Maizal (IMAGE) Penn State Caption A small farm or home garden that is culturally managed and species rich can have a significant impact when it comes to meeting the United Nations’ goal to end global hunger and malnutrition, according to researchers. The kind of multi-species maize field (maizal) pictured here functions as a keystone space in Peru, providing positive outcomes for both biodiversity and nutritious food. Credit Karl S. Zimmerer / Penn State. Creative Commons Usage Restrictions credit as specified License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.