Blue star vs common intertidal amphipod

Amsonia orientalis compared with Gammarus locusta

Key Differences

• Blue star is Critically Endangered while common intertidal amphipod is Not Evaluated.

Taxonomic Classification

Rank	Blue star	common intertidal amphipod
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Malacostraca (Crustaceans)
Order	Gentianales (Gentianales)	Amphipoda (Amphipoda)
Family	Apocynaceae	Gammaridae
Genus	Amsonia	Gammarus
Species	Amsonia orientalis	Gammarus locusta

Conservation Status

Blue star

CR — Critically Endangered

common intertidal amphipod

NE — Not Evaluated

Physical Characteristics

Attribute	Blue star	common intertidal amphipod
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue star

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

common intertidal amphipod

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

common intertidal amphipod

<em>Gammarus locusta</em>, commonly known as the common intertidal amphipod, is a crustacean in the family Gammaridae. Its conservation status has not been formally evaluated by the IUCN. The species is recorded from Denmark, Norway, Portugal, and Sweden, indicating a distribution along the northeastern Atlantic coast of Europe. It typically inhabits intertidal and shallow subtidal marine and estuarine environments, where it is found among algae, under rocks, and in sediments. Gammarus amphipods are ecologically important as detritivores and as prey for shorebirds, fish, and other invertebrates in coastal food webs. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.