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Assessment Results




© 2013 Devin Edmonds (1 of 2 )

AmphibiaWeb species account




IUCN Red List assessment


Conservation Needs Assessment

Stumpffia tridactyla ,   Guibe's Stump-toed Frog
Assessed for:  Madagascar   on: 23 Jul 2015   by: Miguel Vences  
Assessment Status: Completed  
Order:   Anura     Family:   Microhylidae

IUCN Global Red List:   Data Deficient (DD)   
IUCN National Red List:   (not assessed)   
Distribution:     Madagascar  
Evolutionary Distinctiveness score:   19.8990465335466 
Recommended Conservation Actions:   In Situ Conservation  , In Situ Research  , Ex Situ Research  , Conservation Education   
Additional Comments:    

Question #Short NameQuestion TextResponseComments
1 Extinction risk Current IUCN Red List category. [Data obtained from the IUCN Red List.] Vulnerable (VU) According to extensive assessments (partly unpublished own data) it seems to be clear that this species is microendemic to higher elevations in Marojejy National Park, and specimens from other sites belong to genetically highly distinct undescribed species. Although higher elevation rainforests at Marojejy are still relatively save, due to increased rosewood exploitation in the Marojejy area, it might well be that also this species is suffering from habitat loss, and a threat status of VU is warranted.
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? Yes The species appears to be endemic to Marojejy National Park.
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 mid-elevational rainforests potentially suitable for this species occur elsewhere, but is either occupied by other Stumpffia or by populations of S. tridactyla.
6 Previous reintroductions Have reintroduction or translocation attempts been made in the past for this species? No
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 are reversible in time frame The species is as far as known mainly potentially suffering from habitat degradation, and this can be reversed by strictly enforcing conservation of forests in Marojejy National Park, and potentially by reforestation.
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
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? Yes
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 shared with < 6 other species This is one of the most strongly miniaturized species of frogs in Madagascar and in the world, with many striking morphological and probably physiological features related to this miniaturization.
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? No
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? No research dependent on this species
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 The life history and breeding biology of this and most other Stumpffia is largely unknown, and exceedingly difficult to study in the wild. Setting up a breeding colony of this or other relatedStumpffia could clarify many aspect of its biology that would be helpful in conservation management.
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? Yes Probably most of the tiny Stumpffia species are each other's analogs.
15 Captive breeding Has this species been successfully maintained and bred in captivity? Not held in captivity to date
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? No
17 Mandate Is there an existing conservation mandate recommending the ex situ conservation of this taxon? No
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)? No Given that the species (ensu tricto) only occurs in a National Park, a special permit would be needed to colelct specimens for ex situ breeding (and obtaining sufficient speciemens, especially females, would be extremely difficult).
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? Yes
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 All Stumpffia are in need of taxonomic revision, but S. tridactyla sensu stricto is comparatively well delimited.

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