Dendropsophini

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Dendropsophini
Flickr - ggallice - Clown treefrog.jpg
Dendropsophus bifurcus
Pseudis bolbodactyla01a.jpg
Pseudis bolbodactyla
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Subfamily: Hylinae
Tribe: Dendropsophini
Fitzinger, 1843
Type genus
Dendropsophus
Fitzinger, 1843
Genera

9 genera (see text)

Synonyms

Dendropsophini is a tribe of small neotropical tree frogs in the subfamily Hylinae. They are distributed from southern Mexico, throughout Central America, and down South America (including Trinidad) to northern Argentina and Uruguay. Removed from the synonymy of Hylinae in 2016, [1] this taxon was formerly considered its own subfamily before being reclassified as a tribe. [2] As defined by Favovich et al. in 2005, the tribe Dendrosophini contains the members of three former subfamilies within the Hylidae prior to taxonomic rearrangement: Dendropsophinae, Pseudinae, and Scinaxinae. [3]

Contents

Taxonomy

Genera

The following genera are included in the tribe Dendropsophini: [1] [3] [4] [5]

Evolution

The tribe name comes from the Greek word dendron which means "tree" and psophos which means "sound" or "noise," referring to how some of these frogs are more easily heard from up in the trees than seen. They first evolved during the Eocene 39.1–50.8 Mya and diversifying during the early Oligocene 25.3–38.5 Mya. [1]

The sister taxon of the pseudines (formerly the subfamily Pseudinae) are the dendropsophines (containing only Dendropsophus and Xenohyla), splitting apart from them during early Oligocene 25.8–38.7 Mya. Dendropsophines remained tree frogs and diversified greatly, while Pseudine frogs transitioned to aquatic ecosystems. Scarthyla is the oldest and most hylid-like of the pseudines, originating in the central Amazon basin and being restricted to the Guiana region in modern times. Lysapsus and Pseudis diverged during the early Miocene 18.4–24.6 Mya and have since spread down to the Chaco region that is drier and less suited for most tree frogs. Scinaxine frogs evolved approximately 42.0–56.4 Mya during the Oligocene. The most primitive of the Scinaxine frogs is Sphaeorhynchus, which remained in the Atlantic Coastal Forest of Brazil while the other lineages evolved into Julianus in the southeast, Ololygon also in the Atlantic Coastal Forest, and Scinax in the Amazon Basin. [6]

Description

There are only two dendropsophines. Xenohyla is confined to only coastal Brazil, while the range of Dendropsophus is much larger. Xenohyla has 2n=24 chromosomes while Dendropsophus has 2n=30 chromosomes. [1]

Pseudines are notable for because despite being tree frogs, they have convergently evolved with true frogs and have lost most of their tree dwelling traits, becoming semi-aquatic or aquatic. [7] Their name references this similarity, with Pseudis coming from the Greek ψεῦδος (pseudos) which means "false" or "pretending". This is evident in how the intercalary elements, which are the spaces in between a frog's digits, have become ossified in order to strengthen them and help them swim in the water more efficiently. Normally in tree frogs, these intercalary elements remain unossified in order to allow their hands and feet to be flexible. [6] [8] They also have a unique ligament cap that connects their knee to their pelvis that has not yet been seen in any other type of frog. [9] These frogs have a chromosome component of 2n = 24, the exceptions being Scarthyla goinorum with 2n = 22 and Pseudis cardosoi with 2n = 28. [10] In the wild they are preyed on by a variety of animals, including aquatic insects, spiders, and birds such as the buff-necked ibis and large-billed tern. [11]

The scinaxines are small to medium-sized frogs with pointy snouts, and often stowaway on products such as house plants and fruit. Because of this, two species of Scinax have been introduced outside of their native range, with Scinax quinquefasciatus on the Galapagos Islands [12] and Scinax ruber on St. Lucia, Martinique, and Puerto Rico. [13]

Related Research Articles

<span class="mw-page-title-main">Hylidae</span> Family of frogs

Hylidae is a wide-ranging family of frogs commonly referred to as "tree frogs and their allies". However, the hylids include a diversity of frog species, many of which do not live in trees, but are terrestrial or semiaquatic.

<i>Scinax</i> Genus of amphibians

Scinax is a genus of frogs in the family Hylidae found in eastern and southern Mexico to Argentina and Uruguay, Trinidad and Tobago, and Saint Lucia. These are small to moderate-sized tree frogs, drably colored. Duellman and Wiens resurrected this genus in 1992. The name originates from the Greek word skinos, meaning quick or nimble.

<i>Sphaenorhynchus</i> Genus of amphibians

Sphaenorhynchus is a genus of frogs in the family Hylidae. They are also known as lime treefrogs or hatchet-faced treefrogs. They are found in the Amazon and Orinoco River basins of South America, the Guianas, Trinidad, and southern and eastern Brazil. The majority of the species are associated with the Atlantic Forest domain in Brazil.

<i>Pseudis</i> Genus of amphibians

Pseudis is a genus of South American frogs in the family Hylidae. They are often common and frequently heard, but easily overlooked because of their camouflage and lifestyle, living in lakes, ponds, marshes and similar waters with extensive aquatic vegetation, often sitting at the surface among plants or on floating plants, but rapidly diving if disturbed. Whereas the adults are medium-sized frogs, their tadpoles are large; in some species the world's longest.

<span class="mw-page-title-main">Spikethumb frog</span> Genus of amphibians

Spikethumb frogs are a genus (Plectrohyla) of frogs in the family Hylidae found in Central America from southern Mexico through Guatemala and northern El Salvador to central and northern Honduras. A major revision of the Hylidae moved an additional 21 species to this genus from the genus Hyla. The additional species moved to Plectrohyla were identified as the Hyla bistincta group, also called the Plectrohyla bistincta group; a separate group from the initial Plectrohyla guatemalensis group. This phylogenetic classification was later revised by moving the Plectrohyla bistincta group from the genus Plectrohyla into a new genus called Sarcohyla. Meanwhile, the guatemalensis group remained in Plectrohyla. They are called spikethumb because of the spike on their thumbs, which is called a prepollex. The genus name comes from the Greek word plēktron ("spur") and hyla.

<i>Tlalocohyla</i> Genus of amphibians

Tlalocohyla is a genus of frogs in the family Hylidae, also known as rain treefrogs or Middle American yellow-bellied treefrogs. They occur in Middle America between Mexico and Costa Rica. This genus was created in 2005 following a major revision of the Hylidae. The five species in this genus were previously placed in the genus Hyla.

<i>Dendropsophus</i> Genus of amphibians

Dendropsophus is a genus of frogs in the family Hylidae. They are distributed in Central and South America, from southern Mexico to northern Argentina and Uruguay. They are sometimes known under the common name Fitzinger neotropical treefrogs or yellow treefrogs

<span class="mw-page-title-main">Knife-footed frog</span> Species of amphibian

The knife-footed frog is a species of burrowing frog in the family Hylidae. It is endemic to Australia, where it is found over a wide area in the north of the continent.

<i>Dendropsophus marmoratus</i> Species of frog

Dendropsophus marmoratus is a species of frog in the family Hylidae. It is found in the Amazon rainforest and montane forests in the eastern piedmont, in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Its natural habitats are subtropical or tropical moist lowland forests, intermittent freshwater marshes, and heavily degraded former forest. "Marmoratus" in Latin means "marble," perhaps referring to the dorsal coloring pattern. It is threatened by habitat loss.

<i>Pithecopus rohdei</i> Species of frog

Pithecopus rohdei, also known as Rohde's leaf frog, Rohde's frog, and Mertens' leaf frog, is a species of frog in the subfamily Phyllomedusinae. The species was previously placed in the genus Phyllomedusa. The species is endemic to southeastern Brazil and occurs at elevations up to 1000 meters above sea level.

<i>Scarthyla</i> Genus of frogs

Scarthyla is a genus of tree frogs, the family Hylidae. They are found in the upper Amazon Basin of Bolivia, Peru, and Brazil and northward through Colombia and Venezuela to the Caribbean lowlands. They are sometimes known as Madre de Dios treefrogs and South American aquatic treefrogs. They are semiaquatic.

<span class="mw-page-title-main">Pelodryadinae</span> Subfamily of amphibians

Pelodryadinae, also known as Australian treefrogs, is a subfamily of frogs found in the region of Australia and New Guinea, and have also been introduced to New Caledonia, Guam, New Zealand, and Vanuatu.

<span class="mw-page-title-main">Phyllomedusinae</span> Subfamily of amphibians

Phyllomedusinae is a subfamily of hylid tree frogs found in the Neotropics commonly called leaf frogs. Formerly, they were often considered as their own family, Phyllomedusidae.

<span class="mw-page-title-main">Hylinae</span> Subfamily of amphibians

Hylinae is a large subfamily of "tree frogs", family Hylidae.

<i>Ranoidea</i> (genus) Genus of amphibians

Ranoidea is a genus of frogs in the subfamily Pelodryadinae. They are found in Australia, New Guinea, and two nearby groups of islands: the Maluku Islands, and the Louisiade Archipelago. The circumscription of this taxon is still controversial.

<i>Dryophytes</i> Genus of amphibians

Dryophytes is a genus of Ameroasian tree frogs in the family Hylidae. They are found mostly in North America, but the genus also includes three species found in eastern Asia.

<i>Pithecopus</i> Genus of amphibians

Pithecopus is a genus of frogs in the subfamily Phyllomedusinae. Species of the genus Pithecopus are found in tropical South America east of the Andes, from southern Venezuela to northern Argentina. Resurrected from the synonymy of Phyllomedusa in 2016, it corresponds to the former Phyllomedusa hypochondrialis group. Its sister group is Callimedusa.

<i>Sarcohyla</i> Genus of amphibians

Sarcohyla is a genus of frogs in the family Hylidae. It is endemic to Mexico and is found in the montane parts of the country between Durango in the north and Guerrero in the south. These frogs typically occur in pristine habitats along streams in pine-oak woodland at elevations between 1,500 and 3,100 m above sea level. The generic name is derived from the Greek sarkodes meaning "fleshy" in combination with Hylas and refers to the thick, glandular skin characteristic of most of the species in the genus.

<i>Rheohyla</i> Genus of amphibians

Rheohyla is a genus of frogs in the family Hylidae. As currently recognized, it is monotypic, containing only Rheohyla miotympanum, also known as the small-eared hyla or small-eared treefrog. However, the nominal species likely is a complex of more than one species. It is endemic to eastern and central Mexico. The generic name refers to streams, the breeding habitat of this frog. The specific name is derived from Greek meion, a diminutive prefix, together with Greek tympanon (='drum') and refers to the small tympanum.

<i>Julianus</i> (frog) Genus of frogs

Julianus is a genus of tree frogs in the family Hylidae. They are found in southeastern Brazil, Uruguay, and northeastern Argentina. This genus is considered poorly defined and is regarded by most to merely be a synonym of Scinax.

References

  1. 1 2 3 4 Duellman, William E.; Marion, Angela B. & Hedges, S. Blair (2016). "Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae)". Zootaxa. 4104 (1): 1–109. doi:10.11646/zootaxa.4104.1.1. PMID   27394762.
  2. "Hylinae Rafinesque, 1815 | Amphibian Species of the World". amphibiansoftheworld.amnh.org. Retrieved 2023-02-16.
  3. 1 2 Julián., Faivovich; B., Haddad, Célio F.; A., Garcia, Paulo C.; R., Frost, Darrel; A., Campbell, Jonathan; Ward., Wheeler (2005). "Systematic review of the frog family Hylidae, with special reference to Hylinae : phylogenetic analysis and taxonomic revision. Bulletin of the AMNH ; no. 294". hdl:2246/462.{{cite journal}}: Cite journal requires |journal= (help)CS1 maint: multiple names: authors list (link)
  4. Frost, Darrel R. (2020). "Dendropsophinae Fitzinger, 1843". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001 . Retrieved 30 July 2020.
  5. "Hylinae Rafinesque, 1815 | Amphibian Species of the World". amphibiansoftheworld.amnh.org. Retrieved 2023-02-16.
  6. 1 2 Duellman; et al. (19 April 2016). "Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae)" (PDF). Zootaxa. 4104 (1): 1–109. doi:10.11646/zootaxa.4104.1.1. PMID   27394762 via The Center for North American Herpetology.
  7. Duellman; et al. (19 April 2016). "Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae)" (PDF). Zootaxa. 4104 (1): 1–109. doi:10.11646/zootaxa.4104.1.1. PMID   27394762 via The Center for North American Herpetology.
  8. Manzano; et al. (December 2007). "Intercalary elements, treefrogs, and the early differentiation of a complex system in the Neobatrachia". The Anatomical Record. 290 (12): 1551–1567. doi:10.1002/ar.20608. hdl: 11336/54150 . PMID   17957750. S2CID   19035776 via American Association for Anatomy.
  9. Manzano; et al. (September 2005). "The iliosacral articulation in Pseudinae (Anura : Hylidae)". Herpetologica. 61 (3): 259–267. doi:10.1655/04-28.1. hdl: 11336/80770 . S2CID   85954675 via ResearchGate.
  10. Duellman; et al. (19 April 2016). "Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae)" (PDF). Zootaxa. 4104 (1): 1–109. doi:10.11646/zootaxa.4104.1.1. PMID   27394762 via The Center for North American Herpetology.
  11. Filho; et al. (April 2019). "Escape or be Preyed: New Records and Current Knowledge on Predators of Pseudinae Frogs (Anura: Hylidae) in South America". Acta Biológica Colombiana. 24 (2): 397–402. doi: 10.15446/abc.v24n2.74650 . S2CID   165083717 via ResearchGate.
  12. "Scinax quinquefasciatus Fowler, 1913". Charles Darwin Foundation. Retrieved 15 February 2022.
  13. "Scinax ruber (Laurenti, 1768)". U.S. Geological Survey, Nonindigenous Aquatic Species Database. 18 April 2019. Retrieved 15 February 2022.