Assessment Notes

Justification

Known from Amazonas state in Venezuela, Craterellus orinocensis is a species of lowland forest. While there has been little apparent habitat loss within its range, suggesting a stable population, the population size could still be small. Further work to confirm its full distribution is required, but it is unlikely to warrant a listing under a high threat category (thus it would not be anything from Least Concern to Critically Endangered; and so could not be assessed as Data Deficient). Precautionarily assuming that it is restricted to this state a population size estimate of 1,000-5,000 mature individuals means that it approaches the thresholds for listing as threatened under criterion D1. Thus it is assessed as Near Threatened under this criterion. It is however possible that it occurs more widely, and further research is needed.

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Geographic range

Craterellus orinocensis is known from Amazonas in Venezuela. First described from 'Raudal d'Atures' (Patouillard and Gaillard 1888), other published records come from Atabapo (see Wilson et al. 2012, Henkel et al. 2014). Research to confirm whether it occurs in adjacent areas of Colombia or Brazil would be useful.

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Population and Trends

With only very limited forest cover loss within Amazonas state (Venezuela) over recent years (see World Resources Institute 2023), it is suspected that the population is stable. If the species were to be restricted to the state, however, the population size could be small. Based on the amount of suitable habitat within the known range there is the potential for c. 100 sites within the state, each potentially containing one to five genets. Based on Dahlberg and Mueller (2011), each genet would represent 10 mature individuals and so the population size could fall in the range of 1,000-5,000 mature individuals. Confirmation of the species' presence in adjacent areas of Colombia or Brazil, or indeed in additional areas of Venezuela could increase this estimate (potentially significantly).

Population Trend: Stable

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Habitat and Ecology

This is a terrestrial species that grows in Amazonian forest, including riparian forest (Patouillard and Gaillard 1888).

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Threats

The Amazonas region of Venezuela has seen relatively little forest cover loss over recent years (see World Resources Institute 2023), and so it is suspected that there has been little impact on this species.

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Conservation Actions

Further research is required to gain a clearer knowledge of the full distribution of this species, which will then aid in estimations of the population size and trend.

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Use and Trade

No use/trade has been noted.

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Source and Citation

Westrip, J.R.S. & Vasco-Palacios, A.M. 2025. Craterellus orinocensis. The IUCN Red List of Threatened Species 2025: e.T266986651A266986814. Accessed on 25 November 2025.

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• Country occurrence