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Professor; Curator and Chair of Vertebrate Zoology, Academy of Natural Sciences of Drexel University
Academy of Natural Sciences of Drexel University 1900 Benjamin Franklin Parkway Philadelphia, PA 19103
ebd29@drexel.edu
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- Vertebrate Paleontology
- History of the Earth
- Late Devonian fossil vertebrates
- Origin of tetrapods
- Fossil collecting
- Museum curation
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Curator and Department Chair, Entomology Department, Academy of Natural Sciences
Department of Entomology, Academy of Natural Sciences of Drexel University
jkg78@drexel.edu
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- Taxonomy
- Systematics
- Entomology
- Biodiversity
- Water Quality
- Museum Collections
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Visiting Research Associate Professor in the Department of Biodiversity, Earth, and Environmental Sciences
PISB 315
dak29@drexel.edu
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Associate Professor; Assistant Curator of Botany, Academy of Natural Sciences
ANS
tl534@drexel.edu
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- Botany
- Phylogenetic reconstruction
- Evolution of plant specialized metabolism
- Plant-insect interactions
- Plant functional morphology
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Professor Emeritus of Biodiversity, Earth & Environmental Science; Curator Emeritus, ANS
jgl43@drexel.edu
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Most of my research concerns the diversity and diversification of fishes. I seek to document and interpret the character (morphological and molecular) and taxonomic diversity of living and fossil fishes in the interrelated fields of systematics, faunistics and biogeography, and paleobiology. My work has a significant field component with exploration and collecting in poorly-known tropical freshwater habitats and regions.
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Professor; Chair, Institutional Animal Care and Use Committee
PISB 318
oconnomp@drexel.edu
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- Thermal, hydric, & energetic effects on the activity and distribution of reptiles and amphibians
- Physical constraints on heat and mass exchange by reptiles and amphbians
- Physiological and physical constraints on gas exchange in sea turtle nests - effects on metabolism and development
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Professor
PISB 324
so356@drexel.edu
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- Brain plasticity and the evolution of brain structure
- Social behavior and division of labor, especially of eusocial Hymenoptera
- Thermal ecology and thermal physiology
- Network models of social group organization
- Behavior and ecology of bird-army ant interactions
- Human-safe insecticides
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Professor Emeritus of Biodiversity, Earth & Environmental Science; Senior Curator Emeritus, ANS
Entomology, ANS
do332@drexel.edu
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I am a taxon scientist who specializes on the the taxonomy and biogeography of Orthoptera (grasshoppers, crickets, katydids and their relatives), but I concentrate mainly on grasshoppers (Acridoidea) and crickets (Grylloidea). My principal interest, besides discovering new taxa, is in studying the origin of species.
Over my career I have worked mainly on large faunal treatments of crickets (crickets of Australia, Hawaii, the Caribbean, Fiji, and New Caledonia) and grasshoppers (North America and southern Africa). I have discovered and named approximately 1600 species and have discovered nearly 25% of the World’s 5000+ cricket species.
My main emphasis has been in studying the earliest stages of speciation. In crickets I use mainly the songs for initial recognition of species. This allowed me to discover large numbers of species that could not be distinguished by morphology alone.
I spent approximately 15 years assembling major online catalogs to the world’s species of Orthoptera, Mantodea, Phasmida and Blattodea. All told, the catalogs cover about 45,000 species. The databases are almost unique in biology in scope; they cover all known species and have begun to accumulate everything known about the world’s species (images, distribution, habitat, ecology, life cycles, etc). The Orthoptera Species File is now financially endowed and will be supported in perpetuity. No other taxonomic databases are as comprehensive.
I am currently attempting to complete two faunal treatments of grasshoppers: an all-species taxonomic treatment of North American grasshoppers, covering the entire continent (plus the Caribbean basin), plus an all-species treatment of the grasshoppers of Southern Africa (from the Zambezi southwards). Each volume will contain approximately 1000 species (of these about 20% of the species are expected to be new to science).
I spend much of my time working in museums that have good holdings of North American and southern African grasshoppers (Berlin, London, Madrid, Paris, University of Michigan, California Academy of Sciences, and the National Insect Collection in Pretoria). |
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- Water quality
- Algae, Protists
- Diatoms
- Aquatic Ecology
- Biological Collections
- Environmental Pollution
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Professor; Pilsbry Chair of Malacology, Academy of Natural Sciences
Malacology, ANS
gr347@drexel.edu
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- Malacology
- Systematics
- Evolution
- Taxonomy
- Nomenclature
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Professor
PISB 325
jar337@drexel.edu
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- Roles of bacterial symbionts in ant evolution
- Function, stability, and dynamics of heritable symbiont communities in aphids
- Genomic mechanisms driving correlations between symbiosis and insect ecology
- Coevolutionary histories between insects and their microbes
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Assistant Research Professor; Director of the Environmental Studies and Sustainability Program Dolan Fellow for Innovation in Water Science, Patrick Center for Environmental Research, Academy of Natural Sciences
Patrick Center 336
as5293@drexel.edu
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- Environmental policy and politics
- Urban planning
- Sustainability and resilience transitions
- Policy implementation
- Local knowledge and community science
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Associate Professor; Associate Curator, Invertebrate Paleontology Department, Academy of Natural Sciences of Drexel University
Academy of Natural Sciences of Drexel University 1900 Benjamin Franklin Parkway Philadelphia, PA 19103
jsessa@drexel.edu
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- Ocean acidification
- Mollusks
- Climate change
- Paleobiology
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Associate Professor
PISB, Room 322
loyc@drexel.edu
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- Volcano remote sensing and monitoring
- Volcanic gasses
- Igneous petrology and geochemistry
- Large Igneous Provinces
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Professor
The Academy of Natural Sciences, 2nd Floor 1900 Benjamin Franklin Parkway, Philadelphia, PA
velinsky@drexel.edu
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- Fate and transport of chemical contaminants
- Stable isotope and nutrient biogeochemistry
- Sediment geochemistry and deposition
- Water quality
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Associate Professor Associate Curator of Ornithology, Academy of Natural Sciences of Drexel University
Academy of Natural Sciences of Drexel University Ornithology Department 1900 Benjamin Franklin Parkway Philadelphia, PA 19096
jdw342@drexel.edu
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- Phylogenetics
- Host-parasite coevolution; Ornithology
- Systematic biology; Comparative biology
- Biodiversity surveys
- Genomics
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