A comparison of herbivory and ant species in Acacia collensii  found in edge and light gap of secondary forest. A Comparison of Atta Cephalotes activity on the edge and interior of the LA SELVA rainforest. Arthropod abundance and diversity in relation to primary and early successional habitats A comparison of the abundanceof selected medicinal plants in primary forest, secondary forest and pasture/roadside at Palo Verde National Park Comparative Distribution of the Naked Indian Tree, Bursera simaruba, in Primary Highland, Primary Lowland, and Secondary Lowland Dry Forest at Palo Verde National Park Fruit Dispersal of Castilla elastica in  secondary forest and a developed area of the La Selva Biological Preserve, Costa Rica