Adding dendrograms to ordination graphs with pvclust, vegan, BiodiversityR and ggplot2

The main objective of this document is to show a pathway of how dendrograms for results that were obtained via pvclust can be added to ordination graphs in ggplot2. This documents builds on previous document where I showed how to generate ordination graphs with vegan, BiodiversityR and ggplot2 and how to create dendrograms for pvclust results with ggraph.