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Brachycephalus didactylus
– Least Concern
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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AMPHIBIA
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Order:
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ANURA
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Family:
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BRACHYCEPHALIDAE
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Scientific Name:
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Brachycephalus didactylus
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Species Authority:
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(Izecksohn, 1971)
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Common Name/s:
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FLEA-FROG (Eng)
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Assessment Information
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Red List Category & Criteria:
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LC ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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Telles, A.M. & Potsch de Carvalho-e-Silva, S.
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Evaluator/s:
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Stuart, S., Chanson, J., Cox, N. & Young, B. (Global Amphibian Assessment Coordinating Team)
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Justification:
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Listed as Least Concern in view of its relatively wide distribution, tolerance of a degree of habitat modification, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
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Geographic Range
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Range Description:
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This species is known from forests in the state of Rio de Janeiro, Brazil.
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Range Map:
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 (click for detailed map)
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Countries:
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Native:
Brazil
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Population
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Population:
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It is a difficult species to find because it is so small but it is thought to be relatively common.
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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It occurs on the forest leaf-litter in primary and secondary forest, where it also lays its eggs. It breeds by direct development. It has not been recorded from anthropogenic habitats, and has only been observed in good quality secondary forest.
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System:
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Terrestrial; Freshwater; Marine
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List of Habitats:
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| 1.6 | Forest - Subtropical/Tropical Moist Lowland |
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Threats
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Threats:
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This species is threatened by habitat loss due to agriculture and infrastructure development.
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List of Threats:
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| 1.1.1.2 | Habitat Loss/Degradation - Agriculture - Crops - Small-holder farming (ongoing) |
| 1.4.1 | Habitat Loss/Degradation - Infrastructure development - Industry (ongoing) |
| 1.4.2 | Habitat Loss/Degradation - Infrastructure development - Human settlement (ongoing) |
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Conservation Actions
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Conservation Actions:
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More research into the species' Extent of Occurrence, ecological requirements and population status is needed. Conservation and maintenance of its habitat is also required. Its range includes several protected areas.
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List of Conservation Actions:
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| 3.2 | Research actions - Population numbers and range (in place, needed) |
| 3.3 | Research actions - Biology and Ecology (in place, needed) |
| 3.4 | Research actions - Habitat status (in place, needed) |
| 3.5 | Research actions - Threats (in place, needed) |
| 3.8 | Research actions - Conservation measures (in place, needed) |
| 3.9 | Research actions - Trends/Monitoring (in place, needed) |
| 4.1 | Habitat and site-based actions - Maintenance/Conservation (in place, needed) |
| 4.4.2 | Habitat and site-based actions - Protected areas - Establishment (in place, needed) |
| 4.4.3 | Habitat and site-based actions - Protected areas - Management (in place, needed) |
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Bibliography
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Bibliography:
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Amphibian Data. For additional documentation about utilization and CITES status, click on the Global Amphibian Assessment (GAA) link above to see the GAA account for this species or alternatively follow this link to the search function on the Global Amphibian Assessment web site and run your own search. Izecksohn, E. 1971. Novo gênero e nova espécie de Brachycephalidae do Estado do Rio de janeiro, Brasil (Amphibia, Anura). Boletim do Museu Nacional 280: 1-12. Izecksohn, E. and Carvalho-e-Silva, S.P. 2001. Anfíbios do município do Rio de Janeiro. Editora UFRJ, Rio de Janeiro. Rocha, C.F.D. and van Sluys, M. 1998. O menor sapo do Planeta. Ciência Hoje 24(141): 68-69. Rocha, C.F.D., van Sluys, M., Alves, M.A.S., Bergallo, H.G. and Vrcibradic, D. 2000. Activity of leaf-litter frogs: when should frogs be sampled. Journal of Herpetology 34(2): 285-287. Rocha, C.F.D., van Sluys, M., Alves, M.A.S., Bergallo, H.G. and Vrcibradic, D. 2001. Estimates of forest floor litter frog communities: a comparison of two methods. Austral Ecology 26: 14-21.
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