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Updated: Sep 27, 2025

Spotting Cheetahs: Identifying Individuals by Their Footprints
Published on: May 1, 2016
Quantifying and categorising national extinction-risk footprints
Amanda Irwin1, Arne Geschke2, Thomas M Brooks3,4,5
1ISA, School of Physics, A28, The University of Sydney, Sydney, NSW, 2006, Australia. amanda.irwin@sydney.edu.au.
Abstract:
Biodiversity, essential to delivering the ecosystem services that support humanity, is under threat. Projections show that loss of biodiversity, specifically increases in species extinction, is likely to continue without significant intervention. Human activity is the principal driver of this loss, generating direct threats such as habitat loss and indirect threats such as climate change. Often, these threats are induced by consumption of products and services in locations far-removed from the affected species, creating a geographical displacement between cause and effect. Here we quantify and categorise extinction-risk footprints for 188 countries. Seventy-six countries are net importers of extinction-risk footprint, 16 countries are net exporters of extinction-risk footprint, and in 96 countries domestic consumption is the largest contributor to the extinction-risk footprint. These profiles provide insight into the underlying sources of consumption which contribute to species extinction risk, a valuable input to the formulation of interventions aimed at transforming humanity's interactions with biodiversity.
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