglenozoa)	Chordata (Chordates)
Class	Euglenoidea (Euglenoidea)	Aves (Birds)
Order	Euglenida (Euglenida)	Passeriformes (Songbirds)
Family	Euglenaceae	Thraupidae
Genus	Colacium	Anisognathus
Species	Colacium simplex	Anisognathus igniventris

Conservation Status

NE — Not Evaluated

Scarlet-bellied Mountain-Tanager

LC — Least Concern

Physical Characteristics

Attribute		Scarlet-bellied Mountain-Tanager
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.

Scarlet-bellied Mountain-Tanager

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Colacium simplex is a photosynthetic euglenoid protist in the family Euglenaceae, notable for its epibiotic lifestyle as a stalked organism colonizing the surfaces of freshwater crustaceans and other zooplankton. This microscopic species belongs to a genus that bridges free-swimming euglenoid behavior and sessile, colonial existence, attaching to hosts via mucilaginous stalks. Colacium simplex, as its name implies, exhibits a relatively uncomplicated morphology compared to other genus members, with simple colony structures that anchor to copepods, cladocerans, and occasionally other small invertebrates. The organism photosynthesizes when light is available, using chloroplasts derived from the green algal endosymbiont common to euglenoids, while potentially employing osmotrophic nutrition in darker conditions. Its presence on zooplankton hosts can affect host swimming behavior and, in heavy infestations, may impose a metabolic cost on the carrier. Colacium simplex inhabits lentic and slow-moving lotic freshwater systems globally, wherever appropriate zooplankton hosts occur. It plays a role in microbial community structure and organic matter dynamics in planktonic food webs. Taxonomic understanding of the genus continues to evolve with molecular phylogenetic studies.

Scarlet-bellied Mountain-Tanager

Scarlet-bellied Mountain-Tanager (Anisognathus igniventris) 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.