My current focus is inference of population processes from phenotypic and genomic data.

During my postdoc with Brad Shaffer at UCLA, I am working in collaboration with Peter Ralph at University of Oregon, to develop methods that use genomic data to inform demographic models of the desert tortoise (Gopherus agassizii ...

My Ph.D. is focused on modelling populations that exhibit rapid responses to environmental change.

I focus on understanding the consequences of trait change due to evolutionary and plastic responses in changing enviornments. For some years, I have been developing theory on population dynamics resulting from these processes. Most of ...

Phenotypic plasticity and its evolution may help evolutionary rescue in a novel and stressful environment, especially if environmental novelty reveals cryptic genetic variation that enables the evolution of increased plasticity (panels a and b in the figure below). But the environmental stochasticity ubiquitous in natural systems may alter these predictions ...

The potential for extirpation of extremely small populations (ESPs) is high due to their vulnerability to demographic and environmental stochasticity and negative impacts of human activity. We argue that conservation actions that could aid ESPs are sometimes delayed because of a fear of failure. In human psychology, the fear of ...