April 19 2018

5:00 pm 1100 TLSB

EcoEvoPub Series

Graduate Student Presentations


Zack Gold
Department of Ecology and Evolutionary Biology, UCLA

"Photographing Nature: Using Photography to Communicate Science and Biodiversity"

Photography is a powerful tool for both research and communication. This medium is an increasingly important form of communication especially with the democratization of cameras. Armed with tools and a keen eye, now more than ever scientists have the capability to rapidly disseminate their science in a digestible and expressive format that transcends language barriers and cultures. In particular, nature photography has an important role in capturing important features of biology whether it's predation in action or the effects of bleaching on coral reefs. All of us have experienced the power of a photograph whether it was the cover of a National Geographic magazine or an Instagram post. As an aspiring hobby nature photographer, I'll share what I have learned from nature and conservation photography classes and my own experiences through the medium itself along with a great collection of nature videos and gifs. I hope to have a great discussion on the role of nature photography in both research and science communication.

Scott O'Donnell
Department of Ecology and Evolutionary Biology, UCLA

“Filling in the Missing Pieces: Using Demographic Modeling to Estimate the Timing and Extent of Hybridization Between. Two Oak [Quercus spp.] Species in Southern California”

Oaks are well known for their propensity to hybridize with closely related species when in sympatry. A useful example of this ability is present in the case of the ubiquitous scrub oak Quercus berberidifolia and the tree oak Q. engelmannii in southern California. These species show a complex pattern of hybridization and introgression where their ranges overlap along fine-scale habitat and climatic gradients. Genomic evidence has shown both ancient and contemporary hybridization and introgression between these taxa, but there is insufficient physical evidence to determine the timing of admixture between these species on more ancient time scales. One way to attempt to overcome any shortcomings in the physical record is through demographic modeling using simulated data sets. By utilizing such tools, it can be possible to paint a clearer picture of the evolutionary history of these species in order to determine the role that hybridization and introgression have played in the diversification and evolution of these lineages.

















































































































































































































































































































































































































































































































































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