Tag Archive for enviornmental studies

Sultan Speaks at Conference on New Trends in Evolutionary Biology

Sonia Sultan

Sonia Sultan

Sonia Sultan, professor of biology, professor of environmental studies, was a guest speaker at the “New Trends in Evolutionary Biology: Biological, Philosophical, and Social Science Perspectives,” conference hosted by The Royal Society, London held Nov. 7-9.

The international event, in an effort to encourage cross-disciplinary discussion, brought together researchers from the humanities, sciences and social sciences to examine the many “developments in evolutionary biology and adjacent fields, which have produced calls for revision of the standard theory of evolution.”

As part of the conference, Sultan spoke about “Developmental Plasticity: Re-conceiving the Genotype,” a topic which examines the possibility of “re-conceiving the genotype as an environmental response repertoire rather than a fixed developmental program.”

Sultan’s work also was featured in an article published in The Atlantic on Nov. 28, which highlighted the move to expand upon the theory of evolution.

Using the smartweed plant and its living, environmental conditions as an example, Sultan explained how allowing the plant to grow in low sunlight versus allowing the plant to grow in bright sunlight produces plants “that may look like they belong to different species, even though they’re are genetically identical.” In low sunlight the leaves take on a very broad shape, where as in bright sunlight they are narrower. “This flexibility or plasticity in adapting to the amount of sunlight can itself help drive evolution, by allowing the plant to spread to a range of habitats,” she says.

More on Sultan’s work, as well as, the work of other presenters can be found here.

Lefkowitz ’12, Thomas, Varekamp Co-Author Chapter On Volcanic Lakes

Based on the senior thesis of Jared Lefkowitz ’12, “A Tale of Two Lakes: The Newberry Volcano Twin Crater Lakes, Oregon, USA,” was published online, Nov. 25, by the Geological Society of London, U.K, as part of the volume, Geochemistry and Geophysics of Active Volcanic Lakes. The study is co-authored by Lefkowitz; Ellen Thomas, research professor in earth and environmental science; and Johan Varekamp, the Harold T. Stearns Professor in Earth Science. Varekamp also is professor of environmental science, adjunct professor in Latin American studies, and chair of the Geological Society of America’s Limnogeology Division. Thomas also is the University Professor in the College of Integrates Sciences.

The chapter examines the complex ecosystems of Newberry Volcano’s two small crater lakes, East Lake and Paulina Lake, which are of interest to scientists because of the presence of highly toxic components and the signs gas-charging in East Lake. “These factors present natural hazards, which may change when new volcanic activity is initiated,” Varekamp explained. The presence of nearby “seismic triggers or disrupted lake stratification gives scientists a situation to monitor, as these factors can cause sudden intense CO2 degassing in the very different chemistries and gas contents of the two lakes.”

The authors’ abstract is online here.

Additionally, Varekamp contributed papers on Taal Lake in the Philippines and on the Copahue Volcano crater lake in Argentina. Both of these chapters will be published in the same volume in the upcoming weeks.

Wesleyan Enters ‘RecycleMania’ Again

Between Jan. 18 and March 28, Wesleyan will once again join the more than 470 colleges and universities from across the country participating in RecycleMania, a national recycling and waste minimization competition. This is Wesleyan’s fourth year participating.

Wesleyan is participating in RecycleMania for the fourth time.

Wesleyan is participating in RecycleMania for the fourth time.

“Our goal is to make people aware of how much trash and recyclables they are generating, and to hopefully minimize waste and increase awareness about recycling,” says Jeff Miller, associate director for facilities management and chair of the Recycling and Waste Committee, a subcommittee of Wesleyan’s Sustainable Advisory Group for Environmental Stewardship. “We’re interested in measuring how much waste goes out of this campus.”

During the 10-week contest, Wesleyan will record the volume of paper, cardboard and glass/metals/plastics collected from most academic, administrative, on-campus student dormitory facilities and the Usdan University Center. Wesleyan also will record the amount of garbage.

Weekly measurements will be taken by