The grand skink (''Oligosoma grande'') is an

endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

of large

skink Skinks are lizards belonging to the family Scincidae, a family in the infraorder Scincomorpha. With more than 1,500 described species across 100 different taxonomic genera, the family Scincidae is one of the most diverse families of lizards. Ski ...

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the central

Otago Otago (, ; mi, Ōtākou ) is a region of New Zealand located in the southern half of the South Island administered by the Otago Regional Council. It has an area of approximately , making it the country's second largest local government reg ...

region of

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

Physical characteristics

Grand skinks are relatively large compared to other New Zealand skinks, capable of growing to lengths up to 11 inches (29 cm). They are marked with yellow-green speckling, which provides excellent

camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the ...

in their rocky habitat of

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.schist Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes o ...

outcrops. Like most skinks, grand skinks are

omnivore An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutr ...

s and feed on a wide variety of

insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...

s and fleshy

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

Habitat

Grand skinks are only found in very specific locations in

, and are typically limited to the large schist rock outcroppings found in that region. They can often be seen sunning themselves on these rocks. As of 2000, the range of the grand skink has decreased by roughly 90%. Although it was once widespread, land use change, particularly the intensification of farming, and the introduction of mammalian predators has led to a decline in the population. The

New Zealand Department of Conservation The Department of Conservation (DOC; Māori: ''Te Papa Atawhai'') is the public service department of New Zealand charged with the conservation of New Zealand's natural and historical heritage. An advisory body, the New Zealand Conservation Au ...

estimates that there are only 2,000 to 5,000 individual grand skinks remaining.

Conservation status

As at the last reassessment in 2012, grand skinks have been classified as Nationally Endangered under the

New Zealand Threat Classification System The New Zealand Threat Classification System is used by the Department of Conservation to assess conservation priorities of species in New Zealand. The system was developed because the IUCN Red List, a similar conservation status system, had some ...

References

* Listed as Vulnerable (VU C2a v2.3) * The diet of grand skinks (''Oligosoma grande'') and Otago skinks (''O. otagense'') in Otago seral tussock grasslands. ''New Zealand journal of Zoology''. 2003. Volume 30;pp 243–25

External links

Video of Grand skinks from the New Zealand Department of ConservationImage of a Grand skink
{{Taxonbar, from=Q2711957 Oligosoma Reptiles described in 1845 Reptiles of New Zealand Endangered biota of New Zealand Taxa named by John Edward Gray Endemic fauna of New Zealand Endemic reptiles of New Zealand