Featured Research

from universities, journals, and other organizations

Study Explores Why Some Individuals Sacrifice To Help Others Reproduce

Date:
March 9, 2006
Source:
University of Chicago Press Journals
Summary:
Biologists have explored a theory of social behavior that seeks to explain why some individuals willingly sacrifice their own reproduction to help raise others' offspring.

Peter Nonacs (University of California - Los Angeles), Aviva E. Liebert (Tufts University) and Philip T. Starks (Tufts University) have explored a theory of social behavior that seeks to explain why some individuals willingly sacrifice their own reproduction to help raise others' offspring.

"Transactional Skew" (TS) theory proposes that such cooperation is possible through "shared reproduction," making it worthwhile to help close relatives because some of the same genes are getting passed along. Thus, the degree of shared reproduction should vary across groups by the degree to which they are related.

However, in a study across four species of paper wasps -- long considered one of the best examples supporting this theory -- the researchers found that not only was there cooperation and shared reproduction between sisters but also between distantly related or unrelated wasps.

"This result strongly rejects the unique TS prediction that the level of cooperation should vary across groups according to the attributes of individual group members," says Nonacs. "[We] propose an alternative explanation in which wasps seek to cooperate with close kin, but less related groups sometimes form due to recognition errors."


Story Source:

The above story is based on materials provided by University of Chicago Press Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nonacs et al. Transactional Skew and Assured Fitness Return Models Fail to Predict Patterns of Cooperation in Wasps.. The American Naturalist, 2006; 167 (4): 467 DOI: 10.1086/501168

Cite This Page:

University of Chicago Press Journals. "Study Explores Why Some Individuals Sacrifice To Help Others Reproduce." ScienceDaily. ScienceDaily, 9 March 2006. <www.sciencedaily.com/releases/2006/03/060308212003.htm>.
University of Chicago Press Journals. (2006, March 9). Study Explores Why Some Individuals Sacrifice To Help Others Reproduce. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2006/03/060308212003.htm
University of Chicago Press Journals. "Study Explores Why Some Individuals Sacrifice To Help Others Reproduce." ScienceDaily. www.sciencedaily.com/releases/2006/03/060308212003.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Adorable Video of Baby Rhino and Lamb Friend Playing

Adorable Video of Baby Rhino and Lamb Friend Playing

Buzz60 (Oct. 20, 2014) Gertjie the Rhino and Lammie the Lamb are teaching the world about animal conservation and friendship. TC Newman (@PurpleTCNewman) has the adorable video! Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins