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Parasitology Research

, Volume 118, Issue 10, pp 2863–2875 | Cite as

Beta diversity of gastrointestinal helminths in two closely related South African rodents: species and site contributions

  • Andrea Spickett
  • Luther van der Mescht
  • Kerstin Junker
  • Boris R. Krasnov
  • Voitto Haukisalmi
  • Sonja MattheeEmail author
Helminthology - Original Paper

Abstract

A fundamental aim of parasite ecology is to understand the mechanisms behind spatial variation in diversity and structure of parasite assemblages. To understand the contribution of individual parasite species and their assemblages to spatial variation in parasite communities, we examined species contributions to beta diversity (SCBD) and local contributions to beta diversity (LCBD) of parasitic gastrointestinal helminths (nematodes and cestodes) in two closely related rodents, Rhabdomys dilectus and Rhabdomys pumilio, from 20 localities across South Africa. Although the two Rhabdomys spp. are morphologically similar, they differ substantially in body size, habitat preference, and sociality. We asked whether the variation in life history traits and infection parameters are associated with SCBD of helminths and whether variation in environmental factors, host population density, and species richness of host communities are associated with LCBD of component assemblages of helminths. We also considered spatial factors to test whether LCBD of helminth assemblages demonstrate geographic structure. We found that the contribution of helminth species parasitic in both hosts to beta diversity significantly increased with characteristic prevalence of these species, whereas mean abundance, type of life cycle, and location in the host’s gut had no effect on SCBD. The LCBD of helminth assemblages showed a significant positive correlation with environmental factors in both host species. Our results suggest that predictors of variation in SCBD and LCBD may substantially differ between parasites with different infection parameters and/or parasite communities at different hierarchical scales.

Keywords

Beta diversity Rhabdomys Gastrointestinal helminths Environment LCBD SCBD 

Notes

Acknowledgments

We thank private landowners and nature reserve authorities for permitting us to conduct fieldwork on their properties, under the following provincial permit numbers: Eastern Cape, CRO37/11CR; KwaZulu-Natal, OP4990/2010; Western Cape, 0035-AAA007-00423; Northern Cape, FAUNA 1076/2011, Free State, 01/8091; Gauteng, CPF 6-0153, and Mpumalanga, MPB. 5331. We thank G. Froeschke for the identification of helminths that were recovered from most of the Fynbos localities as well as N. Avenant, M.D. Chipana, J. Coetsee, L. Cohen, N. Du Toit, A. Engelbrecht, G. Froeschke, R.F. Masubelle, C.A. Matthee, and L. Richards for help with field and technical work. This is publication no. 1025 of the Mitrani Department of Desert Ecology.

Data accessibility

The datasets generated and/or analyzed during the current study are available from the corresponding author upon reasonable request.

Funding information

Financial support for the project was provided by the National Research Foundation (NRF), Agricultural Research Council – Onderstepoort Veterinary Institute and Stellenbosch University. LVDM received financial support through a postdoctoral fellowship from the Claude Leon Foundation. The Grant holder acknowledges that opinions, findings, and conclusions or recommendations expressed in any publication generated by the NRF-supported research are those of the authors, and that the NRF accepts no liability whatsoever in this regard.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted (Stellenbosch University - Research Ethics Committee: Animal Care and Use, permit numbers 2006B01007 and SU-ACUM11-00004 and Onderstepoort Veterinary Institute - Animal Ethics Committee, permit number AEC32.11).

Supplementary material

436_2019_6411_MOESM1_ESM.docx (17 kb)
Supplementary Table 1 (DOCX 17 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Agricultural Research Council-Onderstepoort Veterinary InstituteOnderstepoortSouth Africa
  2. 2.Department of Conservation ecology and EntomologyStellenbosch UniversityMatielandSouth Africa
  3. 3.Evolutionary Genomics Group, Department of Botany and ZoologyStellenbosch UniversityStellenboschSouth Africa
  4. 4.Mitrani Department of Desert Ecology, Swiss Institute for Dryland Environmental and Energy Research, Jacob Blaustein Institutes for Desert ResearchBen-Gurion University of the NegevBeershebaIsrael
  5. 5.PirkkalaFinland

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