In this book, the biologist Raghavendra Gadagkar focuses on the single species he has worked on throughout his career. Found throughout southern India, Ropalidia marginata is a primitively eusocial wasp--a species in which queens and workers do not differ morphologically and even the latter retain the ability to reproduce. New colonies may be founded by a single fertile female or by several, which then share reproductive and worker duties.
R. marginata has provided Gadagkar with a unique opportunity to study the evolution of eusociality; its long-lived dynasties can continue almost indefinitely, as old or weakened queens are replaced by young and healthy ones and new colonies are founded throughout the year. Understanding such primitively eusocial species is crucial, Gadagkar argues, if we are to understand the evolution of the greater degrees of sociality found in other wasp species and in ants, termites, and bees. His years of study have led him to believe that ecological, physiological, and demographic factors can be more important than genetic relatedness in the selection for or against social traits.
This is a very readable introduction to facts and concepts by a leading authority on social wasps who has a deep understanding of evolutionary principles. Using entertaining anecdotes to illustrate important observations, Gadagkar expertly summarizes the remarkable studies he and his students conducted over a period of more than twenty years. A major accomplishment.
This is a wonderful book about a detailed investigation of a single species of social wasp. Raghavendra Gadagkar and his colleagues have carried out a thorough study of Ropalidia marginata Lepeletier and developed ideas about the origins and maintenance of eusociality, currently topics of great interest...I have read [this book] twice from cover to cover completely captivated by the detailed studies on this social wasp. I have no hesitation in strongly recommending this book.
- 384 pages
- 6-1/8 x 9-1/4 inches
- Harvard University Press
From this author
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