Atiu Swiftlet vs clustered earth moss

Aerodramus sawtelli compared with Ephemerum cohaerens

Key Differences

Atiu Swiftlet is Vulnerable while clustered earth moss is Not Evaluated.

Taxonomic Classification

Rank	Atiu Swiftlet	clustered earth moss
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Bryophyta
Class	Aves (Birds)	Bryopsida (Bryopsida)
Order	Apodiformes (Apodiformes)	Pottiales (Pottiales)
Family	Apodidae	Ephemeraceae
Genus	Aerodramus	Ephemerum
Species	Aerodramus sawtelli	Ephemerum cohaerens

Conservation Status

Atiu Swiftlet

VU — Vulnerable

clustered earth moss

NE — Not Evaluated

Physical Characteristics

Attribute	Atiu Swiftlet	clustered earth moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atiu Swiftlet

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

clustered earth moss

Habitat

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

Range

Distributed across Norway, Portugal, and United States.

Atiu Swiftlet

The Atiu Swiftlet (Aerodramus sawtelli) is a species in the genus Aerodramus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

clustered earth moss

Ephemerum cohaerens is a tiny, ephemeral moss in the family Pottiaceae (or Ephemeraceae, according to some classification schemes) with a distribution across Europe and North America. The genus Ephemerum consists of minute mosses that lack a persistent leafy gametophyte stage visible to the naked eye; instead, the dominant visible structure is the sporophyte, with the diminutive gametophytes bearing single stalked capsules close to the soil surface. E. cohaerens grows on moist, disturbed, bare soil in arable fields, garden beds, paths, and river margins. These ephemeral mosses are early colonizers of open mineral soils, completing their life cycle rapidly and then disappearing. They rely on conditions with minimal competition from taller vegetation. The species has not been formally evaluated by the IUCN for conservation status, reflecting the limited demographic data available for many bryophyte species. Ephemeral mosses of arable habitats are of some conservation interest in Europe, where intensification of agriculture has reduced the extent and frequency of winter-fallow bare soil conditions that these species require.