Featured Research

from universities, journals, and other organizations

Biologist Gets The Straight Poop On Baboons: Execretion Analysis Aids Primate Social Studies

Date:
February 16, 2009
Source:
Duke University
Summary:
The arrival of molecular genetic analysis of both genes and hormones is providing scientists unexpected and unprecedented information about animals -- provided the researchers can find ways to get acceptable samples. Progress has been made in extracting DNA from animal droppings, and in extracting hormone breakdown products from excreted feces and urine.

Susan Alberts of Duke has found that paternal care influences the health and status of the baboon troop's youngsters. Image taken from research footage taken at the foot of Mt. Kilimanjaro
Credit: Susan Alberts, Duke University

The arrival of molecular genetic analysis of both genes and hormones is providing scientists unexpected and unprecedented information about animals -- provided the researchers can find ways to get acceptable samples, said Duke University biology professor Susan Alberts.

Related Articles


When researchers first genetically analyzed the DNA of songbirds in 1987 for example, they found that avian species thought to be "quintessentially monogamous actually engage in what we politely call extra-pair copulation," Alberts said. "It revealed to us that there is much going on behind the scenes that we can't detect from direct observations."

But while collecting songbird DNA can be simply a matter of climbing a tree to get "a little bit of blood from the nestling," getting samples from primates is another matter, Alberts said. Larger animals such as baboons typically need to be trapped or darted in order to get blood samples. And trapping or darting large mammals represents a major undertaking.

"All that can perturb their physiology, diet and nutrition, which is a big part of being a wild animal," she said. Moreover, "relatively large numbers of samples are required to reveal kin relationships within a primate social group."

Progress was made in the early 1990s when scientists developed techniques to extract DNA from animal droppings, she said. A second advance provided methods to extract hormone breakdown products from excreted feces and urine.

Alberts provided examples of what this new sampling has taught researchers in a symposium on the origins of complex societies in primates and humans, on Feb 15 during the American Association for the Advancement of Sciences' 2009 Annual Meeting in Chicago.

For instance, she said, by finding evidence for elevated levels of glucocorticoid stress hormone in the feces of female baboons that had lost a close female companion, researchers deduced that those animals were grieving. "Those showed physiological responses to what can only be termed a psychological event -- the loss of a friend," Alberts said. "This reveals a level of social involvement and complexity that had not been appreciated before."

Primates "live in matrilineal societies where females remain with their kin while males disburse," Alberts said. "If offspring have a high ranking mother a lot of things go well in their lives. If they have a low-ranking mother, things will not go so well."

Her research group's own DNA and hormone sampling at a baboon population in Kenya has revealed that "males actually provide paternal care too, something that we've never suspected," she said. "And females form friendships with paternal sisters as well as maternal sisters. They have these two different types of relatives that we didn't appreciate before and didn't understand."


Story Source:

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


Cite This Page:

Duke University. "Biologist Gets The Straight Poop On Baboons: Execretion Analysis Aids Primate Social Studies." ScienceDaily. ScienceDaily, 16 February 2009. <www.sciencedaily.com/releases/2009/02/090215151451.htm>.
Duke University. (2009, February 16). Biologist Gets The Straight Poop On Baboons: Execretion Analysis Aids Primate Social Studies. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2009/02/090215151451.htm
Duke University. "Biologist Gets The Straight Poop On Baboons: Execretion Analysis Aids Primate Social Studies." ScienceDaily. www.sciencedaily.com/releases/2009/02/090215151451.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Earthworms Provide Cancer-Fighting Bacteria

Earthworms Provide Cancer-Fighting Bacteria

Reuters - Innovations Video Online (Dec. 21, 2014) Polish scientists isolate bacteria from earthworm intestines which they say may be used in antibiotics and cancer treatments. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Reuters - Innovations Video Online (Dec. 21, 2014) A team of scientists led by Danish chemist Jorn Christensen says they have isolated two chemical compounds within an existing antipsychotic medication that could be used to help a range of failing antibiotics work against killer bacterial infections, such as Tuberculosis. Jim Drury went to meet him. Video provided by Reuters
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) 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