Researchers from CREAF, CSIC, and the Institute of Agricultural and Environmental Sciences of Estonia have found that flowers are becoming more fragrant as the global mean temperature rises. In addition, intense heat provokes changes in the composition of floral aromas, transforming the odors of natural areas. This could lead to pollinizers mistaking the identity of flowers, especially specialist species whose flower visits are guided by their own innate olfactory preferences.
A study carried out by scientists at the CREAF and the CSIC has shown that the reflectance PRI index allows for the quantification of gasses emitted by plants in order to communicate or in situations of stress. This index is calculated by measuring the light that vegetation reflects with the help of photosensors on planes or with satellite images.