Featured Research

from universities, journals, and other organizations

Attractive and successful: In bonobos, attractive females are more likely to win conflicts against males

Date:
July 15, 2013
Source:
Max Planck Institute for Evolutionary Anthropology
Summary:
While intersexual dominance relations in bonobos never have been thoroughly studied in the wild, several ideas exist of how females attain their dominance status. Some researchers suggest that bonobo female dominance is facilitated by females forming coalitions which suppress male aggression. Others think of an evolutionary scenario in which females prefer non-aggressive males which renders male aggressiveness to a non-adaptive trait.

Bonobo man Jack grooms female Susi in Salonga National Park in the Democratic Republic of the Congo.
Credit: Caroline Deimel, LuiKotale Bonobo Project

While intersexual dominance relations in bonobos never have been thoroughly studied in the wild, several ideas exist of how females attain their dominance status. Some researchers suggest that bonobo female dominance is facilitated by females forming coalitions which suppress male aggression. Others think of an evolutionary scenario in which females prefer non-aggressive males which renders male aggressiveness to a non-adaptive trait.

A recent study by researchers of the LuiKotale bonobo project from the Max Planck Institute for Evolutionary Anthropology reports on the outcomes of intersexual conflicts in a bonobo community near the Salonga National Park in the Democratic Republic of the Congo. Based on the analysis of outcomes of conflicts between the sexes, they found a sex-independent dominance hierarchy with several females occupying top ranks.

Furthermore they discovered that only two factors have a significant influence on the outcome of intersexual conflicts: female motivation to help offspring and attractiveness. That is, whenever females defend their offspring against male aggression, often alone but sometimes in groups, males defer to females. But even more interestingly, females are more likely to win conflicts against males during times when they exhibit sexual swellings indicating elevated fecundity.

Dr. Martin Surbeck, first author of the publication, says: “In those situations, males also aggress females less often, which is different from chimpanzees, our other closest living relatives.” The results indicate that in bonobos both female sexuality and male mating strategies are involved in the shifting dominance relationships between the sexes.


Story Source:

The above story is based on materials provided by Max Planck Institute for Evolutionary Anthropology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Martin Surbeck, Gottfried Hohmann. Intersexual dominance relationships and the influence of leverage on the outcome of conflicts in wild bonobos (Pan paniscus). Behavioral Ecology and Sociobiology, 2013; DOI: 10.1007/s00265-013-1584-8

Cite This Page:

Max Planck Institute for Evolutionary Anthropology. "Attractive and successful: In bonobos, attractive females are more likely to win conflicts against males." ScienceDaily. ScienceDaily, 15 July 2013. <www.sciencedaily.com/releases/2013/07/130715105206.htm>.
Max Planck Institute for Evolutionary Anthropology. (2013, July 15). Attractive and successful: In bonobos, attractive females are more likely to win conflicts against males. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2013/07/130715105206.htm
Max Planck Institute for Evolutionary Anthropology. "Attractive and successful: In bonobos, attractive females are more likely to win conflicts against males." ScienceDaily. www.sciencedaily.com/releases/2013/07/130715105206.htm (accessed July 22, 2014).

Share This




More Plants & Animals News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Michigan Plant's Goal: Flower and Die

Michigan Plant's Goal: Flower and Die

AP (July 22, 2014) An 80-year-old agave plant, which is blooming for the first and only time at a University of Michigan conservatory, will die when it's done (July 22) Video provided by AP
Powered by NewsLook.com
San Diego Zoo Welcomes New, Rare Rhino Calf

San Diego Zoo Welcomes New, Rare Rhino Calf

Reuters - US Online Video (July 21, 2014) An endangered black rhino baby is the newest resident at the San Diego Zoo. Sasha Salama reports. Video provided by Reuters
Powered by NewsLook.com
Shark Sightings a Big Catch for Cape Tourism

Shark Sightings a Big Catch for Cape Tourism

AP (July 21, 2014) A rise in shark sightings along the shores of Chatham, Massachusetts is driving a surge of eager vacationers to the beach town looking to catch a glimpse of a great white. (July 21) Video provided by AP
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. 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