Map_thumbnail_large_font

Allobates olfersioides

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AMPHIBIA ANURA AROMOBATIDAE

Scientific Name: Allobates olfersioides
Species Authority: (Lutz, 1925)
Common Name(s):
English Rio Rocket Frog
Synonym(s):
Colostethus olfersioides Edwards, 1971
Eupemphix olfersioides Lutz, 1925
Phyllobates alagoanus Bokermann, 1967
Phyllobates capixaba Bokermann, 1967
Phyllobates carioca Bokermann, 1967
Taxonomic Notes: Based on morphological analyses, Verdade and Rodrigues (2007) allocate all Atlantic Forest species of Allobates to synonymy with Allobates olfersioides.

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2a; B2ab(iii) ver 3.1
Year Published: 2010
Date Assessed: 2008-11-07
Assessor(s): Vanessa Verdade
Reviewer(s): Ariadne Angulo and Simon Stuart
Justification:
Listed as Vulnerable because of a population decline despite its widespread distribution, its association to the highly threatened Atlantic rainforest biome, occurrence in areas affected by human population expansion, and geographic overlap with the chytrid's distribution in Brazil.
History:
2008 Vulnerable (IUCN 2008)
2008 Vulnerable
2004 Vulnerable

Geographic Range [top]

Range Description: Allobates olfersioides is found in coastal forests of the Atlantic Domain from sea level to about 1000 masl. The species can be found from the north of the state of Alagoas to the south of the state of Rio de Janeiro (between
08 54 S and 23 00 S latitudinal degrees), potentially occurring in Parque Estadual do Rio Doce, state of Minas Gerais (Verdade and Rodrigues, 2007).
Countries:
Native:
Brazil (Alagoas, Bahia, Sergipe)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It used to be a very common species, but it has recently declined and is now absent from several historical localities in the states of Rio de Janeiro and Espírito Santo. The species still appears to be relatively common in northeastern Brazil (V. Verdade, pers. comm. 2008).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Allobates olfersioides is diurnal and lives on the forest floor of primary and secondary forests. The tadpoles hatch in humid terrestrial nests and are carried by their parents to puddles or small rivulets on the forest floor where they feed until metamorphosis. Males are known to carry tadpoles (ca Gosner stage 25) (Verdade and Rodrigues, 2007).
Gravid females were observed in February, April, August, and September, suggesting that reproduction is likely to occur throughout the year. In addition, they have been found to have both mature eggs and developing follicles in the ovaries, which again suggests that they may reproduce more than once during the reproductive season. Females were found to have a maximum of 11 mature eggs (ca 1.5 mm each) and a mean of 8 eggs (Verdade and Rodrigues, 2007). In Bahia, this species was found to have a strong association to bromeliads (Tinoco et al., 2008).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Habitat loss, due to deforestation and agricultural development, is ongoing, but may not have been severe enough to cause the declines that have been observed. In Bahia, this species was found to be one of the most threatened by environmental loss (Tinoco et al., 2008). Chytridiomycosis could be implicated in declines, specimens from Rio de Janeiro tested positive for chytrids (Carnaval et al., 2006).

Conservation Actions [top]

Conservation Actions: It is known to occur in several protected areas, such as Parque Nacional da Serra da Bocaina. Research to determine the causes of the current decline is urgently needed.

Citation: Vanessa Verdade 2010. Allobates olfersioides. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 21 October 2014.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided