Psychology Wiki
Register
No edit summary
Line 32: Line 32:
   
 
==Further reading==
 
==Further reading==
  +
*[http://scholar.google.com/scholar?sourceid=mozclient&num=50&scoring=d&ie=utf-8&oe=utf-8&q=Trivers-Willard Google Scholar]
   
 
* Keller, M.C., Nesse, R.M., & Hofferth, S. (2001). The Trivers-Willard hypothesis of parental investment: No effect in the contemporary United States. ''[[Evolution and Human Behavior]]'', 22, 343-360. [http://www-personal.umich.edu/~nesse/Articles/kellernesse-tweffect-ehb-2001.pdf Full text]
 
* Keller, M.C., Nesse, R.M., & Hofferth, S. (2001). The Trivers-Willard hypothesis of parental investment: No effect in the contemporary United States. ''[[Evolution and Human Behavior]]'', 22, 343-360. [http://www-personal.umich.edu/~nesse/Articles/kellernesse-tweffect-ehb-2001.pdf Full text]

Revision as of 06:08, 27 June 2006

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)


In evolutionary biology, the Trivers-Willard hypothesis proposes that parents should invest more in the sex that gives them the greatest reproductive payoff (grandchildren) with increasing or "marginal" investment. The hypothesis was used to explain why Red Deer mothers would produce more sons when they are in good condition, and more daughers when in poor condition.

Dominance also affects the sex of their offspring, with dominant females birthing more sons and non-dominant females birthing more daughters.

See also

Also, applications to the study of human behavior:

References

  • Trivers, R.L., & Willard, D.E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science, 179, 90-92.

Further reading

  • Keller, M.C., Nesse, R.M., & Hofferth, S. (2001). The Trivers-Willard hypothesis of parental investment: No effect in the contemporary United States. Evolution and Human Behavior, 22, 343-360. Full text
  • Quinlan, R., Quinlan, M. & Flinn, M. (2005). Local Resource Enhancement & Sex-biased Breastfeeding in a Caribbean Community. Current Anthropology, 46, 3, 471-480. Full text
This page uses Creative Commons Licensed content from Wikipedia (view authors).