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Assessment Results




© 2017 Simon J. Tonge (1 of 6 )

AmphibiaWeb species account




IUCN Red List assessment


Conservation Needs Assessment

Leptodactylus fallax ,   Mountain Chicken
Assessed for:  Dominica   on: 26 Mar 2011   by: AArk/ASG Assessment Workshop  
Assessment Status: Completed  
Order:   Anura     Family:   Leptodactylidae

IUCN Global Red List:   Critically Endangered (CR)   
IUCN National Red List:   (not assessed)   
Distribution:     Dominica, Guadeloupe, Martinique, Montserrat, Saint Kitts and Nevis  
Evolutionary Distinctiveness score:   12.5287915830805 
Recommended Conservation Actions:   Rescue  , In Situ Conservation  , In Situ Research  , Conservation Education  , Biobanking   
Additional Comments:    

Question #Short NameQuestion TextResponseComments
1 Extinction risk Current IUCN Red List category. [Data obtained from the IUCN Red List.] Critically Endangered (CR)
2 Possibly extinct Is there a strong possibility that this species might be extinct in the wild? No
3 Phylogenetic significance The taxon’s Evolutionary Distinctiveness (ED) score, as generated by the ZSL EDGE program. (These data are added by AArk staff, and are not editable by Assessors). ED value < 20
4 Protected habitat Is a population of at least 50% of the individuals of the taxon included within a reliably protected area or areas? No
5 Habitat for reintroduction Does enough suitable habitat exist, either within or outside of currently protected areas that is suitable for reintroduction or translocation? Yes
6 Previous reintroductions Have reintroduction or translocation attempts been made in the past for this species? Yes, but outcome is unknown Re-introduction has taken place on Montserrat. Also released in Puerto Rico in the 1960s for food, but this failed. Is being re-introduced into known chytrid habitats as a study species into mitigating chytrid (R. Gibson, pers. comm. March 2011).
7 Threat mitigation Are the threats facing the taxon, including any new and emerging threats not considered in the IUCN Red List, potentially reversible? Threats cannot/will not be reversed in time
8 Over-collection from the wild Is the taxon suffering from unsustainable 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 Chytrid has been the largest threat, but collection for food has alos decreased numbers.
9 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? No There has been 99% population decline on Montserrat in the last ten years (R. Gibson, pers. comm. March 2011).
10 Biological distinctiveness Does the taxon exhibit, for example, a distinctive reproductive mode, behaviour, aspect of morphology or physiology, within the Class Amphibia? Aspect of biology identified that is unique to species This species has a unique reproductive biology.
11 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? Yes Is on the Dominican coat of arms.
12 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 Class Amphibia? Research dependent upon < 6 species (incl. this taxon)
13 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? Yes Current research is underway into chytrid migiation, disease resistance, radio-telemetry etc.
14 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
15 Captive breeding Has this species been successfully maintained and bred in captivity? Yes, bred to F2
16 Educational potential Is the species especially diurnal/active/colourful and therefore suited to be an educational ambassador for conservation of this group of species? Yes
17 Mandate Is there an existing conservation mandate recommending the ex situ conservation of this taxon? Yes
18 Range State approval Would a proposed ex situ initiative for this species be supported (and approved) by the range State (either within the range State or out-of-country ex situ)? Yes
19 Founder specimens Are sufficient animals of the taxon available or potentially available (from wild or captive sources) to initiate the specified ex situ program? No Research into availability of founders needs to be prioritised.
20 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)? No Research into species validity needs to be prioritised.

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