Eutropis_multifasciata

<i>Eutropis multifasciata</i>

Eutropis multifasciata

Species of lizard

Eutropis multifasciata, commonly known as the East Indian brown mabuya, many-lined sun skink, many-striped skink, common sun skink or (ambiguously) as golden skink, is a species of skink.

Quick Facts Eutropis multifasciata, Conservation status ...

Description

See Snake scales for terminology.
A many-striped skink in Bali, Indonesia

Their snout is moderate to obtuse, and lower eyelid scaly. Nostril behind vertical of the suture between rostral and first labial; a postnasal; anterior loreal not deeper than the second, in contact with the first labial; supranasals frequently in contact behind rostral; frontonasal broader than long; prefrontals constantly forming a median suture; frontal as long as or shorter than the frontoparietals and interparietal together, in contact with the second (rarely also with the first) supraocular: 4 supraoculars, second largest; 6 supraciliaries, first largest; fronto-parietals distinct, larger than the interparietal, which entirely separates the parietals; a pair of nuchals, 4 labials anterior to the subocular, which is large and not narrower below. Ear-opening roundish or oval, as large as a lateral scale, or a little smaller, with or without a few very small lobules anteriorly. Dorsal scales more or less distinctly tri-(rarely quinque-) carinate: nuchals and laterals usually very feebly keeled, sometimes smooth; 30 to 34 scales round the middle of the body, subequal or dorsals largest. The hind limb reaches the wrist or the elbow of the adpressed fore limb. Subdigital lamellae smooth. Scales on upper surface of tibia mostly tricarinate. The tail is 1.3 to 1.6 times the length of the head and body. They are brown or olive above, with some specimens uniform or with a large whitish/red patch on each side of its body. Their backs have small black spots, sometimes confluenting into longitudinal lines. sides frequently dark brown, with whitish, black-edged ocelli; a well-defined light dorso-lateral band seldom present; lower surfaces yellowish or greenish white.[3]

Invasive species

Taiwan

Eutropis multifasciata was first observed in Taiwan in 1992, in the southern Kaohsiung area.[4] It has since spread northward and established populations in the central-western and south-western lowlands.[5] The species has successfully adapted to Taiwan's agricultural areas, open forests, and human-disturbed areas.[5] It's high fecundity (reproductive ability) has enabled it to compete with other species for resources.[6] This is likely the cause of the decline in the populations of indigenous lizard species that occupy the same habitats as Eutropis multifasciata.[6] Since this species has a poor cold tolerance, its elevational distribution in Taiwan is restricted below 500 meters.[7] However, it is expected that in response to rising temperatures associated with climate change, this species will benefit from increased maximum activity time.[5] As a result, distribution of this species is expected to expand from lowland areas to higher elevations, especially if the landscape becomes more open.[5]

Distribution

References

  1. [1]
    Shea, G.; Allison, A.; Tallowin, O.; McGuire, J.; Iskandar, D.; Cai, B.; Wang, Y.; Yang, J.; Shang, G. (2018). "Eutropis multifasciata". IUCN Red List of Threatened Species. 2018: e.T195295A2376842. doi:10.2305/IUCN.UK.2018-2.RLTS.T195295A2376842.en. Retrieved 14 April 2020.
  2. [2]
    "Eutropis multifasciata (Kuhl, 1820)". The Reptile Database; reptarium.cz. Retrieved September 19, 2017.
  3. [3]
    Boulenger, G. A. (1890). "Reptilia and Batrachia". Fauna of British India.
  4. [4]
    Ota, H.; Chang, H.W.; Liu, K.C.; Hikida, T. (1994). "A new record of the viviparous skink, Mabuya multifasciata (Kuhl, 1820) (Squamata: Reptilia), from Taiwan". Zool. Stud. 33: 86–89.
  5. [5]
    Chen, T.Y.; Richard, R.; Lin, T.E.; Huang, S.P. (2021). "Landscape forest impacts the potential activity time of an invasive lizard and its possibilities for range expansion in Taiwan under climate warming". J. Therm. Biol. 98: 102948. doi:10.1016/j.jtherbio.2021.102948. PMID 34016365. S2CID 234875549.
  6. [6]
    Lee, K.H.; Chen, T.H.; Shang, G.; Clulow, S.; Yang, Y.J.; Lin, S.M. (2019). "A check list and population trends of invasive amphibians and reptiles in Taiwan". ZooKeys (829): 85–130. doi:10.3897/zookeys.829.27535. PMC 6422934. PMID 30914838.
  7. [7]
    Lin, T.E.; Chen, T.Y.; Wei, H.L.; Richard, R.; Huang, S.P. (2019). "Low cold tolerance of the invasive lizard Eutropis multifasciata constrains its potential elevation distribution in Taiwan". J. Therm. Biol. 82: 115–122. doi:10.1016/j.jtherbio.2019.03.015. PMID 31128639. S2CID 132427936.
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