Ecology

Porter

I have research interests at a variety of scales, from microhabitat utilization of mice to biogeographic structures of entire island chains. Current research projects include: (1) the use of remotely sensed images and geographical information systems to produce chonosequences of insular vegetation, (2) testing of theories of socially induced dispersal, (3) biogeography of insular mammals, and (4) characteristics of image sources (satellites and aerial photographs) that affect perceptions of ecological landscapes.

Pace

I am an aquatic ecologist with broad interests in lake, river, and estuarine ecosystems. I currently have research projects focused on: 1) the detection of leading indicators of ecosystem regime shifts using whole-lake manipulations, 2) sources of organic matter for aquaculture in the Virginia Coastal Reserve, 3) the importance of terrestrial organic matter in supporting freshwater aquatic food webs, and 4) the long-term impacts of a zebra mussel invasion in a river ecosystem.

Mills

Active projects examine the microbial transformations of contaminants and trophic transfer of energy through microorganisms. A main line of inquiry deals with bacteria in the subsurfce (groundwater) environment. Current projects include field and laboratory investigations of hydrological factors controlling the transient removal of agricultural nitrate in sediments of low-relief coastal streams, and the role of autotrophic microbes in the dissolution of carbonates in submerged caves.

McGlathery

My research group focuses on the dynamics of ecosystem change in shallow coastal systems, and the roles of climate, nutrient over-enrichment and species invasions on driving these changes. Current projects include: 1) Blue carbon sequestration in seagrass ecosystems, 2) Seagrass restoration and return of ecosystem services, 3) salt marsh resilience to sea-level rise, 4) ecosystem regime shifts in coastal barrier systems, and 5) impacts of invasive macro algae (Gracilaria).

Lerdau

I am an organismal ecologist with interests in both the ecosystem implications of physiological processes and the evolutionary underpinnings of these processes. My research centers around fundamental questions of resource acquisition and allocation in plants and touches upon such topics as herbivory and tri-trophic interactions, atmospheric chemistry and air pollution, community and ecosystem impacts of biological invasions, and organismal controls over element cycling.

Lawrence

Deborah Lawrence CV

Lawrence Policy experience

Haynes

The central aim of my research is to elucidate the processes driving fluctuations in population abundance across time and space. I address theory that is relevant to conservation of native and beneficial insects as well as management of agricultural and forest pests. My approach blends field experiments, analysis of spatial data, and theoretical modeling.

Epstein

My current research efforts are in the arctic tundra of North America and Russia, and the temperate forests of the U.S. Mid-Atlantic. In the Arctic, we are examining the recent dynamics of arctic tundra vegetation in response to changing climate and disturbances, and the effects that these vegetation changes have on other arctic ecosystem properties. In the U.S. Mid-Atlantic we are examining carbon cycling along successional gradients from old-field to old-growth, as well as carbon-water interactions in topographically complex watersheds.

Castorani

I am a marine ecologist with primary interests in population and community ecology. Although projects in our research group are diverse, we are collectively interested in understanding patterns of biodiversity in coastal marine ecosystems such as kelp forests, seagrass meadows, and oyster reefs. Our studies combine long-term observations, experiments, and models to explain the abundance and distribution of species across a broad range of spatial scales.

Carr

I am interested in a diversity of topics in population and ecological genetics within the broad context evolutionary ecology. My research is question-driven and has included both animals and plants. Over the past several years my research has focused on the effects of inbreeding on the interactions between plants and their antagonists (herbivores and pathogens) and their mutualists (pollinators). In addressing these problems I have conducted experiments in the field as well as the greenhouse, and my approach has relied extensively on the techniques of quantitative genetics.

Department of Environmental Sciences