Changes in the Vegetation of the Galápagos Islands During El Niño 1982-83 / Luong Tan Tuoc & Basilio Toro (pp. 10-11) -- Evaluation of Plants with Potential Economic Value / Basilio Toro (pp. 11-13) -- Introduced Plants: Problems and Possible Control and Eradication Methods / Luong Tan Tuoc (pp. 13-14) -- A preliminary study of the use of herbicides to eradicate Cinchona succirubra on Santa Cruz Island, Galápagos / Luong Tan Tuoc & Elizabeth Potts (pp. 15-16) -- Distribution of Guayaba (Psidium guajava) and Application of Herbicides for its Control on Santa Cruz Island / Manuel Utreras (pp. 16-17) -- A Study of Self-Compatibility and Pollination Agents of Representative Galápagos Islands Angiosperms / Corley K. McMullen (pp. 17-19) -- The Influence of Xylocopa darwini on Floral Evolution in Galápagos / Mitch Aide (pp. 19-21) -- Studies of the Little Fire Ant, Wasmannia auropunctata, in a Niño Year / Yael D. Lubin (pp. 22-24) -- Feeding Behavior and Competition Between Wasmannia auropunctata and Native Ants / Inés de la Vega (pp. 24-25) -- Coexisting Patterns and Foraging Behavior of Ants Within the Arid Zone of Three Galápagos Islands / Rolf E. Meier (pp. 25-27) -- Herpetology Program of the CDRS / Cruz Márquez (pp. 28-29) -- Tortoise-Plant Interactions in the Galápagos Islands / Linda J. Cayot (pp. 29-30) -- Conservation of the Dark-Rumped Petrel / Felipe Cruz & Justine Cruz (pp. 31-32) -- Census of Cormorants and Penguins Around Fernandina and Isabela / Carlos Valle (pp. 32-34) -- Natural History, Movements,and Migrations of the Great Frigatebird (Fregata minor) in Galápagos / Carlos Valle (pp. 34-36) -- Feeding Activity and Fluctuation of Population Numbers of Shorebirds in Quinta Playa, Isabela / Ana C. Sosa (pp. 36-37) -- Study of the Breeding Behavior of the Waved Albatross / Catherine Rechten (pp. 37-38) -- Research on Galápagos Mockingbirds During El Niño, 1983 / Robert L. Curry (pp. 38-40) -- Introduced Mammals Program / Luis Calvopiña (pp. 41-42) -- Extermination of Feral Dogs on Southern Isabela and Santa Cruz / Luis Calvopiña (pp. 43-44) -- Ecological and Population Study and Management Alternatives of Feral Cattle (Bos taurus) in Southern Isabela, Galápagos / Ruperto H. Pinos (pp. 44-45) -- Preliminary Findings of the Feral Pig Project on Santiago Island / Daniel W. Baber, Michael C. Hansen & Bruce E. Coblentz (pp. 45-47) -- Impact of Domestic Dog Populations in Galápagos: Distribution and Transmission of Canine Heartworm (Dirofilaria immitis) / Bruce D. Barnett (pp. 47-49) -- Control of Dog Populations in Galápagos: Field Test of Chemical Vasectomization as a Means of Controling Reproduction in Domestic Dogs / Bruce D. Barnett (pp. 49-50) -- Marine ecology: Report of Activities October 1982 - August 1983 / Gary Robinson (pp. 51-54) -- Studies on the Exploitation of Black Coral in the Galápagos Islands, Ecuador / Priscila Martínez & Gary Robinson (pp. 54-55) -- Population Structure of the Sally Lightfoot Crab, Grapsus grapsus L., and Human Impact on This Species / Edith Herrera (pp. 55-56) -- Population Dynamics and Social Organization of Marine Iguanas on Galapagos Progress Report No. 3: September 1983 / Andrew Laurie (pp. 56-58) -- Thermoregulatory Behavior of the Galápagos Fur Seal / Dominique Limberger, Fritz Trillmich & Thomas Dellinger (pp. 58-59) -- Environmental Education on Santa Cruz / Gládys Trávez (pp. 60-61) -- Summary of Meteorological Readings, Academy Bay, Santa Cruz / Marco A. Robalino (pp. 62-70) -- Visitors and Events at the Station During 1983 / Charles Darwin Research Station (pp. 71-79).

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