Crested geckos, small arboreal lizards recognized by the distinctive crests above their eyes, have become popular pets worldwide. Understanding their natural habitat is important for their conservation and provides insight for their care in captivity.
Geographic Range
Crested geckos are endemic to New Caledonia, an archipelago located in the South Pacific. This limited natural distribution makes their wild populations particularly susceptible to environmental changes. They are found across various parts of this island group, not just one isolated area.
These geckos primarily inhabit the southern part of Grande Terre, which is the main island of New Caledonia. Disconnected populations also exist on the Isle of Pines and several smaller surrounding islets. Their presence in these regions highlights their reliance on the specific ecological conditions found there.
Native Environment
Crested geckos primarily inhabit tropical rainforests and dense shrubland. They are largely arboreal, spending most of their lives in trees and elevated vegetation. This lifestyle involves navigating through the canopy and undergrowth, utilizing branches and foliage for shelter and foraging.
These geckos are found in the lower to middle layers of the forest, often between 1 and 4 meters (approximately 3 to 13 feet) above the forest floor. They rely on abundant leaves, vines, and branches that provide both cover from predators and climbing opportunities. During the day, they rest in secure spots within high branches or dense vegetation, emerging at night to forage.
Climatic Conditions
The native habitat of crested geckos experiences a tropical climate characterized by consistent warmth and high humidity. New Caledonia has two main seasons: a hot and humid summer from November to March, and a cooler, drier winter from June to September. Temperatures remain moderate year-round, ranging between 20°C (68°F) and 26°C (79°F), with warmer months reaching up to 29°C (84.2°F).
Humidity levels in these rainforests are high, ranging from 70% to 85% depending on the season and location. This moisture contributes to the lush environment and is important for the geckos’ health, as they absorb water through their skin and by licking droplets from surfaces. Significant rainfall is also a feature of their habitat, with the wet season bringing substantial precipitation, especially on the eastern slopes of Grande Terre.