FSC-certified forest management benefits large mammals compared to non-FSC

Area of Science:

• Ecology
• Conservation Biology
• Forestry

Background:

• Tropical forests are vital ecosystems, but timber exploitation, particularly logging, significantly impacts biodiversity.
• Logging roads facilitate hunting, leading to wildlife overexploitation and biodiversity loss in these sensitive environments.
• Forest management certification schemes, like the Forest Stewardship Council (FSC), aim to mitigate these impacts, but their effectiveness remains largely unquantified due to research limitations.

Purpose of the Study:

• To investigate the effectiveness of Forest Stewardship Council (FSC) certification in mitigating the impacts of logging on mammal communities in tropical forests.
• To provide empirical evidence on the differences in mammal biodiversity between FSC-certified and non-FSC logging concessions.
• To inform forest management practices and conservation strategies for timber extraction areas.

Main Methods:

• Utilized 1.3 million camera-trap photos to survey mammal species across 14 logging concessions in western equatorial Africa.
• Analyzed data for 55 mammal species, comparing encounter rates and community composition between FSC-certified and non-FSC concessions.
• Focused analysis on species weight, conservation priority, and overall community structure.

Main Results:

• Higher mammal encounter rates were observed in FSC-certified logging concessions compared to non-FSC concessions.
• The positive effect of FSC certification was most significant for large-bodied species (>10 kg) and those of high conservation concern, including forest elephants and western lowland gorillas.
• Non-FSC concessions showed a higher proportion of small-bodied species, particularly rodents, indicating a less diverse mammal community.

Conclusions:

• FSC-certified forest management demonstrates a less damaging impact on mammal communities compared to non-FSC management in logged tropical forests.
• Maintaining unlogged forests with effective law enforcement remains the highest priority for species protection.
• Implementing FSC certification or similarly stringent standards for timber extraction is crucial to prevent significant biodiversity loss and maintain healthier mammal communities.