NRLD - 330724 | Acanthodactylus boskianus ssp. asper

Assessment ID

330724

Taxon name

Acanthodactylus boskianus ssp. asper

(Audouin, 1829)

Infrarank

Acanthodactylus boskianus asper

Infratype

Subspecies (animalia)

Uploaded by

National Red List Database

Taxonomic information

Scientific name

Acanthodactylus boskianus ssp. asper

(Audouin, 1829)

Assessed taxon level

Subspecies

Infrarank

Acanthodactylus boskianus asper

Infratype

Subspecies (animalia)

Higher level taxonomic groupings

Vertebrates

Reptiles

Kingdom

Animalia

Phylum

chordata

Class

reptilia

Order

squamata

Family

lacertidae

Genus

Acanthodactylus

Species

boskianus

Species authority

(Audouin, 1829)

Location and scope

Specific locality or subnational name or regional name

United Arab Emirates (the)

Scope (of the Assessment)

National

Countries included within the scope of the assessment

United Arab Emirates (the)

Country ISO code(s)

ARE

Does the assessment cover a marine EEZ area(s)?

Not_assigned

Conservation Status

Assessed as

Near Threatened

Abbreviated status

Qualifying criteria (if given)

B1a+2a

Criteria system used

IUCN

(see Assessment details)

Assessment rationale/justification

This subspecies is listed as Near Threatened for the UAE. It has a very limited distribution within the United Arab Emirates on gravel plains bordering the Hajar Mountains on the west from 100 m to 300 m asl. The area of occupancy (AOO) is just 24 km2, and the extent of occurrence (EOO) is 195 km2. There are no current major threats to the species, however, one known locality is subject to intensive recreational use, and another area faces significant potential impacts from gravel extraction. The species has restricted AOO and EOO, and occurs in fewer than ten locations, however at present, no continuing decline is known. It qualifies as NT under Criterion B (B1 and B2). This taxon is not a non-breeding visitor, and it is presumed that any immigration from populations from Oman is not significant, and therefore there is no adjustment to the Category according to the IUCN regional and national Guidelines (IUCN 2012). Further monitoring and research are required, and the species should be reassessed if new data become available.

Assessment details

Year assessed

2018

Assessors/contributors/reviewers listed

UAE National Red List Workshop

Criteria system used

IUCN

Reference for methods given

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.

Further information

Endemism (according to assessment)

Endemic to region

Not assigned

Taxon distribution as listed in assessment

Within the United Arab Emirates, this subspecies is known from a small area on gravel plains bordering the western side of the Hajar Mountains (Roobas and Feulner 2013, Roobas et al. 2014) from 100 m to 300 m asl (Burriel-Carranza et al. in press). The AOO is just 24 km2, and the EOO is 195 km2.Globally, the subspecies is very widely distributed and known from Morocco, Algeria, Tunisia, Libya, Egypt, Jordan, Western Sahara, Mauritania, Mali, Nigeria, Sudan, Ethiopia, Eritrea, Chad, Yemen, Saudi Arabia, Oman and Kuwait (Tamar et al. 2014, 2016).

Is there a map available in assessment?

Yes

Habitat and systems

Ecological system type

Terrestrial

Not_assigned

Freshwater

Not_assigned

Marine

Not_assigned

Habitat

Habitat details as listed in assessment

The subspecies is found on hard desert surfaces such as sandy-gravel plains, dry wadis, interdunal plain and stony outwash plains (Gardner 2013).It is an active, diurnal ground-dwelling animal, with a diet that includes invertebrates and smaller lizards (Gardner 2013). In winter it is active throughout the day, but in summer may have a bimodal activity pattern, or even be active in mornings only when particularly hot. Clutch size is reported to be two to eight, and repeated clutches may be laid (Gardner 2013). The breeding season in the United Arab Emirates is observed to be from at least late summer through mid-winter (Roobas and Feulner 2013, Roobas et al. 2014).

Threats and conservation measures listed

Threats listed in assessment

There are at present no major threats known, however, there is quarrying (gravel extraction) near one known locality, and this has the potential to significantly impact the species in the future. A further locality is subject to intensive recreational use.

Publication

UAE National Red List of Herpetofauna: Amphibians & Terrestrial Reptiles, Sea Snakes & Marine Turtles

Els, J., Allen, D., Hilton-Taylor, C., Harding, K. (2019). UAE National Red List of Herpetofauna: Amphibians & Terrestrial Reptiles, Sea Snakes & Marine Turtles. MOCCAE, UAE