900 Years of Tree Diagrams, ... Tree representations figure throughout Llull's work, ... It also made way for less obvious variations on the hierarchical tree model.

Variation among flowering seasons in the time of flowering, synchrony and length of flowering, and fluctuations in the abundance of pollinators may cause a variation in pollen dispersal distance.

Predicting an insect community structure based on genomic variation in a tree species. ScienceDaily. Retrieved May 27, 2025 from www.sciencedaily.com / releases / 2018 / 03 / 180313101658.htm.