Barbados nut vs Common Water Rat

Jatropha curcas compared with Hydromys chrysogaster

Key Differences

• Barbados nut is Not Evaluated while Common Water Rat is Least Concern.

Taxonomic Classification

Rank	Barbados nut	Common Water Rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Malpighiales (Malpighiales)	Rodentia (Rodents)
Family	Euphorbiaceae	Muridae (Mice & Rats)
Genus	Jatropha	Hydromys
Species	Jatropha curcas	Hydromys chrysogaster

Conservation Status

Barbados nut

NE — Not Evaluated

Common Water Rat

LC — Least Concern

Physical Characteristics

Attribute	Barbados nut	Common Water Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Barbados nut

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (44 countries), Asia (15 countries), Europe (4 countries), North America (17 countries), Oceania and the Pacific (9 countries), and South America (7 countries).

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Barbados nut

The Barbados nut (Jatropha curcas) is a species in the genus Jatropha. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Afrotropic biogeographic realm. Po.

Common Water Rat

<em>Hydromys chrysogaster</em>, commonly known as the common water rat or rakali, is a semi-aquatic rodent in the family Muridae, native to Australia and New Guinea. It is classified as Least Concern by the IUCN, reflecting its relatively stable population across a broad range of freshwater and estuarine habitats on the Australian continent and associated islands. The species typically inhabits the banks of rivers, lakes, wetlands, and estuaries, where it constructs burrows in streambanks. It is highly adapted for an aquatic lifestyle, with partially webbed hind feet, a flattened head, and a dense waterproof coat. <em>Hydromys chrysogaster</em> is a carnivore, typically feeding on fish, crustaceans, mussels, frogs, and aquatic invertebrates, which it often carries to elevated feeding platforms to consume. The species is nocturnal and crepuscular, most active during early morning and evening hours near the water's edge. Biological traits including average lifespan, body length, and weight remain poorly documented in standardized databases, though adults are generally robust for a rodent, reportedly reaching body lengths of 20–35 cm excluding the tail. Geographic range details for this particular record remain incompletely documented in available data sources. Ecologically, the common water rat is an important apex predator in small-scale freshwater food webs and serves as an indicator species for wetland health in Australian riparian systems.