The value of good field notes and memory really is highlighted in the publication of Grubb et al. (2020) who report the botanical findings of an expedition to high elevation (4050-4600 m) parts Ecuadorian Andes in AD 1960. The new study focuses on the relationship between vegetation and geology (lava flows), and surface processes (burning, grazing and trampling).
Grubb, P.J., Lloyd, J.R., Pennington, T.D. & Páez-Bimos, S. (2020) A historical baseline study of the páramo of Antisana in the Ecuadorian Andes including the impacts of burning, grazing and trampling. Plant Ecology & Diversity 1-32. https://doi.org/10.1080/17550874.2020.1819464