نتایج جستجو برای: reproductive behaviour

تعداد نتایج: 272606  

Journal: :The Journal of endocrinology 1971
R J Barfield

Female ring doves secrete gonadotrophic hormone in response to courtship behaviour of the male. This investigation was concerned with the quantitative relationship between the courtship stimulation presented to females and the responses of their reproductive systems. In a first experiment the degree of female reproductive tract development was found to be correlated with the length of time of d...

Journal: :Animal behaviour 1999
Baker Abbott Saltzman

Postpubertal male common marmosets, Callithrix jacchus, engage in little or no sexual behaviour while living with their natal families. The social mechanisms underlying this phenomenon have not been identified but have been assumed to include reproductive suppression by dominant males and/or avoidance of mating with closely related females. We evaluated these two possible components of male rep...

2015
Anjana Verma Jitendra Kumar Meena Bratati Banerjee

Background. In developing countries, women are at high risk for several reproductive health problems especially RTI/STIs. Since all RTIs/ STIs are preventable and most of them are curable, it is pertinent to study the determinants of the health seeking behaviour. Objectives. To compare the prevalence and treatment seeking behaviour about RTI/STI symptoms among the married women of reproductive ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2006
Charles T Snowdon Toni E Ziegler Nancy J Schultz-Darken Craig F Ferris

We describe the role of social odours in sexual arousal and maintaining pairbonds in biparental and cooperatively breeding primates. Social odours are complex chemical mixtures produced by an organism that can simultaneously provide information about species, kinship, sex, individuality and reproductive state. They are long lasting and have advantages over other modalities. Both sexes are sensi...

Journal: :International Journal for Crime, Justice and Social Democracy 2021

Reproductive coercion is increasingly recognised as a common part of women’s experiences domestic violence. The term refers to behaviour that aims compromise woman’s control over her reproductive choices. It includes coercing woman become pregnant or terminate pregnancy and sabotaging contraception. There no Australian research exploring how violence support legal services understand respond wh...

Journal: :Ecology letters 2012
Corey E Tarwater Steven R Beissinger

We examined how interactions between an individual's phenotype and its environment affect natal dispersal at multiple scales and the effects on lifetime reproductive success using a 22-year study of green-rumped parrotlets (Forpus passerinus). Dispersal increased or decreased lifetime reproductive success depending upon an individual's natal environment and phenotype. Many of the phenotypic tra...

2006
Francis Obare Alfred Agwanda Monica Magadi

In this paper, we use data from three districts of Nyanza Province in Kenya to examine gender-role attitudes and reproductive health communication among adolescent females aged 12-19 years. We test for differences in gender-role attitudes between younger (12-15) and older (16-19) adolescents. We explore the possible association between educational attainment and gender-role attitudes by estimat...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2007
Amin A Muhammad Gadit

1. Pachauri S. Unmet reproductive and sexual health needs in South Asia. J Health Popul Dev Ctries 1998; 1:29-39. 2. Singh S. Adolescent childbearing in developing countries: a global review. Stud Fam Plann 1998; 29: 117-36. 3. Jeejeebhoy SJ. Adolescent sexual and reproductive behaviour. International Centre for Research on Women Working Paper 3; Washington DC: 1996. 4. Shaikh BT, Rahim ST. Ass...

2003
JENNIFER J. KINGSTON GIL G. ROSENTHAL MICHAEL J. RYAN

The forces responsible for maintaining genetic polymorphisms within populations are often unclear. Male pygmy swordtails are polymorphic at a single Y-linked locus that regulates body colour. The visually conspicuous, sex-limited polymorphism suggests that sexual selection is important for maintaining genetic variation for these conspicuous phenotypes. We performed a series of behavioural exper...

2015
Randal S. Olson Patrick B. Haley Fred C. Dyer Christoph Adami

Even though grouping behaviour has been actively studied for over a century, the relative importance of the numerous proposed fitness benefits of grouping remain unclear. We use a digital model of evolving prey under simulated predation to directly explore the evolution of gregarious foraging behaviour according to one such benefit, the 'many eyes' hypothesis. According to this hypothesis, coll...

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