Assessment Results
Ptychohyla dendrophasma
Order:
Anura
Family:
Hylidae
Synonym(s):
Hyla dendrophasma
Assessed for:
Guatemala
on:
30 Aug 2024
by:
AArk/ASG Guatemala Workshop
Authors:
Acevedo, M. E. ; Chang, M.J. ; Dahinten B. H. ; García, J.; López de Paz, E. ; Morales, J.R. ; Rivera, M. R. ; Ruano-Fajardo, G. ; Vázquez-Almazán, C. ; Zamora-Jerez, A.
IUCN Global Red List:
Critically Endangered (CR)
National Red List:
(not assessed)
Distribution:
Guatemala, Mexico
Evolutionary Distinctiveness score:
13.94773444
Recommended Conservation Actions:
Additional Comments:
Es importante enfatizar el potencial daño por el ingreso o introducción de especies de anfibios exóticas e invasoras (especies de la Lista Negra - CONAP) de anfibios a las poblaciones silvestres nativas
| Question # | Short Name | Question Text | Response | Comments |
| 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 / unlikely | Hay poca información disponible sobre el estado y las tendencias de la población de esta especie, ya que solo se conocía a partir de un único espécimen hembra recolectado en 1998. Varios viajes posteriores a la localidad tipo en 1999 y 2000 (M. Acevedo com. pers. Agosto de 2019 ), así como, 2008, 2010, 2012 y 2014 no han arrojado más individuos (C. Vásquez-Almazán com. pers. agosto 2019). Debido a su morfología (p. ej., extensas membranas), se cree que esta especie es una especie de dosel y, por lo tanto, es naturalmente difícil de encontrar (J. Campbell, comunicación personal, agosto de 2019). Entre 1998 - 2005 se realizaron búsqueda en localidad tipo sin lograr econtrar la especie (Carlos Vázquez Almazán, com. pers. 2024) En el 2021 se llevó a cabo una prospección para ubicar la especie por parte de Carlos Gaitán, Julio Romero y Gerber Guzmán y no lograron encontrar la especie (Taller CNA Guatemala 2024) |
| 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 | |
| 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? | No / unlikely | Esta endémica guatemalteca se conoce únicamente por el holotipo recolectado en Quebrada Sancapech, Finca San Francisco, en el departamento de Huehuetenango. |
| 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 introduction? | No / unlikely | |
| 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.). | No / unlikely | |
| 8 | In situ conservation activities | Are additional in situ conservation actions required to help conserve this species in the wild (e.g. habitat restoration and/or protection, control of invasive species, national legislation etc.)? | Yes / probably | Se requiere una mejor protección del hábitat en el sitio donde se sabe que se encuentraba esta especie. |
| 9 | In situ research | Is additional in situ research required to better understand the species, e.g. distribution, population trends, natural history etc.? | Yes | Se necesitan más estudios para determinar si la especie todavía sobrevive y si se encuentra en las proximidades de la localidad tipo. |
| 10 | Threat mitigation | Are the threats facing the taxon, including any new and emerging threats not considered in the IUCN Red List, potentially reversible? | Threats unlikely to be reversed in time to prevent further decline / extinction | Esta especie se encontró originalmente en el único pequeño fragmento de bosque existente en la zona, el cual está rodeado de tierras agrícolas ampliamente desmontadas. La deforestación es una gran amenaza para la especie, en parte debido a la tala incontrolada y la expansión de las plantaciones de café. El cambio climático también representa una amenaza para la especie, ya que las estaciones secas son cada vez más largas y ha habido una disminución de las precipitaciones y la humedad (C. Vásquez Almazán com. pers. agosto de 2019). La quitridiomicosis también es una amenaza potencial, ya que otras especies del género también han disminuido en Guatemala debido a los impactos de la enfermedad. |
| 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 | |
| 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 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 within the Order to which it belongs (e.g. Anura, Passeriformes etc.) e.g. human medicine, climate change, environmental pollutants and conservation science? | 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 | Es necesario dar prioridad a investigaciones acerca de la disponibilidad de fundadores. |
| 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)? | No | Debe darse prioridad a investigar la autenticidad de las especie. |
Citation:
Acevedo, M. E. ; Chang, M.J. ; Dahinten B. H. ; García, J.; López de Paz, E. ; Morales, J.R. ; Rivera, M. R. ; Ruano-Fajardo, G. ; Vázquez-Almazán, C. ; Zamora-Jerez, A. 2024. Conservation Needs Assessment for Ptychohyla dendrophasma, Guatemala
(AArk/ASG Guatemala Workshop).
https://conservationneeds.org/assessment/7102
Accessed 22 Feb 2025
