Selected Publications

This paper explores multiple components of the food‐energy‐water nexus and highlights possible approaches that could be used to meet food and energy security with the limited renewable water resources of the planet.
Reviews of Geophysics, 2018

Novel statistical analyses of global fisheries data indicate that production shocks are a common feature of marine fisheries and aquaculture. A complementary case study approach identifies key social and political dynamics related to these shocks.
Global Environmental Change, 2017

Ecologists have identified unique statistical anomalies that appear in time series prior to environmental tipping points. The methods have been adapted by researchers in many other fields including economics, computer science, and medicine.
Science, 2016

Non-linear relationships create thresholds that cause emergent patterns when evaluating lakes at broad geographic scales.
Limnology & Oceanography, 2015

Ecosystem regime shifts typically occur without warning and with adverse effects for human well-being. This study demonstrates proof-of-concept that regime shifts can be detected in advance, which creates the potential to avoid unwanted regime shifts through adaptive ecosystem management.
Science, 2011

Long-term records from important rivers and streams across the United States reveal consistent warming trends related to climate change and urbanization.
Frontiers in Ecology and the Environment, 2010

Recent Publications

More Publications

. Food inequality, injustice, and rights. BioScience, 2019.

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. Food, Trade and the Environment. Environmental Research Letters, 2018.

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. Wind and trophic status explain within and among-lake variability of algal biomass. Limnology & Oceanography: Letters, 2018.

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. Similarity in spatial structure constrains ecosystem relationships: Building a macroscale understanding of lakes. Global Ecology and Biogeography, 2018.

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Food Security, Trade, and the Environment

Trade redistributes risks to food security, and the environmental impact of food production.

How many lakes are on Earth and how big are they?

Theoretical and empirical analyses of the abundance and size of Earth’s lakes.

Limnology and Oceanography Research Exchange

International research engagement for graduate level professional development.

Carbon cycling in northern lakes

Lakes have dual roles in the carbon cycle as ecosystems that both fix inorganic carbon through photosynthesis and minerlize organic carbon from internal and external sources.

Early Warning of Ecosystem Tipping Points

Unique statistical signals warn of impending tipping points.

Stream and River Temperature Trends

Stream and river water temperatures are rising across the United States.


Classification as post-doctoral employment or post-doctoral scholarship has important implications for taxation and access to social welfare benefits.