Distribution of the CoRE Database

Distribution of studies included in the CoRE database, broken down by taxonomic group, hemisphere, and ecosystem type. Observations are concentrated in the Northern Hemisphere (90%) and are mostly from terrestrial organisms (89.5%). Plants make up approximately a third of all data, followed by insects (27.0%), birds (22.8%), and fish (6.5%). Mammals, reptiles, and amphibians are not well represented.