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Science Experts

Scientists at the Academy are experts in their fields. They have broad knowledge of their subjects and detailed knowledge of their specialty. The media is welcome to interview the scientists below for stories about their research and related issues.

Interviews can be conducted in person, by e-mail, by phone, or by SKYPE. To arrange an interview, contact Carolyn Belardo at belardo@ansp.org, or 215 299-1043.

Watershed and Aquatic Ecology Issues

David Velinsky

David Velinsky, Ph.D.

VP for Science; Department Head; Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Fate and transport of chemical and other contaminants in water systems, especially in estuaries near urban centers. Profile

Don Charles

Donald Charles, Ph.D.

Senior Scientist, Phycology, and Professor, Department of Biodiversity, Earth & Environmental Science, Drexel University
Expertise: Ecology of freshwater diatoms and their use as indicators to assess current and past environmental conditions. Profile

Carol R. Collier

Carol R. Collier, P.P., AICP

Senior Advisor for Watershed Management & Policy;
Director, Environmental Studies and Sustainability Program (ENSS), Department of Biodiversity, Earth & Environmental Science

Expertise: Experienced leader in regional watershed management and policy. Profile

Rich Horwitz

Richard Horwitz, Ph.D.

Senior Scientist, Fisheries Section Leader, Ruth Patrick Chair of Environmental Sciences, Patrick Center for Environmental Research; Associate Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Reproductive ecology, life history and distribution of freshwater fishes; effects of land use on species. Profile

Marina Potapova

Marina Potapova, Ph.D.

Assistant Curator, Diatoms; Assistant Professor, Department of Biodiversity, Earth & Environmental Science, Drexel University
Expertise: Ecology and taxonomy of freshwater diatoms and their use to monitor human impacts. Profile


Stefanie A. Kroll

Project Science Director, Acting Macroinvertebrate Section Leader, Patrick Center of Environmental Research; Assistant Research Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Watershed and stream ecology, aquatic macroinvertebrate ecology and as bioindicators, restoration ecology, human stressors on aquatic ecosystems, climate change. Profile.

Marie Kurz

Marie J. Kurz

Research Scientist & Biogeochemistry Section Leader, Patrick Center for Environmental Research; Assistant Research Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Hydro-bio-geochemical controls on the sources and cycling of solutes in freshwater ecosystems; Reciprocal interactions between ecosystem function and solute availability, transport and retention; Groundwater-surface water interactions; Linking catchment-scale patterns in solute and ecosystem dynamics to process understanding; (Adaptive) management of water resources and aquatic ecosystems. Profile


Elizabeth Burke Watson

Wetlands Section Leader, Patrick Center for the Environmental Research; Assistant Professor of Wetlands Science, Department of Biodiversity, Earth and Environmental Science
Expertise:Wetlands Ecology, Global Change, Ecohydrology, Paleoecology, Spatial Analyses. Profile

Roland Wall

Roland Wall

Wetlands Section Leader, Patrick Center for the Environmental Research; Assistant Professor of Wetlands Science, Department of Biodiversity, Earth and Environmental Science
Expertise:Wetlands Ecology, Global Change, Ecohydrology, Paleoecology, Spatial Analyses 

Biodiversity, Evolution, and Systematics Issues

The foundation of this scientific work is the collection of more than 18 million plant and animal specimens used by researchers around the world.

Fossils and Paleontology

Ted Daeschler

Edward Daeschler, Ph.D

Associate Curator of Vertebrate Zoology; Associate Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Evolution of early tetrapods, including Tiktaalik roseae, and the collecting and describing of fossils. Profile

Ned Gilmore

Ned Gilmore

Collection Manager, Vertebrate Paleontology
Expertise: Late Cretaceous and Early Tertiary fossils of eastern North America. Profile

Fish

John Lundberg

John Lundberg, Ph.D.

Emeritus Curator; Emeritus Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Biogeography, vertebrate morphology and paleobiology of fish, especially from South America. Co-principal of the global All Catfish Species Inventory. Profile

Mark Sabaj-Perez

Mark Henry Sabaj Peréz, Ph.D.

Collection Manager, Ichthyology
Expertise: Catfishes, South American rivers and fishes, taxonomy and evolution. Co-principal of the global All Catfish Species Inventory. Profile

Insects

Jon Gelhaus

Jon Gelhaus, Ph.D.

Curator, Department of Entomology; Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Systematics and ecology of worldwide crane flies. Leader of the Mongolian Aquatic Insect Survey, including water quality research in Mongolia. Co-leader of New Jersey Pinelands (Pine Barrens) insect survey. Profile

Jason Weintraub

Jason Weintraub

Collection Manager, Entomology
Expertise: Biogeography, ecology, and evolution of worldwide butterflies and moths. Profile

Greg Cowper

Greg Cowper

Curatorial Assistant, Entomology
Expertise: Systematics, evolution, and biogeography of Heteroptera, the true bugs; history of entomology.

Birds

Nate Rice

Nathan Rice, Ph.D.

Associate Curator of Ornithology; Associate Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Evolutionary biology of neotropical bird groups, especially antbirds and their relatives. Profile

Jason Weckstein

Jason Weckstein, Ph.D.

Associate Curator of Ornithology and Associate Professor, Department of Biodiversity, Earth & Environmental Science, Drexel University
Expertise: Avian phylogenetics, comparative biology and evolutionary history; biodiversity surveys of birds and their parasites and pathogens; and co-evolutionary history of birds and their parasites. Profile

Plants

Tanya Livshultz

Tatyana Livshultz, Ph.D.

Assistant Curator of Botany; Assistant Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Evolution and pollination of plants, especially the milkweed and dogbane family. Profile

Rick McCourt

Rick McCourt, Ph.D.

Associate Curator of Botany & Director of the Center for Systematic Biology and Evolution; Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Evolution and systematics of green algae. Profile

Ernie Schuyler

Alfred E. Schuyler, Ph.D.

Curator Emeritus, Botany
Expertise: Systematics and ecology of rare plant species, relationships between plant diversity and environmental quality, and history of botany. Profile

Mammals, Reptiles, and Amphibians

Ned Gilmore

Ned Gilmore 

Collection Manager, Mammalogy and Herpetology
Expertise: Mammals of Pennsylvania, New Jersey and Delaware. Profile

Diatoms

Marina Potapova

Marina Potapova, Ph.D.

Assistant Curator, Diatoms; Assistant Professor, Department of Biodiversity, Earth & Environmental Science
Expertise: Ecology and taxonomy of freshwater diatoms and their use to monitor human impacts. 
Profile

Invertebrates


Jocelyn Sessa

Assistant Curator, Invertebrates; Assistant Professor, Department of Biodiversity, Earth & Environmental Science
Expertise:Paleoecology, ocean acidification, extinction recovery dynamics, global warming. Profile.