1. Urban Greening and Biosystems Engineering Research Group, Departamento de Agronomía, Universidad de Sevilla, ETSIA, Ctra. Utrera km. 1, 41013 Seville, Spain
2. Urban Greening and Biosystems Engineering Research Group, Area of Agro-Forestry Engineering, Universidad de Sevilla, ETSIA, Ctra. Utrera km. 1, 41013 Seville, Spain
3. Department of Animal Sciences, University of California, Davis, CA 95616, USA