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Assessment Results

Chiropterotriton cracens

Assessed for: Mexico   on: 01 Jun 2020   by: AArk/ASG Assessment Workshop
Order: Caudata Family: Plethodontidae

IUCN Global Red List: Endangered (EN)
IUCN National Red List: (not assessed)
Distribution: Mexico
Evolutionary Distinctiveness score: 20.85665438
Sean Rovito © 2015 Sean Michael Rovito (1 of 5)

Recommended Conservation Actions:

Additional Comments:: Proactive, precautionary steps should be taken to detect the arrival of Bsal in Mexico through the swabbing of both wild and imported salamanders, in addition to a total ban on the importation of non-native salamanders (Mexico Red List Assessment Workshop October 2019).

Question # Short Name Question Text Response Comments
1 Extinction risk Current IUCN Red List category. [Data obtained from the IUCN Red List.] Vulnerable (VU) Listed as Vulnerable because despite being confined to a well-managed protected, it has a very restricted distribution (EOO of 42 km2) and likely small population size that makes this species susceptible to the effects of stochastic events such as disease outbreaks or climate change impacts which could drive it to Critically Endangered in a very short time. New information on this species' distribution, population status, and threats are sufficient for removing this species from Endangered into Vulnerable as low numbers for this species have been deemed natural and it is currently well-protected.
2 Possibly extinct Is there a strong possibility that this species might be extinct in the wild? No / unlikely
3 Phylogenetic significance The taxon’s Evolutionary Distinctiveness (ED) score, as generated by the ZSL EDGE program. (These data are not editable by Assessors). ED value 20 - 50
4 Protected habitat Is a population of at least 50% of the individuals of the taxon included within a well-managed or reliably protected area or areas? Yes / probably This species is known only from the Reserva de la Biósfera El Cielo in Tamaulipas
5 Habitat for reintroduction, conservation translocation or supplementation Does enough well-managed and reliably protected habitat exist, either within or outside of currently protected areas that is suitable for conservation translocation, including population restoration or conservation intoduction? Yes / probably Reserva de la Biósfera El Cielo
6 Previous reintroductions Have reintroduction or translocation attempts been made in the past for this species? No
7 In situ conservation activities Are any in situ conservation actions currently in place for this species? (Only required if a Red List Assessment has not been completed, or if new actions have been implemented since the last Red List Assessment. (Information from the Conservation Actions section of the Red List assessment should be reviewed and considered when answering this question.). Yes / probably Comprehensive management at El Cielo Reserve
8 In situ conservation activities Are additional in situ conservation actions (e.g. habitat restoration and/or protection, control of invasive species, national legislation etc.) required to help conserve this species in the wild? Yes / probably Continuation of rigorous management of the existing parks is the best guarantee for the conservation of this species.
9 In situ research Is additional in situ research required to better understand the species, e.g. distribution, population trends, natural history etc.? Yes More information is needed on this species' distribution, population status, and ecology.
10 Threat mitigation Are the threats facing the taxon, including any new and emerging threats not considered in the IUCN Red List, potentially reversible? Species is effectively protected This species is not likely to be threatened by habitat loss given that its entire known range is located within the well-protected Reserva de la Biósfera El Cielo.
11 Over-collection from the wild Is the taxon suffering from collection within its natural range, either for food, for the pet trade or for any other reason, which threatens the species’ continued persistence in the wild? No / unlikely
12 Population recovery Is the known population of this species in the wild large enough to recover naturally, without ex situ intervention if threats are mitigated? Unknown It is naturally uncommon. It was recorded as recently as 2018 (S. Rovito pers. comm. October 2019).
13 Action plans Does an Action Plan for the species already exist, or is one currently being developed? No
14 Biological distinctiveness Does the taxon exhibit, for example, a distinctive reproductive mode, behaviour, aspect of morphology or physiology, within the Order to which it belongs (e.g. Anura, Passeriformes etc.)? No aspect of biology known to be exceptional
15 Cultural/socio-economic importance Does the taxon have a special human cultural value (e.g. as a national or regional symbol, in a historic context, featuring in traditional stories) or economic value (e.g. food, traditional medicine, tourism) within its natural range or in a wider global context? No
16 Scientific importance Is the species vital to current or planned research other than species-specific ecology/biology/conservation? (e.g. human medicine, climate change, environmental pollutants and conservation science), within the Order to which it belongs (e.g. Anura, Passeriformes etc.)? No research dependent on this species
17 Ex situ research Does conserving this species (or closely related species) in situ depend upon research that can be most easily carried out ex situ? No
18 Ex situ conservation activities Is any ex situ research or other ex situ conservation action currently in place for this species? (Information from the Conservation Actions section of the Red List assessment should be reviewed and considered when answering this question.) No / unlikely
19 Husbandry analog required If an ex situ rescue program is recommended for this species, would an analog species be required to develop husbandry protocols first? No / unlikely
20 Husbandry analog Do the biological and ecological attributes of this species make it suitable for developing husbandry regimes for more threatened related species? i.e. could this species be used in captivity to help to develop husbandry and breeding protocols which could be used for a similar, but more endangered species at a later stage? No
21 Captive breeding Has this species been successfully bred and/or maintained in captivity? Not held in captivity to date
22 Conservation education/ecotourism potential Is the species especially diurnal, active or colourful, or is there an interesting or unusual aspect of its ecology that make it particularly suitable to be an educational ambassador for conservation of the species in the range country, either in zoos or aquariums or within ecotourism activities? No
23 Mandate Is there an existing conservation mandate recommending the ex situ conservation of this taxon? No
24 Range State approval If an ex situ initiative was proposed for this species, would it be supported (and approved) by the range State (either within the range State or out-of-country ex situ)? Yes / probably
25 Founder specimens Are sufficient animals of the taxon available or potentially available (from wild or captive sources) to initiate an ex situ program, if one was recommended? Unknown Research into availability of founders needs to be prioritised.
26 Taxonomic status Has a complete taxonomic analysis of the species in the wild been carried out, to fully understand the functional unit you wish to conserve (i.e. have species limits been determined)?

Citation: AArk/ASG Assessment Workshop. 2020. Conservation Needs Assessment for Chiropterotriton cracens, Mexico.
https://conservationneeds.org/(X(1)S(hkp1ldxglscvqoqrb1siwxmk))/Assessment/AssessmentResults?assessmentId=408&countryId=91&speciesId=911. Accessed 04 Jul 2020