In the introduction to this volume Southwood establishes a framework for considering the evolution, nature, and mechanisms of the insect-plant relationship. Rothschild in "Secondary plant substances and warningcolouration in ...

In a Nigerian rain forest, occupation of Barteria fistulosa saplings by Pachysima aethiops ants results in the plants having more leaves, more branches, more leaves per branch, and less damage to the shoot tips than do ...

A Bombus pullatus nest 5.5 m above the ground in the foliage of a banana plant was collected at 1,400 m elevation near San Vito de Java, Costa Rica. Containing 36 presumably virgin queens, 259 workers, and 48 males, the ...

Neotropical arctiine moths (Erebidae) are generally brilliantly colored and therefore believed to be aposematic, in light of the of the frequent occurrence of glands that produce unpleasant chemicals as a defense mechanism ...

The study of social insects is inherently a problem in population biology and Brian's short book is the first broad spectrum review which adopts thi philosophy. He discusses the literature on ants, termites, and ...

Five large branches of a Cassia grandis tree were deflowered in its flowering year; the consequence was that 10-20 percent of the floweringfruiting capacity of the tree's crown was offset by one year from the tree's ...

During the ir spring night ~a.'W n. free-ranging male cecropia moths lived a maximum of 12 days (one of 124 recaptu red moths of 387 relea~d moths). The number of survivors declined precipitiously after day fi ve: five ...

In lowland deciduous forests of Costa Rica, larvae of the bruchid beetle, Caryedes brasiliensis feed solely on the seeds of the leguminous vine, Dioelea megacarpa (Janzen, 1971). Over 95% of the free amino acid nitrogen ...