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Hyla arborea

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AMPHIBIA ANURA HYLIDAE

Scientific Name: Hyla arborea
Species Authority: (Linnaeus, 1758)
Common Name(s):
English European Tree Frog
French Rainette Verte
Spanish Ranita De San Antón
Taxonomic Notes: Hyla arborea is the central member of the Hyla arborea complex, which includes several species of European and Asiatic tree frogs.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2009
Date Assessed: 2008-12-14
Assessor(s): Ugur Kaya, Aram Agasyan, Aziz Avisi, Boris Tuniyev, Jelka Crnobrnja Isailovic, Petros Lymberakis, Claes Andrén, Dan Cogalniceanu, John Wilkinson, Natalia Ananjeva, Nazan Üzüm, Nikolai Orlov, Richard Podloucky, Sako Tuniyev, U?ur Kaya
Reviewer(s): Cox, N. and Temple, H.J. (Global Amphibian Assessment)
Justification:
Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
History:
2006 Least Concern (IUCN 2006)
2006 Least Concern
2004 Near Threatened

Geographic Range [top]

Range Description: This is a widespread Palearctic species occurring from Iberia (where there are scattered populations within its range) and France, eastwards to western Russia and the Caucasian region, and southwards to the Balkans and Turkey (except extreme eastern, southeastern parts). It is mostly absent from Scandinavia (except southern and eastern Denmark and extreme southern Sweden), and has been introduced to the UK (New Forest) but is now thought to be extinct there and is not mapped. This is a lowland species that has been recorded at a maximum altitude (in Europe) of 2,300m asl. (Bulgaria), although this requires reconfirmation.
Countries:
Native:
Albania; Armenia (Armenia); Austria; Azerbaijan; Belarus; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Czech Republic; Denmark; France; Georgia; Germany; Greece; Hungary; Italy; Liechtenstein; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Moldova; Montenegro; Netherlands; Poland; Portugal; Romania; Russian Federation; Serbia (Serbia); Slovakia; Slovenia; Spain; Sweden; Switzerland; Turkey; Ukraine
Reintroduced:
Latvia
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: While the species is common in suitable habitats in parts of its range, it is reported to be fragmented and in significant decline over much of its Western European distribution (e.g., Gasc et al., 1997; Baker, 1997; Fog, 1995).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This species is generally associated with open, well-illuminated broad-leaved and mixed forests, bush and shrublands, meadows, gardens, vineyards, orchards, parks, lake shores and low riparian vegetation. Dark and dense forests are avoided. Populations can tolerate periods of dryness and can be encountered in dry habitats (Dan Cogălniceanu pers. comm., October 2008). Spawning and larval development takes place in stagnant waters such as lakes, ponds, swamps and reservoirs, and sometimes in ditches and puddles. The species has been reported from anthropogenic landscapes, including large cities (e.g., Kiev). It sometimes occurs in sympatry with Hyla meridionalis (and produces infertile hybrids).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The species is quite sensitive to changes in habitat, including loss and fragmentation of forests, bush groves and meadows (with the isolation of populations), and the drainage and pollution of wetlands (industrial and agricultural) and predatory fish species. These impacts on metapopulations have led to declines in parts of Europe, and possible local declines in Turkey. The species is collected for the pet trade, and in some parts of its range (western Europe) this might be leading to local population declines.

Conservation Actions [top]

Conservation Actions: It is listed on Appendix II of the Berne Convention and is listed on Annex IV of the EU Natural Habitats Directive. The species is protected by national legislation in many countries, it is recorded on many national and sub-national Red Data books and lists and it is present in many protected areas. It has been reintroduced to Latvia (Gaua National Park, Riga District) in 1987-1992 from Belarus and from captive bred individuals raised at Riga Zoo. Further research into the distribution limits of this species in southern Turkey is needed. In parts of this species range, mitigation measures to reduce road kill have been established.

In Sweden, a "restocking program" has successfully has increased the population from 2,000 (1980) to 50,000 (2008) in about 900 breeding ponds and the species has been repopulated to its historic range. The species benefits from pond creation programs in several areas of Central Europe. This is often a flagship species for numerous restoration programs.

Bibliography [top]

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Citation: Ugur Kaya, Aram Agasyan, Aziz Avisi, Boris Tuniyev, Jelka Crnobrnja Isailovic, Petros Lymberakis, Claes Andrén, Dan Cogalniceanu, John Wilkinson, Natalia Ananjeva, Nazan Üzüm, Nikolai Orlov, Richard Podloucky, Sako Tuniyev, U?ur Kaya 2009. Hyla arborea. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 23 September 2014.
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