Field of Focus
  • Ecology
  • Systematics
  • Geosciences and Geochemistry
  • Coastal Development
  • Biochemistry and Molecular Structure and Function
  • Genetics and Nucleic Acids
  • Marine Geology and Geophysics
Area of Expertise
Invertebrate Molecular Evolutionary Relationships and Genomics
Education
  • M.A. San Francisco State University, San Francisco, CA, USA, 1979
  • Ph.D. University of Texas, Austin, TX, USA, 1985
  • Postdoctoral Fellow, University of Utah, UT, USA, 1985-1987

Most recently, we have been investigating the biogeochemistry of coastal sinkholes and cave systems along the west Florida coast. We have developed high throughput sequencing approaches to the study of meiofaunal community structure in marine sediments. A pilot study was carried out in the Tampa Bay and we are now applying this method to the sink/cave studies as well as a National Science Foundation funded biocomplexity project in Papua New Guinea. We are also applying the method to a global study of soil biocomplexity, also funded by the NSF.

Other projects in my lab include a phylogeny of tardigrades using 18S rRNA gene sequences and a metazoan phylogeny using sequences from several protein coding nuclear genes. Previous research in my laboratory involved the use of molecular sequence data to investigate the evolutionary relationships of invertebrate animals. Investigations carried out in my lab have shown that protostomes are divided into two major lineages: the Ecdysozoa (molting animals: arthropods, tardigrades, priapulids and others) and the Lophotrochozoans (annelids, molluscs, lophophorates and others).
Prior to joining USF I held the following positions:
Research Assistant Professor, University of Utah 1988-1991
Assistant Professor, Duquesne University, 1991-1997
Associate Professor, Duquesne University, 1997.