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Related Experiment Video

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Behavioral Assessment of Manual Dexterity in Non-Human Primates
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Non-Human Primates in Gabon: Occurrence Hotspots, Habitat Dynamics, Protected-Area Performance, and Conservation

Mohamed Hassani Mohamed-Djawad1,2,3, Barthelemy Ngoubangoye3,4, Papa Ibnou Ndiaye2

  • 1Unité de Recherche en Ecologie de la Santé (URES), Centre Interdisciplinaire de Recherche Médicale de Franceville (CIRMF), Franceville BP 769, Gabon.

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Summary
This summary is machine-generated.

Gabon

Keywords:
Gabonconservation planningland-cover changenon-human primatesprotected areasspatial hotspots

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Area of Science:

  • Primate Ecology
  • Conservation Biology
  • Remote Sensing

Background:

  • Gabon possesses rich non-human primate (NHP) biodiversity, but national conservation status data is limited.
  • Effective conservation strategies require integrated data on habitat, species distribution, and protected areas.

Purpose of the Study:

  • To conduct the first nationwide assessment of NHP conservation status in Gabon.
  • To integrate habitat dynamics, species distribution, and protected area effectiveness for conservation planning.

Main Methods:

  • Harmonized land-cover maps (1992-2022) and georeferenced NHP occurrences were analyzed.
  • Kernel density estimation and Getis-Ord Gi* identified species concentration areas.
  • Land-cover transitions and protected area effectiveness were quantified using per-pixel matrices and Monte Carlo randomization.

Main Results:

  • Ten fully protected NHP species confirmed, including gorillas and chimpanzees.
  • Primate occurrences concentrate in evergreen broadleaved forests, with high persistence but a net decline.
  • Protected areas captured significantly more NHP occurrences than expected, but conservation gaps exist for certain species.

Conclusions:

  • Gabon maintains extensive suitable NHP habitat, crucial for species like gorillas and chimpanzees.
  • Targeted conservation actions outside protected areas and maintaining landscape connectivity are vital.
  • Addressing agricultural expansion and habitat fragmentation is essential for securing NHP populations.