Spatial genetic patterns in African wild dogs reveal signs of effective dispersal across southern Africa

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  • L. Tensen
  • B. Jansen van Vuuren
  • R. Groom
  • Bertola, Laura
  • H. de Iongh
  • G. Rasmussen
  • C. Du Plessis
  • H. Davies-Mostert
  • D. van der Merwe
  • E. Fabiano
  • F. Lages
  • F. Rocha
  • P. Monterroso
  • R. Godinho
Across much of Africa, decades of civil war, land reforms, and persecution by humans have decimated wildlife populations. African wild dogs (Lycaon pictus) have declined dramatically during the past decades, but have shown recent natural recolonisation of some areas. In Angola, they were rediscovered after almost five decades when no surveys were being conducted, and they have recolonised areas in southern Zimbabwe and northern South Africa. Wild dogs were also reintroduced to Mozambique, where only few individuals remained. Against this backdrop, understanding genetic structure and effective dispersal between fragmented populations is essential to ensure the best conservation approaches for the long-term survival of the species. Our study investigated population genetic diversity, differentiation and gene flow of wild dogs across southern Africa, to include areas where they have recently been rediscovered, reestablished or reintroduced. Our results point to four weakly differentiated genetic clusters, representing the lowveld of Zimbabwe/Limpopo, Kruger NP, Angola/KAZA-TFCA, and the managed metapopulation, counterbalanced by moderate levels of effective dispersal on a southern African scale. Our results suggest that if the human footprint and impact can be significantly minimized, natural dispersal of wild dogs could lead to the demographic recovery of the species in southern Africa.
OriginalsprogEngelsk
Artikelnummer992389
TidsskriftFrontiers in Ecology and Evolution
Vol/bind10
Antal sider12
ISSN2296-701X
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
LT worked under the UJ Global Excellence and Stature (UJ-GES) Fellowship (No. 2017337943) at the University of Johannesburg, and DFG funding (TE 1502/1-1) at the University of Koblenz-Landau. RG worked under a research contract from the Portuguese Foundation for Science and Technology (2021/00647/CEECIND).

Funding Information:
The authors are deeply grateful to all the people who assisted in this study. We specifically thank the African Wildlife Conservation Funds and Endangered Wildlife Trust for their collaboration and willingness to share their samples with us. We also thank the Natural History Museum of Zimbabwe for allowing us to sample their collection, and Marjolein Schoe for her assistance during this process.

Publisher Copyright:
Copyright © 2022 Tensen, Jansen van Vuuren, Groom, Bertola, de Iongh, Rasmussen, Du Plessis, Davies-Mostert, van der Merwe, Fabiano, Lages, Rocha, Monterroso and Godinho.

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