Subject category 1985-2020 % / 1939 Subject category 1985-2020 % / 1939
Ecology 1199 61.84 Zoology 141 7.27
Plant Sciences 424 21.87 Biology 101 5.21
Evolutionary Biology 204 10.52 Multidisciplinary Sciences 99 5.11
Forestry 168 8.66 Environmental Sciences 89 4.59
Biodiversity Conservation 159 8.2 Genetics Heredity 86 4.44