Brookesia nana, also known as the nano-chameleon, is a species of chameleonendemic to montane rainforests in northern Madagascar (North of 16°S).[2] Unlike some chameleons, Brookesia nana does not change colors, which is an example of paedomorphism.[1] The majority of northern Brookesia species are restricted to rainforest.[3]
The species was discovered by herpetologistFrank Glaw and other German researchers in 2021[1] in the rainforest on the Sorata massif in northern Madagascar. Described in 2021, it could represent the world's smallest reptile.[2]Brookesia nana is not arboreal, as it tends to inhabit the forest floor. It is likely that the species is endangered due to deforestation in Madagascar.[3] Miniaturism is believed to evolve from habitat loss. [4]
The nano-chameleon is blotchy brown in color with a yellow-orange tail. Like other Brookesia species, females are generally larger than the makes to accommodate their eggs.[1] Adult males measure 22 mm (0.87 inch) in total length (including tail), while females are slightly larger at 29 mm (1.1 inches).[1][5] This species of chameleon has rows of dorsolateral tubercles along its vertebral column and also has a pelvic spine.[1] There is an absent dorsal pelvic shield in the sacral area.[1] Male chameleons have shorter tails than females which differs from species of the Brookesia minima group. New species is most similar to Brookesia micra. Brookesia nana contain relatively large genital organs which are necessary for successful copulation.[4][1]
Evolutionedit
The chameleon genus Brookesia is made up of species which were divided into two lineages.[1] One of the lineages is made up of miniaturized species. Evolution of miniaturized body results in consequences to the survival of Brookesia.
Conservation Statusedit
Brookesia nana is known from a single location. A lot about this species is still unknown which makes it difficult to evaluate conservation status. This species is at higher risk due to low elevation and deforestation, slash-and-burn agriculture, and cattle.[4] Madagascar officials have established a reserve in Sorata mountain, in Madagascar, to protect remaining forest habitats and Brookesia nana.[3]
Referencesedit
Wikimedia Commons has media related to Brookesia nana.
^ abcdefghiGlaw, Frank; Köhler, Jörn; Hawlitschek, Oliver; Ratsoavina, Fanomezana M.; Rakotoarison, Andolalao; Scherz, Mark D. & Vences, Miguel (28 January 2021). "Extreme miniaturization of a new amniote vertebrate and insights into the evolution of genital size in chameleons". Scientific Reports. 11 (1): 2522. doi:10.1038/s41598-020-80955-1. PMC7844282. PMID 33510189.
^ abBittel, Jason (1 February 2021). "New chameleon species may be world's smallest reptile". National Geographic. Retrieved 2 February 2021.
^ abcAndrew, Scottie (3 February 2021). "A newly discovered chameleon less than an inch long could be the world's smallest reptile". CNN. Retrieved 2021-02-04.
^ abcSodikoff, Genese Marie (2021-09-10). "Shrunken Life: Discourses of the Cryptic and the Miniature in Madagascar". ETropic: Electronic Journal of Studies in the Tropics. 20 (2): 55–73. doi:10.25120/etropic.20.2.2021.3820. ISSN 1448-2940.
^"'Smallest reptile on earth' discovered in Madagascar". BBC News. 5 February 2021. Retrieved 5 February 2021.
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brookesia, nana, also, known, nano, chameleon, species, chameleon, endemic, montane, rainforests, northern, madagascar, north, unlike, some, chameleons, does, change, colors, which, example, paedomorphism, majority, northern, brookesia, species, restricted, ra. Brookesia nana also known as the nano chameleon is a species of chameleon endemic to montane rainforests in northern Madagascar North of 16 S 2 Unlike some chameleons Brookesia nana does not change colors which is an example of paedomorphism 1 The majority of northern Brookesia species are restricted to rainforest 3 Brookesia nana Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Reptilia Order Squamata Suborder Iguania Family Chamaeleonidae Genus Brookesia Species B nana Binomial name Brookesia nanaGlaw et al 2021 1 The species was discovered by herpetologist Frank Glaw and other German researchers in 2021 1 in the rainforest on the Sorata massif in northern Madagascar Described in 2021 it could represent the world s smallest reptile 2 Brookesia nana is not arboreal as it tends to inhabit the forest floor It is likely that the species is endangered due to deforestation in Madagascar 3 Miniaturism is believed to evolve from habitat loss 4 Contents 1 Description 2 Evolution 3 Conservation Status 4 ReferencesDescription editThe nano chameleon is blotchy brown in color with a yellow orange tail Like other Brookesia species females are generally larger than the makes to accommodate their eggs 1 Adult males measure 22 mm 0 87 inch in total length including tail while females are slightly larger at 29 mm 1 1 inches 1 5 This species of chameleon has rows of dorsolateral tubercles along its vertebral column and also has a pelvic spine 1 There is an absent dorsal pelvic shield in the sacral area 1 Male chameleons have shorter tails than females which differs from species of the Brookesia minima group New species is most similar to Brookesia micra Brookesia nana contain relatively large genital organs which are necessary for successful copulation 4 1 Evolution editThe chameleon genus Brookesia is made up of species which were divided into two lineages 1 One of the lineages is made up of miniaturized species Evolution of miniaturized body results in consequences to the survival of Brookesia Conservation Status editBrookesia nana is known from a single location A lot about this species is still unknown which makes it difficult to evaluate conservation status This species is at higher risk due to low elevation and deforestation slash and burn agriculture and cattle 4 Madagascar officials have established a reserve in Sorata mountain in Madagascar to protect remaining forest habitats and Brookesia nana 3 References edit nbsp Wikimedia Commons has media related to Brookesia nana a b c d e f g h i Glaw Frank Kohler Jorn Hawlitschek Oliver Ratsoavina Fanomezana M Rakotoarison Andolalao Scherz Mark D amp Vences Miguel 28 January 2021 Extreme miniaturization of a new amniote vertebrate and insights into the evolution of genital size in chameleons Scientific Reports 11 1 2522 doi 10 1038 s41598 020 80955 1 PMC 7844282 PMID 33510189 a b Bittel Jason 1 February 2021 New chameleon species may be world s smallest reptile National Geographic Retrieved 2 February 2021 a b c Andrew Scottie 3 February 2021 A newly discovered chameleon less than an inch long could be the world s smallest reptile CNN Retrieved 2021 02 04 a b c Sodikoff Genese Marie 2021 09 10 Shrunken Life Discourses of the Cryptic and the Miniature in Madagascar ETropic Electronic Journal of Studies in the Tropics 20 2 55 73 doi 10 25120 etropic 20 2 2021 3820 ISSN 1448 2940 Smallest reptile on earth discovered in Madagascar BBC News 5 February 2021 Retrieved 5 February 2021 nbsp This chameleon article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Brookesia nana amp oldid 1219170020, wikipedia, wiki, book, books, library,
