Dr. Darwin Alexander Pucha-Cofrep is a forest scientist and professor of forestry and natural resources at the National University of Loja (UNL) in Ecuador. He specializes in tree-ring science (dendrochronology and dendroecology) and wood anatomy to reconstruct past climate patterns and understand climate variability. As an expert in forest sciences and climate change, he combines climate science, plant physiology, and stable isotope analysis of carbon and oxygen to assess how trees and forests respond to changing environments. Dr. Pucha-Cofrep has authored more than 70 scientific publications. He currently directs the Master's program in Biodiversity and Climate Change at UNL and has supervised dozens of undergraduate and graduate theses, fostering new experts in the field. He earned his Ph.D. in Natural Resources from Friedrich-Alexander University in Germany, bringing international experience and multidisciplinary skills (including R and Python for data analysis). He spearheads projects like the Virtual Wood Library of Ecuador (Xiloteca Ec) and he is also the creator of Árbol Ec—a platform for digitizing and monitoring urban trees and measuring ecosystem services. Fluent in English, German, and Spanish, he is passionate about science that supports biodiversity conservation, climate resilience, and sustainable urban environments.