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http://www.chicagowilderness.org/CW_Archives/issues/winter2003/prairievole.html

Inducing Paternal Behavior in Prairie Voles. http://www.chicagowilderness.org/CW_Archives/issues/winter2003/prairievole.html. Dana Eye , Rav Mundi, and Emma Garson. Key Players. Thomas Terleph Maryam Bamshad M. ochrogaster.

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http://www.chicagowilderness.org/CW_Archives/issues/winter2003/prairievole.html

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  1. Inducing Paternal Behavior in Prairie Voles http://www.chicagowilderness.org/CW_Archives/issues/winter2003/prairievole.html Dana Eye , RavMundi, and Emma Garson

  2. Key Players Thomas TerlephMaryamBamshadM. ochrogaster http://works.bepress.com/assets/md5images/34b3c6e2945c29c687eb74d8098190a1.jpg http://www.wiley.com/college/sc/enews/maryam.gif http://www.animalspot.net/wp-content/uploads/2012/04/Prairie-Vole-Pictures.jpg

  3. Background • Monogamous pairs • Both parents help rear young • Low infanticidal tendencies • (Bamshad et al, 1992) http://knowingneurons.files.wordpress.com/2013/02/prairievole.jpg?w=289&h=222

  4. Previous Research Male Prairie Voles: Spent most time of a partner in the natal nest Highest partner pup interaction Highest partner-mother interaction

  5. The Big Question What effect does mating and cohabitation have on inducing paternal care in prairie voles?

  6. Methods http://phys.org/news/2013-06-epigenetic-factor-monogamy-voles.html

  7. Experimental Setup • 84 sexually inexperienced male prairie voles • Each vole weaned at 21 days/ housed with same sex sibling in 48x27x20cm clear plastic cages* • 84 males divided randomly into 4 groups*

  8. Subgroup Division Short Cohabitation

  9. YoungIntroduced http://discovermagazine.com/~/media/import/images/c/3/a/love_3

  10. Defining Behavior Parental Behaviour http://www.nature.com/news/2004/040617/full/news040614-7.html Non-Social Behaviour http://www.flickr.com/photos/30793552@N04/7523368472/

  11. Results

  12. Results Control/ Isolated males, least time on parental care Cohabitation with female increased duration of care (Terleph et al. 2004)

  13. Results Continued (Terleph et al. 2004)

  14. Conclusions • Contact with females whether mating has occurred or not, stimulates paternal care • Perhaps females provide sensory cues to males to trigger their paternal instincts

  15. Subsequent Research https://www.facebook.com/pages/Prairie-Voles/204873049526042 (Simoncelli et al. 2010)

  16. Unanswered Questions • Medial amygdala in the brain may be an important factor in parental behavior in prairie voles • Role of Vassopressin and other neurotransmitters in paternal responsiveness, or aggression/processing of sensory cues

  17. Any Questions?? Simoncelli, L., Delevan, C., Al-Naimi, O., and Bamshad M. (2010). Female tactile cues maximize paternal behavior in prairie voles. Behavioral Ecology and Social Biology, 64:865-873.

  18. References Bamshad, M., and Novak, M. (1992). Interactions of mothers with partnes of different sexes in meadow voles and prairie voles. Journal of Mammalogy, 73: 303-311. Kunkele, J. (1992) Infanticide in wild rabbits. Journal of Mammalogy, 73: 317-320. Mcguire, B., Henyey, E., McCue, E., and Bemis, W. (2003). Journal of Mammalogy, 84: 513-523. Simoncelli, L., Delevan, C., Al-Naimi, O., and Bamshad M. (2010). Female tactile cues maximize paternal behavior in prairie voles. Behavioral Ecology and Social Biology, 64:865-873. Terleph, T., Jean-Baptiste, N., and Bamshad, M. (2004). Mechanisms and time course for induction of paternal behavior in prairie voles. Journal of Mammalogy, 85: 1124-1129.

  19. Discussion Questions • 1. What are the benefits, if any, of infanticidal tendencies? (Dana) • 2. How can the social behaviors in prairie voles be compared to humans? How could understanding the mechanism by which social attachments are induced in animals, like the prairie vole, aid in understanding neural disorders that affect social attachment in humans (eg. Autism and Schizophrenia)? (Emma) • 3. Data for males who behaved aggressively towards the young was excluded from the analysis. Why might this have been done?(Rav) • 4. Although males were originally kept in cages with bedding to stimulate natural conditions, during mating the bedding was removed. Can you think of reason as to why this was done? If you were repeating this experiment, what might you do differently in this case? (Rav)

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