Increasing homogeneity in global food supplies and the implications for food security

Khoury, C.K. and Bjorkman, A.D. and Dempewolf, H. and et al, . (2014) Increasing homogeneity in global food supplies and the implications for food security. PNAS, 111 (11). pp. 4001-4006.

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This study provides evidence of change in the relative importance of different crop plants in national food supplies worldwide over the past 50 years. Within a global trend of increased overall quantities of food calories, protein, fat, and weight, and increased proportions of those quantities sourcing from energy-dense foods, national food supplies diversified in regard to contributing measured crop commodities. As a consequence, national food supplies globally have become increasingly similar in composition, based upon a suite of truly global crop plants. The growth in reliance worldwide on these crops heightens interdependence among countries in their food supplies, plant genetic resources, and nutritional priorities.

Item Type: Article
Additional Information: Funding was provided by the Global Crop Diversity Trust in Bonn, Germany (C.K.K.) and the CGIAR Research Program on Climate Change, Agriculture, and Food Security in Cali, Colombia (J.R.-V. and A.J.).
Uncontrolled Keywords: crop diversity, plant genetic resources, agricultural development, global analysis,
Author Affiliation: International Center for Tropical Agriculture, Apartado Aéreo 6713, Cali, Colombia;
Subjects: Postharvest Management
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 20 Mar 2014 06:09
Last Modified: 20 Mar 2014 06:09
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