Leaping Ahead pp 165-172 | Cite as

Exudates and Animal Prey Characterize Slow Loris (Nycticebus pygmaeus, N. coucang and N. javanicus) Diet in Captivity and After Release into the Wild

  • Ulrike Streicher
  • Angelina Wilson
  • Rebecca L. Collins
  • K. Anne-Isola Nekaris
Part of the Developments in Primatology: Progress and Prospects book series (DIPR)


We present dietary data for individuals of three species of slow loris rescued from the pet trade: Nycticebus pygmaeus released and radio-tracked in Vietnam and N. coucang and N. javanicus held in captivity in Indonesia. Contrary to popular belief that slow lorises are frugivores, our data support recent studies that slow lorises are one of few primates specialized for regular extractive gouging of plant exudates, and capable of consuming insect prey containing secondary compounds. These behaviors are present in juveniles as young as 4 months. This specialized diet should be considered when maintaining captive individuals, and when planning reintroduction programs.


Obesity Carbohydrate Bark Indonesia Loris 


Nous présentons des données sur le régime alimentaire de trois espèces de loris lents, obtenues sur des individus vendus sur les marchés locaux: Nycticebus pygmaeus, relâchés et radio-pistés au Vietnam, et captifs N. coucang et N. javanicus en Indonésie. Contrairement à la croyance populaire qui voit ces animaux comme frugivores, nos donnés indiquent que les loris lents sont parmi les rares primates spécialisés dans l’extraction d’exudats, et capables de consummer des insectes contenant des produits toxiques. Ces comportements sont déjà observés chez les juvéniles de quatre mois. Ce régime alimentaire spécialisé devrait être pris en considération dans les élevages captifs, et les plans de réintroduction.



We thank J. Masters, J. Ratsimbazafy and C. Scheepers for organizing the Prosimians International Congress. The following people helped with the study: Vietnam, T. Nadler, Dao Van Khuong, Truong Quang Bich, Do Huu Lap, Nguyen Manh Hiep and Le Thien Duc; Indonesia, P. Agus, F. den Haas, A. Knight, E. Rahadian, K. Sanchez and K. Sudaryatmo. The Andreas Stihl Stiftung, International Animal Rescue Indonesia and Oxford Brookes University provided financial support. Comments from two reviewers improved the manuscript.


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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Ulrike Streicher
    • 1
  • Angelina Wilson
    • 2
  • Rebecca L. Collins
    • 2
  • K. Anne-Isola Nekaris
    • 2
  1. 1.Endangered Primate Rescue CenterNho Quan District, Ninh Binh ProvinceVietnam
  2. 2.Nocturnal Primate Research Group, School of Social Sciences and LawOxford Brookes UniversityOxfordUK

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