Chlorophyll Chlorosis can also be caused by pathogens including viruses, bacteria and fungal infections, or sap-sucking insects. Anthocyanins are other plant pigments. The absorbance pattern responsible for the red color of anthocyanins may be complementary to that of green chlorophyll in photosynthetically active tissues such as young "Quercus coccifera" leaves. It may protect the leaves from attacks by plant eaters that may be attracted by green color. The chlorophyll maps show milligrams of chlorophyll per cubic meter of seawater each month. Places where chlorophyll amounts were very low, indicating very low numbers of phytoplankton, are blue. Places where chlorophyll concentrations were
Ronald Spores colonial Manila Galleon trade between the Philippines and Acapulco. Spores obtained his undergraduate Bachelor of Science degree from the University of Oregon in 1953. His graduate studies were undertaken at the Universidad de las Américas in Cholula, Mexico, where he obtained an M.A. in 1960. Spores continued graduate studies at Harvard, where he completed a Master's thesis in 1963 and his doctorate in anthropology in 1964. Spores, Ronald and Andrew Balkansky (2013) The Mixtecs of Oaxaca: Ancient Times to the Present. Norman: University of Oklahoma Press. Spores, Ronald and Nelly Robles Garcia (eds.), Yucundaa. La Ciudad Mixteca y su Transformación