Hyla savignyi 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Hylidae

Scientific Name: Hyla savignyi (Audouin, 1829)
Regional Assessments:
Hyla arborea (Audouin, 1829) ssp. savignyi
Hyla arborea var. savignyi Boulenger, 1882
Hyla arborea Boulenger, 1882 var. savignyi
Hyla arborea savignyi (Audouin, 1829)
Taxonomic Notes: Hyla savignyi is a member of the Hyla arborea complex. It was previously considered to be a subspecies of H. arborea. A new species, Hyla heinzsteinitzi, from Israel, that is related to Hyla savignyi, has recently been described (Grach et al 2007)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2009
Date Assessed: 2008-12-14
Assessor(s): Sergius Kuzmin, Ahmad Mohammed Mousa Disi, Gad Degani, David Tarkhnishvili, Boris Tuniyev, Max Sparreboom, Ismail H. Ugurtas, Nasrullah Rastegar-Pouyani, Steven Anderson, Riyad Sadek, Souad Hraoui-Bloquet, Avital Gasith, Eldad Elron, Sarig Gafny, U?ur Kaya
Reviewer(s): Cox, N. and Temple, H.J. (Global Amphibian Assessment)
Listed as Least Concern in view of its wide distribution, tolerance of a broad range of habitats, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is widespread in western Asia and southern Transcaucasia, including Cyprus, southeastern Turkey, the Levant, the Arabian Peninsula (the Asir region of southern Saudi Arabia and northern Yemen), Iran (Zagros region, and an isolated population in Golestan National Park [Max Kasparek pers. comm. November 2008]), northern Iraq, Talysh (Azerbaijan), Armenia, and northwestwards to Tbilisi, (Georgia). It has also been reported from the northeastern region of Sinai, Egypt (first recorded in the early 1990's). It is present from 400m below sea level (Jordan) to above 1,800m.
Countries occurrence:
Armenia; Azerbaijan; Cyprus; Egypt; Georgia; Iran, Islamic Republic of; Iraq; Israel; Jordan; Lebanon; Saudi Arabia; Syrian Arab Republic; Turkey; Yemen
Additional data:
Lower elevation limit (metres):-400
Upper elevation limit (metres):1800
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is relatively common in suitable habitat. It is the most abundant amphibian species in Israel; it is very common in Lebanon and is considered to be rare in Jordan.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The species lives in much drier landscapes than Hyla arborea, including steppes, deserts and semi-deserts. It is also present in gardens, bush lands, montane forest edges, open oak and juniper forests, and areas with permanent or semi permanent water sources (including oasis) with good surrounding vegetation (e.g.. Phragmites, Oleander). The species may be found at considerable distances from waterbodies in xeric environments, such as rocky slopes and on the xerophytic bush Alhagi pseudoalhagi. Spawning and larval development takes place in small stagnant waterbodies, drainage canals and slow flowing brooks with dense herbaceous and shrub vegetation. The species is able to adapt to light habitat modification, and may be found in rural, or semi-urban, areas where suitable wetland habitat exists.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): Severe drought, drying from water extraction, overgrazing and habitat loss might lead to localized declines. In Syrian Arab Republic and the Arabian Peninsula it might be threatened by water pollution and anthropogenic changes of habitat. In Israel, available breeding sites have declined by up to 30% in recent years.

Conservation Actions [top]

Conservation Actions: It is protected by national legislation in Israel. Present in protected areas in Georgia (Hoseov and Skibahoa Reserves), Armenia, Azerbaijan, Jordan (Dana and Al Mujib Wildlife Reserves) and Lebanon (Arz El-Shouf, Horj Ehden, Ammiq marshes and Sandy Beach of Sour). It is present in several protected areas in Turkey. The contact zone between H. savignyi and H. arborea in Georgia requires special attention (S. Kuzmin pers. comm.)

Classifications [top]

3. Shrubland -> 3.4. Shrubland - Temperate
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
3. Shrubland -> 3.8. Shrubland - Mediterranean-type Shrubby Vegetation
4. Grassland -> 4.4. Grassland - Temperate
4. Grassland -> 4.5. Grassland - Subtropical/Tropical Dry
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
5. Wetlands (inland) -> 5.5. Wetlands (inland) - Permanent Freshwater Lakes (over 8ha)
5. Wetlands (inland) -> 5.6. Wetlands (inland) - Seasonal/Intermittent Freshwater Lakes (over 8ha)
5. Wetlands (inland) -> 5.7. Wetlands (inland) - Permanent Freshwater Marshes/Pools (under 8ha)
5. Wetlands (inland) -> 5.8. Wetlands (inland) - Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha)
5. Wetlands (inland) -> 5.9. Wetlands (inland) - Freshwater Springs and Oases
8. Desert -> 8.2. Desert - Temperate
14. Artificial/Terrestrial -> 14.1. Artificial/Terrestrial - Arable Land
14. Artificial/Terrestrial -> 14.4. Artificial/Terrestrial - Rural Gardens
15. Artificial/Aquatic & Marine -> 15.9. Artificial/Aquatic - Canals and Drainage Channels, Ditches
0. Root -> 16. Introduced vegetation
2. Land/water management -> 2.1. Site/area management
4. Education & awareness -> 4.3. Awareness & communications

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
11. Climate change & severe weather -> 11.2. Droughts
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.3. Agro-industry farming
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

9. Pollution -> 9.3. Agricultural & forestry effluents -> 9.3.4. Type Unknown/Unrecorded
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
3. Monitoring -> 3.1. Population trends

Bibliography [top]

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Deagni, G. and Mendelssohn, H. 1990. Plants and animals of the Land of Israel, second edition, Volume 5. The Publication House Society for Protection of Nature, Israel.

Degani, G. 1982. Amphibian tadpole interaction in a winter pond. Hydrobiologia 96: 3-7.

Degani, G. 1986. Growth and behavior of six species of amphibian larvae in winter ponds in Israel. Hydrobiologia 140: 5-10.

Degani, G. and Kaplan, D. 1999. Distribution of amphibian larvae in Israeli habitats with changeable water availability. Hydrobiologia 405: 49-56.

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Disi, A.M. 2002. Jordan Country Study on Biological Diversity: The Herpetofauna of Jordan. Amman.

Disi, A.M., Modrý, D., Nečas, P. and Rifai, L. 2001. Amphibians and Reptiles of the Hashemite Kingdom of Jordan. Edition Chimaira, Frankfurt.

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Gasith, A. 2002. Amphibian Decline in Israel - A New Research Project. FrogLog.

Grach, C., Plesser, Y. and Werner, Y.L. 2007. A new, sibling, tree frog from Jerusalem (Amphibia: Anura: Hylidae). Journal of Natural History 41: 709–728.

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Citation: Sergius Kuzmin, Ahmad Mohammed Mousa Disi, Gad Degani, David Tarkhnishvili, Boris Tuniyev, Max Sparreboom, Ismail H. Ugurtas, Nasrullah Rastegar-Pouyani, Steven Anderson, Riyad Sadek, Souad Hraoui-Bloquet, Avital Gasith, Eldad Elron, Sarig Gafny, U?ur Kaya. 2009. Hyla savignyi. The IUCN Red List of Threatened Species 2009: e.T55647A11347491. . Downloaded on 26 May 2018.
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