Kōrero gecko

Woodworthia “Otago-large”

At Risk - Declining

 

Among the remarkable reptiles of New Zealand, the Kōrero gecko (Woodworthia “Otago/Southland large”) holds its place as a robust, vocal and ecologically fascinating species – confined to the southern parts of the South Island.

Quick facts

  • This gecko grows to a snout-to-vent length (SVL) of up to 95 mm, with the tail being even longer. 
  • Colouration is generally brown or grey on the back, with blotches, chevrons or longitudinal stripes; the lower surfaces of the mouth and tongue are pink, and the tongue tip often shows a diffuse grey. 
  • Terrestrial/arboreal, found in beech forest, podocarp/hardwood forest, rocky grasslands, and alpine rocky areas up to ~1,300 m elevation. 
  • Primarily nocturnal, but also displays daytime behaviours such as basking in partial concealment or overt basking, and adjusts posture for thermoregulation – including pregnant females shortening gestation through basking. 
  • Unlike many geckos, the Kōrero gecko is highly gregarious. It may form large aggregations of various aged individuals in suitable rock-crevice retreats. Although antagonistic behaviour occurs, individuals tolerate each other in groups. 
  • One of its standout traits is its “chittering” or vocal nature – the common name kōrero (meaning “to talk or speak” in te reo Māori) honours this vocal behaviour.

The Kōrero gecko is a fine example of adaptation and diversity in New Zealand’s herpetofauna. Its combination of rock-dwelling and forest habitat use, social tendencies (unusual for many geckos), vocal behaviour and long gestation are all distinctive. Preserving its habitats – from inland rocky tors to forests and shrublands – is key, as is controlling predators and minimising disturbance to its retreat sites.


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Kōrero gecko © Samuel Purdie

Where they’re found

Inhabit beech forest, podocarp/hardwood forests, rocky grasslands, and rocky alpine areas up to 1,300m.