Featured Research

from universities, journals, and other organizations

Bottlenose dolphin leaders more likely to lead relatives than unrelated individuals

Date:
March 13, 2013
Source:
Public Library of Science
Summary:
Traveling into uncharted territory in search of food can be a dangerous undertaking, but some bottlenose dolphins may benefit by moving through their habitat with relatives who may be more experienced or knowledgeable. It turns out that leaders in bottlenose dolphin groups in the Florida Keys are more likely to be related to the dolphins that follow them.

Dolphins travelling in a group.
Credit: NMFS GA No. 15459 (Jennifer Lewis)

Traveling into uncharted territory in search of food can be a dangerous undertaking, but some bottlenose dolphins may benefit by moving through their habitat with relatives who may be more experienced or knowledgeable. It turns out that leaders in bottlenose dolphin groups in the Florida Keys are more likely to be related to the dolphins that follow them, according to research published March 13 by Jennifer Lewis and colleagues from Florida International University.

In complex habitats like the shallow waters of the Florida Keys, individuals who follow may benefit from the experience of those that lead them, but the advantages to leaders are less obvious, as they must share food resources encountered with the group. In this study, the authors assessed indirect benefits to leaders in bottlenose dolphin groups, by measuring the chances of a leader being related to their followers. They found that when two dolphins shared a leader-follower relationship, their chances of being related were much higher than seen in dolphin pairs that associated in other ways.

Lewis adds, "These results are particularly interesting because bottlenose dolphins do not stay in the same groups all the time. In fact, they change over periods of hours or days. That specific pairings within these groups (according to their roles of leader and follower) does occur, suggests that these associations are not random and that individual choices are made about leaders."


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jennifer S. Lewis, Douglas Wartzok, Michael Heithaus, Michael Krόtzen. Could Relatedness Help Explain Why Individuals Lead in Bottlenose Dolphin Groups? PLoS ONE, 2013; 8 (3): e58162 DOI: 10.1371/journal.pone.0058162

Cite This Page:

Public Library of Science. "Bottlenose dolphin leaders more likely to lead relatives than unrelated individuals." ScienceDaily. ScienceDaily, 13 March 2013. <www.sciencedaily.com/releases/2013/03/130313182146.htm>.
Public Library of Science. (2013, March 13). Bottlenose dolphin leaders more likely to lead relatives than unrelated individuals. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2013/03/130313182146.htm
Public Library of Science. "Bottlenose dolphin leaders more likely to lead relatives than unrelated individuals." ScienceDaily. www.sciencedaily.com/releases/2013/03/130313182146.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

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
'Crazy' Climate Forces Colombian Farmers to Adapt

'Crazy' Climate Forces Colombian Farmers to Adapt

AFP (Sep. 26, 2014) — Once upon a time, farming was a blissfully low-tech business on Colombia's northern plains. Duration: 02:05 Video provided by AFP
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