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The importance of rodents to a specialist carnivore in an industrialized site

  • Fortune Ravhuanzwo ORCID logo EMAIL logo , Daan J.E. Loock und Lourens H. Swanepoel EMAIL logo
Veröffentlicht/Copyright: 15. Juli 2024
Mammalia
Aus der Zeitschrift Mammalia Band 88 Heft 6

Abstract

Specialist carnivores are often among the first species disappearing from transformed, human-dominated landscapes. However, some carnivore species can exploit abundant food sources in human-dominated landscapes. In this study, we investigated the diet of a specialist carnivore, the serval (Leptailurus serval), inhabiting artificial and natural landscapes surrounding a petrochemical plant in the Highveld of Mpumalanga, South Africa. From 2013 to 2018, for each year, we collected and analysed a total of 264 scat samples. We found that rodent species dominated the serval diet, while other prey items like birds, insects, and unidentified prey contributed little to the diet. In terms of biomass consumed, Otomys sp (56.94 %), Mastomys sp (19.12 %), and Rhabdomys sp (8.68 %) were the most important rodent prey. We further found that biomass consumed is only affected by species, not season or species–season interactions. Our results concur with previous studies that serval is primarily a rodent specialist and that specialisation holds even in human-altered landscapes.


Corresponding authors: Fortune Ravhuanzwo, Department of Biological Sciences, Faculty of Science, Engineering, and Agriculture, University of Venda, Private Bag x5050, Thohoyandou, 0950, South Africa; and Department of Zoology and Entomology, Faculty of Science and Agriculture, University of Fort Hare, 1 King Williamstown Rd, Alice, 5700, South Africa, E-mail: ; and Lourens H. Swanepoel, Department of Biological Sciences, Faculty of Science, Engineering, and Agriculture, University of Venda, Private Bag x5050, Thohoyandou, 0950, South Africa; and SARChI Chair on Biodiversity Value and Change, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, South Africa, E-mail:

Acknowledgments

We thank Mr N. L. Nembudani and Mr T. Maphothe for assisting on several field data collection trips.

  1. Research ethics: We can confirm that this is original research that has not been published elsewhere, nor it is currently under consideration for publication elsewhere. This study was conducted in accordance with the Animal Research Ethics, and it was approved by the Interfaculty Animal Ethics Committee of the University of Free State (Project number: UFS-AED2019/0084).

  2. Author contributions: All authors conceptualized the study. DL collected the scats, FR analysed the scats, and LHS did the statistical analysis. DL wrote the initial draft, and all authors contributed to the final draft. The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: All authors declare that they do not have a conflict of interest, and the information presented in this publication does not necessarily reflect any views or opinions of funding bodies and their employees.

  4. Research funding: We thank the National Research Foundation (NRF) grants (UID 107099 & 87311 ) awarded to Dr L. H. Swanepoel for funding, and Sasol Synfuel Operations for funding and logistics.

  5. Data availability: Data and code will be loaded to https://datadryad.org/ once published.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/mammalia-2023-0079).


Received: 2023-07-04
Accepted: 2024-05-29
Published Online: 2024-07-15
Published in Print: 2024-11-26

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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