CA landscape
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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

Behavioral Ecology and Cultural Evolution

Heliconius mating
We are interested in behaviors as they affect foraging and life history traits.  Studies include foraging choices of adult butterflies among different flower species and other substrates such as mud, dung & carrion; the effects of sexual and natural selection on wing color patterns and fitness; and the role of nuptial gifts in the adult resource budget under variable environments.
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.
pop structure
Evolution of sex and recombination in structured environments.  Mathematical and computational models for the evolution of learning. Mathematical and statistical models of cultural evolution.
Our lab studies how ant colonies operate without central control. Individual ants use the pattern of recent interactions in task decisions. This dynamical network allows the colony to adjust the numbers performing each task, in response to changing conditions and colony needs. We are investigating how task allocation changes as the colony develops and how colony organization determines the foraging ecology of populations.
Gordon ants
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.
Heirarchical evolution in honeybee and social insects. Evolution of diversity in life history and senescnece in social species.
US pop pyramid
Stanford Seal Stanford Department of Biology