Red List of South African Species

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Least Concern (LC)

Rationale

Listed as Least Concern in view of its wide distribution (estimated extent of occurrence in the assessment region is 192,716 km2), presumed large population, and it being recorded from several protected areas. It is also able to utilise modified habitats and can occupy a broad range of environments. Savannah habitats in the assessment region are well protected. Although persecuted in certain regions, there is no evidence of decline to the species. The potential threat of wind farms should be monitored for its impacts on this species.

Regional population effects: Subpopulations from within the assessment region are continuous with those occurring in Mozambique and Zimbabwe. It has high wing-loading (Norberg & Rayner 1987), and thus dispersal capacity is assumed to be sufficient for rescue effects.

Distribution

The Angolan Free-tailed Bat has a broad distribution across much of sub-Saharan Africa, occurring across a range of habitat types (Skinner & Chimimba 2005). Its range extends from Senegal, The Gambia and Mali in the west, to Sudan, Ethiopia and Somalia in the east; southwards as far as eastern South Africa and Swaziland and is largely absent from the Congo basin (Monadjem et al. 2016). It has not been recorded from Namibia (ACR 2015). Within the assessment region, it has been recorded from KwaZulu-Natal, Swaziland, and through the Kruger National Park, from where its range extends to Zimbabwe, northern Botswana, Zambia, Malawi, Democratic Republic of the Congo, eastern Angola and Mozambique (Monadjem et al. 2010). Estimated extent of occurrence in the assessment region is 192,716 km2.

Population trend

Trend

The species is considered globally common (ACR 2015), and is abundant within its range across eastern South Africa (Monadjem et al. 2010). This species roosts communally in groups ranging from just a few individuals to thousands (Monadjem et al. 2010).

Threats

No major species-specific threats have been identified for this species. However, they are likely to be vulnerable to pressures identified for other bat species. With wind energy potential moving into parts of KwaZulu-Natal, this could pose a future threat to the Angolan Free-tailed Bat as it is an open-air forager (Baerwald et al. 2008; Cryan & Barclay 2009; Rydell et al. 2010; Rollins et al. 2012). Bats are attracted to wind farm sites which often tend to have higher insect densities. When bats fly near to turbine blades, they either collide directly with the blade or they experience barotrauma. Barotrauma is tissue damage caused by rapid excessive changes in air pressure near turbine blades (Baerwald et al. 2008; Rydell et al. 2010). Additionally, this species may face persecution when roosting within the roofs and crevices of buildings (Monadjem et al. 2016). As this species often roosts in caves, it may face the threat of human disturbance, as many local traditional ceremonies and tourism activities take place in caves.

Uses and trade

There is no evidence to suggest that this species is traded or harvested within the assessment region.

Conservation

This species is present in a number of protected areas, such as Kruger National Park, Ndumo Game Reserve, Tembe Elephant Park, Isimangaliso Wetland Park and Hluhluwe-iMfolozi Game Reserve. No direct conservation actions are currently needed for the species but it is likely to benefit from the direct protection of roost sites.

Recommendations for land managers and practitioners:
  • Protection of roosting sites, and the provision of bat boxes, in order to limit the persecution of this species when roosting in roofs and buildings.
Research priorities:
  • Monitoring the impact of wind farming on Angolan Free-tailed Bat populations within KwaZulu-Natal.
Encouraged citizen actions:
  • Citizens can assist the conservation of the species by reporting sightings on virtual museum platforms (for example, iSpot and MammalMAP), and therefore contribute to an understanding of the species distribution.

Lead agencies, Partners and Funders

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