Supplementary Material - Ornithology in Spain: an update descriptive overview trough doctoral theses defended in last decades

´This supplementary material gathered the theses reviews published in the section Review of Doctoral Theses in Ornithology in Ardeola: International Journal of Ornithology between 1990-2019 which have been used to carried out the study. The theses reviews are grouped by university and, within each university, by academic year and alphabetical order of the author.