The enviroment affects the evolutionary and biogeographical history of all species, affecting both richess and phylogenetic diversity. However, different forms of organisms may respond in different ways in their adaptation to changes.
In this study, researchers assessed patterns of species richness and phylogenetic diversity in angiosperm plants of East Africa, while considering differences between groups of woody and herbaceous species.
Using GBIF-mediated occurrence of more than 5,600 species, the authors analysed correlations between environmental variables and plant diversity metrics, finding similar tendencies among both angiosperm groups with positive responses to precipitation measures, topography and soil nutrients.
The results did, however, also show that enviromental variables explained larger variance in phylogenetic diversity for woody plants compared to herbaceous plants, suggesting a greater role of the environment in shaping community structures among trees and shrubs than herbs.