Featured Research

from universities, journals, and other organizations

Meerkat predator-scanning behavior is altruistic, research suggests

Date:
February 4, 2013
Source:
University of Cambridge
Summary:
In order to spot potential predators, adult meerkats often climb to a higher vantage point or stand on their hind legs. If a predator is detected, they use several different alarm calls to warn the rest of the group. New research shows that they are more likely to exhibit this behavior when there are young pups present, suggesting that the predator-scanning behavior is for the benefit of the group rather than the individual.

Meerkats watching.
Credit: arzi12 / Fotolia

In order to spot potential predators, adult meerkats often climb to a higher vantage point or stand on their hind legs. If a predator is detected, they use several different alarm calls to warn the rest of the group. New Cambridge research shows that they are more likely to exhibit this behaviour when there are young pups present, suggesting that the predator-scanning behaviour is for the benefit of the group rather than the individual.

Meerkats are a cooperatively breeding species, with a dominant breeding pair and up to 40 'helpers' of both sexes who do not normally breed but instead assist with a number of cooperative activities such as babysitting and feeding of offspring.

However, scientists have questioned whether sentinel behaviour, when helper meerkats climb to a high point to scan for predators, and other vigilance behaviour, such as standing on their hind legs, is done for their own preservation (with the group's increased safety being an indirect consequence) or if the primary goal is altruistic, with the main purpose being the protection of the group.

Peter Santema, a PhD student at the University of Cambridge's Department of Zoology, said: "You see similar behaviour in a range of mammal and bird species, and we know from previous work that other group members are less likely to be attacked by predators when someone is on guard. Biologists have been debating, however, whether the protection that other group members enjoy is just a side-effect or one of the reasons why individuals perform these guarding behaviours."

For the research, which was funded by the BBSRC, scientists observed non-breeding helpers in the period just before the dominant female's pups had joined the group on foraging trips. They repeated the observations immediately after the pups joined the group. When they compared the results, they found that after the pups had joined the group on foraging trips, helpers showed a sudden increase in their vigilance behaviour.

Santema added: "These results are exciting, as they show us that individuals are not just on the look-out for their own safety, but that the protection of other group members is another motivation for these behaviours. Our results thus suggest that vigilance and sentinel behaviour in meerkats represent forms of cooperation."

The Cambridge research was published today in the journal Animal Behaviour.


Story Source:

The above story is based on materials provided by University of Cambridge. The original story is licensed under a Creative Commons license. Note: Materials may be edited for content and length.


Cite This Page:

University of Cambridge. "Meerkat predator-scanning behavior is altruistic, research suggests." ScienceDaily. ScienceDaily, 4 February 2013. <www.sciencedaily.com/releases/2013/02/130204220845.htm>.
University of Cambridge. (2013, February 4). Meerkat predator-scanning behavior is altruistic, research suggests. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2013/02/130204220845.htm
University of Cambridge. "Meerkat predator-scanning behavior is altruistic, research suggests." ScienceDaily. www.sciencedaily.com/releases/2013/02/130204220845.htm (accessed September 30, 2014).

Share This



More Plants & Animals News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Newsy (Sep. 30, 2014) A new study published by the World Wide Fund for Nature found that more than half of the world's wildlife population has declined since 1970. Video provided by Newsy
Powered by NewsLook.com
California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
Argentina Worries Over Decline of Soybean Prices

Argentina Worries Over Decline of Soybean Prices

AFP (Sep. 27, 2014) The drop in price of soy on the international market is a cause for concern in Argentina, as soybean exports are a major source of income for Latin America's third largest economy. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Mama Bear, Cubs Hang out in California Backyard

Mama Bear, Cubs Hang out in California Backyard

Reuters - US Online Video (Sep. 27, 2014) A mama bear and her two cubs climb trees, wrestle and take naps in the backyard of a Monrovia, California home. Vanessa Johnston reports. Video provided by Reuters
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