vs Herb Field Mouse

Colacium sideropus compared with Apodemus uralensis

Key Differences

• is Not Evaluated while Herb Field Mouse is Least Concern.

Taxonomic Classification

Rank		Herb Field Mouse
Kingdom	Protozoa (protozoa)	Animalia (Animals)
Phylum	Euglenozoa (Euglenozoa)	Chordata (Chordates)
Class	Euglenoidea (Euglenoidea)	Mammalia (Mammals)
Order	Euglenida (Euglenida)	Rodentia (Rodents)
Family	Euglenaceae	Muridae (Mice & Rats)
Genus	Colacium	Apodemus
Species	Colacium sideropus	Apodemus uralensis

Conservation Status

NE — Not Evaluated

Herb Field Mouse

LC — Least Concern

Physical Characteristics

Attribute		Herb Field Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil and Sweden.

Herb Field Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Russia.

Colacium sideropus is a microscopic euglenoid protist belonging to the family Euglenaceae, characterized by its sessile, colonial lifestyle attaching to aquatic invertebrates and zooplankton. Members of the genus Colacium are distinguished from free-swimming euglenoids by their stalked or clustered growth form, anchoring to the bodies of crustaceans such as copepods and cladocerans in freshwater environments. Like other photosynthetic euglenoids, Colacium possesses chloroplasts derived from secondary endosymbiosis with a green alga, allowing it to perform photosynthesis under favorable light conditions. The relationship with host invertebrates is generally considered epibiotic rather than parasitic, with the protist colonizing the external surfaces of its host without causing significant harm. Colacium sideropus occurs in freshwater lakes, ponds, and slow-moving streams where its zooplankton hosts are abundant. Its ecological role includes contributing to microbial food webs and nutrient cycling within freshwater ecosystems. As with many microscopic protists, its true distribution and abundance are difficult to assess from macroscopic surveys, and it is likely globally distributed wherever suitable hosts exist in freshwater habitats.