Erratum to: Protecting the global ocean for biodiversity, food and climate (Nature, (2021), 592, 7854, (397-402), 10.1038/s41586-021-03371-z)

OVANDO, DANIEL; LIU, OWEN; MOLINA, RENATO; PARMA, ANA; SZUWALSKI, CODY

NATURE

NATURE PUBLISHING GROUP

Año: 2023 vol. 621 p. 34 - 36

0028-0836

Marine protected areas (MPAs) can be a powerful conservation tool and can positively or negatively affect food security. Sala et al. (2020) estimate the effects of a global network of MPAs designed for biodiversity, carbon sequestration and food security. However, the model used to project these benefits depends on a series of unrealistic and insufficiently tested assumptions that are inconsistent with its source material; using a more realistic model markedly changes the map of priority MPAs and reduces potential food benefits by 62%. This extreme sensitivity in the outcomes of MPA networks to highly uncertain parameters and modelling assumptions means that the true global effects of MPAs on food security remain unknown.