Sphaerodactylus williamsi
CR

Sphaerodactylus williamsi

Declining

Photo: (c) Museum of Comparative Zoology, Harvard University, niektóre prawa zastrzeżone (CC BY-NC-SA)

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Sphaerodactylus williamsi faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in the Dominican Republic. The species' extremely small population size and restricted distribution make it highly vulnerable to stochastic events and further habitat fragmentation. Invasive species introduction and potential climate change impacts on its specialized microhabitat requirements pose additional risks to this critically endangered gecko.

Threat summary

Habitat

This species inhabits dry forests and scrubland areas in the Dominican Republic, typically found in leaf litter and under rocks or logs in areas with specific microclimate conditions. It requires well-preserved native vegetation with adequate ground cover and moisture retention for foraging and shelter.

Forest· majorForest - Subtropical/tropical dry· majorMarine coastal/supratidal· major

Conservation measures underway

Site/area protectionSpecies recovery

Other threatened species in SPHAERODACTYLIDAE

EN

Sphaerodactylus semasiops

Declining
EN

Jamaican Tailspot Sphaero

Sphaerodactylus dacnicolor

Declining
EN

Northern Jamaica Banded Sphaero

Sphaerodactylus richardsoni

Declining
Sphaerodactylus cochranaeCR

Sphaerodactylus cochranae

Unknown

Threatened in Haiti

EN

Typhlops titanops

Declining
Cyprinodon bondiEN

Cyprinodon bondi

Unknown
VU

Golden Swallow

Tachycineta euchrysea

Declining
Coryphopterus eidolonVU

Coryphopterus eidolon

Unknown

Frequently asked questions

Why is Sphaerodactylus williamsi classified as Critically Endangered?
Sphaerodactylus williamsi is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Sphaerodactylus williamsi faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in the Dominican Republic. The species' extremely small population size and restricted distribution make it highly vulnerable to stochastic events and further habitat fragmentation. Invasive species introduction and potential climate change impacts on its specialized microhabitat requirements pose additional risks to this critically endangered gecko.
Where does Sphaerodactylus williamsi live?
Sphaerodactylus williamsi occurs in Haiti. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Sphaerodactylus williamsi?
The main threats to Sphaerodactylus williamsi are 5.3, ai-1, ai-2, and ai-3. The full IUCN-classified threat record for this species is detailed on the species page.

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