Sumatran Orangutan Surveys in the Leuser Ecosystem (1970s–2000s)

1. Ketambe orangutan research station established

   Jan 1, 1971Labels: H D, Ketambe station, Gunung Leuser

   • Wageningen Thesis
   • Mongabay
   • GLNP Wiki

2. Rijksen completes multi-year Ketambe field study

   Jan 1, 1974Labels: H D, Ketambe study, orangutan ecology

   • Wageningen Thesis

3. Gunung Leuser National Park designated

   Jan 1, 1980Labels: Gunung Leuser

   • ConservationAtlas
   • GLNP Wiki

4. Gunung Leuser named a UNESCO biosphere reserve

   Jan 1, 1981Labels: Gunung Leuser, UNESCO MAB

   • UNESCO MAB
   • GLNP French Wiki

5. Suaq Balimbing monitoring station founded

   Jan 1, 1994Labels: Suaq Balimbing, Kluet swamps

   • SUAQ History
   • SUAQ Research

6. SOCP begins collaborative conservation and survey work

   Jan 1, 1999Labels: SOCP, PanEco

   • SOCP History
   • SOCP Wiki

7. Aceh conflict disrupts Suaq research operations

   Jan 1, 1999Labels: Aceh conflict, Suaq Balimbing

   • SUAQ History

8. Leuser included in UNESCO World Heritage inscription

   Jan 1, 2004Labels: Tropical Rainforest, Gunung Leuser

   • TRHS Wiki
   • GLNP Wiki

9. Leuser surveys connect habitat factors to orangutan density

   Apr 20, 2004Labels: Leuser study, orangutan density

   • PubMed Primates

10. Helsinki peace agreement signed for Aceh

    Aug 15, 2005Labels: Helsinki Agreement, Aceh peace

    • Finland MFA
    • Helsinki Wiki

11. Suaq monitoring station rebuilt and research resumes

    Jan 1, 2007Labels: Suaq Balimbing, monitoring station

    • SUAQ History

12. Island-wide surveys revise Sumatran orangutan estimates

    Mar 4, 2016Labels: island-wide survey, Sumatran orangutan

    • PubMed Sci Adv
    • APES Atlas