Tetraena hamiensis | (Schweinf.) Beier & Thulin

SIS Taxon ID
138678771
Phylum
Genus
Kingdom
Species
Scientific Name
Tetraena hamiensis
Authority
(Schweinf.) Beier & Thulin
Is SIS
On

Tetraena hamiensis | UAE National Red List of Vascular Plants

Location
Scope (Assessment)
National
Countries in Assessment
United Arab Emirates
Country ISO code(s)
ARE
Does the assessment cover a marine EEZ area(s)?
Off
Is there a map available in assessment?
Yes
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
No
Habitat
Habitat details as listed in assessment
Western (1983) found the species in the coastal vegetation zone within the UAE. Karim and Dakheel (2006) gave the habitat as dunes and saline areas, in addition to across the the central desert. It is also likely to occur in gravel environments (S. Ghazanfar pers. comm. 2019). It is extremely salt tolerant, grazed by camels and grows as a woody based shrublet, up to 0.7 m high.
Taxon
Taxa
Tetraena hamiensis | (Schweinf.) Beier & Thulin
Taxonomic Group
Plants
Taxonomic Group Level 2
Flowering Plants
Assessed taxon level
Species
Taxon distribution as listed in assessment
In the UAE, the species is found in coastal areas close to the western border, from Sila to Jebel Dhanna, to at least between Abu Dhabi and Dubai (Western 1983). Karim and Dakheel (2006) considered it common ""...all over the UAE: abundant along the Arabian Gulf coast, throughout western dunes and saline plains, and across the central desert"". However, according to participants of the National UAE Red List Workshop 15<sup>th</sup>-19<sup>th</sup> September 2019, Dubai), this plant may not be a coastal species after all. This highlights further confusion over the correct distribution of Tetraena hamiensis within the UAE. <u></u>In accordance with the outcomes of the UAE National Red List Workshop (15<sup>th</sup>-19<sup>th</sup> September 2019, Dubai), here, we consider Tetraena mandavillei to be a synonym of Tetraena hamiensis, and it is therefore included under this species assessment. The global range of this species spans from the north-east of Africa, through the Arabian Peninsula and on to Iran (Board of Trustees, RBG Kew 2019).
Assessed status
Asessment status in full
Least Concern
Assessment status abreviation
LC
About the assessment
Assessment year
2019
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Affliation of assessor(s)/contributors/reviewers listed on assessment
Government
IGO
Assessor affiliation specific
Government|IGO
Assessment rationale/justification
This species is apparently widespread in both coastal and inland saline areas of the UAE. Although it is likely that some subpopulations will have undergone a significant decline as a result of coastal development, the species is still thought to exceed the thresholds for threatened categories. Therefore, this species is assessed as Least Concern.
Criteria system
Criteria system specifics
IUCN v3.1 + Regional Guidelines v4.0
Criteria system used
IUCN
Criteria Citation
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1, Second edition. IUCN, Gland, Switzerland and Cambridge, UK. iv + 32pp pp. And IUCN. 2012. Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
Endemism
Endemic to region
Not_assigned
Endemism Notes
Is an endemic?: Not_assigned
Conservation
Threats listed in assessment
Western (1983) commented that the species is generally avoided by grazing animals because of its purgative effects, whilst Karim and Dakheel (2006) noted that it is grazed by camels. Due to these conflicting statements, the threats to this species remain largely unknown.
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Verified entry
Off