Dr. Bryan Valencia

Postdoctoral associate

Email: bguido@my.fit.edu   

Bryan Valencia

Research project:

Shifting baselines: reconstructing vegetation assemblages in absence of human influences that can be taken as baselines for conservation

Treeline dynamics: Polylepis woodland dynamics, fire, and the history of speciation in the High Andes

Identification of microrefugia

Pollen identification: Identification of cultivated species using SEM (scanning electron microscope) images.

Research interests:

My research interests are understanding palaeoclimate and the mechanisms that controlled past climate variability in the South American Andes from centennial to millennial timescales. My goal is to use palaeoecological reconstructions to provide a useful framework that can be applied in conservation, restoration and management in face of contemporary climate change.


Valencia BG, Matthews-Bird F, Urrego DH, Williams JJ, Gosling WD, Bush M. Andean microrefugia: testing the Holocene to predict the Anthropocene (2016). New Phytologist Jul 4. doi: 10.1111/nph.14042 

Angela Rozas-Dávila, Bryan G. Valencia, Mark B. Bush. The functional extinction of Andean megafauna (2016). Ecology. DOI: 10.1002/ecy.1531

Dunia H. Urrego, Henry Hooghiemstra, Oscar Rama-Corredor, Belen Martrat, Joan O. Grimalt, Lonnie Thompson, Mark B. Bush, Zaire González-Carranza, Jennifer Hanselman, Bryan Valencia, and César Velásquez-Ruiz. Millennial-scale vegetation changes in the tropical Andes using ecological grouping and ordination methods (2016). Climate of the Past, 12, 697–711, doi:10.5194/cp-12-697-2016

Mark B. Bush, Andrea M Alfonso-Reynolds, Dunia H Urrego, Bryan G. Valencia, Alexander Correa-Metrio, Michael Zimmermann, and Miles R Silman. 2015. “Fire and Climate : Contrasting Pressures on Tropical Andean Timberline Species,” 1–13. Journal of Biogeography, doi:10.1111/jbi.12470

Nicole A Sublette Mosblech, Alex Chepstow-Lusty, Bryan G. Valencia and Mark B Bush. (2012) Anthropogenic control of late-Holocene landscapes in the Cuzco region, Peru. The Holocene, DOI: 10.1177/0959683612449760

Valencia, B.G., Urrego, D.H., Silman, M.R. & Bush, M.B. (2010) From ice age to modern: a record of landscape change in an Andean cloud forest. Journal of Biogeography, 37, 1637-1647.

Gosling, William D.; Hanselman, Jennifer A.; Knox, Christoper; Valencia, Bryan G. and Bush, Mark B. (2009). Long term drivers of change in Polylepis woodland distribution in the central Andes. Journal of Vegetation Science, 20(6), pp. 1041–1052.

Urrego, D.H., Bush, M., Silman, M.R., Correa-Metrio*, A., Ledru, M.-P., Mayle, F.E. Paduano, G. & Valencia*, B.G. 2009. Millennial-Scale Ecological Changes in Tropical South America since the last glacial maximum. in F. Vimeux, F. Sylvestre, and M. Khodri, editors. Past climate variability from the Last Glacial Maximum to the Holocene in South America and surrounding regions. Springer.

Hillyer, R., Valencia, B. G. , Bush, M.B., Silman, M.R. and M. Steinitz-Kannan. 2009. A 24,700-year paleolimnological history from the Peruvian Andes. Quaternary Research 71: 71-82.

Gosling, W.D.; Urrego, D.H.; Hanselman, J.A.; Valencia, B.G.; Bush, M.B. & Silman, M.R. 2006. How typical are the last 20,000 years of climatic and vegetation change in the tropical Andes?. Eos Trans. AGU 87(52), Fall Meeti. Suppl. San Francisco, CA, USA.


Bryan Valencia