Story perspectives

Study Reveals Ecosystem Energy Crisis Linked to Megafauna Decline

11/1/2025

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Summary

Story summary

Africa's ecosystems operate on less than two-thirds of their natural energy due to megafauna decline such as elephants and lions.
The University of Oxford-led study uses ecosystem energetics to quantify energy flow in wildlife food webs, showing a decline of more than one-third since pre-colonial times.
The findings emphasize restoration that targets ecological functions, not just species reintroduction.
The implications are global, linking biodiversity loss to biosphere stability.

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Story summary

Africa's ecosystems operate on less than two-thirds of their natural energy due to megafauna decline such as elephants and lions.
The University of Oxford-led study uses ecosystem energetics to quantify energy flow in wildlife food webs, showing a decline of more than one-third since pre-colonial times.
The findings emphasize restoration that targets ecological functions, not just species reintroduction.
The implications are global, linking biodiversity loss to biosphere stability.