African Black Duck vs Common Script Lichen

Anas sparsa compared with Graphis scripta

Taxonomic Classification

Rank	African Black Duck	Common Script Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Anseriformes (Anseriformes)	Ostropales (Ostropales)
Family	Anatidae	Graphidaceae
Genus	Anas	Graphis
Species	Anas sparsa	Graphis scripta

Conservation Status

African Black Duck

LC — Least Concern

Common Script Lichen

LC — Least Concern

Physical Characteristics

Attribute	African Black Duck	Common Script Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

African Black Duck

Habitat

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

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom.

Common Script Lichen

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia).

African Black Duck

The African Black Duck (Anas sparsa) is a species in the genus Anas. It is currently classified as Least Concern on the IUCN Red List. This species inhabits Typically found in various aerial, terrestrial, and aquatic environments, found across Belgium, France, Netherlands, Norway, and United Kingdom.

Common Script Lichen

<em>Graphis scripta</em>, the common script lichen, is a crustose lichen in the family Graphidaceae, order Graphidales, with a cosmopolitan distribution spanning Asia, Europe, North America, and South America. This species grows as a flat, tightly attached crust on the smooth bark of deciduous trees in humid, shaded woodland habitats, where it is often among the most frequently encountered bark lichens. The distinctive feature of <em>Graphis scripta</em> is its elongated, script-like apothecia — black, slit-like fruiting bodies that resemble ancient writing and give the species its common name. As a lichen, it represents a stable mutualistic association between a fungal partner (mycobiont) and photosynthetic algal or cyanobacterial partners (photobionts). The species is listed as Least Concern by the IUCN, reflecting its wide distribution and tolerance across a range of forested habitats. It is considered sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality. Biological traits for this species remain poorly documented in the scientific literature, including data on growth rates, lifespan, and detailed ecological interactions beyond its known substrate preferences.