West African Dwarf Crocodile

West African Dwarf Crocodile

Scientific Name: Osteolaemus tetraspis
Common Names: African Dwarf Crocodile, West African Dwarf Crocodile

Maximum adult length: 1.8 metres (5.9 feet)

 

N.B. Exceptionally large specimens can be found in all species of crocodilian.

 

The West African dwarf crocodile is the world’s smallest crocodile, growing up to 1.8 metres (5.9 feet). It is found alone or in pairs, in burrows and the hollows of low lying tree branches at the waters edge. It is a heavily armoured crocodile, which is dark in colour on the back and sides with a yellowish belly featuring many black patches. Dwarf crocodiles are a little-known species, unlike their more studied relatives.

 

Kingdom
ANIMALIA
Phylum
CHORDATA
Class
REPTILIA
Order
CROCODYLIA
Family
CROCODYLIDAE
Genus
OSTEOLAEMUS

The West African dwarf crocodile is classified as Vulnerable on the IUCN Red List of Threatened Species.

It is listed on CITES Appendix I.


Red List Category & Criteria:
 Vulnerable A2cd ver 2.3
Year Published: 1996
Date Assessed: 1996-08-01

 

WA dwarf status

Countries: Angola; Benin; Burkina Faso; Cameroon; Central African Republic; Congo; The Democratic Republic of the Congo; Côte d’Ivoire; Gabon; Gambia; Ghana; Guinea; Guinea-Bissau; Liberia; Nigeria; Senegal; Sierra Leone; Togo

 

WA dwarf range

This species is found mainly in swamps and swamp forests, with a preference for standing or slow-moving bodies of water. Occasionally, dwarf crocodiles may occur in pools in savannah habitats, where they are reported to spend the dry season in burrows or hidden beneath tree root structures.

The diet tends to change throughout the year, with fish being taken in the wet season when swollen rivers bring an influx of fish into their habitats occupied by the dwarf crocodile. In the dry season, when fish are not readily available, they feed mainly on crustaceans and amphibians. It is also thought that this species may feed on some terrestrial prey species.

The dwarf crocodile is designated as a vulnerable species in the wild. They are at threat from habitat change, and are often killed for food. Accurate population data is very limited. They may be locally abundant in some countries such as Cameroon, but have suffered population depletion in others such as Gambia.

 

The small size and non-aggressive nature of the dwarf crocodile makes its capture and transport relatively easy, and so it is the most heavily hunted crocodile in the area.

 

Though some skins are used in local manufacturing of leather products, they are of poor quality, so there is little interest in captive breeding or a sustainable use program.

 

Est. wild population: 25,000 to 100,000
Main conservation threats: Habitat destruction and subsistence hunting

References

IUCN Red List (September, 2014) http://www.iucnredlist.org

 

At the zoo

Our pair of West African dwarf crocodiles, Monty and Jolie, is a long-established breeding pair, which has produced several clutches of hatchlings in recent years.

 

It is immediately evident when Monty and Jolie are expecting, as they become increasingly territorial and distrustful of the zookeeper team. Such is their aggression, that during the incubation period, the pair is typically left uninterrupted as they keep diligent guard of the nest mound. They really are excellent parents!

 

Visitors to Crocodiles of the World may meet some of Monty and Jolie’s offspring in the animal encounter zone, during animal handling and animal photo experiences.

 

Adopters

  • Amber Rainbow
  • Natasha Perry

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