Contact
Email:
jhk11@duke.edu
John is an ecologist broadly interested in interactions between the environment and people. Recently, he has studied how land-use changes alter ecosystem services, including the role of land use and vegetation in regulating water yield, carbon sequestration, nutrient availability, erosion, and landslide risks. John’s research has taken him to the American southern Great Plains, Argentina, Japan, South Africa, Portugal, France, Costa Rica, Laos, and Germany. He received his PhD in ecology from Duke University. John’s work has been funded by the US National Science Foundation, US Environmental Protection Agency, Fulbright fellowship, Fundação Luso-Americana, Fondation de France, and the European Research Commission. John was also a Max Planck Open Access Ambassador to his institute—ask him about open science!
RCC Research Project: History of Limestone Use and Its Effects on Rivers: How We Transformed a Life-Giving Rock into a Pollutant
Lunchtime Colloquium Video - Rain, Land, Food, Water: Human Appropriation of the Calcium Cycle
Selected Publications:
- with Thierry Fourcaud, Christophe Jourdan, Jean‐Luc Maeght, Zhun Mao, James Metayer, Louise Meylan, Alain Pierret, Bruno Rapidel, Olivier Roupsard, Anneke de Rouw, Mario Villatoro Sanchez, Yan Wang, and Alexia Stokes. “Vegetation as a Driver of Temporal Variations in Slope Stability: The Impact of Hydrological Processes.” Geophysical Research Letters 44, no. 10 (April 2017): 4897–907.
- with Esteban G. Jobbágy and Robert B. Jackson. “Trade‐Offs in Water and Carbon Ecosystem Services with Land‐Use Changes in Grasslands.” Ecological Applications 26 no, 6 (September 2016): 1633–44.
- with Robert B. Jackson. “A Global Analysis of Groundwater Recharge and the Importance of Climate, Soils, and Vegetation.” Vadose Zone Journal 11, no. 1 (2012): vzj2011.0021RAl.
- with Cristina Armas, Timothy M. Bleby, and Robert B. Jackson. “The Effect of Hydraulic Lift on Organic Matter Decomposition, Soil Nitrogen Cycling, and Nitrogen Acquisition by a Grass Species.” Oecologia 168, no. 1 (January 2012): 11–22.
- with Dushmantha H. Jayawickreme, Celina S. Santoni, Esteban G. Jobbágy, and Robert B. Jackson. “Changes in Hydrology and Salinity Accompanying a Century of Agricultural Conversion in Argentina.” Ecological Applications 21, no. 7 (October 2011): 2367–79.
- with Neal Williams and Claire Kremen. “Effects of Cultivation and Proximity to Natural Habitat on Native Ground-Nesting Bees in California Sunflower Fields.” Journal of Kansas Entomological Society 79, no. 4 (2006): 309–20.