Featured Research

from universities, journals, and other organizations

More omnivore dilemmas: Seasonal diet changes can cause reproductive stress in primates

Date:
November 28, 2012
Source:
Public Library of Science
Summary:
When seasonal changes affect food availability, omnivores like blue monkeys adapt by changing their diets, but such nutritional changes may impact female reproduction, according to new research.

This is a blue monkey.
Credit: Steffen Foerster; Steffen Foerster, Marina Cords, Steven L. Monfort. Seasonal Energetic Stress in a Tropical Forest Primate: Proximate Causes and Evolutionary Implications. PLoS ONE, 2012; 7 (11): e50108 DOI: 10.1371/journal.pone.0050108

When seasonal changes affect food availability, omnivores like blue monkeys adapt by changing their diets, but such nutritional changes may impact female reproduction, according to research published November 28 in the open access journal PLOS ONE by Steffen Foerster from Barnard College, and colleagues from Columbia University and the Smithsonian Institution.

The authors found that levels of fecal glucocorticoids (fGC), a stress marker, increased when female monkeys shifted their diet towards lower quality fallback foods, whereas the levels decreased when the monkeys had access to preferred foods like insects, fruits and young leaves.

They also found that lactating females and those in the later stages of pregnancy showed greater increases in the stress marker than females who were not in these stages of reproduction. According to the authors, their results suggest that these seasonal changes in food availability may affect inter-birth intervals in these primates, and also affect the timing of infant independence from mothers.

Foerster adds, ""While it was interesting to find that even subtle changes in dietary composition may have strong effects on female reproductive decisions, it is equally noteworthy that social stress was almost entirely absent from blue monkey societies. Our study makes the point that integrating behavioral, ecological, and hormonal measures can reveal adaptive behavioral and reproductive strategies that would otherwise be difficult to discern."


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. Steffen Foerster, Marina Cords, Steven L. Monfort. Seasonal Energetic Stress in a Tropical Forest Primate: Proximate Causes and Evolutionary Implications. PLoS ONE, 2012; 7 (11): e50108 DOI: 10.1371/journal.pone.0050108

Cite This Page:

Public Library of Science. "More omnivore dilemmas: Seasonal diet changes can cause reproductive stress in primates." ScienceDaily. ScienceDaily, 28 November 2012. <www.sciencedaily.com/releases/2012/11/121128182947.htm>.
Public Library of Science. (2012, November 28). More omnivore dilemmas: Seasonal diet changes can cause reproductive stress in primates. ScienceDaily. Retrieved July 26, 2014 from www.sciencedaily.com/releases/2012/11/121128182947.htm
Public Library of Science. "More omnivore dilemmas: Seasonal diet changes can cause reproductive stress in primates." ScienceDaily. www.sciencedaily.com/releases/2012/11/121128182947.htm (accessed July 26, 2014).

Share This




More Plants & Animals News

Saturday, July 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How to Make Single Serving Smoothies: Howdini Hacks

How to Make Single Serving Smoothies: Howdini Hacks

Howdini (July 24, 2014) Smoothies are a great way to get in lots of healthy ingredients, plus they taste great! Howdini has a trick for making the perfect single-size smoothie that will save you time on cleanup too! All you need is a blender and a mason jar. Video provided by Howdini
Powered by NewsLook.com
Boy Attacked by Shark in Florida

Boy Attacked by Shark in Florida

Reuters - US Online Video (July 24, 2014) An 8-year-old boy is bitten in the leg by a shark while vacationing at a Florida beach. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Newsy (July 24, 2014) A new study claims a set of prehistoric T-Rex footprints supports the theory that the giant predators hunted in packs instead of alone. 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