VU

Rollizo

Characidium phoxocephalum

Unknown

Overview

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

The Rollizo faces severe pressure from agricultural expansion and cattle ranching activities that degrade its freshwater habitats through sedimentation and chemical runoff. Dam construction and water diversions for irrigation have fragmented river systems, isolating populations and reducing water quality. Mining operations in the watershed contribute heavy metals and sediments that contaminate the clear, fast-flowing waters this species requires for survival.

Threat summary

Habitat

The Rollizo inhabits clear, fast-flowing streams and small rivers with rocky or sandy substrates in South American freshwater systems. This species prefers well-oxygenated waters with moderate to strong currents, typically found in headwater streams and tributaries of larger river basins.

FRESHWATER· major

Threatened in Colombia

EN

Helena's Marsupial Frog

Gastrotheca helenae

Stable
EN

Varied White-fronted Capuchin

Cebus versicolor

Declining
VU

Styrax duidae

Declining
EN

Baird's Tapir

Tapirus bairdii

Declining

Frequently asked questions

Why is Rollizo classified as Vulnerable?
Rollizo is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Rollizo faces severe pressure from agricultural expansion and cattle ranching activities that degrade its freshwater habitats through sedimentation and chemical runoff. Dam construction and water diversions for irrigation have fragmented river systems, isolating populations and reducing water quality. Mining operations in the watershed contribute heavy metals and sediments that contaminate the clear, fast-flowing waters this species requires for survival.
Where does Rollizo live?
Rollizo occurs in Colombia. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Rollizo?
The main threats to Rollizo are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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