WHAT: Postdoc Practice Job Talk: Xiaoli Dong, Ph.D., Nicholas School of the Environment
WHEN: Tues Jan 16, 9:30-10:30 am
WHERE: Bryan Research Auditorium, Rm 103 (location: ground-level floor of http://maps.duke.edu/map/?id=21&mrkIid=2773)
The Duke University Postdoc Association (DUPA) and the Office of Postdoctoral Services provide postdocs the opportunity to practice their job talks and get valuable feedback from a diverse and intelligent audience – this means YOU! If you are interested in giving a practice job talk, please e-mail Ashley and Will (see below).
On Jan 16 at 9:30 am, Xiaoli Dong from the Nicholas School of the Environment will present her talk on “Ecosystem Spatial Heterogeneity: Formation, Consequences, and Ecohydrological Feedbacks” (abstract below). We encourage postdocs to attend and support Xiaoli by providing feedback! You don’t have to be in the same field of study; presenters receive valuable info from audience members about clarity, communication style, and other ‘big picture’ issues.
Title and Abstract: Ecosystem Spatial Heterogeneity: Formation, Consequences, and Ecohydrological Feedbacks
A landscape is a mosaic of biotic and abiotic patches. My research explored the formation, consequences, and ecohydrological feedbacks associated with ecosystem spatial heterogeneity. Specifically, I investigated the relative importance of stochasticity, self-organization, and physical template in forming spatial patterns, and how their relative contribution changed in time (ecosystem successional time, intra- and inter-annual variability). The spatial patterns I examined include nutrients in stream surface water, macrophytes along stream channels, and metacommunity biodiversity in a river network. I demonstrated that self-organization, physical template, and stochasticity operate simultaneously and interactively to create various ecological patterns. These drivers can also operate independently. Using a case study of Big Cypress National Preserve, I investigated the mechanisms of self-organization as a sole driver generating strikingly evenly spaced cypress domes on an otherwise homogeneous flat landscape in South Florida over the past 10,000 years via ecohydrological feedbacks at three spatial scales.