Dryophytes

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Dryophytes
Karolina tree frog (Dryophytes cinereus)

Karolina tree frog ( Dryophytes cinereus )

Systematics
Order : Frog (anura)
Subordination : Neobatrachia
without rank: Tree frogs (arboranae)
Family : Tree frogs i. w. S. (Hylidae)
Subfamily : Hylinae
Genre : Dryophytes
Scientific name
Dryophytes
Fitzinger , 1843
Four males of Dryophytes andersonii at the Philadelphia Zoo
Dryophytes arenicolor in the Santa Catalina Mountains of Arizona, USA

Dryophytes is a genus of frogs from the family of tree frogs (Hylidae). For a long time they were included in the genus of tree frogs in the narrower sense ( Hyla ). In 2016, the genus Dryophytes was re-established to group together species from North America and East Asia.

features

As a rule, the frogs have a relatively smooth skin and are colored green, but there are numerous variants that are adapted to the colors of rock or earth for camouflage . The species of the genus Dryophytes , like the tree frogs from other genera and families, are adapted to life on trees. They are therefore placed together with them in the group of tree frogs (Arboranae). They have widened adhesive discs on their fingers and toes that allow them to climb trees.

distribution

The species occur in North America , east of the Sierra Nevada , from southern Canada to the Gulf of Mexico . In the highlands of Mexico its range reaches the states of Oaxaca , Chiapas and the bordering Guatemala . In East Asia , the far east of Russia , East China , the Korean Peninsula , Japan and the Ryūkyū Islands belong to their range.

Systematics and taxonomy

The genus Dryophytes belongs to the subfamily Hylinae within the family of the tree frogs (Hylidae). In this family there were numerous revisions in which several genera were newly described and further subfamilies were spun off. In 2016, the genus Dryophytes was re-established, but remains controversial as it was only compiled for biogeographical reasons to group species from North America and East Asia. On the other hand, there are hardly any morphological reasons for this separation. However, molecular genetic studies have shown that this group is monophyletic and that the species have some physiological properties in common.

The type species of the genus is Dryophytes versicolor .

species

There are currently 18 species described. Some of the species are endangered or are thought to be recently extinct . On the other hand, species believed to be lost have been rediscovered through intensive research. In the genus Dryophytes , Dryophytes bocourti ( synonym : Hyla bocourti ) from Guatemala is considered lost.

As of August 9, 2019

Whether Dryophytes suweonensis should be regarded as a separate species or should be synonymous with Dryophytes immaculatus is the subject of numerous studies. Likewise, Dryophytes ussuriensis is considered a synonym of Dryophytes japonicus in some systematic compilations . The species described as Hyla heinzsteinitzi from the Jerusalem area also belongs to Dryophytes japonicus and was introduced to Israel from the Far East .

gallery

  • Dryophytes avivoca

  • Dryophytes chrysoscelis

  • Dryophytes eximius

  • Dryophytes gratiosus in amplexus

  • Dryophytes japonicus

  • Dryophytes squirellus in the Okaloacoochee Slough Wildlife Management Area, Florida, USA

  • Dryophytes femoralis in the Okeefenokee National Wildlife Refuge, Georgia, USA

  • Two differently colored males of Dryophytes versicolor

  • Dryophytes wrightorum Arizona, USA

  • Dryophytes walkeri from Mexico

Individual evidence

  1. ↑ a b c William E. Duellman, Angela B. Marion & S. Blair Hedges: Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae). Zootaxa, 4101, 1, pp. 1–109, April 2016 doi : 10.11646 / zootaxa.4104.1.1
  2. ↑ J. Faivovich, MO Pereyra, MC Luna, A. Hertz, BL Blotto, CR Vásquez-Almazán, JR McCranie, DA Sánchez, D. Baêta, K. Araujo-Vieira, G. Köhler, B. Kubicki, JA Campbell, DR Frost, WC Wheeler & CFB Haddad: On the monophyly and relationships of several genera of Hylini (Anura: Hylidae: Hylinae), with comments on recent taxonomic changes in hylids. South American Journal of Herpetology, 13, pp. 1-32, 2018
  3. ↑ Jia-Yong Zhang, Bryan E. Luu, Dan-Na Yu, Le-Ping Zhang, Rasha Al-attar & Kenneth B. Storey: The complete mitochondrial genome of Dryophytes versicolor: Phylogenetic relationship among Hylidae and mitochondrial protein-coding gene expression in response to freezing and anoxia. International Journal of Biological Macromolecules, 132, pp. 461-469, 2019
  4. ↑ Darrel R. Frost: Dryophytes . Amphibian Species of the World: an Online Reference. Version 6.0. Electronic Database accessible at American Museum of Natural History, New York 1998-2019, accessed August 9, 2019.
  5. ↑ Dryophytes bocourti in the IUCN Red List of Endangered Species .

Web links

  • Darrel R. Frost: Dryophytes . Amphibian Species of the World: an Online Reference. Version 6.0. Electronic Database accessible at American Museum of Natural History, New York 1998-2019, accessed August 9, 2019.