Black-headed dwarf chameleon

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Black-headed dwarf chameleon
Bradypodion melanocephalum01.jpg
KwaZulu Dwarf Chameleon 30 10 2010.JPG
CITES Appendix II (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Chamaeleonidae
Genus: Bradypodion
Species:
B. melanocephalum
Binomial name
Bradypodion melanocephalum
(Gray, 1865)  [3] [4]
Bradypodion melanocephalum distribution.png
Synonyms

Microsaura melanocephalaGray, 1865

The black-headed dwarf chameleon (Bradypodion melanocephalum) is a lizard of the family Chamaeleonidae endemic to KwaZulu-Natal, South Africa. It is also known as the KwaZulu dwarf chamaeleon and Durban dwarf chameleon. [1] [3] [5]

Contents

Distribution

This chameleon is found in the coastal areas from north of Durban in KwaZulu-Natal south and west to Mkambati Nature Reserve in the east of the Eastern Cape; it also occurs in some inland areas (KwaZulu-Natal Midlands). [1] [5]

Taxonomy

The current species may consist of several separate species. At least three regional variants are found; one in Karkloof and Gilboa Forests, one in Weza Forest, and one in the area around Ixopo and Donnybrook. [6]

B. melanocephalum and the Natal Midlands dwarf chameleon (B. thamnobates) might be phenotypically plastic populations of the same species. However, when juveniles of both species were raised under identical conditions, they developed into what was phenotypically expected of their original populations, indicating that they are separate species. [7]

Description

Moulting; Pietermaritzburg Bradypodion melanocephalum 0306.jpg
Moulting; Pietermaritzburg

This species is generally brownish in colour, but like other chamaeleons, can change colour and pattern to camouflage itself in its surroundings. It has been observed ranging in colour from dark brown, through light brown, olive green, to a pale creamy colour at night. The head is sometimes a darker colour than the rest of the body, but not black. The common name, black-headed dwarf chamaeleon, stems from the first specimen studied where the head had turned black in the preservation process. [6]

Habitat

B. melanocephalum inhabits a range of vegetation types such as grasslands, bushlands, thickets, trees, and roadside verges. It can also live in well-vegetated urban gardens. [1]

Behaviour and biology

Catching a grasshopper KwaZulu Dwarf Chameleon catch 30 10 2010.JPG
Catching a grasshopper
Threat display to a human finger KwaZulu Dwarf Chameleon threat display 30 10 2010.JPG
Threat display to a human finger

This reptile feeds on small insects such as crickets and grasshoppers, which it captures in typical chameleon fashion with a long tongue. [5]

It gives birth to live young in summer. [8]

Predators of this animal include the snake boomslang (Dispholidus typus), shrikes and starlings, and domestic cats. [5]

When threatened, it may open its mouth to reveal the bright yellow-orange interior in an attempt to scare the threat away.

Threats

The black-headed dwarf chameleon is vulnerable because of its limited distribution. It is found in a number of small nature reserves within its range, but outside of these areas, it is threatened by habitat destruction, mostly for housing and industrial development. Roads are also a threat in dividing habitats; these animals are not adapted to open areas and move very slowly, making them soft targets for predators and vehicles on open roads. It is sometimes taken as a pet, but this is illegal; no indigenous South African animal may be kept in captivity without a permit.

Related Research Articles

<span class="mw-page-title-main">Chameleon</span> Family of reptiles

Chameleons or chamaeleons are a distinctive and highly specialized clade of Old World lizards with 200 species described as of June 2015. The members of this family are best known for their distinct range of colors, being capable of shifting to different hues and degrees of brightness. The large number of species in the family exhibit considerable variability in their capacity to change color. For some, it is more of a shift of brightness ; for others, a plethora of color-combinations can be seen.

<i>Bradypodion</i> Genus of lizards

Bradypodion is a genus of chameleons in the family Chamaeleonidae, collectively called South African dwarf chameleons. All species are found in South Africa and most are endemic to this country, but a few can also be found in Eswatini, Lesotho, southernmost Namibia and possibly southernmost Mozambique. They are quite small chameleons where the different species often can be difficult to separate by appearance, although exact location and the intense breeding colours of males are useful for their identification. They are arboreal, but some species are mostly found low in the vegetation.

<span class="mw-page-title-main">Cape dwarf chameleon</span> Species of reptile

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<span class="mw-page-title-main">Setaro's dwarf chameleon</span> Species of lizard

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<span class="mw-page-title-main">Smith's dwarf chameleon</span> Species of lizard

Smith's dwarf chameleon, also known as the Elandsberg dwarf chameleon, is a species of lizard in the family Chamaeleonidae endemic to Fynbos in South Africa's Eastern Cape. As in several species of chameleons in the genus Bradypodion, the Smith's dwarf chameleon can use its color-changing ability to actively camouflage itself depending on the vision of the specific predator species by which it is being threatened.

<span class="mw-page-title-main">Transvaal dwarf chameleon</span> Species of lizard

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<span class="mw-page-title-main">Robertson dwarf chameleon</span> Species of lizard

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<span class="mw-page-title-main">Swartberg dwarf chameleon</span> Species of lizard

The Swartberg dwarf chameleon is a species of chameleon endemic to South Africa.

<span class="mw-page-title-main">Knysna dwarf chameleon</span> Species of lizard

The Knysna dwarf chameleon is a species of dwarf chameleon in the Bradypodion genus that is endemic to South Africa. It is a forest dweller, found only in a limited range in the afromontane forests near Knysna, South Africa, and in certain surrounding areas.

<span class="mw-page-title-main">Ilanda Wilds</span>

Ilanda Wilds is a nature reserve along Amanzimtoti River in the town of Amanzimtoti, KwaZulu-Natal, South Africa. This small area of land contains various habitat types, ranging from steep rocky slopes to various riverine habitats, forest and small patches of grassland.

<i>Bradypodion ventrale</i> Species of lizard

Bradypodion ventrale, the southern dwarf chameleon, occurs in the Eastern Cape, South Africa. It is also known as the eastern Cape dwarf chameleon. It is a relatively large species of dwarf chameleon, reaching lengths of 14 cm (5.5 in). It has a very prominent casque on the back of its head and a long, beard-like throat crest. It lives in dense thickets and shrub, and is usually very difficult to spot because of its colouring. It adapts very well to living in suburban gardens, but domestic cats – being introduced predators – will usually kill all chameleons in the immediate area. Consequently, one should not bring chameleons into a garden which is frequented by cats. It gives birth to litters of between 10 and 20 babies in the summer.

<span class="mw-page-title-main">Drakensberg dwarf chameleon</span> Species of lizard

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<span class="mw-page-title-main">Namaqua dwarf chameleon</span> Species of lizard

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<span class="mw-page-title-main">Karkloof Forest</span>

The Karkloof Forest is situated in the Karkloof Nature Reserve, 22 km north of Howick, KwaZulu-Natal, South Africa.

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<i>Bradypodion caeruleogula</i> Species of lizard

Bradypodion caeruleogula, the Dhlinza dwarf chameleon, Eshowe dwarf chameleon, or uMlalazi dwarf chameleon, is endemic to KwaZulu-Natal, South Africa. It is found in Dhlinza, Entumeni and Ongoye Forests.

<span class="mw-page-title-main">Maputaland-Pondoland-Albany Hotspot</span> Southern Africa biodiversity hotspot

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<i>Agama atra</i> Species of lizard

The southern rock agama or southern African rock agama is a species of lizard from the family Agamidae that occurs in Southern Africa in Zambia, South Africa, Eswatini, Mozambique, Zimbabwe and Botswana. It lives in small colonies on rocky outcrops, and the males are very conspicuous for their bright blue heads.

<span class="mw-page-title-main">Natal Midlands dwarf chameleon</span> Species of reptile

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References

  1. 1 2 3 4 Tolley, K.A. (2018). "Bradypodion melanocephalum". IUCN Red List of Threatened Species . 2018: e.T42681112A115667626. doi: 10.2305/IUCN.UK.2018-2.RLTS.T42681112A115667626.en . Retrieved 18 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. 1 2 Bradypodion melanocephalum at the Reptarium.cz Reptile Database. Accessed 6 July 2019.
  4. "Bradypodion melanocephalum". Integrated Taxonomic Information System.
  5. 1 2 3 4 Zwelakhe Zondi (August 2015). "KwaZulu dwarf chameleon". South African National Biodiversity Institute (SANBI). Retrieved 6 July 2019.
  6. 1 2 Tolley, K. & Burger, M. (2007). Chameleons of Southern Africa. Penguin Random House South Africa. pp. 65–66. ISBN   9781770073753.
  7. Miller, Ashadee K. & Alexander, Graham J. (April 2009). "Do dwarf chameleons (Bradypodion) show developmental plasticity?". African Zoology. 44 (1): 45–54. doi:10.3377/004.044.0105. S2CID   83566903.
  8. Bill Branch (1988). Bill Branch's Field Guide to the Snakes and other Reptiles of Southern Africa. Struik Publishers.