Taxon name
Taphozous nudiventris
Cretzschmar, 1830
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Taphozous nudiventris
Cretzschmar, 1830
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Mammals
Species authority
Cretzschmar, 1830
Taxonomic notes and synonyms listed
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.
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)
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Qualifying criteria (if given)
D1
Criteria system used
IUCN
(see Assessment details)
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.
Assessment details
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.
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
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
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).
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
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.
Threats and conservation measures listed
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.
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.
Publication
Mallon, D., Hilton-Taylor, C., Allen, D., & Harding, K. (2019). UAE National Red List of Mammals: Marine and Terrestrial. A report to the Ministry of Climate Change and Environment, United Arab Emirates (p. 41). IUCN Global Species Programme. https://bit.ly/2RdZCQR
