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Fieldiana
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Technical Bulletin
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Sex and Evolution. (MPB-8), Volume 8
This book explores the relationship between various types of reproduction and the evolutionary process. Starting with the concept of meiosis, George C. Williams states the conditions under which an organism with both sexual and asexual reproductive capacities will employ each mode. He argues that in low-fecundity higher organisms, sexual reproduction is generally maladaptive, and persists because there is no ready means of developing an asexual alternative. The book then considers the evolutionary development of diverse forms of sexuality, such as anisogamy, hermaphroditism. and the evolution of differences between males and females in reproductive strategy. The final two chapters examine the effect of genetic recombination on the evolutionary process itself.
Biological Control by Natural Enemies
A concise account examining the historical background of biological control.
Revision of the New World Enicocephalomorpha (Heteroptera)
"The taxonomy of the New World Encicocephalidae is treated in detail at the generic and specific level with the exception of Systelloderes Blanchard, for which only the genus is diagnosed. The tribe Systelloderini is resurrected to contain the genus Systelloderes within the Encicocephalinae. The new genera Chiricocoris, Lysenicocephalus, Neoncylocotis, Urnacephala, and Xenicocephalus are described. Thirty-eight new species are described in 9 genera. Enicocephalus marimutti Kritsky and E. yvonneae Kritsky are treated as junior synonyms of E. cubanus Barber; E. emarginatus Champion is treated as a junior synonym of E. pilosus Champion; Oncylocotis braziliensis Kritsky is treated as a junior sy...
Zoological Series
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