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ORIGINAL RESEARCH article

Front. Ecol. Evol.
Sec. Population, Community, and Ecosystem Dynamics
Volume 12 - 2024 | doi: 10.3389/fevo.2024.1333162

Relative abundance of a mesocarnivore in a human-dominated, semi-arid rangeland in Namibia

Provisionally accepted
  • 1 Namibia University of Science and Technology, Windhoek, Namibia
  • 2 Cheetah Conservation Fund, Otjiwarongo, Namibia
  • 3 University of Antwerp, Antwerp, Antwerp, Belgium
  • 4 Zambeze Delta Conservation, Dallas, United States
  • 5 Stellenbosch University, Stellenbosch, Western Cape, South Africa

The final, formatted version of the article will be published soon.

    Mesocarnivores fill important roles in ecological communities globally, but their distribution and abundance are often understudied. Many species have historically been regarded as vermin and subject to lethal control due to their role in livestock predation. Identifying the factors influencing mesocarnivore populations can help disentangle their relationship within ecological communities and inform conflict mitigation and conservation priorities. In 2018 and 2019, we used camera traps to study the community of medium and large mammals in four communal conservancies of northeastern Namibia covering the wet and dry seasons using 99 and 97 camera trap stations, respectively. We modelled black-backed jackal (Lupulella mesomelas) abundance using the robust Royle-Nichols model. Black-backed jackal were widespread, with a mean per site abundance of 2.01 (SD=0.66) in the wet season and 2.41 (SD=0.49) in the dry season. Black-backed jackal showed seasonally contrasting covariate associations, with lower abundance in areas with medium and large-sized wild prey during the wet season, and higher abundance in areas with more villages and close to African wild dog (Lycaon pictus) dens in the dry season. We identified localized hotspots of black-backed jackal abundance during the dry season, which may indicate that when resources are scarce, black-backed jackals rely on anthropogenic food sources with an elevated risk for conflict, and on carcass remains from African wild dog kills. This study highlights potential drivers of mesocarnivore abundance that would be obscured in a conventional occurrence modelling framework, and illustrates how local abundance may be influenced by seasonal variability, wild and anthropogenic food sources, and a likely facilitative relationship with a large carnivore. Black-backed jackal have adapted to proximity of rural human populations and are common in our study system despite persecution. Further investigations in areas with more complex carnivore guilds and higher density of dominant predators are needed to understand black-backed jackal-African wild dog interactions and impacts on population dynamics.

    Keywords: African wild dog, black-backed jackal, carnivore abundance, Lupulella mesomelas, Lycaon pictus, Namibia, Okakarara District Communal Area

    Received: 04 Nov 2023; Accepted: 27 Aug 2024.

    Copyright: © 2024 Reasoner, Marker, Verschueren, Briers-Louw, Mbidzo and Cristescu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Bogdan Cristescu, Cheetah Conservation Fund, Otjiwarongo, Namibia

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