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Covering sex allocation, sex determination and operational sex ratios, this multi-author volume provides both a conceptual context and an instruction in methods for many aspects of sex ratio research. Theory, statistical analysis and genetics are each explained and discussed in the first three sections. The remaining chapters each focus on research in one of a wide spectrum of animal, plant and microbial taxa, including sex ratio distorting bacteria in invertebrates, malarial parasites, birds, human and other mammals, giving critical appraisals of such research. Sex Ratios: Concepts and Research Methods is primarily intended for graduate and professional behavioural and evolutionary ecologists in this field, but it will also be useful to biologists building evolutionary models, and researchers analysing data involving proportions or comparisons across phylogenetically related species.

Sex ratio. --- Sex determination, Genetic. --- Ratio, Sex --- Ratios, Sex --- Sex ratios --- Sex (Biology) --- Chromosomal sex determination --- Determination of sex, Genetic --- Genetic determination of sex --- Genotypic sex determination --- Sex --- Sex determination, Genetic --- Gene expression --- Sex chromosomes --- Sex determination --- Cause and determination

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Sociology of the family. Sociology of sexuality --- #SBIB:316.346H20 --- #SBIB:316.356.2H2610 --- #SBIB:316.356.2H2630 --- Sex customs --- Sex ratio --- Women --- Sex role --- Feminism --- Ratio, Sex --- Ratios, Sex --- Sex ratios --- Sex (Biology) --- Positie van de vrouw in de samenleving: algemeen --- Rol en positie van de moeder --- Rol en positie van de vrouw/echtgenote --- History. --- Social aspects --- Social conditions. --- History --- Social aspects&delete& --- Social conditions

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"Since the 18th century, one phenomenon, the proportion of the sexes at birth among human beings, has contributed to various developments such as the calculus of probabilities, administrative statistics, the moral and social sciences, the statistics of variability, post-Darwinian biology and Durkheimian sociology. This fact is brought to the critical attention of readers who rarely work together -- mathematicians, biologists, historians, social scientists and historians of the sciences -- along a three centuries European journey, meeting Süssmilch, Condorcet, Laplace, Fourier, Girou de Buzareingues, Poisson, Quetelet, Darwin, Düsing, Gini, Halbwachs or Fisher." "After a deconstruction of the past and present conditions of scientific understanding of human sex-ratio at birth, the authors are proposing a reconstruction of the dynamics of the phenomenon based on stochastics. This is an attempt in renewing our links with the oldest traditions of scholarly thinking, but too a kind of "well-tempered" reflexivity in today’s work of objectivization." "Appendixes get to the reader the first expression of a trend of the sex ratio at birth to adjust towards balance between the sexes by Condorcet in 1793-1794 ; a comparison of passages that Darwin devoted in 1871 and 1874 to similar issues ; and a sociological attempt of Halbwachs published in 1933.".

Sex ratio --- Demography. --- Research --- History. --- Mathematical models. --- Historical demography --- Social sciences --- Population --- Vital statistics --- Ratio, Sex --- Ratios, Sex --- Sex ratios --- Sex (Biology) --- Social sciences. --- Developmental psychology. --- Distribution (Probability theory. --- Social Sciences, general. --- Sociology, general. --- Gender Studies. --- History of Science. --- Probability Theory and Stochastic Processes. --- Methodology of the Social Sciences. --- Methodology. --- Distribution functions --- Frequency distribution --- Characteristic functions --- Probabilities --- Annals --- Auxiliary sciences of history --- Development (Psychology) --- Developmental psychobiology --- Psychology --- Life cycle, Human --- Behavioral sciences --- Human sciences --- Sciences, Social --- Social science --- Social studies --- Civilization --- Sociology. --- Sex (Psychology). --- Gender expression. --- Probabilities. --- Expression, Gender --- Sex (Psychology) --- Sex role --- Social theory --- Probability --- Statistical inference --- Combinations --- Mathematics --- Chance --- Least squares --- Mathematical statistics --- Risk --- Psychology, Sexual --- Sex --- Sexual behavior, Psychology of --- Sexual psychology --- Sensuality --- Psychological aspects