Parent-Offspring Conflict Over Sex Ratio. II. Offspring Response to Parental Manipulation

Ilan Eshel; Emilia Sansone

doi:10.1086/285645

Parental Manipulation of the Sex Ratio of Offspring: A Historical Note

The American Naturalist ◽

10.1086/283908 ◽

1982 ◽

Vol 119 (2) ◽

pp. 283-284 ◽

Cited By ~ 4

Author(s):

John S. Watson

Keyword(s):

Sex Ratio ◽

Historical Note ◽

Parental Manipulation

Inuit Sex-Ratio Variation: Population Control, Ethnographic Error, or Parental Manipulation? [and Comments and Reply]

Current Anthropology ◽

10.1086/204319 ◽

1994 ◽

Vol 35 (5) ◽

pp. 595-624 ◽

Cited By ~ 28

Author(s):

Eric Alden Smith ◽

S. Abigail Smith ◽

Judith Anderson ◽

Monique Borgerhoff Mulder ◽

Ernest S. Burch ◽

...

Keyword(s):

Sex Ratio ◽

Population Control ◽

Parental Manipulation ◽

Ratio Variation

Sex Ratio and the Timing of Pubertal Maturation in Girls: A Life History Approach

PsycEXTRA Dataset ◽

10.1037/e525792013-003 ◽

2011 ◽

Author(s):

Sarah Feingold

Keyword(s):

Life History ◽

Sex Ratio ◽

Pubertal Maturation ◽

History Approach

Die unbehandelten Kranken: Ältere Männer mit Depression

Nervenheilkunde ◽

10.1055/s-0038-1627120 ◽

2008 ◽

Vol 27 (07) ◽

pp. 617-619 ◽

Cited By ~ 1

Author(s):

M. Wittmann ◽

E. Haen ◽

H. Spießl ◽

H. Hausner

Keyword(s):

Sex Ratio ◽

Epidemiologische Studien

ZusammenfassungZahlreiche epidemiologische Studien zeigen, dass sich das Geschlechterverhältnis der Prävalenz depressiver Erkrankungen ab der 6. Lebensdekade – also nach der weiblichen Menopause – wieder annähert. Wir haben untersucht, ob sich dieser epidemiologische Effekt auch in der stationären Versorgung abbildet. Unter Verwendung der AGATE-Stichtagsdaten der Jahre 2000 bis 2004, wurde der Zusammenhang zwischen Geschlecht und Alter bei stationär behandelten depressiven Patienten analysiert. Der Zusammenhang zwischen Geschlechterverhältnis und dem Alter wurde mithilfe des Korrelationskoeffizienten nach Spearman sowie mit χ2-Test untersucht. In der 5. und 6. Lebensdekade lag die Sex-Ratio F/M bei 1,7:1, sie stieg in der 7. Dekade auf 2,2:1 und in der 8. Dekade auf 2,6:1 an. Anders als aufgrund epidemiologischer Studien zu erwarten wäre, nähert sich in der stationär psychiatrischen Versorgung das Verhältnis depressiver Patienten im Alter nicht an. Depressive ältere Männer sind also im stationären Versorgungssystem unterrepräsentiert.

Reproductive Ecology and Operational Sex Ratio of Worm Pipefish(Nerophis lumbriciformis) in Irish Waters

Biology & Environment Proceedings of the Royal Irish Academy ◽

10.3318/bioe.2005.105.1.9 ◽

2005 ◽

Vol 105 (1) ◽

pp. 9-14 ◽

Cited By ~ 1

Author(s):

David O. Lyons ◽

James J. Dunne

Keyword(s):

Sex Ratio ◽

Reproductive Ecology ◽

Operational Sex Ratio

The Sex Ratio in the Progeny of Oestrogen-Treated Parents in the Brown Leghorn

Poultry Science ◽

10.3382/ps.0580307 ◽

1958 ◽

Vol 37 (2) ◽

pp. 307-311 ◽

Cited By ~ 1

Author(s):

C. F. Pun

Keyword(s):

Sex Ratio

Fecundity length weight relationship and sex ratio in fresh water prawn Macrobrachium dayanum from Gho-Manhasan stream,Jammu, Jammu & Kashmir, India

International Journal of Scientific Research ◽

10.15373/22778179/july2013/186 ◽

2012 ◽

Vol 2 (7) ◽

pp. 533-534 ◽

Cited By ~ 2

Author(s):

Seema Langer ◽

◽

Krishan Raj Kant ◽

Dr.Sumit Koul

Keyword(s):

Sex Ratio ◽

Fresh Water ◽

Weight Relationship

Impact of transient high temperature during egg development on subsequent development, reproduction, and sex ratio inOstrinia furnacalis

10.1603/ice.2016.94049 ◽

2016 ◽

Author(s):

Kang-Lai He

Keyword(s):

High Temperature ◽

Sex Ratio ◽

Subsequent Development ◽

Egg Development

Gender as an evolutionary battleground: The remarkable dynamics of sex ratio in AustralianEuremabutterflies

10.1603/ice.2016.94002 ◽

2016 ◽

Author(s):

Darrell J. Kemp

Keyword(s):

Sex Ratio

Fecundity and Gonado-somatic Index of Trichiurus lepturus (Linnaeus, 1758) Along the Zamboanga del Norte Coast

International Journal of Emerging Research in Management and Technology ◽

10.23956/ijermt.v6i7.196 ◽

2018 ◽

Vol 6 (7) ◽

pp. 120

Author(s):

Ma. Dulce C. Guillena

Keyword(s):

Sex Ratio ◽

Stock Assessment ◽

Chi Square ◽

Moon Phases ◽

Ovary Weight ◽

Moment Coefficient ◽

Trichiurus Lepturus ◽

Significant Difference ◽

The Relationship ◽

Somatic Index

Gonado-somatic index and fecundity are tools for measuring the sexual maturity and ability of animals to reproduce. This study investigates the reproduction of Trichiurus lepturus. Specifically, this aimed to determine the sex ratio, the GSI, the relationship between fecundity and total length, fecundity and total weight, fecundity and ovary weight. The Descriptive Method of research was used. Percentage and chi-square was utilized in determining the percentage of occurrence and sex ratio respectively. Pearson r Product Moment Coefficient of Correlation was used to determine the relationships of the parameters. The study revealed that females outnumbered males and the sex ratio for different month showed significant difference. Spawning season was observed to occur in November and December as revealed in its GSI values and it synchronized with the full and new moon phases. Fecundity is positively correlated with body weight, body size, and ovary weight where ovary weight is observed to be the best index for fecundity. The results of this study could be used further for formal stock assessment of cutlassfish fishery.