CR

Spinomantis nussbaumi

Declining

Overview

Spinomantis nussbaumi is a critically endangered frog species endemic to Madagascar, belonging to the family Mantellidae. This small arboreal frog is characterized by its distinctive spiny skin texture and specialized toe pads that enable it to navigate the forest canopy. The species has an extremely limited distribution range, found only in specific montane rainforest areas of eastern Madagascar at elevations between 900-1,200 meters.

Like many Malagasy amphibians, S. nussbaumi faces severe threats from rapid deforestation and habitat fragmentation driven by slash-and-burn agriculture, logging, and human settlement expansion. The species' restricted range makes it particularly vulnerable to environmental changes, as entire populations can be eliminated through localized habitat destruction.

Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that can disrupt breeding cycles and reduce suitable habitat. The frog's dependence on pristine forest conditions means that even minor habitat degradation can significantly impact population viability. Conservation efforts for S.

nussbaumi are primarily focused on habitat protection through the establishment and management of protected areas within its range. Research initiatives aim to better understand the species' ecology, breeding requirements, and population dynamics to inform targeted conservation strategies. Ex-situ conservation programs may become necessary if habitat loss continues at current rates, though in-situ habitat preservation remains the priority for long-term species survival.

Spinomantis nussbaumi faces severe threats from deforestation and habitat destruction caused by slash-and-burn agriculture, logging, and human encroachment into its montane rainforest habitat. The species' extremely limited geographic range makes entire populations vulnerable to localized habitat loss. Climate change compounds these pressures by altering the temperature and moisture conditions essential for this forest-dependent amphibian.

Threat summary

Habitat

Spinomantis nussbaumi inhabits montane rainforests in eastern Madagascar at elevations between 900-1,200 meters. The species requires pristine forest conditions with dense canopy cover and high humidity levels typical of undisturbed tropical montane ecosystems.

Forest - Subtropical/tropical moist lowland· major

Conservation measures underway

Site/area protectionSpecies recovery

Frequently asked questions

Why is Spinomantis nussbaumi classified as Critically Endangered?
Spinomantis nussbaumi 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. Spinomantis nussbaumi faces severe threats from deforestation and habitat destruction caused by slash-and-burn agriculture, logging, and human encroachment into its montane rainforest habitat. The species' extremely limited geographic range makes entire populations vulnerable to localized habitat loss. Climate change compounds these pressures by altering the temperature and moisture conditions essential for this forest-dependent amphibian.
Where does Spinomantis nussbaumi live?
Spinomantis nussbaumi occurs in Angola, Germany, and Madagascar. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Spinomantis nussbaumi?
The main threats to Spinomantis nussbaumi are 2.3, and 7.1. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.