Featured Research

from universities, journals, and other organizations

New Study Explores The Evolution Of Male Parental Care And Female Multiple Mating

Date:
July 27, 2005
Source:
University of Chicago Press Journals
Summary:
A new study by Joe Yuichiro Wakano and Yasuo Ihara in the August 2005 issue of the American Naturalist investigates a game-theoretical model in which females gain a direct benefit by multiple mating from the paternal care they elicit for their offspring. As a result, various combinations of male parental care and female multiple mating evolve.

Males enjoy larger reproductive success by mating with many females, whereas the number of offspring per female does not increase by mating with many males. Furthermore, males run the risk of investing in offspring of other males if they provide parental care.

Nevertheless, in various species, males provide parental care and females mate with multiple males. For example, recent empirical studies show that extra-pair copulation frequently occurs in monogamous birds in which a "social" father provides intensive care for its "social" offspring. Can such pseudo-monogamy through the Darwinian theory of evolution?

A new study by Joe Yuichiro Wakano and Yasuo Ihara in the August 2005 issue of The American Naturalist investigates a game-theoretical model in which females gain a direct benefit by multiple mating from the paternal care they elicit for their offspring.

As a result, various combinations of male parental care and female multiple mating evolve. The parameters that directly favor male parental care, such as small cost of paternal care, have indirect positive effects on the evolution of female multiple mating, while they have negative effects in the opposite case. Both traits are more likely to evolve when the number of matings is smaller.

Based on the model result, the researchers provide a hypothesis explaining why pseudo-monogamy evolved in birds.

###

Sponsored by the American Society of Naturalists, The American Naturalist is a leading journal in the fields of ecology and evolutionary biology and animal behavior. For more information, please see our website: www.journals.uchicago.edu/AN

Joe Yuichiro Wakano and Yasuo Ihara, "Evolution of male parental care and female multiple mating: Game-theoretical and two-locus diploid models"166:2 August 2005.


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.


Cite This Page:

University of Chicago Press Journals. "New Study Explores The Evolution Of Male Parental Care And Female Multiple Mating." ScienceDaily. ScienceDaily, 27 July 2005. <www.sciencedaily.com/releases/2005/07/050727060446.htm>.
University of Chicago Press Journals. (2005, July 27). New Study Explores The Evolution Of Male Parental Care And Female Multiple Mating. ScienceDaily. Retrieved August 29, 2014 from www.sciencedaily.com/releases/2005/07/050727060446.htm
University of Chicago Press Journals. "New Study Explores The Evolution Of Male Parental Care And Female Multiple Mating." ScienceDaily. www.sciencedaily.com/releases/2005/07/050727060446.htm (accessed August 29, 2014).

Share This




More Plants & Animals News

Friday, August 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Raw: Australian Sheep Gets Long Overdue Haircut

Raw: Australian Sheep Gets Long Overdue Haircut

AP (Aug. 28, 2014) Hoping to break the record for world's wooliest, Shaun the sheep came up 10 pounds shy with his fleece weighing over 50 pounds after being shorn for the first time in years. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Minds Blown: Scientists Develop Fish That Walk On Land

Minds Blown: Scientists Develop Fish That Walk On Land

Newsy (Aug. 28, 2014) Canadian scientists looking into the very first land animals took a fish out of water and forced it to walk. Video provided by Newsy
Powered by NewsLook.com
Huge Ancient Wine Cellar Found In Israel

Huge Ancient Wine Cellar Found In Israel

Newsy (Aug. 28, 2014) An international team uncovered a large ancient wine celler that likely belonged to a Cannonite ruler. Video provided by Newsy
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:
from the past week

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