Hyla orientalis Bedriaga, 1890

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Hyla > Species: Hyla orientalis

Hyla arborea var. orientalis Bedriaga, 1890 "1889", Bull. Soc. Imp. Nat. Moscou, N.S.,, 3: 473. Syntypes: Not stated, presumably originally ZMM. Type locality: "Charkow [= Kharkov, Ukraine], [and] Tultscha", Romania.

Hyla arborea schelkownikowi Chernov, 1926, Bull. Sci. Inst. Explor. Caucase Nord, 1: 70. Syntypes: Deposition not stated but MNKNU 26237 noted as a surviving syntype and designated lectotype by Vedmederya, Zinenko, and Barabanov, 2009, Russ. J. Herpetol., 16: 205. Type locality: Stpanavan, Armenia, and Kutaisi, Georgia. Lectotype from "Kutais" (= Kutaisi, Georgia) according to Vedmederya, Zinenko, and Barabanov, 2009, Russ. J. Herpetol., 16: 205. Distinctiveness from Hyla arborea arborea rejected by Schneider, 2004, Z. Feldherpetol., Suppl., 5: 9. Stöck, Dubey, Klütsch, Litvinchuk, Scheidt, and Perrin, 2008, Mol. Phylogenet. Evol., 49: 1019–1024, noted that the status of this taxon needed to be elucidated. Gvoždík, Moravec, Klütsch, and Kotlík, 2010, Mol. Phylogenet. Evol., 55: 1161, presented additional molecular evidence for this synonymy.

Hyla arborea gumilevskii Litvinchuk, Borkin, Rosanov, and Skorinov, 2006, Russ. J. Herpetol., 13: 199. Holotype: ZISP 2451, by original designation. Type locality: "Lenkoranka River, about 38°44 N 48°51 E, Lenkoran District, south-eastern Azerbaijan". Synonymy by Stöck, Dubey, Klütsch, Litvinchuk, Scheidt, and Perrin, 2008, Mol. Phylogenet. Evol., 49: 1019–1024.

Hyla orientalis — Stöck, Dubey, Klütsch, Litvinchuk, Scheidt, and Perrin, 2008, Mol. Phylogenet. Evol., 49: 1019–1024.

Hyla (Hyla) orientalis — Fouquette and Dubois, 2014, Checklist N.A. Amph. Rept.: 331, by implication. 

Common Names

Shelkovnikov's Tree Frog (Tuniyev, 1999, Adv. Amph. Res. Former Soviet Union, 3: 56).

Eastern Tree Frog (Stöck, Dufresnes, Litvinchuk, Lymberakis, Biollay, Berroneau, Borzée, Ghali, Ogielska, and Perrin, 2012, Mol. Phylogenet. Evol., 65: 1–9).

Caucasian Treefrog (Arakelyan, Danielyan, Corti, Sindaco, and Leviton, 2011, Herpetofauna of Armenia: 42).

Oriental Tree Frog (Safaei-Mahroo, Ghaffari, Fahimi, Broomand, Yazdanian, Najafi-Majd, Hosseinian Yousefkani, Rezazadeh, Hosseinzadeh, Nasrabadi, Mashayekhi, Motesharei, Naderi, and Kazemi, 2015, Asian Herpetol. Res., 6: 266).  

Distribution

Anatolian to European Türkiye and northeastern Greece and thence north to eastern Serbia, Romania and eastern Poland through western Belorus and Ukraine, Kaliningrad oblast and southwestern Russia and Crimea; Armenia and Azerbaijan; Hyrcanian forest of northern Iran (Gilan, Mazandaran and Golestan provinces); introduced in Latvia. 

Geographic Occurrence

Natural Resident: Armenia, Azerbaijan, Belarus, Bulgaria, Greece, Iran, Moldova, Poland, Romania, Russia, Serbia, Slovakia, Türkiye, Ukraine

Introduced: Latvia, Netherlands

Comment

Removed from the synonymy of Hyla arborea by Stöck, Dubey, Klütsch, Litvinchuk, Scheidt, and Perrin, 2008, Mol. Phylogenet. Evol., 49: 1019–1024, where it had been placed by Boulenger, 1898, Tailless Batr. Eur., 2: 248. Stöck, Dubey, Klütsch, Litvinchuk, Scheidt, and Perrin, 2008, Mol. Phylogenet. Evol., 49: 1019–1024, reported on the molecular phylogenetics of this species and noted areas of needed elucidation as well as the identify of populations physically situated in the European range between Hyla arborea and Hyla orientalis. Kaya and Simmons, 1999, Bioacoustics, 10: 175–190, described (as Hyla arborea) the advertisement call in Türkiye. See comment regarding the status of Hyla arborea shelkownikowi with respect to Hyla arborea arborea by Tuniyev, 1999, Adv. Amph. Res. Former Soviet Union, 3: 56. See account (as Hyla arborea) by Kuzmin, 1999, Amph. Former Soviet Union: 280–288. Kaya, 2001, Israel J. Zool., 47: 123–134, discussed (as Hyla arborea) distribution in Türkiye. Başoğlu and Özeti, 1973, Türkiye Amphibileri: 92–95, provided an account (as Hyla arborea) for the Turkish populations. Schneider, 2001, Zool. Middle East, 23: 61–69, documented the contact zone of Hyla "arborea" (presumably now Hyla orientalis) and Hyla savignyi in southern Türkiye. Pikulik, 1996, Zemnavodnyia Pauzuny: 106–108, provided an account (as Hyla arborea) for the Belarus population. Naumov, 2005, Acta Zool. Bulgarica, 57: 391, provided records for Bulgaria (as Hyla arborea). Litvinchuk, Borkin, Rosanov, and Skorinov, 2006, Russ. J. Herpetol., 13: 187–206, discussed genetic distance among populations (as Hyla arborea) in the Caucasus and nearby regions. Gvoždík, 2010, Herpetol. Notes, 3: 41–44, provided a record for Iran and discussed the range in Iran. Gvoždík, Moravec, Klütsch, and Kotlík, 2010, Mol. Phylogenet. Evol., 55: 1146–58, reported on the molecular phylogenetics of the species and redelimited the species. Speybroeck, Beukema, and Crochet, 2010, Zootaxa, 2492: 7, noted that only mtDNA supports recognition of this species, while no evidence from morphology or call has been detected to separate this taxon from Hyla arborea. Stöck, Dufresnes, Litvinchuk, Lymberakis, Biollay, Berroneau, Borzée, Ghali, Ogielska, and Perrin, 2012, Mol. Phylogenet. Evol., 65: 1–9, reported on the genetic diversity among populations and provided a dot map of the range. Arakelyan, Danielyan, Corti, Sindaco, and Leviton, 2011, Herpetofauna of Armenia: 42–43, provided a brief account for Armenia. Safaei-Mahroo, Ghaffari, Fahimi, Broomand, Yazdanian, Najafi-Majd, Hosseinian Yousefkani, Rezazadeh, Hosseinzadeh, Nasrabadi, Mashayekhi, Motesharei, Naderi, and Kazemi, 2015, Asian Herpetol. Res., 6: 257–290, reported on distribution and conservation status in Iran. Gvoždík, Canestrelli, García-París, Moravec, Nascetti, Recuero, Teixeira, and Kotlík, 2015, Mol. Phylogenet. Evol., 83: 143–155, reported on molecular phylogenetics and biogeography. Speybroeck, Beukema, Bok, and Van Der Voort, 2016, Field Guide Amph. Rept. Brit. Eur.: 158–159, provided a brief account and range map. Beşir and Gül, 2019, Herpetol. Notes, 12: 45–51, provided a dot map for Rize Province, northeastern Türkiye. See Dufresnes, 2019, Amph. Eur., N. Afr., & Middle East: 65, for brief summary of identifying morphology and biology, a range map, as well as a photograph. Dufresnes, Berroneau, Dubey, Litvinchuk, and Perrin, 2020, Sci. Rep. (Nature, London), 10 (5502): 1–10, discussed the genetics of the contact zones with Hyla arborea. See taxonomic comments by Speybroeck, Beukema, Dufresnes, Fritz, Jablonski, Lymberakis, Martínez-Solano, Razzetti, Vamberger, Vences, Vörös, and Crochet, 2020, Amphibia-Reptilia, 41: 149. Kuzmin, 2013, Amph. Former Soviet Union, Ed. 2: 173–177, provided an account for the former USSR. Yıldırım and Kaya, 2014, Zool. Anz., 253: 361–371 , reported on comparative skeletonogenesis through metamorphosis. Dufresnes, Brelsford, Crnobrnja-Isailovic, Tzankov, Lymberakis, and Perrin, 2015, BMC Evol. Biol., 15 (155): 1–8, reported on a hybrid zone with Hyla arborea in northern Greece, southern Serbia and Kosovo, Bulgaria, and western Türkiye. Dufresnes, Litvinchuk, Leuenberger, Ghali, Zinenko, Stöck, and Perrin, 2016, Mol. Ecol., 25: 4285–4300, reported on mtDNA phylogeography. Key to the species, synonymy, distribution (including map), and access to literature provided by Safaei-Mahroo and Ghaffari, 2020, Compl. Guide Amph. Iran: 1–331. Yaşar, Çiçek, Mulder, and Tok, 2021, North-West. J. Zool., Romania, 17(e201512): 232–275, discussed and grid-mapped the range in Türkiye. Stepanyan, Arzumanyan, and Kalashian, 2021, Herpetol. Notes, 14: 325–329, discussed and mapped the range in Armenia. Gasimova, 2021, Biharean Biol., 15: 112–116, discussed the range in Azerbaijan, and provided a dot map. Mollov, Natchev, Koynova, Kambourov, Rashkov, Dimitrov, Todorov, Petrova, Vladov, and Uzunov, 2022, Ecol. Balkanica, Spec. Edit. 5: 43–74, discussed the presence of this species in protected areas of southeastern Bulgaria. Majtyka, Borczyk, Ogielska, and Stöck, 2022, Ecol. Evol., 12 (1: e8527): 1–10, reported on the hybrid zone in Poland with Hyla arborea. Safaei-Mahroo, Ghaffari, and Niamir, 2023, Zootaxa, 5279: 1–112, provided for Iran an identification key including this species, photographs, habitat, conservation threats and Red List recommendation, a review of the literature, as well as dot and modeled distribution maps. Nekrasova and Marushchak, 2023, Biodiversity Data J., 11(e99036): 1–15, modeled the distribution in Ukraine. Kuijt, Osk, den Boer, Dufresnes, France, Gilbert, de Visser, Struijk, and Wielstra, 2023, Amphibia-Reptilia, 44: 1–10, detected Hyla orientalis in the coastal dunes of the Netherlands and discussed the conservation implications. Birbele, Gulbe, Šķērstiņa, Puchades, Deksne, and Di Marzio, 2023, Herpetol. Notes, 16: 927–935, reported on the status of introduced populations in Latvia, originally thought to be a reintroduction of Hyla arborea (which was then thought to be conspecific) but subsequently confirmed genetically as Hyla orientalis. Litvinchuk, Grishanov, Grishanova, and Skorinov, 2024, Russ. J. Herpetol., 31: 24–30, reported on range shift over the last 80 years in the Kaliningrad region of western Russia, presumably due to climate warming. Hosseinian Yousefkani, Shafiei Bafti, Rezazadeh Mashizi, and Moeinadini, 2024, North-West. J. Zool., Romania, 20(e242501): 85–89, discussed the possible effects of climate change on range in Iran,  provided a current dot map and projected climate change map. Lukanov, 2024, PeerJ, 12(e17574): 1–13, compared the advertisement calls of Hyla arborea and Hyla orientalis in Bulgaria.

  

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