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- views: 2771260
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Narrated by: Emily Elert
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References
Cameron, E.Z. (2004). Facultative adjustment of mammalian sex ratios in support of the Trivers-Willard hypothesis: evidence for a mechanism. Proceedings of the Royal Society of London Series B 271:1723–1728. http://rspb.royalsocietypublishing.org/content/271/1549/1723
Chahnazarian, A. (1988). Determinants of the sex ratio at birth: Review of recent literature. Social Biology 35 (3–4): 214–235. http://www.tandfonline.com/doi/abs/10.1080/19485565.1988.9988703?journalCode=hsbi20#.U-5oSPldWRM
Coale, A.J. (1991). Excess female mortality and the balance of the sexes in the population: An estimate of the number of "missing females." Population and Development Review 17(3): 517-523.http://www.jstor.org/discover/10.2307/1971953?uid=3739824&uid;=2&uid;=4&uid;=3739256&sid;=21104121507601
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. http://www.kora.ch/malme/05_library/5_1_publications/C/Clutton-Brock_et_al_1986_Dominance_breeding_success_and_offspring_sex_ratios_in_red_deer.pdf
Kalben B. (2000). Why men die younger: causes of mortality differences by sex. North American Actuarial Journal 4(4): 83–111. https://www.soa.org/news-and-publications/publications/other-publications/monographs/m-li01-1-toc.aspx
Schnettler, S. (2013). Revisiting a Sample of U.S. Billionaires: How Sample Selection and Timing of Maternal Condition Influence Findings on the Trivers-Willard Effect. PLoS ONE 8(2): e57446. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0057446
Song, S. (2012). Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward Famine in China. Proceedings of the Royal Society B 279(1739):2883-2890. http://rspb.royalsocietypublishing.org/content/early/2012/03/16/rspb.2012.0320.full
Thogerson C.M., Brady, C.M., Howard, R.D., Mason, G.J., Pajor, E.A., Vicino, G.A., and Garner, J.P. (2013) Winning the genetic lottery: biasing birth sex ratio results in more grandchildren. PLoS One 8(7):e67867. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0067867
Trivers, R.L., and Willard, D.E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. http://www.sciencemag.org/content/179/4068/90.abstract
Photo credits:
Elephant Seal 1
Photo by: Roy Mangersnes
http://roywildphoto.blogspot.com/2008/11/elephant-seals.html
Elephant Seal 2
Photo by: Mike Baird
https://www.flickr.com/photos/mikebaird/11830159673/
White tailed deer
Photo by: Public Domain
http://en.wikipedia.org/wiki/File:White-tailed_deer.jpg
Key Deer
Photo by: IanarÈ SÈvi
http://commons.wikimedia.org/wiki/File:Odocoileus_virginianus_clavium_fawn.jpg
Male Lion
Photo by: Wikimedia user Robek
http://commons.wikimedia.org/wiki/File:Pair_of_lions_v2.jpg
Baby Lion
Photo by: Flickr user fortherock
https://www.flickr.com/photos/fortherock/3897872187/
Brad Pitt
Photo by: Foreign and Commonwealth Office
http://www.flickr.com/photos/foreignoffice/14217374639/
Kids
Photo by: Barbara Hobbs
http://commons.wikimedia.org/wiki/File:Upclose_of_kids_-_Alberti_Flea_Circus,_MerleFest_2013.jpg
by Isabel Madley (Vassar College, spring 2012)
---------------Literature Cited--------------
Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471.
Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21): 11723-11728.
Fisher, Ronald Aylmer (1958). The genetical theory of natural selection. New York: Dover.
Griffin, A. S., Sheldon, B. C., and West, S. A. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. The American Naturalist 166(5): 628-632.
Hamilton, W. D. (1967). Extraordinary sex ratios. Science 156(3774): 477-488.
Klinkhamer, P. G., & Jong, T. d. (2002). Sex allocation in hermaphrodite plants. Sex ratios: concepts and research methods (pp. 333-348). Cambridge, U.K.: Cambridge University Press.
Martin, J. G. A. and Festa-Bianchet, M. (2011). Sex ratio bias and reproductive strategies: What sex to produce when? Ecology 92(2): 441-449.
Mocarelli, P. ... and Needham, L. L. (2000). Paternal concentrations of dioxin and sex ratio of offspring. The Lancet 355 (9218): 1858-1863.
Spotila, J. R., Standora, E. A., Morreale, S. J., and Ruiz, G. J. (1987). Temperature dependent sex determination in the green turtle (Chelonia mydas): Effects on the sex ratio on a natural nesting beach. Herpetologica 43(1): 74-81.
Trivers, R. L. and Willard, D. E. (1973). Natural selection of parental ability to vary the
sex ratio of offspring. Science 179: 90-92.
Werren, J. H. (1980). Sex ratio adaptations to local mate competition in a parasitic wasp.
Science 208(4448): 1157-1159.
West, S. A. (2009). Sex allocation. Princeton: Princeton University Press.
- published: 10 May 2012
- views: 5669
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio has fallen further from the already alarming 927 girls for every 1000 boys ten years ago.
- published: 08 May 2013
- views: 19637
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio
- published: 11 Nov 2013
- views: 9588
Special report on - 'Beti Bachao movement'
Bitter truth of sex ratio in Haryana.
- published: 18 Jan 2015
- views: 3741
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure?
For downloads and more information visit:
http://www.journeyman.tv/18984/short-films/one-child-policy.html
China's controversial one child policy has stemmed population growth but at what cost? From forced abortions to heavy fines, many have suffered.
"If people tried to have a second child and didn't have any money, they'd have their house pulled down," complains Liu Shuling. She attracted the wrath of local officials and was heavily fined when she became pregnant a second time. "It was very hard," she recalls. "Fortunately, we didn't starve to death." For the past twenty-five years, controlling population growth has been a major priority for the Chinese government. "Unless there is a containment of population, there will be no economic growth, no social stability or social harmony," explains official Siri Tellier. But there's real concern that this policy has created a generation of spoilt children. "They are very delicate. They can't cope with setbacks," states teacher Sun Kaiyun. Demographic growth may have been stemmed but new population problems have been created. The preference for boys has led to millions of female foetuses being aborted. Now, tens of millions of Chinese men face a future with no prospect of a female partner. And that could create the social unrest the one child policy was supposed to avoid.
Produced by ABC Australia. Ref - 2777
Journeyman Pictures is your independent source for the world's most powerful films, exploring the burning issues of today. We represent stories from the world's top producers, with brand new content coming in all the time. On our channel you'll find outstanding and controversial journalism covering any global subject you can imagine wanting to know about.
- published: 23 Nov 2007
- views: 279246
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on September 29, 2011. For additional information information. please follow the link below.
http://www.ii.umich.edu/vgn-ext-templating/v/index.jsp?vgnextoid=af6d869af1a91310VgnVCM100000c2b1d38dRCRD&vgnextchannel;=34d2edf4c4dee210VgnVCM10000055b1d38dRCRD&vgnextfmt;=detail
- published: 25 Jun 2013
- views: 5399
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining child sex ratio in several states has made policy makers sit up and take notice.
-----------------------------------------------------------------------------
‘DD News’ is the News Channel of India's Public Service Broadcaster 'Prasar Bharati'. DD News has been successfully discharging its responsibility to give balanced, fair and accurate news without sensationalizing as well as by carrying different shades of opinion.
Follow DD News on Twitter (English): https://twitter.com/ddnewslive Twitter (Hindi):https://twitter.com/DDNewsHindi Face Book: https://www.facebook.com/DDNews
Visit DD News Website (English): www.ddinews.gov.in
Visit DD News Website (Hindi): http://ddinews.gov.in/Hindi/
- published: 15 May 2016
- views: 99
Sex ratio is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms.
The human sex ratio is of particular interest to anthropologists and demographers. In humans the secondary sex ratio is commonly assumed to be 105 boys to 100 girls (which sometimes is shortened to "a ratio of 105"). In human societies, however, sex ratios at birth may be considerably skewed by factors such as the age of mother at birth, and by sex-selective abortion and infanticide. The CIA estimates that the current world wide sex ratio at birth is 107 boys to 100 girls. In 2010, the global sex ratio was 986 females per 1,000 males and trended to reduce to 984 in 2011.
The theory of sex ratio is a field of study concerned with the accurate prediction of sex ratios in all sexual species, based on a consideration of their natural history. The field continues to be heavily influenced by Eric Charnov's 1982 book, Sex Allocation. He defines five major questions, both for his book and the field in general (slightly abbreviated here):
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Sex_ratio
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
In biology, sexual reproduction is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into a male or female variety, each known as a sex. Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.
An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Sex
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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2:50Why Do We Have More Boys Than Girls?
Why Do We Have More Boys Than Girls?Why Do We Have More Boys Than Girls?
Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1 And support us on Patreon: https://goo.gl/ZVgLQZ ________________________ Created by Henry Reich Production and Writing Team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder Narrated by: Emily Elert ________________________ Free iTunes podcasts of MinuteEarth! - https://goo.gl/sfwS6n Facebook - http://facebook.com/minuteearth Twitter - http://twitter.com/MinuteEarth MinuteEarth provides an energetic and entertaining view of trends in earth's environment -- in just a few minutes! ________________________ References Cameron, E.Z. (2004). Facultative adjustment of mammalian sex ratios in support of the Trivers-Willard hypothesis: evidence for a mechanism. Proceedings of the Royal Society of London Series B 271:1723–1728. http://rspb.royalsocietypublishing.org/content/271/1549/1723 Chahnazarian, A. (1988). Determinants of the sex ratio at birth: Review of recent literature. Social Biology 35 (3–4): 214–235. http://www.tandfonline.com/doi/abs/10.1080/19485565.1988.9988703?journalCode=hsbi20#.U-5oSPldWRM Coale, A.J. (1991). Excess female mortality and the balance of the sexes in the population: An estimate of the number of "missing females." Population and Development Review 17(3): 517-523.http://www.jstor.org/discover/10.2307/1971953?uid=3739824&uid;=2&uid;=4&uid;=3739256&sid;=21104121507601 Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. http://www.kora.ch/malme/05_library/5_1_publications/C/Clutton-Brock_et_al_1986_Dominance_breeding_success_and_offspring_sex_ratios_in_red_deer.pdf Kalben B. (2000). Why men die younger: causes of mortality differences by sex. North American Actuarial Journal 4(4): 83–111. https://www.soa.org/news-and-publications/publications/other-publications/monographs/m-li01-1-toc.aspx Schnettler, S. (2013). Revisiting a Sample of U.S. Billionaires: How Sample Selection and Timing of Maternal Condition Influence Findings on the Trivers-Willard Effect. PLoS ONE 8(2): e57446. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0057446 Song, S. (2012). Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward Famine in China. Proceedings of the Royal Society B 279(1739):2883-2890. http://rspb.royalsocietypublishing.org/content/early/2012/03/16/rspb.2012.0320.full Thogerson C.M., Brady, C.M., Howard, R.D., Mason, G.J., Pajor, E.A., Vicino, G.A., and Garner, J.P. (2013) Winning the genetic lottery: biasing birth sex ratio results in more grandchildren. PLoS One 8(7):e67867. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0067867 Trivers, R.L., and Willard, D.E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. http://www.sciencemag.org/content/179/4068/90.abstract Photo credits: Elephant Seal 1 Photo by: Roy Mangersnes http://roywildphoto.blogspot.com/2008/11/elephant-seals.html Elephant Seal 2 Photo by: Mike Baird https://www.flickr.com/photos/mikebaird/11830159673/ White tailed deer Photo by: Public Domain http://en.wikipedia.org/wiki/File:White-tailed_deer.jpg Key Deer Photo by: IanarÈ SÈvi http://commons.wikimedia.org/wiki/File:Odocoileus_virginianus_clavium_fawn.jpg Male Lion Photo by: Wikimedia user Robek http://commons.wikimedia.org/wiki/File:Pair_of_lions_v2.jpg Baby Lion Photo by: Flickr user fortherock https://www.flickr.com/photos/fortherock/3897872187/ Brad Pitt Photo by: Foreign and Commonwealth Office http://www.flickr.com/photos/foreignoffice/14217374639/ Kids Photo by: Barbara Hobbs http://commons.wikimedia.org/wiki/File:Upclose_of_kids_-_Alberti_Flea_Circus,_MerleFest_2013.jpg -
8:51Sex ratio theory: Fisher's principle & its deviations
Sex ratio theory: Fisher's principle & its deviationsSex ratio theory: Fisher's principle & its deviations
by Isabel Madley (Vassar College, spring 2012) ---------------Literature Cited-------------- Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21): 11723-11728. Fisher, Ronald Aylmer (1958). The genetical theory of natural selection. New York: Dover. Griffin, A. S., Sheldon, B. C., and West, S. A. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. The American Naturalist 166(5): 628-632. Hamilton, W. D. (1967). Extraordinary sex ratios. Science 156(3774): 477-488. Klinkhamer, P. G., & Jong, T. d. (2002). Sex allocation in hermaphrodite plants. Sex ratios: concepts and research methods (pp. 333-348). Cambridge, U.K.: Cambridge University Press. Martin, J. G. A. and Festa-Bianchet, M. (2011). Sex ratio bias and reproductive strategies: What sex to produce when? Ecology 92(2): 441-449. Mocarelli, P. ... and Needham, L. L. (2000). Paternal concentrations of dioxin and sex ratio of offspring. The Lancet 355 (9218): 1858-1863. Spotila, J. R., Standora, E. A., Morreale, S. J., and Ruiz, G. J. (1987). Temperature dependent sex determination in the green turtle (Chelonia mydas): Effects on the sex ratio on a natural nesting beach. Herpetologica 43(1): 74-81. Trivers, R. L. and Willard, D. E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. Werren, J. H. (1980). Sex ratio adaptations to local mate competition in a parasitic wasp. Science 208(4448): 1157-1159. West, S. A. (2009). Sex allocation. Princeton: Princeton University Press. -
3:16India's alarming child sex ratio worries experts
India's alarming child sex ratio worries expertsIndia's alarming child sex ratio worries experts
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio has fallen further from the already alarming 927 girls for every 1000 boys ten years ago. -
5:42Understanding India's Declining Sex Ratio
Understanding India's Declining Sex RatioUnderstanding India's Declining Sex Ratio
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio -
10:55Sex Ratio
Sex RatioSex Ratio
Environmental Science -
0:08sex ratio
sex ratio -
3:27Bitter truth of sex ratio in Haryana
Bitter truth of sex ratio in HaryanaBitter truth of sex ratio in Haryana
Special report on - 'Beti Bachao movement' Bitter truth of sex ratio in Haryana. -
27:51China Denies Sex Ratio Linked To One Child Policy
China Denies Sex Ratio Linked To One Child PolicyChina Denies Sex Ratio Linked To One Child Policy
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure? For downloads and more information visit: http://www.journeyman.tv/18984/short-films/one-child-policy.html China's controversial one child policy has stemmed population growth but at what cost? From forced abortions to heavy fines, many have suffered. "If people tried to have a second child and didn't have any money, they'd have their house pulled down," complains Liu Shuling. She attracted the wrath of local officials and was heavily fined when she became pregnant a second time. "It was very hard," she recalls. "Fortunately, we didn't starve to death." For the past twenty-five years, controlling population growth has been a major priority for the Chinese government. "Unless there is a containment of population, there will be no economic growth, no social stability or social harmony," explains official Siri Tellier. But there's real concern that this policy has created a generation of spoilt children. "They are very delicate. They can't cope with setbacks," states teacher Sun Kaiyun. Demographic growth may have been stemmed but new population problems have been created. The preference for boys has led to millions of female foetuses being aborted. Now, tens of millions of Chinese men face a future with no prospect of a female partner. And that could create the social unrest the one child policy was supposed to avoid. Produced by ABC Australia. Ref - 2777 Journeyman Pictures is your independent source for the world's most powerful films, exploring the burning issues of today. We represent stories from the world's top producers, with brand new content coming in all the time. On our channel you'll find outstanding and controversial journalism covering any global subject you can imagine wanting to know about. -
80:33Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio ImbalanceMara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on September 29, 2011. For additional information information. please follow the link below. http://www.ii.umich.edu/vgn-ext-templating/v/index.jsp?vgnextoid=af6d869af1a91310VgnVCM100000c2b1d38dRCRD&vgnextchannel;=34d2edf4c4dee210VgnVCM10000055b1d38dRCRD&vgnextfmt;=detail -
3:14Declining child sex ratio matter of concern
Declining child sex ratio matter of concernDeclining child sex ratio matter of concern
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining child sex ratio in several states has made policy makers sit up and take notice. ----------------------------------------------------------------------------- ‘DD News’ is the News Channel of India's Public Service Broadcaster 'Prasar Bharati'. DD News has been successfully discharging its responsibility to give balanced, fair and accurate news without sensationalizing as well as by carrying different shades of opinion. Follow DD News on Twitter (English): https://twitter.com/ddnewslive Twitter (Hindi):https://twitter.com/DDNewsHindi Face Book: https://www.facebook.com/DDNews Visit DD News Website (English): www.ddinews.gov.in Visit DD News Website (Hindi): http://ddinews.gov.in/Hindi/
- Ansley J. Coale
- Arthropod
- Bacterium
- Bibcode
- Boy
- Bride kidnapping
- Cannabinaceae
- Cannabis sativa
- Clownfish
- Copepods
- Dichogamy
- Dioecious
- Eric Charnov
- Evolution of sex
- Female
- Fisher's principle
- Girl
- Human sex ratio
- Humulus japonicus
- Male
- Natural history
- Parrotfish
- Peafowl
- Polygonaceae
- Population
- PubMed Identifier
- Ratio
- Robert Trivers
- Rumex acetosa
- Sex allocation
- Sex change
- Sex ratio
- Sex selection
- W. D. Hamilton
- W.D. Hamilton
- Wikipedia Link rot
- Wolbachia
- Wrasses
- Youth bulge
-
Why Do We Have More Boys Than Girls?
Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1 And support us on Patreon: https://goo.gl/ZVgLQZ ________________________ Created by Henry Reich Production and Writing Team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder Narrated by: Emily Elert ________________________ Free iTunes podcasts of MinuteEarth! - https://goo.gl/sfwS6n Facebook - http://facebook.com/minuteearth Twitter - http://twitter.com/MinuteEarth MinuteEarth provides an energetic and entertaining view of trends in earth's environment -- in just a few minutes! ________________________ References Cameron, E.Z. (2004). Facultative adjustment of mammalian sex ratios in support of the ... -
Sex ratio theory: Fisher's principle & its deviations
by Isabel Madley (Vassar College, spring 2012) ---------------Literature Cited-------------- Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21):... -
India's alarming child sex ratio worries experts
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio has fallen further from the already alarming 927 girls for every 1000 boys ten years ago. -
Understanding India's Declining Sex Ratio
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio -
Sex Ratio
Environmental Science -
-
Bitter truth of sex ratio in Haryana
Special report on - 'Beti Bachao movement' Bitter truth of sex ratio in Haryana. -
China Denies Sex Ratio Linked To One Child Policy
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure? For downloads and more information visit: http://www.journeyman.tv/18984/short-films/one-child-policy.html China's controversial one child policy has stemmed population growth but at what cost? From forced abortions to heavy fines, many have suffered. "If people tried to have a second child and didn't have any money, they'd have their house pulled down," complains Liu Shuling. She attracted the wrath of local officials and was heavily fined when she became pregnant a second time. "It was very hard," she recalls. "Fortunately, we didn't starve to death." For the past twenty-five years, controlling population growth has been a major p... -
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on September 29, 2011. For additional information information. please follow the link below. http://www.ii.umich.edu/vgn-ext-templating/v/index.jsp?vgnextoid=af6d869af1a91310VgnVCM100000c2b1d38dRCRD&vgnextchannel;=34d2edf4c4dee210VgnVCM10000055b1d38dRCRD&vgnextfmt;=detail -
Declining child sex ratio matter of concern
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining child sex ratio in several states has made policy makers sit up and take notice. ----------------------------------------------------------------------------- ‘DD News’ is the News Channel of India's Public Service Broadcaster 'Prasar Bharati'. DD News has been successfully discharging its responsibility to give balanced, fair and accurate news without sensationalizing as well as by carrying different shades of opinion. Follow DD News on Twitter (English): https://twitter.com/ddnewslive Twitter (Hindi):https://twitter.com/DDNewsHindi Face Book: https://www.facebook.com/DDNews Visit DD News Website (English): www.ddinews.gov.in Vis...
Why Do We Have More Boys Than Girls?
- Order: Reorder
- Duration: 2:50
- Updated: 04 Sep 2014
- views: 2771260
Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1
And support us on Patreon: https://goo.gl/ZVgLQZ
_______________________...
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And support us on Patreon: https://goo.gl/ZVgLQZ
________________________
Created by Henry Reich
Production and Writing Team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich
Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
Narrated by: Emily Elert
________________________
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MinuteEarth provides an energetic and entertaining view of trends in earth's environment -- in just a few minutes!
________________________
References
Cameron, E.Z. (2004). Facultative adjustment of mammalian sex ratios in support of the Trivers-Willard hypothesis: evidence for a mechanism. Proceedings of the Royal Society of London Series B 271:1723–1728. http://rspb.royalsocietypublishing.org/content/271/1549/1723
Chahnazarian, A. (1988). Determinants of the sex ratio at birth: Review of recent literature. Social Biology 35 (3–4): 214–235. http://www.tandfonline.com/doi/abs/10.1080/19485565.1988.9988703?journalCode=hsbi20#.U-5oSPldWRM
Coale, A.J. (1991). Excess female mortality and the balance of the sexes in the population: An estimate of the number of "missing females." Population and Development Review 17(3): 517-523.http://www.jstor.org/discover/10.2307/1971953?uid=3739824&uid;=2&uid;=4&uid;=3739256&sid;=21104121507601
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. http://www.kora.ch/malme/05_library/5_1_publications/C/Clutton-Brock_et_al_1986_Dominance_breeding_success_and_offspring_sex_ratios_in_red_deer.pdf
Kalben B. (2000). Why men die younger: causes of mortality differences by sex. North American Actuarial Journal 4(4): 83–111. https://www.soa.org/news-and-publications/publications/other-publications/monographs/m-li01-1-toc.aspx
Schnettler, S. (2013). Revisiting a Sample of U.S. Billionaires: How Sample Selection and Timing of Maternal Condition Influence Findings on the Trivers-Willard Effect. PLoS ONE 8(2): e57446. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0057446
Song, S. (2012). Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward Famine in China. Proceedings of the Royal Society B 279(1739):2883-2890. http://rspb.royalsocietypublishing.org/content/early/2012/03/16/rspb.2012.0320.full
Thogerson C.M., Brady, C.M., Howard, R.D., Mason, G.J., Pajor, E.A., Vicino, G.A., and Garner, J.P. (2013) Winning the genetic lottery: biasing birth sex ratio results in more grandchildren. PLoS One 8(7):e67867. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0067867
Trivers, R.L., and Willard, D.E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. http://www.sciencemag.org/content/179/4068/90.abstract
Photo credits:
Elephant Seal 1
Photo by: Roy Mangersnes
http://roywildphoto.blogspot.com/2008/11/elephant-seals.html
Elephant Seal 2
Photo by: Mike Baird
https://www.flickr.com/photos/mikebaird/11830159673/
White tailed deer
Photo by: Public Domain
http://en.wikipedia.org/wiki/File:White-tailed_deer.jpg
Key Deer
Photo by: IanarÈ SÈvi
http://commons.wikimedia.org/wiki/File:Odocoileus_virginianus_clavium_fawn.jpg
Male Lion
Photo by: Wikimedia user Robek
http://commons.wikimedia.org/wiki/File:Pair_of_lions_v2.jpg
Baby Lion
Photo by: Flickr user fortherock
https://www.flickr.com/photos/fortherock/3897872187/
Brad Pitt
Photo by: Foreign and Commonwealth Office
http://www.flickr.com/photos/foreignoffice/14217374639/
Kids
Photo by: Barbara Hobbs
http://commons.wikimedia.org/wiki/File:Upclose_of_kids_-_Alberti_Flea_Circus,_MerleFest_2013.jpg
wn.com/Why Do We Have More Boys Than Girls
Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1
And support us on Patreon: https://goo.gl/ZVgLQZ
________________________
Created by Henry Reich
Production and Writing Team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich
Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
Narrated by: Emily Elert
________________________
Free iTunes podcasts of MinuteEarth! - https://goo.gl/sfwS6n
Facebook - http://facebook.com/minuteearth
Twitter - http://twitter.com/MinuteEarth
MinuteEarth provides an energetic and entertaining view of trends in earth's environment -- in just a few minutes!
________________________
References
Cameron, E.Z. (2004). Facultative adjustment of mammalian sex ratios in support of the Trivers-Willard hypothesis: evidence for a mechanism. Proceedings of the Royal Society of London Series B 271:1723–1728. http://rspb.royalsocietypublishing.org/content/271/1549/1723
Chahnazarian, A. (1988). Determinants of the sex ratio at birth: Review of recent literature. Social Biology 35 (3–4): 214–235. http://www.tandfonline.com/doi/abs/10.1080/19485565.1988.9988703?journalCode=hsbi20#.U-5oSPldWRM
Coale, A.J. (1991). Excess female mortality and the balance of the sexes in the population: An estimate of the number of "missing females." Population and Development Review 17(3): 517-523.http://www.jstor.org/discover/10.2307/1971953?uid=3739824&uid;=2&uid;=4&uid;=3739256&sid;=21104121507601
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. http://www.kora.ch/malme/05_library/5_1_publications/C/Clutton-Brock_et_al_1986_Dominance_breeding_success_and_offspring_sex_ratios_in_red_deer.pdf
Kalben B. (2000). Why men die younger: causes of mortality differences by sex. North American Actuarial Journal 4(4): 83–111. https://www.soa.org/news-and-publications/publications/other-publications/monographs/m-li01-1-toc.aspx
Schnettler, S. (2013). Revisiting a Sample of U.S. Billionaires: How Sample Selection and Timing of Maternal Condition Influence Findings on the Trivers-Willard Effect. PLoS ONE 8(2): e57446. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0057446
Song, S. (2012). Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward Famine in China. Proceedings of the Royal Society B 279(1739):2883-2890. http://rspb.royalsocietypublishing.org/content/early/2012/03/16/rspb.2012.0320.full
Thogerson C.M., Brady, C.M., Howard, R.D., Mason, G.J., Pajor, E.A., Vicino, G.A., and Garner, J.P. (2013) Winning the genetic lottery: biasing birth sex ratio results in more grandchildren. PLoS One 8(7):e67867. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0067867
Trivers, R.L., and Willard, D.E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. http://www.sciencemag.org/content/179/4068/90.abstract
Photo credits:
Elephant Seal 1
Photo by: Roy Mangersnes
http://roywildphoto.blogspot.com/2008/11/elephant-seals.html
Elephant Seal 2
Photo by: Mike Baird
https://www.flickr.com/photos/mikebaird/11830159673/
White tailed deer
Photo by: Public Domain
http://en.wikipedia.org/wiki/File:White-tailed_deer.jpg
Key Deer
Photo by: IanarÈ SÈvi
http://commons.wikimedia.org/wiki/File:Odocoileus_virginianus_clavium_fawn.jpg
Male Lion
Photo by: Wikimedia user Robek
http://commons.wikimedia.org/wiki/File:Pair_of_lions_v2.jpg
Baby Lion
Photo by: Flickr user fortherock
https://www.flickr.com/photos/fortherock/3897872187/
Brad Pitt
Photo by: Foreign and Commonwealth Office
http://www.flickr.com/photos/foreignoffice/14217374639/
Kids
Photo by: Barbara Hobbs
http://commons.wikimedia.org/wiki/File:Upclose_of_kids_-_Alberti_Flea_Circus,_MerleFest_2013.jpg
- published: 04 Sep 2014
- views: 2771260
Sex ratio theory: Fisher's principle & its deviations
- Order: Reorder
- Duration: 8:51
- Updated: 10 May 2012
- views: 5669
by Isabel Madley (Vassar College, spring 2012)
---------------Literature Cited--------------
Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den...
by Isabel Madley (Vassar College, spring 2012)
---------------Literature Cited--------------
Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471.
Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21): 11723-11728.
Fisher, Ronald Aylmer (1958). The genetical theory of natural selection. New York: Dover.
Griffin, A. S., Sheldon, B. C., and West, S. A. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. The American Naturalist 166(5): 628-632.
Hamilton, W. D. (1967). Extraordinary sex ratios. Science 156(3774): 477-488.
Klinkhamer, P. G., & Jong, T. d. (2002). Sex allocation in hermaphrodite plants. Sex ratios: concepts and research methods (pp. 333-348). Cambridge, U.K.: Cambridge University Press.
Martin, J. G. A. and Festa-Bianchet, M. (2011). Sex ratio bias and reproductive strategies: What sex to produce when? Ecology 92(2): 441-449.
Mocarelli, P. ... and Needham, L. L. (2000). Paternal concentrations of dioxin and sex ratio of offspring. The Lancet 355 (9218): 1858-1863.
Spotila, J. R., Standora, E. A., Morreale, S. J., and Ruiz, G. J. (1987). Temperature dependent sex determination in the green turtle (Chelonia mydas): Effects on the sex ratio on a natural nesting beach. Herpetologica 43(1): 74-81.
Trivers, R. L. and Willard, D. E. (1973). Natural selection of parental ability to vary the
sex ratio of offspring. Science 179: 90-92.
Werren, J. H. (1980). Sex ratio adaptations to local mate competition in a parasitic wasp.
Science 208(4448): 1157-1159.
West, S. A. (2009). Sex allocation. Princeton: Princeton University Press.
wn.com/Sex Ratio Theory Fisher's Principle Its Deviations
by Isabel Madley (Vassar College, spring 2012)
---------------Literature Cited--------------
Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133.
Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471.
Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21): 11723-11728.
Fisher, Ronald Aylmer (1958). The genetical theory of natural selection. New York: Dover.
Griffin, A. S., Sheldon, B. C., and West, S. A. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. The American Naturalist 166(5): 628-632.
Hamilton, W. D. (1967). Extraordinary sex ratios. Science 156(3774): 477-488.
Klinkhamer, P. G., & Jong, T. d. (2002). Sex allocation in hermaphrodite plants. Sex ratios: concepts and research methods (pp. 333-348). Cambridge, U.K.: Cambridge University Press.
Martin, J. G. A. and Festa-Bianchet, M. (2011). Sex ratio bias and reproductive strategies: What sex to produce when? Ecology 92(2): 441-449.
Mocarelli, P. ... and Needham, L. L. (2000). Paternal concentrations of dioxin and sex ratio of offspring. The Lancet 355 (9218): 1858-1863.
Spotila, J. R., Standora, E. A., Morreale, S. J., and Ruiz, G. J. (1987). Temperature dependent sex determination in the green turtle (Chelonia mydas): Effects on the sex ratio on a natural nesting beach. Herpetologica 43(1): 74-81.
Trivers, R. L. and Willard, D. E. (1973). Natural selection of parental ability to vary the
sex ratio of offspring. Science 179: 90-92.
Werren, J. H. (1980). Sex ratio adaptations to local mate competition in a parasitic wasp.
Science 208(4448): 1157-1159.
West, S. A. (2009). Sex allocation. Princeton: Princeton University Press.
- published: 10 May 2012
- views: 5669
India's alarming child sex ratio worries experts
- Order: Reorder
- Duration: 3:16
- Updated: 08 May 2013
- views: 19637
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio h...
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio has fallen further from the already alarming 927 girls for every 1000 boys ten years ago.
wn.com/India's Alarming Child Sex Ratio Worries Experts
It is not a girl's world, at least not in India where there are only 919 girls under six for every 1000 boys. The 2011 census figures show the child sex ratio has fallen further from the already alarming 927 girls for every 1000 boys ten years ago.
- published: 08 May 2013
- views: 19637
Understanding India's Declining Sex Ratio
- Order: Reorder
- Duration: 5:42
- Updated: 11 Nov 2013
- views: 9588
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio
wn.com/Understanding India's Declining Sex Ratio
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declining sex ratio
- published: 11 Nov 2013
- views: 9588
sex ratio
- Order: Reorder
- Duration: 0:08
- Updated: 27 Aug 2010
- views: 26160
No description.
This sign video was contributed by users of the ASL-STEM Forum:
http://aslstem.cs.washington.edu/
No description.
This sign video was contributed by users of the ASL-STEM Forum:
http://aslstem.cs.washington.edu/
wn.com/Sex Ratio
Bitter truth of sex ratio in Haryana
- Order: Reorder
- Duration: 3:27
- Updated: 18 Jan 2015
- views: 3741
Special report on - 'Beti Bachao movement'
Bitter truth of sex ratio in Haryana.
- published: 18 Jan 2015
- views: 3741
China Denies Sex Ratio Linked To One Child Policy
- Order: Reorder
- Duration: 27:51
- Updated: 23 Nov 2007
- views: 279246
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure?
Fo...
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure?
For downloads and more information visit:
http://www.journeyman.tv/18984/short-films/one-child-policy.html
China's controversial one child policy has stemmed population growth but at what cost? From forced abortions to heavy fines, many have suffered.
"If people tried to have a second child and didn't have any money, they'd have their house pulled down," complains Liu Shuling. She attracted the wrath of local officials and was heavily fined when she became pregnant a second time. "It was very hard," she recalls. "Fortunately, we didn't starve to death." For the past twenty-five years, controlling population growth has been a major priority for the Chinese government. "Unless there is a containment of population, there will be no economic growth, no social stability or social harmony," explains official Siri Tellier. But there's real concern that this policy has created a generation of spoilt children. "They are very delicate. They can't cope with setbacks," states teacher Sun Kaiyun. Demographic growth may have been stemmed but new population problems have been created. The preference for boys has led to millions of female foetuses being aborted. Now, tens of millions of Chinese men face a future with no prospect of a female partner. And that could create the social unrest the one child policy was supposed to avoid.
Produced by ABC Australia. Ref - 2777
Journeyman Pictures is your independent source for the world's most powerful films, exploring the burning issues of today. We represent stories from the world's top producers, with brand new content coming in all the time. On our channel you'll find outstanding and controversial journalism covering any global subject you can imagine wanting to know about.
wn.com/China Denies Sex Ratio Linked To One Child Policy
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what cost to the future of the country's economy and social structure?
For downloads and more information visit:
http://www.journeyman.tv/18984/short-films/one-child-policy.html
China's controversial one child policy has stemmed population growth but at what cost? From forced abortions to heavy fines, many have suffered.
"If people tried to have a second child and didn't have any money, they'd have their house pulled down," complains Liu Shuling. She attracted the wrath of local officials and was heavily fined when she became pregnant a second time. "It was very hard," she recalls. "Fortunately, we didn't starve to death." For the past twenty-five years, controlling population growth has been a major priority for the Chinese government. "Unless there is a containment of population, there will be no economic growth, no social stability or social harmony," explains official Siri Tellier. But there's real concern that this policy has created a generation of spoilt children. "They are very delicate. They can't cope with setbacks," states teacher Sun Kaiyun. Demographic growth may have been stemmed but new population problems have been created. The preference for boys has led to millions of female foetuses being aborted. Now, tens of millions of Chinese men face a future with no prospect of a female partner. And that could create the social unrest the one child policy was supposed to avoid.
Produced by ABC Australia. Ref - 2777
Journeyman Pictures is your independent source for the world's most powerful films, exploring the burning issues of today. We represent stories from the world's top producers, with brand new content coming in all the time. On our channel you'll find outstanding and controversial journalism covering any global subject you can imagine wanting to know about.
- published: 23 Nov 2007
- views: 279246
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
- Order: Reorder
- Duration: 80:33
- Updated: 25 Jun 2013
- views: 5399
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on...
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on September 29, 2011. For additional information information. please follow the link below.
http://www.ii.umich.edu/vgn-ext-templating/v/index.jsp?vgnextoid=af6d869af1a91310VgnVCM100000c2b1d38dRCRD&vgnextchannel;=34d2edf4c4dee210VgnVCM10000055b1d38dRCRD&vgnextfmt;=detail
wn.com/Mara Hvistendahl Unnatural Selection The Causes And Consequences Of Asia's Sex Ratio Imbalance
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance" on September 29, 2011. For additional information information. please follow the link below.
http://www.ii.umich.edu/vgn-ext-templating/v/index.jsp?vgnextoid=af6d869af1a91310VgnVCM100000c2b1d38dRCRD&vgnextchannel;=34d2edf4c4dee210VgnVCM10000055b1d38dRCRD&vgnextfmt;=detail
- published: 25 Jun 2013
- views: 5399
Declining child sex ratio matter of concern
- Order: Reorder
- Duration: 3:14
- Updated: 15 May 2016
- views: 99
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining chil...
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining child sex ratio in several states has made policy makers sit up and take notice.
-----------------------------------------------------------------------------
‘DD News’ is the News Channel of India's Public Service Broadcaster 'Prasar Bharati'. DD News has been successfully discharging its responsibility to give balanced, fair and accurate news without sensationalizing as well as by carrying different shades of opinion.
Follow DD News on Twitter (English): https://twitter.com/ddnewslive Twitter (Hindi):https://twitter.com/DDNewsHindi Face Book: https://www.facebook.com/DDNews
Visit DD News Website (English): www.ddinews.gov.in
Visit DD News Website (Hindi): http://ddinews.gov.in/Hindi/
wn.com/Declining Child Sex Ratio Matter Of Concern
Gender equality matters for society more broadly and can enhance productivity, improve development outcomes for the next generation. However, the declining child sex ratio in several states has made policy makers sit up and take notice.
-----------------------------------------------------------------------------
‘DD News’ is the News Channel of India's Public Service Broadcaster 'Prasar Bharati'. DD News has been successfully discharging its responsibility to give balanced, fair and accurate news without sensationalizing as well as by carrying different shades of opinion.
Follow DD News on Twitter (English): https://twitter.com/ddnewslive Twitter (Hindi):https://twitter.com/DDNewsHindi Face Book: https://www.facebook.com/DDNews
Visit DD News Website (English): www.ddinews.gov.in
Visit DD News Website (Hindi): http://ddinews.gov.in/Hindi/
- published: 15 May 2016
- views: 99
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2:50
Why Do We Have More Boys Than Girls?
Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1
And...
published: 04 Sep 2014
Why Do We Have More Boys Than Girls?
Why Do We Have More Boys Than Girls?
- Report rights infringement
- published: 04 Sep 2014
- views: 2771260
8:51
Sex ratio theory: Fisher's principle & its deviations
by Isabel Madley (Vassar College, spring 2012)
---------------Literature Cited-----------...
published: 10 May 2012
Sex ratio theory: Fisher's principle & its deviations
Sex ratio theory: Fisher's principle & its deviations
- Report rights infringement
- published: 10 May 2012
- views: 5669
3:16
India's alarming child sex ratio worries experts
It is not a girl's world, at least not in India where there are only 919 girls under six f...
published: 08 May 2013
India's alarming child sex ratio worries experts
India's alarming child sex ratio worries experts
- Report rights infringement
- published: 08 May 2013
- views: 19637
5:42
Understanding India's Declining Sex Ratio
Dr. Mary John, Senior Researcher, Centre for Women's Development Studies on India's declin...
published: 11 Nov 2013
Understanding India's Declining Sex Ratio
Understanding India's Declining Sex Ratio
- Report rights infringement
- published: 11 Nov 2013
- views: 9588
0:08
sex ratio
No description.
This sign video was contributed by users of the ASL-STEM Forum:
http://a...
published: 27 Aug 2010
sex ratio
sex ratio
- Report rights infringement
- published: 27 Aug 2010
- views: 26160
3:27
Bitter truth of sex ratio in Haryana
Special report on - 'Beti Bachao movement'
Bitter truth of sex ratio in Haryana.
published: 18 Jan 2015
Bitter truth of sex ratio in Haryana
Bitter truth of sex ratio in Haryana
- Report rights infringement
- published: 18 Jan 2015
- views: 3741
27:51
China Denies Sex Ratio Linked To One Child Policy
One Child Policy, 2005 - China attempted to reduce the huge population growth, but at what...
published: 23 Nov 2007
China Denies Sex Ratio Linked To One Child Policy
China Denies Sex Ratio Linked To One Child Policy
- Report rights infringement
- published: 23 Nov 2007
- views: 279246
80:33
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
Hosted by the Center for Chinese Studies, Mara Hvistendahl gives her lecture "Unnatural Se...
published: 25 Jun 2013
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
Mara Hvistendahl - Unnatural Selection: The Causes and Consequences of Asia's Sex Ratio Imbalance
- Report rights infringement
- published: 25 Jun 2013
- views: 5399
3:14
Declining child sex ratio matter of concern
Gender equality matters for society more broadly and can enhance productivity, improve dev...
published: 15 May 2016
Declining child sex ratio matter of concern
Declining child sex ratio matter of concern
- Report rights infringement
- published: 15 May 2016
- views: 99
Why Do We Have More Boys Than Girls?...
Sex ratio theory: Fisher's principle & its deviati...
India's alarming child sex ratio worries experts...
Understanding India's Declining Sex Ratio...
Sex Ratio...
sex ratio...
Bitter truth of sex ratio in Haryana...
China Denies Sex Ratio Linked To One Child Policy...
Mara Hvistendahl - Unnatural Selection: The Causes...
Declining child sex ratio matter of concern...
photo: NASA / Bill Ingalls
A famous astronaut says his body still hurts after spending a year in space
Edit Business Insider 08 Jun 2016
Scott Kelly answers questions from NASA employees about his year in space. Three months after returning to Earth, Astronaut Scott Kelly is still feeling the effects of his year in space. Speaking at a NASA event answering questions about his mission, Kelly described how the length of his flights determined how bad he felt after landing ... "This flight was twice as long and I felt twice as bad," he told the crowd. He continued. ... ....
photo: Creative Commons / ProjectManhattan
[VIDEO]: Florida Police Respond To Report Of Body In Gator's Mouth
Edit WorldNews.com 07 Jun 2016
The body of an unidentified person was discovered Tuesday afternoon in the Lake Hunter section of Lakeland, Fla. inside the mouth of an eight-foot alligator, CBS News reported.Lakeland police spokesman Gary Gross told CBS affiliate WTSP officers responded to a call concerning an alligator with a body in its mouth ... Although Gross said police were unsure of the sex of the dead body, it appeared to be an adult male....
photo: UN / Evan Schneider
Hillary Clinton Wins the Democratic Primary in California
Edit ABC News 08 Jun 2016
Hillary Clinton wins Democratic primary in California, delivering a devastating blow to Sanders ... ....
photo:
Who Won The California 2016 Democratic Primary? Bernie Sanders Surging As He Aims For Final ...
Edit Inquisitr 08 Jun 2016
Who won the 2016 California Democratic primary?. As results come in from the Golden State, both Hillary Clinton and Bernie Sanders look to score an important win in the final large race and the nation’s largest state. For Bernie Sanders, the California primary has been the major focus of the past several weeks ... But his plan may have hit a hitch on Monday ... — Keep California Blue (@UniteBlueCA) June 7, 2016 ... ABC Breaking News ....
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Deoband fatwa against female foeticide
Edit Deccan Herald 08 Jun 2016
... which issues edicts, made its stand clear on what Islam/Quran/Hadith had to say about sex-selective abortions. Its response came in the light of queries and media reports on skewed sex ratio among Muslims as the number of girls up to six years old per 1,000 boys in the same age group among Indian Muslims slipped from 950 in 2001 to 943 in 2011....
Darul Uloom Deoband issues fatwa against female foeticide
Edit Deccan Chronicle 08 Jun 2016
Darul Ifta, the department which issues edicts, made its stand clear on what Islam/Quran/Hadith had to say about sex-selective abortions. Its response came in the light of queries and media reports on skewed sex ratio among Muslims as the number of girls up to six years old per 1,000 boys in the same age group among Indian Muslims slipped from 950 in 2001 to 943 in 2011....
Largest Muslim seminary in India issues fatwa against female foeticide
Edit International Business Times 08 Jun 2016
The seminary reportedly took into consideration media reports and individual queries about the low child sex ratio among Muslims ... ....
Keeping Up With the Fast-Moving Science of Gene Drives (North Carolina State University)
Edit Public Technologies 08 Jun 2016
(Source. North Carolina State University). The emerging science of gene drives is drawing attention for its potential to help with critical health issues such as mosquito-borne diseases and environmental concerns such as agricultural pests and invasive species ... You could also use a gene drive to crash an invasive pest population by biasing the sex ratio of offspring to the point where too few females exist to sustain the population....
Gujarat sets out to check if schoolkids deserve their marks
Edit Indian Express 07 Jun 2016
Board exams in Gujarat; the upcoming drive is for students of II to IX. File photo ... “We want to check where students’ understanding levels stand externally ... Senior officials, ministers to be assigned lowest grade schools At Shala Praveshotsav, CM takes a stand against skewed sex ratio ‘Will replicate Gujarat education model elsewhere in the country’ Sabarmati,BRTS may hit school enrollment drivesEnrollment drive soon in urban schools ... ....
Narendra Modi's CEO-like work style is effective, but it needs to be laced with a dose of empathy
Edit The Times of India 05 Jun 2016
The celebrations would have done a mega corporation proud. A day-long televised conference at a glass-fronted venue overlooking Delhi's India Gate. A range of company directors making presentations on their respective departments. The grand finale ... Then, reality hit ... Yet something vital is missing ... Amitabh Bachchan may anchor a Beti Padhao event but sex ratios are falling and crimes against women are rising ... Download it Now! ....
Gender selection caused rise in sex ratio: official
Edit Taipei Times 04 Jun 2016
According to the agency, under natural circumstances, the number of male babies is slightly higher than females, but the sex ratio is about 1.06, meaning that for every 100 female babies, there are 106 males ... However, the sex ratio last year rose to 1.083, a five-year record, the agency said. Director Chiu Shu-ti (邱淑媞) said the increased ratio was evidence of human intervention....
Kaithal girl conquers Mt Everest
Edit The Times of India 02 Jun 2016
CHANDIGARH. In a state known for skewed sex ratio and gender bias, daughter of a labourer from a village in Kaithal district in Haryana has scaled Mount Everest. Seema Goswami (27), who had suffered frost bite as she was left stranded in intense cold weather for a day and night while descending to lower camp after scaling the world's highest peak on May 20, returned to her native village of Siwan on Tuesday ... Suceeded in 2nd attempt....
N Gujarat village felicitates 951 girls
Edit The Times of India 01 Jun 2016
Palanpur ... Each girl was given Rs 100 as a token gift after feast ... President of Mahila Kala Natdhi Trust, Kanodar Rashmi Hada, said the country has been grappling with the problem of skewed sex ratio while girls continued to be looked with discomfort and suspicion vis-a-vis the birth of boys ... RELATED....
It's Raining Men! Sweden Sees Historic Gender Balance Shift
Edit Voa News 31 May 2016
But the number of men per 100 women, known as the sex ratio, is increasing, slowly in Europe as a whole and quickly in some northern and central European countries. Norway swung to a male surplus in 2011, four years before Sweden, while Denmark and Switzerland are nearing a sex ratio of 100. Germany, which had an unnatural deficit of men after two world wars, has seen its sex ratio jump from 87 in 1960 to 96 last year....
Laadlis in peril, exposes state's welfare claim
Edit The Times of India 31 May 2016
Bhopal ... Sex ratio in Madhya Pradesh has declined from 961 (NFHS3) to 948 in the national family health survey (NFHS4) over the last one decade. Neemuch in western MP, bordering Rajasthan, is the worst with abysmally low sex ratio of 837 women per 1000 men ... Minister for women and child welfare Maya Singh said, "It is a cause of concern for us ... The sex ratio in Bihar (1062 females) and Uttarakhand (1015 females) is better ... RELATED....
Himachal Pradesh chief minister launches 'save girl child' campaign in Kangra
Edit The Times of India 30 May 2016
He also added that, ''The parents who indulge in sex determination and resort to abortion would be held liable for harsh punishment.'' Though the sex ratio in the state is quite good, yet there are few districts such as Una, Hamirpur and Kangra, where the sex ratio ......
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