Jeffrey Brawn, Postdoctoral Fellow, Northern Arizona University. 

 "The Influences of Physical Isolation on Geographic 

 Variation within Selected Bird Species on Panama's Pearl 

 Islands," with Harilaos Lessios, from January 1, 1989 to 

 January 1, 1990. 



Laurel Collins, Postdoctoral Fellow, Yale University. "Effects 

 of Environmental Change on the Shallow-Water Benthic 

 Foraminifera of Panama," with Jeremy Jackson, from October 

 1, 1988 to May 30, 1990. 



Timothy Collins, Postdoctoral Fellow, Yale University. "Rates of 

 Molecular Evolution in Marine Gastropods," with Harilaos 

 Lessios, from May 25, 1989 to May 24, 1990. 



Kevin Hogan, Visiting Scientist, University of Illinois. 



"Ecopnysiology of Geographic Ally Wide-Ranging Plant 

 Species," with Alan Smith, from December 1, 1988 to January 

 31, 1990. 



Roberto Ibanez, Predoctoral Fellow, University of Connecticut. 

 "Synchronized Calling in Centronella granulosa and 

 Smlllsca sila (Amphibia, Anura)," with A. Stanley Rand, 

 from September 1, 1989 to December 31, 1990. 



Kenneth Johnson, Predoctoral Fellow, University of Iowa. 



"Testing for Natural Selection on Corals: Patterns of 

 Skeletal Morphology, Fertility, and Genetic Variation in 

 Natural Populations of Manicina Areolata ( Scleractinia ) , " 

 with Nancy Knowlton, from October 1, 1989 to September 30, 

 1990. 



Kaoru Kitajima Okada, Predoctoral Fellow, University of Illinois. 

 "A Community-Wide Study of Tropical Tree Seedlings: the 

 Ecological Consequences of the Structure/Physiology 

 Relationships of Cotyledons," with Alan Smith, from June 1, 

 1989 to May 31, 1990. 



Noris Salazar, Postdoctoral Fellow, University of Alberta. "A 

 Systematic Revision of the Neotropical Species of 

 Octoblepharum , a Pantropical Moss Genus with Ecological and 

 Reproductive Biology Studies of Two Species in Panama," 

 with Alan Smith, from March 1, 1989 to March 1, 1990. 



Ellen Smith, Predoctoral Fellow, University of Washington. "The 

 Evolution of Parental Care: A Multidisciplinary Approach 

 in Some Dendrobatid Frogs," with A. Stanley Rand, from June 

 1, 1989 to May 31, 1990. 



Hugh Sweatman, Visiting Scientist, Macguaire University. "An 



Investigation of Sea Grass Beds as Habitats for Coral Reef 

 Fishes," with Ross Robertson, from November 15, 1988 to 

 September 30, 1990. 



