Research Interests:                                        
Ecology and evolutionary biology of tropical amphibians and reptiles; declining amphibians in the Neotropics; restoration of alluvial forest in northeastern Costa Rica

Student Projects:                                                 
Status of a high elevation salamander in Costa Rica; Leaf-litter amphibians and reptiles in Peru; Ecology of Rana grylioin south Florida; Restoration of sea turtle nesting sites on the west coast of Florida. 

Representative Papers:                                  
Climatic Change 39:541-561
American Museum Novitates 3213:1-71             
Am. Mus. Novitates 3172: 1-56 

Research Interests:                         
Phytochemistry , chemical/biochemical ecology of plant/insect and plant/pathogen interactions; environmental photobiology & UV effects on photosynthetic processes 

Student Projects: 

Representative Papers:             
Recent Advances in Phytochemistry,
Vol. 27. Plenum Press, New York, NY, 1993.                                                               
Internat. J.Biometeorol. 35, 48-54.   
Chemoecol. 4, 165-173.
Dorstenia contrajerva. Phytochem. 39, 645-647. 

Research Interests:       
Plant-herbivore interactions and pollination; Extrafloral nectary-mediated interactions between insects and plants.

Student Projects:    
Pollination in pine rockland fragments; 
Population biology of Chamaecrista lineata var. keyensis in the Lower Keys; Mosquito pollination in the Everglades; Restoration of pine rockland in the Lower Keys; Reproductive biology of Amorpha crenulata; Interaction of pollination and herbivory in Centrosema virginiana; Phenology and ecophysiology of trees of the Keys; Pollination and breeding system of Jacquemontia reclinata; Microhabitat variation and reproductive biology of Jacquemontia reclinata 

Representative Papers:             
American Midland Naturalist 140 (2):393-396.  Biotropica 30(2): 179-189. 

Research Interests:
Evolution and adaptation in tropical forest plants, functional ecology; tropical forest ecology, especially India and Southeast Asia; Adaptations to extreme shade; leaf optical properties

Student Projects:                                 
Ecology of aquatic macrophytes in the Everglades 

Representative Papers:                   
Biotropica 19:161-166.
J. Trop.Ecol. 4:281-292.                          
Biotropica 19:40-49. 

Research Interests:
Plant physiological ecology, photosynthesis and cell-water relations of tropical forest and arctic tundra plants, effects of climate change on plants and ecosystems

Student Projects:                                           
Effects of increased season length on plant phenology, community composition, productivity, and ecosystem carbon fluxes in Alaskan tundra: implications for climate warming; Climatic Controls of Tropical Rainforest Productivity; Current and future carbon budgets of tropical rainforest: a cross scale analysis. 

Representative Papers:                              
Global Change Biology 6:357-369.
American Journal of Botany 87:447-455.    
Journal of Tropical Forest Science11:132-147

Research Interests:
Prolonged dormancy in crustacean inhabitants of temporary pools, primarily large Branchiopods in vernal pools in Southern California, rock pockets in Joshua Tree, Canyonlands, Organ Pipe/Agua Prieta, and potentially pools at Archibold and solution holes in the Everglades. 

Student Projects:

Representative Papers: 
Israeli Journal of Zoology 47:387-395

Research Interests:                                            
Ecology of aquatic macrophytes in the Everglades; Evolution of plant mating systems 

Student Projects:                                                  
Effects of hydroperiod on algal mat communities; Nutrient dynamics of bladderworts

Representative Papers:                                   
Richards, J.H. In press. Bladder function in Utricularia purpurea Walter: is carnivory important? American Journal of Botany.