Taphozous nudiventris | UAE National Red List of Mammals: Marine and Terrestrial

Taxa
Taphozous nudiventris | Cretzschmar, 1830
Publication
UAE National Red List of Mammals: Marine and Terrestrial
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
Vertebrates
Taxonomic Group Level 2
Mammals
Assessed taxon level
Species
Taxonomic Notes
Simmons (2005) assigns four subspecies to Taphozous nudiventris: T. n. kachhensis Dobson, 1872; T. n. magnus Wettstein 1913; T. n. nudaster Thomas, 1915; and T. n. zayidi Harrison, 1955. The enigmatic taxon T. n. serratus Heuglin, 1877 has been variously referred to either Taphozous nudiventris (e.g., Allen 1939, Koopman 1993) or Scotophilus leucogaster (e.g., Allen 1939, Koopman 1975), although it might not represent either of these species. See Felten (1962), Hayman and Hill (1971), Bates and Harrison (1991, 1997) and Bates et al. (1994) for further information on this taxon.
Taxon distribution as listed in assessment
There is a colony at Qarn Nazwa (Dubai; Gardner 2009) and further records from Al Ain, Sharjah, and Das Island in the Gulf (Judas et al. 2018). The subspecies recorded on Das Island is Taphozous nudiventris magnus, a winter migrant from Iraq, Bahrain or further north; the subspecies occurring in the rest of the UAE is T. n. zayidi (Judas et al. 2018). The global range extends across North Africa from Morocco to Egypt and south to northern Tanzania, the Middle East, southern Turkey, and east to the Indian subcontinent (Monadjem et al. 2017a).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
No
Habitat
Habitat details as listed in assessment
Roosts in crevices, cliffs and buildings (Harrison and Bates 1991). The colony on Qarn Nazwa roosts in rock crevices. Migrants from farther north in the Gulf have been recorded on Das Island.
Is there a map available in assessment?
Yes
Assessed status
Asessment status in full
Vulnerable
Assessment status abreviation
VU
Assessment status criteria
D1
Assessment rationale/justification
Within the UAE, this species is known from a colony at Qarn Nazwa (Dubai) and further records from Al Ain (Sharjah) and Das Island (Abu Dhabi) in the Gulf. The resident population of this bat is assessed as Vulnerable under criterion D1 because the population in the country was estimated to number 150 in 2009, but the numbers are likely to be higher than that now, but almost certainly less than the threshold of 1,000 mature individuals. The visiting population on Das Island (which is a different subspecies) could be assessed separately, however, that is not done here as it is considered to be too marginal (only a tiny portion of the global population of the subspecies occurs within the UAE).It is not known how much movement there is of this species across the region, hence it is not possible to determine if there is any rescue effect from populations in adjoining countries.
About the assessment
Assessment year
2018
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
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.
URL (link) of redlist assessment or publication
https://www.moccae.gov.ae/assets/download/b352eff1/UNRL%20of%20Mammals%20-%20Report%202019.pdf.aspx?view=true
Endemism
Endemic to region
Not_assigned
Endemism Notes
Is an endemic?: Not_assigned
Conservation
Threats listed in assessment
Unknown. The increasing extent and intensity of urban lighting may have a negative impact on nocturnal invertebrates, the main prey base.
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Further information
History
Although Hornby (1996) assessed the species as Data Deficient, it is considered that the species also qualified for listing as Vulnerable (VU) under criterion D1 in 1996.
Scientific Name Kingdom Phylum Class Order Family Genus
Taphozous nudiventris Animalia Chordata Mammalia Chiroptera Emballonuridae Taphozous