PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Biodiversity Biogeography Paleontology Zoology Omar Daniel Leon-Alvarado PeerJ Author Summary Past or current institution affiliations Universidade Federal de Santa Maria Universidad Industrial de Santander Websites Personal Website PeerJ Contributions Articles 2 December 6, 2023 Phylogenetic diversity and North Andean block conservation Omar Daniel Leon-Alvarado, Daniel R. Miranda-Esquivel https://doi.org/10.7717/peerj.16565 PubMed 38077412 November 25, 2021 Biogeographic evidence supports the Old Amazon hypothesis for the formation of the Amazon fluvial system Karen Méndez-Camacho, Omar Leon-Alvarado, Daniel R. Miranda-Esquivel https://doi.org/10.7717/peerj.12533 PubMed 34900439