Nanger dama

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Addra Gazelle

Taxonomy

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Antilopinae
Genus: Nanger
Species: Nanger dama (Pallas, 1766)

Common Names by Region

General / English: Addra Gazelle, Dama Gazelle
North Africa / Sahel: Mhorr Gazelle (regional usage)
French: Gazelle dama
Conservation / Zoological Use: Dama Gazelle


Description

General Appearance

The Addra gazelle is the largest and tallest gazelle species, with long legs adapted for endurance travel across open desert and semi-desert landscapes. Its coloration is striking: a predominantly white body with reddish-brown to chestnut coloration on the neck, shoulders, and upper back.

The species has a high-shouldered, elegant profile and a long, narrow head.

Size

Shoulder height: 90–120 cm (35–47 in)
Body length: 140–170 cm (55–67 in)
Weight: 35–75 kg (77–165 lb)

Males are typically larger and more heavily built than females.

Horns

  • Both sexes possess horns
  • Long, slender, and lyre-shaped, curving outward then inward
  • Horn length may reach 35–40 cm (14–16 in)

Known Range

Historically widespread across North Africa and the Sahel, from Morocco and Western Sahara eastward into Sudan.

Current wild range:

  • Extremely fragmented
  • Small remnant populations in Niger and Chad

The species is now functionally absent from much of its former range.


Habitat

  • Arid and semi-arid desert
  • Sahelian grasslands
  • Open plains with sparse vegetation

Prefers landscapes that allow long-distance visibility and movement rather than dense cover.


Behavior

Activity

  • Primarily diurnal, with activity peaks in early morning and late afternoon
  • Rest during extreme heat

Social Structure

  • Small herds or loose groupings
  • Group size fluctuates with resource availability
  • Historically formed larger seasonal aggregations

Movement

  • Highly mobile, adapted for long-distance travel in search of forage and water
  • Relies on memory of seasonal vegetation patterns


Diet

  • Browses grasses, herbs, leaves, and shoots
  • Highly water-efficient; obtains much of its moisture from food
  • Shifts diet seasonally based on plant availability


Reproduction

  • Breeding can occur year-round, often timed to favorable conditions
  • Gestation period approximately 6 months
  • Usually a single calf per birth
  • Calves are hidden for short periods after birth to reduce predation risk


Predators / Threats

Natural Predators (Historical)

  • Large carnivores such as lions, cheetahs, and hyenas

Primary Modern Threats

  • Overhunting and poaching
  • Habitat degradation from livestock grazing
  • Political instability limiting conservation enforcement
  • Fragmentation of remaining populations


Conservation Status

IUCN Red List: Critically Endangered

The Addra gazelle is one of the most endangered large mammals in Africa.

Survival of the species now depends heavily on:

  • Managed reserves
  • Captive breeding programs
  • Carefully monitored reintroduction efforts


Additional Notes

  • Considered a flagship species for Sahelian conservation
  • Exceptionally adapted to extreme environments
  • Loss of the Addra gazelle represents not just species decline, but the erosion of entire desert ecosystems and migratory knowledge encoded over millennia


Maintenance / Management

  • Requires large, connected landscapes to thrive
  • Conservation success depends on cross-border cooperation
  • Long-term viability requires restoring movement corridors, not isolated enclosures


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