Rat musqué vs dryoptéris de linné

Ondatra zibethicus compared with Gymnocarpium dryopteris

Key Differences

• Rat musqué is Not Evaluated while dryoptéris de linné is Critically Endangered.

Taxonomic Classification

Rank	Rat musqué	dryoptéris de linné
Kingdom	Animalia (animal)	Plantae (plante)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (mammifères)	Polypodiopsida (Filicopsida)
Order	Rodentia (Rodents)	Polypodiales (Polypodiales)
Family	Cricetidae	Cystopteridaceae
Genus	Ondatra	Gymnocarpium
Species	Ondatra zibethicus	Gymnocarpium dryopteris

Conservation Status

Rat musqué

NE — Not Evaluated

dryoptéris de linné

CR — Critically Endangered

Physical Characteristics

Attribute	Rat musqué	dryoptéris de linné
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Rat musqué

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (8 countries), Europe (37 countries), North America (United States), and South America (Argentina, Bolivia, Chile).

dryoptéris de linné

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Rat musqué

The Bisamratte (Ondatra zibethicus) is a species in the genus Ondatra. Typically found in diverse terrestrial and aquatic ecosystems.

dryoptéris de linné

<em>Gymnocarpium dryopteris</em>, the common oak fern, is a delicate terrestrial fern in the family Cystopteridaceae (or Woodsiaceae, depending on classification). Despite its common name, the species is not specifically associated with oak trees; rather, it typically grows in cool, moist, shaded environments including boreal and mixed forests, rocky woodland slopes, stream banks, and shaded cliff faces. <em>Gymnocarpium dryopteris</em> spreads by rhizomes and forms low, spreading colonies with characteristic triangular, three-pinnate fronds that emerge from a slender creeping rootstock. Its geographic range spans Europe and North America, with populations in cool temperate and boreal zones. The species is currently assessed as Critically Endangered in certain regional assessments, suggesting that particular populations face severe decline, likely due to habitat loss, forest fragmentation, and altered hydrology, even if the species retains a broader global range. Biological traits such as lifespan, body size, and diet remain poorly documented at a standardized population level. <em>Gymnocarpium dryopteris</em> is a characteristic indicator of undisturbed cool woodland habitats and is valued for both its ecological role in forest understoreys and its aesthetic appeal.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇫🇷 France 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States