Operational sex ratios and behavioural sex differences in a pipefish population

1994 ◽  
Vol 34 (6) ◽  
pp. 142-435 ◽  
Author(s):  
Amanda Vincent ◽  
Ingrid Ahnesj� ◽  
Anders Berglund
Keyword(s):  
Sex Differences ◽  
Sex Ratios ◽  
Operational Sex Ratios ◽  
Behavioural Sex Differences

Operational sex ratios and behavioural sex differences in a pipefish population

1994 ◽  
Vol 34 (6) ◽  
pp. 435-442 ◽  
Author(s):  
Amanda Vincent ◽  
Ingrid Ahnesj� ◽  
Anders Berglund
Keyword(s):  
Sex Differences ◽  
Sex Ratios ◽  
Operational Sex Ratios ◽  
Behavioural Sex Differences

A systematic review and meta‐analysis of behavioural sex differences in executive control

2020 ◽  
Author(s):  
Alexandra Gaillard ◽  
Daniel J. Fehring ◽  
Susan L. Rossell
Keyword(s):  
Systematic Review ◽  
Sex Differences ◽  
Executive Control ◽  
Meta Analysis ◽  
Behavioural Sex Differences

scholarly journals The Perception of Operational Sex Ratios by Voice

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
John G. Neuhoff
Keyword(s):  
Sex Ratios ◽  
Operational Sex Ratios

Changing sex differences in undernutrition of African children: findings from Demographic and Health Surveys

2021 ◽  
pp. 1-11
Author(s):  
Michel Garenne ◽  
Susan Thurstans ◽  
André Briend ◽  
Carmel Dolan ◽  
Tanya Khara ◽  
...  
Keyword(s):  
Sex Differences ◽  
Health Surveys ◽  
Sex Ratios ◽  
Sub Saharan Africa ◽  
Demographic And Health Surveys ◽  
Growth Charts ◽  
Sub Saharan ◽  
Male To Female ◽  
Height For Age ◽  
Weight For Age

Abstract The study investigates sex differences in the prevalence of undernutrition in sub-Saharan Africa. Undernutrition was defined by Z-scores using the CDC-2000 growth charts. Some 128 Demographic and Health Surveys (DHS) were analysed, totalling 700,114 children under-five. The results revealed a higher susceptibility of boys to undernutrition. Male-to-female ratios of prevalence averaged 1.18 for stunting (height-for-age Z-score <−2.0); 1.01 for wasting (weight-for-height Z-score <−2.0); 1.05 for underweight (weight-for-age Z-score <−2.0); and 1.29 for concurrent wasting and stunting (weight-for-height and height-for-age Z-scores <−2.0). Sex ratios of prevalence varied with age for stunting and concurrent wasting and stunting, with higher values for children age 0–23 months and lower values for children age 24–59 months. Sex ratios of prevalence tended to increase with declining level of mortality for stunting, underweight and concurrent wasting and stunting, but remained stable for wasting. Comparisons were made with other anthropometric reference sets (NCHS-1977 and WHO-2006), and the results were found to differ somewhat from those obtained with CDC-2000. Possible rationales for these patterns are discussed.

scholarly journals Are sex differences in human brain structure associated with sex differences in behaviour?

2021 ◽  
Author(s):  
Liza van Eijk ◽  
Dajiang Zhu ◽  
Baptiste Couvy-Duchesne ◽  
Lachlan T Strike ◽  
Anthony J Lee ◽  
...  
Keyword(s):  
Sex Differences ◽  
Brain Structure ◽  
Brain Size ◽  
Imaging Study ◽  
Data Driven ◽  
Cultural Norms ◽  
Weak Association ◽  
Human Connectome Project ◽  
Using Data ◽  
Behavioural Sex Differences

On average, men and women differ in brain structure and behaviour, raising the possibility of a link between sex differences in brain and behaviour. But women and men are also subject to different societal and cultural norms. We navigated this challenge by investigating variability of sex-differentiated brain structure within each sex. Using data from the Queensland Twin IMaging study (N=1,040) and Human Connectome Project (N=1,113), we obtained data-driven measures of individual differences along a male-female dimension for brain and behaviour based on average sex differences in brain structure and behaviour, respectively. We found a weak association between these brain and behavioural differences, driven by brain size. These brain and behavioural differences were moderately heritable. Our findings suggest that behavioural sex differences are to some extent related to sex differences in brain structure, but that this is mainly driven by differences in brain size, and causality should be interpreted cautiously.

scholarly journals Sex differences in age-to-maturation relate to sexual selection and adult sex ratios in birds

2020 ◽  
Vol 4 (1) ◽  
pp. 44-53
Author(s):  
Sergio Ancona ◽  
András Liker ◽  
M. Cristina Carmona-Isunza ◽  
Tamás Székely
Keyword(s):  
Sex Differences ◽  
Sexual Selection ◽  
Sex Ratios

The development of behavioural sex differences in infant rhesus macaques (Macaca mulatta)

Primates ◽  
2000 ◽  
Vol 41 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Gillian R. Brown ◽  
Alan F. Dixson
Keyword(s):  
Sex Differences ◽  
Macaca Mulatta ◽  
Rhesus Macaques ◽  
Behavioural Sex Differences ◽  
Infant Rhesus

Divergence of responses to variable socio‐sexual environments in laboratory populations of Drosophila melanogaster evolving under altered operational sex ratios

Evolution ◽  
2020 ◽  
Author(s):  
Komal Maggu ◽  
Neetika Ahlawat ◽  
Manas Geeta Arun ◽  
Abhishek Meena ◽  
Nagaraj Guru Prasad
Keyword(s):  
Drosophila Melanogaster ◽  
Sex Ratios ◽  
Laboratory Populations ◽  
Operational Sex Ratios

Role of GABAA receptors in the organization of brain and behavioural sex differences

Neuroreport ◽  
1996 ◽  
Vol 7 (15) ◽  
pp. 2553-2558 ◽  
Author(s):  
Santiago Segovia ◽  
M. Cruz R. del Cerro ◽  
Esperanza Ortega ◽  
Carmen Pérez-Laso ◽  
Monica Rodriguez-Zafra ◽  
...  
Keyword(s):  
Sex Differences ◽  
Gabaa Receptors ◽  
Behavioural Sex Differences
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