The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T55447A11312970
Plectrohyla chryses, Golden Treefrog
Assessment by: Georgina Santos-Barrera, Luis Canseco-Márquez, Joseph
Mendelson III
View on www.iucnredlist.org
Citation: Georgina Santos-Barrera, Luis Canseco-Márquez, Joseph Mendelson III. 2006. Plectrohyla
chryses. The IUCN Red List of Threatened Species 2006: e.T55447A11312970.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Amphibia
Anura
Hylidae
Taxon Name: Plectrohyla chryses (Adler, 1965)
Common Name(s):
• English:
• Spanish:
Golden Treefrog
Rana-de Arbol Dorada
Taxonomic Source(s):
Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6.0 (7 July 2014).
Electronic Database. American Museum of Natural History, New York, USA. Available at:
http://research.amnh.org/herpetology/amphibia/index.html.
Taxonomic Notes:
This species was previously included in the genus Hyla but has recently been moved to the genus
Plectrohyla (Faivovich et al. 2005).
Assessment Information
Red List Category & Criteria:
Critically Endangered A3ce ver 3.1
Year Published:
2006
Date Assessed:
January 31, 2006
Justification:
Listed as Critically Endangered because of a projected decline greater than 80% over the next ten years,
due to a decline in the quality and extent of the species' habitat, and the effects of chytridiomycosis.
Previously Published Red List Assessments
2004 – Endangered (EN)
Geographic Range
Range Description:
This species occurs in Carrizal de Bravos, central-western Guerrero, Mexico. It is found from 2,3402,600m asl.
Country Occurrence:
Native: Mexico
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
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Distribution Map
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
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Population
This is a very rare species.
Current Population Trend: Decreasing
Habitat and Ecology (see Appendix for additional information)
It is associated with humid cool areas in wet pine-oak-fir cloud forest. Breeding takes place in streams.
Systems: Terrestrial, Freshwater
Threats (see Appendix for additional information)
The disturbance and transformation of the species' forest habitat is the major threat, mainly as a result
of logging and the continuing expansion of human settlements in the region. Chytridiomycosis might
also be a threat, since it is a high-elevation stream-dweller, and declines due to the disease have already
been detected amongst other species of this genus.
Conservation Actions (see Appendix for additional information)
Legal protection of the Natural Park in Guerrero is required since it is not in a biosphere reserve and
currently lacks any management plan. Further survey work is required to monitor the population status
and trends of this species; also, in view of the threat of chytridiomycosis, ex-situ populations might need
to be established. This species is protected by Mexican law under the "Special Protection" category (Pr).
Credits
Assessor(s):
Georgina Santos-Barrera, Luis Canseco-Márquez, Joseph Mendelson III
Reviewer(s):
Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson,
Neil Cox and Bruce Young)
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
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Bibliography
Duellman, W.E. 2001. The Hylid Frogs of Middle America. Society for the Study of Amphibians and
Reptiles, Ithaca, New York, USA.
Faivovich, J., Haddad, C.F.B., Garcia, P.C.O., Frost, D.R., Campbell, J.A. and Wheeler, W.C. 2005.
Systematic review of the frog family Hylidae, with special reference to Hylinae: Phylogenetic analysis and
taxonomic revision. Bulletin of the American Museum of Natural History 294: 1-240.
IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May
2006.
Mendelson III, J.R. and Toal III, K.R. 1996. A new species of Hyla (Anura: Hylidae) from the Sierra Madre
del Sur of Oaxaca, Mexico, with comments on Hyla chryses and Hyla mykter. Journal of Herpetology:
326-333.
Citation
Georgina Santos-Barrera, Luis Canseco-Márquez, Joseph Mendelson III. 2006. Plectrohyla chryses. The
IUCN Red List of Threatened Species 2006: e.T55447A11312970.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
-
Suitable
-
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent
Rivers/Streams/Creeks (includes waterfalls)
-
Suitable
-
Threats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Threat
Timing
Scope
Severity
Impact Score
1. Residential & commercial development -> 1.1.
Housing & urban areas
Ongoing
-
-
-
Stresses:
1. Ecosystem stresses -> 1.1. Ecosystem conversion
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
1. Ecosystem stresses -> 1.1. Ecosystem conversion
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
2. Species Stresses -> 2.1. Species mortality
2. Agriculture & aquaculture -> 2.1. Annual &
perennial non-timber crops -> 2.1.3. Agro-industry
farming
5. Biological resource use -> 5.3. Logging & wood
harvesting -> 5.3.5. Motivation
Unknown/Unrecorded
8. Invasive & other problematic species & genes ->
8.1. Invasive non-native/alien species -> 8.1.2.
Named species (Batrachochytrium dendrobatidis)
-
-
-
-
-
-
Conservation Actions in Place
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Conservation Actions in Place
In-Place Land/Water Protection and Management
Occur in at least one PA: Yes
Conservation Actions Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
5
Conservation Actions Needed
1. Land/water protection -> 1.2. Resource & habitat protection
2. Land/water management -> 2.1. Site/area management
3. Species management -> 3.4. Ex-situ conservation -> 3.4.1. Captive breeding/artificial propagation
5. Law & policy -> 5.4. Compliance and enforcement -> 5.4.2. National level
Research Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Research Needed
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.5. Threats
Additional Data Fields
Population
Population severely fragmented: No
© The IUCN Red List of Threatened Species: Plectrohyla chryses – published in 2006.
http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55447A11312970.en
6
The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™