Avena barbata | UAE National Red List of Vascular Plants

Taxa
Avena barbata | Pott ex Link
Publication
UAE National Red List of Vascular Plants
Location
Countries in Assessment
United Arab Emirates
Country ISO code(s)
ARE
Does the assessment cover a marine EEZ area(s)?
Off
Scope (Assessment)
National
Taxon
Taxonomic Group
Plants
Taxonomic Group Level 2
Flowering Plants
Assessed taxon level
Species
Taxonomic Notes
Avena barbata Link is a secondary wild relative of oats, Avena sativa L. and A. byzantina K. Koch. (A. Katsiotis pers. comm. 2010). Five subspecies are native to Europe: A. barbata Link subsp. barbata, A. barbata subsp. castellana Romero Zarco, A. barbata subsp. hirtula (Lag.) Tab. Morais, A. barbata subsp. lusitanica (Tab. Morais) Romero Zarco and A. barbata subsp. wiestii (Steud.) Mansf.<span style=""background-color: yellow;""> (Valdés and Scholz; with contributions from Raab-Straube and Parolly 2009).<span style=""background-color: yellow;""><span style=""background-color: yellow;""><span style=""background-color: yellow;"">Romero Zarco (pers. comm. 2015) considers Avena saxatilis to be valid as a subspecies of Avena barbata (as Avena barbata subsp. castellana Romero Zarco), a situation that Euro+Med (2015, citing Valdés and Scholz 2009) agree with. Similarly, Loskutov and Rines (2011) consider A. saxatilis to be a form of Avena barbata. However, The Plant List (2015) considers Avena saxatilis to be a valid taxon).
Taxon distribution as listed in assessment
Avena barbata occurs in the Ru'us al-Jibal mountains in the north of the UAE (Jongbloed et al. 2003, Feulner 2011). Within this area, it has been recorded from one confirmed locality in the UAE at 900 m elevation, above bedrock on a ridge. A second record at 1,500 m elevation (Feulner 2011) may not be within the UAE. The origin and distribution of the species in the UAE requires confirmation; it may be native or be present here as a result of natural introduction, or may have been introduced alongside agriculture. Globally, this species occurs in northern, middle, east, south-east and south-west Europe, temperate Asia, Macaronesia, northern Africa and the Indian Subcontinent, and is naturalized in the Azores, Australia and the Americas (Duarte et al. 2011, Board of Trustees, RBG Kew 2018).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
No
Habitat
Habitat details as listed in assessment
Avena barbata is a tall and thin grass (Jongbloed et al. 2003) known to occur in one site in the Ru'us al-Jibal in the UAE. Globally, Avena barbata has been reported to be very successful in undisturbed sites, preferring shallow stony hillsides, open parkland, pastures and cultivated land. It does not favour shrubby or forested sites (Duarte et al. 2011). In the UAE, it was found in silt amongst rock, on bedrock on ridge, c. 0.2 km above cultivation (Feulner 2011, G.R. Feulner pers. comm. 2019). This species is a crop wild relative of the oat crop, Avena sativa (Kameswara Rao 2013).
Is there a map available in assessment?
Yes
Assessed status
Asessment status in full
Data Deficient
Assessment status abreviation
DD
Assessment rationale/justification
This species is known from one site within the Ru'us al-Jibal. The species occurs at high elevations and are relatively undisturbed sites, which this plant appears to prefer. In addition, it is generally described as rare and detailed distribution data is lacking for this species. It would benefit from further research into its tolerance of threats, including disturbance, in addition to confirming its overall distribution in the UAE to be able to accurately assess it. For now, it is assessed as Data Deficient and further research is needed for this species.
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
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
There is no information available.
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Avena barbata Plantae Tracheophyta Liliopsida Poales Poaceae Avena