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Karina Yager

Assistant Professor



- Yale University

Research Topics:

Climate change impacts, Remote Sensing, Land-cover and Land-Use Change, Alpine Ecosystems, Andes, Mountain Societies, and Sustainability Studies


  • Bio/Research


    Dr. Yager’s research focuses on monitoring the social and ecological impacts of climate change in the Andes of South America. Her interdisciplinary research examines land use and land cover change (LCLUC), utilizing remote sensing, alpine vegetation studies, peatland studies, and ethnographic fieldwork with indigenous pastoralists.

    Yager’s current projects (NASA-ROSES) are focused on the impact of disappearing tropical glaciers on pastoral agriculture, deciphering climate and societal drivers of LCLUC, and the study of high-Andean wetland change in Northern Chile (CONICYT). She has been part of the GLORIA (Global Observation Research Initiative in Alpine Environments) network in South America since 2002.


    Educational Resources & ArcStory Maps

  • Publications


    2019 Cooper, DJ, Sueltenfuss, J,  Oyague, E, Yager, K, Slayback, D, Caballero, M., Argollo, J., and Mark, B. Drivers of Peatland Water Table Dynamics in the Central Andes, Bolivia and Peru.  Hydrological Processes

    2019 Klein, J, Tucker C, Nolin, A, Hopping K, Reid C., Steger A., Grêt‐Regamey S. Lavorel, B. Müller, E. T. Yeh, R. B. Boone, P. Bourgeron, V. Butsic, E. Castellanos, X. Chen, S. K. Dong G, Greenwood, M, Keiler, R. Marchant, R. Seidl, T. Spies, Thorn J., and K. Yager, Catalyzing transformations to sustainability in the world’s mountains.  Earth’s Future 7.

    2019 Yager, K., Valdivia, C., Slayback, D., Jimenez, E., Meneses, R.I., Palabral, A., Bracho, M., Romero, D., Hubbard, A., Pacheco, P., Calle, A., Alberto, H., Yana, O., Ulloa, D., Zeballos, G., Romero, A. Socio-ecological dimensions of Andean pastoral landscape change: Bridging traditional ecological knowledge and satellite image analysis in Sajama National Park, Bolivia.  Regional Environmental Change

    2019  ( in press)  Meneses, R., Domic, A., Beck S., and Yager. K  (eds.) Bofedales: Oasis in the Puna. The Nature Conservancy and The National Herbarium of Bolivia, La Paz.

    2019 Klein, J.A., Tucker, C.M., Steger, C.E., Nolin, A., Reid, R., Hopping, K.A., Yeh, E.T., Pradhan, M.S., Taber, A., Molden, D., Ghate, R., Choudhury, D., Alcántara-Ayala, I., Lavorel, S., Müller, B., Grêt-Regamey, A., Boone, R.B., Bourgeron, P., Castellanos, E., Chen, X., Dong, S., Keiler, M., Seidl, R., Thorn, J., & Yager, K. An integrated community and ecosystem-based approach to disaster risk reduction in mountain systems.  Environmental Science & Policy, 94, 143-152.

    2018 Valdivia, C and Yager, K. Adapting to Climate Change in the Andes: Changing landscapes and livelihood strategies in the Altiplano. Chapter 41. In The Routledge Handbook of Latin American Development. (Eds) Julie Cupples, Manuel Prieto and Marcela Palomino-Schalscha. Routledge. ISBN: 1138060739

    2017 Schmidt, S. K., Darcy, J. L., Sommers, P., Gunawan, E., Knelman, J. E., and Yager, K. Freeze–thaw revival of rotifers and algae in a desiccated, high-elevation (5500 meters) microbial mat, high Andes, Perú. Extremophiles, 1-8.doi: 10.1007/s00792-017-0926-2.

    2017 Seimon TA, Seimon A, Yager K, Reider K, Delgado A, Sowell P, Tupayachi A, Konecky B, McAloose D, Halloy S. Long-term monitoring of tropical alpine habitat change, Andean anurans, and chytrid fungus in the Cordillera Vilcanota, Peru: Results from a decade of study. Ecology and Evolution;00:1–14. DOI:

    2016 Cuesta, F., Muriel, P., Llambi, L.D., Halloy, S., Aguirre, N., Beck, S., Carilla, J., Menses, R.I., Cuello, S., Grau, A., Gamez, L., Irazabel, J., Jacome, J., Jaramillo, R., Ramirez, L., Samaniego, N., Suarez-Duque, D., Thompson, N., Tupuachi, A., Viñas, P., Yager, K., Becerra, M., Pauli, H., Gosling, W. Latitudinal and altitudinal patterns of plant community diversity on mountain summits across the tropical Andes. Ecography, DOI:

    2015 Cooper, D., Kaczynski, K, Slayback, D, and Yager, K. Growth and organic production in peatlands dominated by Distichia muscoides, Bolivia. Arctic, Antarctic and Alpine Research 47 (3): 505-510.

    2015 Yager, K. Satellite Imagery and Community Perceptions of Climate Change Impacts and Landscape Change. In J. Barnes & M. Dove (Eds.), Climate Cultures: Anthropological Perspectives on Climate Change. Ch. 6: 146-168. New Haven: Yale University Press.

    2015 Laheson, M., Mathews, A., Dove, M., Orlove, B., Puri, Rajindra, Barnes, J., McElwee, P., Moore, F., O’Reilly, J., and Yager, K. Strategies for changing the Intellectual Climate. Nature Climate Change 5 (5): 391- 392.

    2015  Yager, K, Hoffman, D and Halloy, S. Socio-economic and cultural aspects in GLORIA (Global Observation and Research Initiative in Alpine Environments) regions. GLORIA Field Manual. 5 th  Edition. H. Pauli, M. Gottfried., A. Lamprecht, S. Niessner, S. Rumpf, M. Winkler, K. Steinbauer, G. Grabherr (Eds.). Ch. 7.6 Vienna: GLORIA, Austrian Academy of Sciences & University of Natural Resources and Life Sciences. ISBN: 978-92-79-45694-7

    Yager, Karina Salt Routes from Uyuni and Atacama, Bolivia. The Great Inka Road: Engineering An Empire. Matos, R and Barreiro, J. (Eds.) Washington D.C.: Smithsonian. ISBN: 978-1-58834-495-3

    2014  Yager, K. Getting the Picture: Our Changing Climate. Boulder: Earth Vision Institute.

    2014  Mohr, K. I., Slayback, D., & Yager, K. Characteristics of Precipitation Features and Annual Rainfall during the TRMM Era in the Central Andes. Journal of Climate, 27(11), 3982-4001. doi:

    2013  Barnes, J., Dove, M., Lahsen, M., Mathews, A., McElwee, P., McIntosh, R., R., Moore, F., O’Reilly, J., Orlove, B., Puri, R., Weiss, H., & Yager, K. (2013). Contribution of anthropology to the study of climate change. Nature Climate Change, 3(6), 541-544. doi:

    2012    Yager, K., Meneses, R.I., Baldiviezo, N., Halloy, S., Tupuyachi, A., & Beck, S. Sitio GLORIA Cordillera de Vilcanota in Cuesta et. al. (eds.) Biodiversidad y Cambio Climatico en los Andes Tropicales- Conformación de una red de investigación para monitorear sus impactos y delinear acciones de adaptacion. Red GLORIA Andes: Lima-Quito.

    2011 Tucker, C. and Yager, K. (2011). Ten Years of MODIS in space: lessons learned and future perspectives. Italian Journal of Remote Sensing-Rivista Italiana Di Telerilevamento, 43(3), 7-18.

    2011 Tucker, C. J., Yager, K., Anyamba, A., and Linthicum, K. Climate Change, Extreme Weather Events, and Fungal Disease Emergence and Spread. In Fungal Diseases: An Emerging Challenge to Human, Animal, and Plant Health. Institute of Medicine: Washington, D.C., pp. 324-342.

    2011 Halloy, S., Ibanez, M., and Yager, K. Puntos y areas flexibles (PAF) para inventarios rapidos de estado de biodiversidad. Ecologia en Bolivia, 46(1), 46-56.

    2010 Beck, S., A. Domic, C. Garcia, R. I. Meneses, K. Yager, and S. Halloy. El Parque Nacional Sajama y sus Plantas. La Paz: Herbario Nacional de Bolivia-Fundacion PUMA.

    2010 Seimon, A., K. Yager, T. Seimon, S. Schmidt, A. Grau, S. Beck, C. Garcia, A. Tupayachi Herrera, P. Sowell, J. Touval, and S. Halloy. Changes in Biodiversity Patterns in the High Andes: Understanding the Consequences and Seeking Adaptation to Global Change. Mountain Forum Bulletin 9:25-27.

    2010 Halloy, S., K. Yager, S. Beck, and C. Garcia. El Cambio del Clima en el Contexto de Cambios en la Biosfera y la Noosfera: ¿Cuales son los riesgos y que podemos hacer? In S. G. Beck, N. Paniagua-Zambrana, R. P. López, and N. Nagashiro (Eds.), Biodiversidad y Ecología en Bolivia, Memorias del Simposio del XXX Aniversario del Instituto de Ecología., vol. 20. pp. 602-612. La Paz: Instituto de Ecología, Universidad Mayor de San Andrés (UMSA).

    2010 Halloy, S., Yager, K., García, C., & Beck, S. South America: Climate Monitoring and Adaptation Integrated Across Regions and Disciplines. In J. Settele (Ed.), Atlas of Biodiversity Risk- from Europe to the globe, from stories to maps. Ch. 3, pp. 86-91. Sofia & Moscow: Pensoft.

    2008 Yager, K., Ulloa, D., & Halloy, S. Conducting an interdisciplinary workshop on climate change: facilitating awareness and adaptation in Sajama National Park, Bolivia. In W. L. Filho (Ed.), Interdisciplinary Aspects of Climate Change. Pp. 327-342 Hamburg: Hamburg University of Applied Sciences.

    2008 Yager, K., Resnikowski, H., & Halloy, S. Grazing and Climatic Variability in Sajama National Park, Bolivia. Pirineos: The Journal of Mountain Ecology, 163, 97-109.

    2005 Halloy, S., Seimon, A., & Yager, K. Multidimensional (climate, biodiversity, socioeconomics, agriculture) context of changes in land use in the Vilcanota watershed, Peru. In E. Spehn, M. Liberman-Cruz & C. Körner (Eds.), Land use change and mountain biodiversity (pp. 323-337). Ft. Lauderdale: CRC Press

    2005 Halloy, S., Ortega, R., Yager, K., & Seimon, A. Traditional Andean cultivation systems and implications for sustainable land use. Acta Horticulturae, 670, 31-55.

    2002 Sherbinin, A., Balk, D., Yager, K., Jaiteh, M., Pozzi, F., Giri, C., et al. Social Science Applications of Remote Sensing: A CIESIN Thematic Guide. Palisades: CIESIN (Center for International Earth Science Information Networks).

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