My main research interests are focused on forest dynamics and responses of forests to natural environmental conditions and anthropogenic impacts. For this purposed, I use tree rings, phenological observations, wood anatomical traits, radiocarbon, and isotope stable analysis together with computational tools.
PhD in Ecology | Universidad Nacional de Colombia | 2016-2021
M.Sc. in Forest and Environmental Conservancy | Universidad Nacional de Colombia | 2010-2012
B.Sc. in Forestry | Universidad Nacional de Colombia | 2003-2009
I have dedicated a great time involving, motivating undergraduate students, and sharing my passion for science. I have organized student seminars, research study groups, and teaching. In particular, I taught the dendrochronology course at Universidad Nacional de Colombia and Biophysics course at Universidad San Martín (Colombia). I also have taught in one dendrochronology workshop organized by Universidad Continental in Perú.
Giraldo, JA; del Valle, JI; González-Caro, S; Sierra, CA. (2021) Intra-annual isotope variations in tree rings reveal growth rhythms within the least-rainy season of an ever-wet tropical forest. Trees (Accepted).
del Valle JI. & Giraldo, JA. 2020. Radiocarbon and dendrochronology applied in a legal dispute: a case from Colombia. Radiocarbon 61: 1215-1223.
Giraldo, JA & del Valle JI. (2017) Sidereal and climate variations, observed in Colombia: record from tree rings (Conference paper, originally in Spanish). 7° Congreso Forestal Español. 7CFE01-064. Sociedad Española de Ciencias Forestales. ISBN: 978-84-941695-2-6.
López, J; del Valle JI; Giraldo, JA (2014). Flood-promoted vessel production in Prioria copaifera, a tree of the Darien Gap, Colombia. Tree Physiology, 34: 1079-1089.
Giraldo, JA, Giraldo VD & del Valle JI (2012) Solar activity and climate recorded from tree rings of Albizia niopoides (Originally in Spanish). Boletín del Centro de Investigación en Ecosistemas y Cambio Global, 9: 1-5.
Lara, CE & Giraldo, JA (2011). Ecology and silviculture of the Catival forest (Originally in Spanish). Boletín del Centro de Investigación en Ecosistemas y Cambio Global, 8: 11-19
Giraldo, JA (2011). Dendrochronology in the tropic: Current and potential applications (Originally in Spanish). Colombia Forestal, 14: 97-111.
Giraldo, JA & del Valle JI (2011) Growth study of Prioria copaifera (Caesalpiniaceae) using dendrochronological techniques (Originally in Spanish). Revista de Biología tropical / International Journal of Tropical Biology and Conservation 59: 1813-1831.
Giraldo, JA; del Valle, JI; Sierra, CA; Melo O. (2020) Dendrochronological Potential of Trees from America’s Rainiest Region. In Pompa-Garcia, M & Camarero, JJ (Eds.) Latin American Dendroecology – Combining tree-ring sciences and ecology in a mega diverse territory Springer, ISBN: 3-030-36930-7
Giraldo, JA. Methodological applications to study of urban trees (Originally in Spanish) (2015). In: Universidad Nacional de Colombia & Alcaldía de Envigado (eds.). Manual de Silvicultura Urbana (pp 231-240). Centro de Publicaciones Universidad Nacional de Colombia Sede Medellín. ISBN: 978-958-98108-8-0