Acrantophis madagascariensis
Acrantophis madagascariensis | |
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in Lokobe Strict Reserve, Madagascar | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Boidae |
Genus: | Acrantophis |
Species: | A. madagascariensis
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Binomial name | |
Acrantophis madagascariensis (A.M.C. Duméril & Bibron, 1844)
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Synonyms | |
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Acrantophis madagascariensis is a species of boid snake in the subfamily Sanziniinae that is endemic to the island of Madagascar.[4] Its common names include Malagasy ground boa and Madagascar boa.[1]
Description[]
This species is included in the Boidae family of snakes, subfamily Sanziniinae. No subspecies are currently recognized by ITIS.[5]
Adult females can be up to 10 feet (3.05 metres), males are typically smaller, the average size of the population is 8 feet (2.44 m) in length.[6] This is the largest snake species found on the island of Madagascar. Acrantophis madagascariensis, like others in the family, dispatch their prey by constriction.
The color pattern consists of a pale reddish-brown ground color mixed with gray, overlaid with a pattern dorsal rhombs outlined with black or brown. Sometimes this creates a vague zigzag impression. The sides are patterned a series of black ovoid markings with reddish blotches, often bordered or centered with white.[6]
Distribution and habitat[]
A. madagascariensis is endemic to Madagascar,[2] occurring in the central, northern and western parts of the island.[6]
![Acrantophis madagascariensis (1).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Acrantophis_madagascariensis_%281%29.jpg/220px-Acrantophis_madagascariensis_%281%29.jpg)
The species usually occurs in sparse, open woodland,[6] such as the Madagascar dry deciduous forests.
Conservation status[]
Acrantophis madagascariensis is classified as Least Concern on the IUCN Red List of Threatened Species since 2011. Previously it was classified as Vulnerable (VU) with the following criteria: A1cd (v2.3, 1994).[1] This means that a population reduction of at least 20% has been observed, estimated, inferred or suspected over the last 10 years or three generations, whichever is the longer, based on a decline in area of occupancy, extent of occurrence and/or quality of habitat, and based on actual or potential levels of exploitation.[1] The species was last assessed in 2011.[1]
It is also listed as CITES Appendix I, which identifies it as threatened with extinction and recommends a prohibition in international trade except for scientific research.[7]
Threats[]
Current threats include deforestation, human population growth, agricultural and industrial development, and collection for the illegal pet trade.[6] For the time being, it is only threatened locally, and this species is not in any danger as a whole.[8]
Behavior[]
Shelters in mammal burrows, fallen trees, debris piles and similar sites that offer some protection. Brumation takes place during the cool and dry winter months, usually May though July.[6]
Feeding[]
The diet consists of small mammals and birds, including rodents, bats, tenrecs, lemurs, and ducks.[8]
Reproduction[]
Mating takes place after emerging from brumation. Females may be courted by and copulate with more than one male. Ovoviviparous, females give birth to 4-6 large young after a long gestation period of 4–6 months. Neonates are 19-24 inches (48–61 cm) in length and are already capable of feeding on small rodents and birds.[6]
References[]
- ^ a b c d e Raxworthy, C.J.; Randriamahazo, H.; Rakotondrazafy, N.A.; Rakotondravony, H. (2011). "Acrantophis madagascariensis". IUCN Red List of Threatened Species. 2011: e.T283A13055130. doi:10.2305/IUCN.UK.2011-2.RLTS.T283A13055130.en. Retrieved 13 November 2021.
- ^ a b McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
- ^ The Reptile Database. www.reptile-database.org.
- ^ Glaw, Frank; Vences, Miguel (2007). A Field Guide to the Amphibians and Reptiles of Madagascar (3rd ed.). Cologne, Germany: Vences & Glaw Verlags. ISBN 978-3929449037.
- ^ "Acrantophis madagascariensis". Integrated Taxonomic Information System. Retrieved 17 February 2014.
- ^ a b c d e f g Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN 0-8069-6460-X.
- ^ Acrantophis madagascariensis at CITES and United Nations Environment Programme / World Conservation Monitoring Centre. Accessed 10 July 2008.
- ^ a b "MADAGASCAR GROUND BOA". National Geographic. Retrieved 31 December 2021.
Further reading[]
- Boulenger GA. 1893. Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families ... , Boidæ, ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 448 pp. + Plates I-XXVIII. (Boa madagascariensis, p. 120).
- Duméril A-M-C, Bibron G. 1844. Erpétologie générale ou Histoire naturelle complète des Reptiles. Tome sixième. Paris: Roret. xii + 609 pp. (Pelophilus madagascariensis, pp. 524–527). (in French).
- Kluge AG. 1991. "Boine Snake Phylogeny and Research Cycles". Misc. Pub. Museum of Zoology, Univ. of Michigan (178). 1-58. PDF at University of Michigan Library. Accessed 11 July 2008.
- Vences M, Glaw F. 2003. "Phylogeography, systematics and conservation status of boid snakes from Madagascar (Sanzinia and Acrantophis)". Salamandra, Reinbach 39 (3/4): 181-206. PDF at Miguel Vences. Accessed 29 August 2008.
External links[]
Media related to Acrantophis madagascariensis at Wikimedia Commons
Data related to Acrantophis madagascariensis at Wikispecies
- IUCN Red List least concern species
- Boidae
- Reptiles of Madagascar
- Reptiles described in 1844
- Taxa named by André Marie Constant Duméril
- Taxa named by Gabriel Bibron