Bothropoides alcatraz

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	REPTILIA	SQUAMATA	VIPERIDAE

Scientific Name:

Bothropoides alcatraz

Species Authority:

(Marques, Martins & Sazima, 2002)

Common Name/s:

English

–

Alcatrazes Lancehead

Synonym/s:

Bothrops alcatraz Marques, Martins & Sazima, 2002

Bothrops sp.

Taxonomic Notes:

Was originally listed as Bothrops sp.

Assessment Information [top]

Red List Category & Criteria:

Critically Endangered B1ab(iii)+2ab(iii) ver 3.1

Year Published:

2004

Assessor/s:

Marques, O.A.V., Martins, M. & Sazima, I.

Reviewer/s:

Hilton-Taylor, C. & Pollock, C.M. (Red List Programme Office)

Justification:
The Alcatrazes lancehead is known only from one location: a small island off southeastern Brazil (total area 1.35 km²). Although the species is relatively common on the island, its highly restricted range and continuing decline in habitat quality, as a result of the island being used target practice by the Brazilian Navy, qualify the species for the Critically Endangered category.

History:

2000

–

Critically Endangered

Geographic Range [top]

Range Description:	Bothrops alcatraz is known only from Alcatrazes Island (1.35 km²), the largest of four small islands of Alcatrazes Archipelago, approximately 35 km from the coast of São Paulo, southeastern Brazil.
Countries:	Native: Brazil (São Paulo)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Current population size is unknown, although the species is relatively common on the island.
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	The species is active both on the ground and on low vegetation within the Atlantic forest covering Alcatrazes Island.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Alcatrazes Island is currently used as a Naval target practice area. Such activities are threatening the habitat of the island, which in turn poses a threat to the species present on the island. Since this snake is known only from this area, habitat disturbance is a particular threat to the population.

Major Threat(s):

Alcatrazes Island is currently used as a Naval target practice area. Such activities are threatening the habitat of the island, which in turn poses a threat to the species present on the island. Since this snake is known only from this area, habitat disturbance is a particular threat to the population.

Citation:	Marques, O.A.V., Martins, M. & Sazima, I. 2004. Bothropoides alcatraz. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 23 February 2012.
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