Boana beckeri

Boana beckeri is a species of frog in the family Hylidae. It is endemic to Brazil and is only known from a handful of localities in southern Minas Gerais and adjacent northeastern São Paulo.[2][4] The specific name beckeri honors Johann Becker, Brazilian zoologist[3][5] who collected many of the types.[3]

Boana beckeri
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Genus: Boana
Species:
B. beckeri
Binomial name
Boana beckeri
(Caramaschi and Cruz, 2004)
Synonyms[2]
  • Hyla beckeri Caramaschi and Cruz, 2004[3]
  • Hypsiboas beckeri (Caramaschi and Cruz, 2004)

Description

Adult males measure 24–29 mm (0.9–1.1 in) and adult females 32–34 mm (1.3–1.3 in) in snout–vent length. The tympanum is distinct. The eyes are prominent. The fingers and toes bear terminal discs and are partially webbed. The dorsum has four narrow longitudinal light brown stripes, intercalated by three brown stripes outlined by a cream line. There is also a pair of dark brown lateral stripes, delimited by a white-silvery line above and by a narrow white-silvery stripe below. Males have a single subgular vocal sac.[3]

There are two types of male advertisement calls. Type "a" call is "harsh" call consisting of a single pulsed note. Type "b" call is a trill of unpulsed notes.[6][4]

Habitat and conservation

Boana beckeri occurs in montane Atlantic forest[1] or remnants thereof at elevations of 830–1,290 m (2,720–4,230 ft) above sea level. Males have been observed calling during nighttime perched on bushes or grasses at the margins of small streams and ponds.[6][4] It appears to be locally common.[4] As of late 2020, the listing of this species in the IUCN Red List of Threatened Species dates from 2006 when it was only known from a single population. At the time, Boana beckeri was considered "data deficient".[1]

References
  1. Stuart, S.N. (2006). "Boana beckeri". IUCN Red List of Threatened Species. 2006: e.T61775A12539883. Retrieved 1 November 2020.
  2. Frost, Darrel R. (2020). "Boana beckeri (Caramaschi and Cruz, 2004)". Amphibian Species of the World: an Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 1 November 2020.
  3. Caramaschi, U. & Cruz, C. A. G. (2004). "Duas novas espécies de Hyla do grupo de H. polytaenia Cope, 1870 do sudeste do Brasil (Amphibia, Anura, Hylidae)" [Two new species of Hyla of the H. polytaenia group from southeastern Brazil (Amphibia, Anura, Hylidae)] (PDF). Arquivos do Museu Nacional, Rio de Janeiro. 62: 247–254.
  4. Martins, Lucas B.; Giaretta, Ariovaldo A.; Carvalho, Thiago R. & Miwa, Rafael Y. (2016). "Vocalizations of Hypsiboas beckeri and H. stenocephalus (Anura: Hylidae), two species of the H. polytaenius group from southeastern Brazil". Phyllomedusa. 15 (1): 51–64. doi:10.11606/issn.2316-9079.v15i1p51-64.
  5. Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 19. ISBN 978-1-907807-42-8.
  6. Acioli, Ellen Cristina Serrão & Toledo, Luís Felipe (2008). "Amphibia, Anura, Hylidae, Hypsiboas beckeri: filling gap and description of its advertisement call". Check List. 4 (2): 182–184. doi:10.15560/4.2.182.
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