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Liz & Whale

• Behavioral Ecology &
Cultural Evolution

Conservation Biology

Ecosystem & Global Ecology

Evolutionary Biology, Molecular Evolution, & Population Genetics

Physiological & Functional Ecology

Population Biology & Demography

Species Interactions & Community Ecology

Research Opportunities for Undergraduates

Ecosystem and Global Ecology

Las Cruces Countryside
My research group is focused on the future course of extinction; on resulting changes in community composition and interactions, and in the delivery of ecosystem services; and on realizing novel opportunities for conservation in agricultural landscapes.
Current research in the Ehrlich lab is concentrated on a global evaluation of the population-environment-resource situation, with special focus on conservation biology and cultural evolution.
Projects at a range of scales, from plot scale manipulations of temperature and carbon dioxide to global-scale analyses of satellite data and climate models.   These include studies on biogeochemistry, ecophysiology, species interactions, and the molecular composition of the microbial community.
One of our research foci is the ecosystem-level consequences of community assembly history. For example, we are studying the effect of immigration history in communities of wood-decay fungi on wood decomposition and nutrient cycling.
Macroevolution and macroecology of mammals
In collaboration with scientists from academic institutions and NGOs we are conducting global and regional analyses of threats to marine ecosystems
global map
The relationship between ecosystem functioning and ecosystem services; global change impacts on a California grassland ecosystem.
We model ecosystem-scale effects of anthropogenic change on ocean systems.  In addition, we are very interested in the effects of ecosystem diversity on ecosystem resilience and the application of diversity measures as a tool to guide management decisions.
marine ecosystem services
We presently study the evolution of social behavior and mutualism, emphasizing the role of cooperation, and using cooperative game theory. We are working on the ``social selection project'' to develop alternatives to sexual selection theory and its corollaries. Previous work in the lab has also investigated the evolutionary community ecology of Caribbean Anolis lizards, the role of coupled oceanic and benthic processes in the population dynamics of intertidal invertebrates, and the theory of ecological economics.
Climate change impacts assessment (e.g., ecological impacts), climate policy analysis, economic and physical implications of mitigation and adaptation strategies, dangerous climate change, treatment of uncertainty in climate change projections, public understanding of science, modeling of paleoclimates and of human impacts on climate.
joint distribution histogram
remote sensing
I seek to understand the biogeochemical cycles of nitrogen, phosphorus, and other elements, on scales from local ecosystems to global.  My lab's research uses the Hawaiian Islands as a model system in which we can identify and elucidate the mechanisms controlling biogeochemical cycles - including human modifications of those cycles, and their ecological consequences.  Recent work has focused on human-environment interactions in Hawaiian agriculture prior to European contact.
Stanford Seal Stanford Department of Biology