Abstract
AbstractAfrican wild dogs (Lycaon pictus) have undergone severe population reductions and are listed as endangered on the International Union for Conservation of Nature Red List. Small, isolated populations have the potential to suffer from threats to their genetic diversity that may impact species viability and future survival. This study provides the first set of population-wide genomic data to address conservation concerns for this endangered species. Whole genome sequencing data were generated for 71 free-ranging African wild dogs from the Kruger National Park (KNP), South Africa, and used to estimate important population genomic parameters. Genomic diversity metrics revealed that variation levels were low; however, this African wild dog population showed low levels of inbreeding. Very few first- and second-order relationships were observed in this cohort, with most relationships falling into the third-order or distant category. Patterns of homozygosity could have resulted from historical inbreeding or a loss in genome variation due to a population bottleneck. Although the results suggest that this stronghold African wild dog population maintains low levels of inbreeding, likely due to their cooperative breeding system, it may lead to a continuous population decline when a reduced number of suitable mates are available. Consequently, the low genomic variation may influence species viability over time. This study highlights the importance of assessing population genomic parameters to set conservation priorities. Future studies should include the investigation of the potential of this endangered species to adapt to environmental changes considering the low genomic diversity in this population.
Funder
National Research Foundation of South Africa
South African Medical Research Council
Publisher
Springer Science and Business Media LLC
Reference98 articles.
1. Nicholson, S. K., Marneweck, D. G., Lindsey, P. A., Marnewick, K. & Davies-Mostert, H. T. A 20-year review of the status and distribution of African Wild Dogs (Lycaon pictus) in South Africa. Sawr.1 50, 8–19 (2020).
2. Overton, J. M. et al. Endangered African wild dogs (Lycaon pictus Temm.) in Angola: Filling a 50-year gap of knowledge with findings from two National Parks. Afr. J. Ecol. 58, 582–587 (2020).
3. Ray, J. C. Setting Conservation and Research Priorities for Larger African Carnivores. (Wildlife Conservation Society) (2005).
4. Woodroffe, R. & Sillero-Zubiri, C. Lycaon pictus. The IUCN Red List of Threatened Species. https://doi.org/10.2305/IUCN.UK.2012.RLTS.T12436A16711116.en (2012).
5. Creel, S. & Creel, N. Marusha. The African Wild Dog: Behavior, Ecology, and Conservation. (Princeton University Press). http://catdir.loc.gov/catdir/samples/prin031/2001051034.html (2002).
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