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Bullock’s Mountains False Toad

Telmatobufo bullocki


Bullock’s false toad is a rare and elusive species, usually found under logs in temperate beech woodland.

Extensive fieldwork by several herpetologists within the range of this species between 1992 and 2002 has turned up only a single adult (in 2002). A second individual was recently seen in early 2011. The stomach contents of the first individual described by scientists were examined and found to comprise the remains of cockroaches, other insects and spiders, as well as a considerable mass of plant material. The major threat to the species is clear cutting and afforestation (converting land not previously forested) with pine plantations, which causes siltation of streams (which, in turn, makes it harder for the larvae to feed). Bullock’s false toad occurs in the Parque Nacional Nahuelbuta, although there are no specific conservation measures ongoing for this species

  • Order: Anura
  • Family: Calyptocephalellidae
  • Population: Extremely rare
  • Trend: unknown
  • Size: 60-80mm

EDGE Score

EDGE Score: 6.36 (?)
ED Score: 35.02 (?)
GE / IUCN Red List (?)
Not Evaluated Data Deficient Least Concern Near Threatened Vulnerable Endangered Critically Endangered Extinct in the Wild Extinct


This species is endemic to Chile, found only in a few locations in the Nahuelbuta coastal range in the Arauco Province. It has an altitudinal range of 800-1,200 metres above sea level.

Habitat and Ecology

The Bullock’s false toad lives near fast-flowing streams that flow through temperate southern beech forest. Adults are found hiding under logs and they are known to breed in fast-flowing streams. The tadpoles are free swimming and feed by scraping algae from submerged rocks. The adults eat insects and also plant material, suggesting the frog has terrestrial feeding habits.

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Conservation Actions

For each key category of conservation action, we calculated a conservation attention score based on expert information. In this graph, a higher score means the action is being carried out more intensively over more of the species range. The colour shows how important each action is considered to be for the conservation of this species.

Engaging stakeholders
Addressing threats
Status of knowledge
Management plan
Capacity building
Behaviour change
Awareness raising
  Score: 100 means the activity occurs at high level across more than 75% of the species range
Very Low

Overall Conservation Attention

We combined all of the expert information on conservation actions to calculate an overall conservation attention score for this species. Please help us to reach our goal of establishing dedicated conservation attention at “High” levels for all EDGE species.

Very Low Low Medium High

More information

Recent studies have grouped all possible conservation activities for any species into nine key categories (Washington et. al 2015). For each action, we asked experts for each species to assess the extent to which that action is being carried out and how much of the species’ range that action occurs in. For each action we used these two pieces of information to calculate the conservation attention score per action. A score of 100 means that the action is being carried out to a high level across at least 75% of the species range. We then combined the scores for all actions into an overall conservation attention score for the species. The experts also judged how important each category was to the conservation of that particular species.

This wordcloud illustrates the threats facing this species. The size of each word indicates the extent of a species range that is affected by that threat (larger size means a greater area is affected). The colour of the word indicates how much that threat impacts the species (darker shades of red mean the threat is more severe).

Wood plantations Logging Agriculture

Threat wordcloud key:

Small area affected
Large area affected
Least severe
Most severe
Severity unknown
Source: The IUCN List of Threatened Species. Version 2017.1.
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