Taxonomy

Animalia Chordata Vertebrata Amphibia Anura Hylidae Ptychohyla Ptychohyla macrotympanum

Taxonomic notes: This species was removed from synonymy of Ptychohyla euthysanota by Campbell and Smith (1992).

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Geographic Range

This species has a very disjunct distribution, with localities known in Northern Chiapas, Mexico at 500m -1700m asl., and then on the road to La Cumbre, Municipio de la Democracia, Huehuetenango in Guatemala at 600- 1000m asl.

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Population

In its previous assessment (2004) it was reported as common in its restricted range in Guatemala. Since then it has been found in Chiapas state where it is uncommon both on the Northern Highlands and a bit further south on the border of the Depresión Central and Meseta Central.

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Habitat

It occurs along, and reproduces in, streams in dry forest in Guatemala. In Mexico occurs in humid, premontane and Pine-oak-liquidambar forest.

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Use Trade

These is species is not being utilized

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Threats

The main threat is loss habitat caused by agricultural activities and expansion of urban areas in the Mexican portion of its range; in Guatemala it was considered tolerant to disturbed areas. In its previous assessment (2004) the species was deemed threatened by chytridiomycosis in Guatemala, where declines within species of the genus were reported then. This has not been the case in Mexico, where no reports of infection are known for this species.

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Specific Threats

  • 8.1.2 Named species
  • 2.1.2 Small-holder farming
  • 5.3.5 Motivation Unknown/Unrecorded
  • 8.1.2 Named species

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Conservation Actions

In Mexico occurs in Parque Nacional Cañon del Sumidero, but in Northern of Chiapas there are no protected areas and habitat protection is urgently needed. Habitat restoration activities are also needed. In addition to habitat management, a species management plan should be developed and implemented, including a monitoring program to follow population trends - an issue that is pressing because of the severe risk of chytridiomycosis. Development of sustainable economic alternatives for local communities is a necessary step to ease pressures on natural ecosystems. In light of the large distance between the Mexican and the Guatemalan localities, a taxonomic study is recommended, and more research is needed on the population size and distribution.

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Specific Actions

  • 3.2 Species recovery
  • 6.1 Linked enterprises & livelihood alternatives
  • 1.2 Resource & habitat protection
  • 1.1 Site/area protection

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Red List Rationale

Listed as Endangered because its known Area of Occupancy is thought to be less than 100 km2, it occurs in only 3-4 locations, and the habitat degradation reported in 2004 has continued and will continue into the near future.

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Bibliography

  • Campbell, J.A. and Smith, E.N. 1992. A new frog of the genus Ptychohyla (Hylidae) from the Sierra de Santa Cruz, Guatemala, and description of a new genus of Middle American stream-breeding treefrogs. Herpetologica: 153-167.
  • Mendelson III, J.R., Brodie Jr., E.D., Malone, J.H., Acevedo, M.E., Baker, M.A., Smatresk, N.J. and Campbell, J.A. 2004. Factors associated with the catastropic decline of a cloudforest frog fauna in Guatemala. International Journal of Tropical Biology: 991-1000.

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