Eco-Evolutionary Consequences of Global Change on Invasive Plant Species

Human activities are dramatically impacting ecosystems worldwide due to air pollution – and resulting changes to climate and nitrogen cycling – and the spread of nonnative plant species. These drivers of global change may have strong and interactive ecological effects, but the evolutionary impacts of these factors are poorly understood. La Kretz postdoc Justin Valliere is currently exploring potential adaptation to nitrogen pollution and climate in common invasive plant species of California. This study will have important implications for invasive plant management under predicted global change.

Ecological Impacts of Nitrogen Deposition on Coastal Sage Scrub of the Santa Monica Mountains

California’s native ecosystems are increasingly impacted by nitrogen deposition resulting from air pollution, particularly in the greater Los Angeles area. This project, led by La Kretz postdoc Justin Valliere, extends an ongoing collaboration between the National Park Service, the U.S. Forest Service and the UCLA, with the goal of understanding the ecological impacts of nitrogen pollution on the severely threatened coastal sage scrub plant community of the Santa Monica Mountains.

Still image from Holoscenes/Anthroposcene Suite 1 by Lars Jan.

Holoscenes/Anthroposcene Suite 1 by Lars Jan

Holoscenes is a multi-platform artwork colliding the human body with water. The work includes performance installation, video, photographic, and print components. The Anthropocene Suite is a quartet of projections featuring multiple performers carrying out a series of everyday behaviors while animated by several thousand gallons of water in an aquarium-like sculpture. Their behaviors are transformed...

Landscape Conservation Cooperative

The Center for Tropical Research has recently developed new models in California to determine the amount of intraspecific genetic variation present in an area. Recently, we tested this new approach in the Santa Monica Mountains National Recreational Area (SMNRA), part of the southern subunit (2) of the California Landscape Conservation Cooperative.