International Journal of Primatology

, Volume 27, Issue 6, pp 1495–1517 | Cite as

Plants Consumed by Eulemur fulvus in Comoros Islands (Mayotte) and Potential Effects on Intestinal Parasites

  • A. Nègre
  • L. TarnaudEmail author
  • J. F. Roblot
  • J. C. Gantier
  • J. Guillot

The study of self-medication among animals—zoopharmacognosy—is founded on observations that suggest that wild animals use plants with specific biological properties that may be beneficial to them. To verify whether self-vermifugation occurs among Eulemur fulvus in the wild, we studied their feeding behavior in both the dry and humid forests of Mayotte (Comoros Islands). We used the focal individual sampling method over an annual cycle. We conducted a complementary study during the 2-mo mating season, via the scan sampling method (at 10-min intervals). Among the 29 plant species brown lemurs consumed, we tested 16 in vitro as antiparasitic agents on 3 experimental parasite models (Rhabditis pseudoelongata, Trichomonas vaginalis, Entamoeba invadens). We obtained crude extracts to be tested after 2 successive chemical extractions (ethyl acetate and methanol), and 7 of them, belonging to 4 different plant species, showed an antiparasitic property: lemurs consumed Annona squamosa and Mimusops comorensis in large amounts, but ingested Ixora cremixora and Syzygium jambos sporadically. The 4 plants were active on the flagellate but only one of them (Ixora cremixora) also demonstrated antinematode properties. Humans use 2 of the plants as intestinal antiparasitic agents in traditional medicine and include numerous other plants in the diet. The relative lake of amoebas and flagellates in stools of Eulemur fulvus may be related to the consumption of plants with antiprotozoal properties. Nevertheless, in the absence of specific behavior that could be linked to a voluntary therapeutic action during our study, self-vermifugation in Eulemur fulvus remains elusive.

Key words

antiparasitic property Eulemur fulvus feeding behavior zoopharmacognosy 



The French Ministry of the Environment (ECOFOR-MNHN convention 2000.18) and the French Ministry of Agriculture funded our research. We thank the Conservatoire de l’Espace Littoral et des Rivages Lacustres for allowing us to conduct the study and Service Environnement et Forêt de la Direction de l’Agriculture et de la Forêt de Mayotte for providing the field facilities. We thank J. N. Labat, A. Hladik, A. Pibot, and F. Bartelat for their help in the identification of the botanical species. We thank R. Hocquemiller and F. Roblot from the Laboratoire de Chimie des Substances Naturelles of Paris XI University. We thank M. Hladik, B. Simmen, S. Krief and 2 anonymous reviewers for their constructive remarks on the article. We express special thanks to J. Maccario for his indispensable help with the statistical data.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • A. Nègre
    • 1
  • L. Tarnaud
    • 2
    • 5
    Email author
  • J. F. Roblot
    • 3
  • J. C. Gantier
    • 4
  • J. Guillot
    • 1
  1. 1.Service de Parasitologie-Mycologie de l’Ecole Nationale Vétérinaire de Maisons-AlfortMaisons-Alfort CedexFrance
  2. 2.UMR 5145, Laboratoire d’Ecoanthropologie et d’EthnobiologieParisFrance
  3. 3.Laboratoire de Chimie des Substances NaturellesUniversité Paris SudParisFrance
  4. 4.Laboratoire de Parasitologie et de MycologieUniversité Paris SudParisFrance
  5. 5.Laboratory of Human Evolution Studies, Graduate School of ScienceKyoto University, Sakyo-kuKyotoJapan

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