Size-sex and sex-age structure in populations of Far-Eastern flounders (Pleuronectidae)
Известия ТИНРО, 2014 Cited and archive data on sex ratio and its changes with age are generalized for 28 species of flounders from the Far-Eastern Seas of Russia belonged to the family Pleuronectidae.
Yury P. Diakov
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EVOLUTION OF SEX RATIO IN STRUCTURED DEMES [PDF]
Evolution, 1981 In 1930 R. A. Fisher proposed an evolutionary model to explain why so many species produce roughly equal numbers of male and female offspring at birth. Very simply, since each offspring has a male and female parent (or grandparent, for haplodiploids), whichever sex is in short supply has the greater fecundity.
David Sloan, Wilson, Robert K, Colwell
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Age Structure and Sex Ratio of Thrips Scirtothrips Dorsalis Hood (Thysanoptera : Thripidae) Associate with Mango Agroecosystem in East Java, Indonesia [PDF]
, 2013 A research aimed to investigate the age structure and sex ratio of S. dorsalis Hood in mango agroecosystem was conducted at PT. Trigatra Rajasa farm, Situbondo, East Java, Indonesia. The research was started from April to May 2013.
Affandi, A. (Affandi) +1 more
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Speaker-sex discrimination for voiced and whispered vowels at short durations [PDF]
, 2016 Whispered vowels, produced with no vocal fold vibration, lack the periodic temporal fine structure which in voiced vowels underlies the perceptual attribute of pitch (a salient auditory cue to speaker sex).
Smith, David R.R.
core +1 more source
Sex-structured wild and sterile mosquito population models with different release strategies
Mathematical Biosciences and Engineering, 2019 In this paper, we propose sex-structured mathematical models in terms of continuous-time differential equations. We investigate the interactive dynamics of the sex-structured wild and sterile mosquitoes from several aspects including the existence of ...
Shuyang Xue +3 more
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Bifurcation analysis of a predator-prey system with sex-structure and sexual favoritism
Advances in Differential Equations, 2013 In this paper, a predator-prey system with sex-structure and sexual favoritism is considered. Firstly, the impact of the sexual favoritism coefficient on the stability of the ordinary differential equation (ODE) model is studied.
Shun-yi Li, Zuoliang Xiong
semanticscholar +1 more source
Известия ТИНРО, 2014 Demographic processes within the groups of sea otter on Commander Islands (Bering and Medny Islands) are described for the period from the beginning of its recovery on Bering Island in the late 1970s.
Sergej V. Zagrebelniy
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Ancestral Genomes, Sex, and the Population Structure of Trypanosoma cruzi. [PDF]
PLoS Pathogens, 2006 Acquisition of detailed knowledge of the structure and evolution of Trypanosoma cruzi populations is essential for control of Chagas disease. We profiled 75 strains of the parasite with five nuclear microsatellite loci, 24Salpha RNA genes, and sequence ...
Jorge M de Freitas +11 more
doaj +2 more sources
An age- and sex-structured SIR model: Theory and an explicit-implicit numerical solution algorithm
Mathematical Biosciences and Engineering, 2020 Since age and sex play an important role in transmission of diseases, we propose a SIR (susceptible-infectious-recovered) model for short-term predictions where the population is divided into subgroups based on both factors without taking into account ...
Benjamin Wacker, Jan Schlüter
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Are sex differences in human brain structure associated with sex differences in behaviour? [PDF]
Psychological Science, 2021 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.
Liza van Eijk +10 more
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