Crabs in Marsh Ecosystems," with Anson Hines from April 

 15, 1998 to April 14, 1999. 



Ryouji Shimamura, Visiting Student, Tokyo Metropolitan 

 University. "Effects of Water Dispersal of Seeds on Genetic 

 Structure within a Population in a Wetland Plant, Hibiscus 

 TTioscheutos," with Dennis Whigham from October 1, 1997 to 

 September 30, 1998. 



Evonne PY. Tang, Postdoctoral Fellow, Universite Laval, 

 Canada. "Spectral Resonse of Dinoflagellates to Visible 

 Light," with Patrick Neale from Seprember 1, 1998 ro 

 August 31, 1999. 



Heather Turner, Visiting Student, North Carolina State 

 Universiry. "Migration Dynamics in Female Blue Crabs in 

 the Chesapeake Bay," with Anson Hines from June 1, 1998 

 ro December 15, 1998. 



Smithsonian Tropical Research Institute 



Yves Basset, Tupper Postdoctoral Fellow, Griffith Universiry, 

 Australia. "Vertical Gradients of Insect Diversity in Rain 

 Forests: Communities of Insect Herbivores Feeding on 

 Mature Trees vs. Seedlings," with S. Joseph Wright and 

 Donald Windsor from August 15, 1998 to August 14, 1999. 



Reginald B. Cocroft, Postdoctoral Fellowship, Cornell Univer- 

 sity. "The Role of Communication in Social Behavior Sig- 

 nals and Responses in Group-living Insects (Homoptera: 

 Membracidae)," with A. Stanley Rand and John Christy 

 from January 15, 1998 ro January 14, 1999. 



Darren Crayn, Visiting Scientist, University of New South 

 Wales. "The Evolutionary Origins of Epiphytism and Cras- 

 sulacean Acid Metabolism within the Neotropical Family 

 Bromeliaceae," with Klaus Winter and J. Andrew Smith 

 from January 1, 1998 to December 31, 1999. 



Cameron R. Currie, Predoctoral Fellow, University of Toron- 

 to, Canada. "Parasitism of Attine Fungal Gardens," with 

 William Wcislo from June 1, 1998 to May 31, 1999. 



Benoit Desjardins, Shorr-Term Fellow, Universite de 



Montreal, Canada. "Public Works or the Village Dump?" 

 with Richard Cooke from July 10, 1998 to October 9, 1998. 



Elizabeth Dougherty, Short-Term Fellow, University of Penn- 

 sylvania. "The Dynamics of Modem Conservation and Com- 

 munity Development Practices in Rural Panama," with 

 Olga Linares from February 1, 1998 to April 30, 1998. 



Jessica R. Eberhard, Postdoctoral Fellow, Princeton Univer- 

 sity. "Phylogeography oiPionopsttta Parrots and Ptsroglossus 

 Toucans: A Tesr of Haffer's Pleistocene Refuge Hypothesis," 

 with Eldredge Bermingham from August 1, 1998 to July 51, 

 1999. 



John C. Griggs, Predoctoral Fellow, University of Texas, Aus- 

 tin. "Archaeological Excavations and Survey at a Shaft-and- 

 Chamber Tomb Cemetery Site, Colon Province, Panama," 

 with Richard Cooke from June 1, 1998 to May 31, 1999. 



Kristina Hufford, Short-Term Fellow, University of Georgia. 

 "Demographic Genetics diPlatypodium degans: Selection at 

 Three Early Life Stages," with E. Allen Herre from March 

 10, 1998 to July II, 1998. 



Gwen Keller, Short-Term Fellow, University of Miami. "A 

 Survey of Genetic Variation Among Population oiChdyrnor- 

 pba alternam, " with Donald Windsor from December 15, 



1997 to March 15, 1998. 



David M. Marsh, Predoctoral Fellow, University of California, 

 Davis. "Effects of Breeding Pond Density on the Behavior 

 and Population Dynamics of a Tropical Frog," with A. Stan- 

 ley Rand from June 1, 1998 ro September 30, 1998. 



Michael A. McCartney, Visiting Scientist (Co-Princ. Inves- 

 tigator/SSP), State Universiry of New York, Stony Brook. 

 "Evolution of Loci Controlling Gameric Isolarion in Sea Ur- 

 chins Separated by the Isthmus of Panama," with Harilaos 

 Lessios from February 1, 1998 to December 31, 1998. 



Susan B. McRae, Postdoctoral Fellow, University of 



Cambridge, U.K. "Ecological Factors Affecting Reproduc- 

 tive Strategies in a Tropical Population of Moorhens," with 

 William Wcislo and Eldredge Bermingham from May 15, 



1998 to December 15, 1999. 



Drude Molbo, Short-Term Fellow, Universite de Lausanne, 

 Switzerland. "Genetic Mating and Sex Ratio of Fig-As- 

 sociated Wasps," with E. Allen Herre from Augusr 1, 1998 

 to November 1, 1998. 



Steven M. Phelps, Predoctoral Fellow, University of Texas, 

 Austin. "Vestigial Preferences in the Tungara Frog and its 

 Congener Field Tests of Neural Network Predictions," 

 with A. Stanley Rand from May 15, 1998 to August 14, 1998. 



Kendra Pyle, Short-Term Fellow, Universiry of Pennsylvania. 

 "Vocal Communication and the Maintenance of Social Rela- 

 tions in Coatis, Kasua narica," with William Wcislo from 

 June 1, 1998 to August 28, 1998. 



Sandra Ramirez, Short-Term Fellow, Universiry of Costa Rica. 

 "Large Seed Size in Gustavm superba: A Dispersal Reward or 

 an Establishment Requirement," with S. Joseph Wright 

 from May 15, 1998 to August 15, 1998. 



Oris Sanjur, Visiting Scientist, Rutgers Universiry. 



"Molecular Systematica of Domesticated and Wild Species 

 of Cucurbita," with Dolores Pipemo from April 1, 1998 to 

 May 31, 1999. 



Renate Sponer, Short-Term Fellow, Universiry of Copenhagen. 

 "Phylogeography, Popularion Structure and Asexual 

 Reproduction in the Viviparous, Cosmopolitan Brirtle Star 

 Amphipholis aquamata: A Multidisciplinary Approach to 

 Studying Evolutionary Processes in Marine Invertebrates," 

 with Harilaos Lessios from December 1, 1997 to February 

 28, 1998. 



Gerald Urquhart, Visiting Scientist, Universiry of Michigan. 

 "The Quarernary Environmental History of Nicaragua: 

 Reconnaissance Phase," with Paul Colinvaux from October 

 1, 1997 to September 30, 1998. 



Karen Warkentin, Short-Term Fellow, University of Texas. 

 "Phenotypic Plasticity in Hatching of Amphibian 



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