Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Adult male chimpanzees don't stray far from the home

03.01.2008
When it comes to choosing a place to live, male chimpanzees in the wild don’t stray far from home, according to a new report in the Dec. 27th Current Biology, a publication of Cell Press.

The researchers found that adult male chimps out on their own tend to follow in their mother’s footsteps, spending their days in the same familiar haunts where they grew up. Male chimpanzees are generally very social, but how they use space when they are alone might be critical to their survival, the researchers said.

“We have found that, like females, male chimpanzees have distinct core areas in which they forage alone and to which they show levels of site fidelity equal to those of females,” said Anne Pusey of the University of Minnesota. “Moreover, males remain faithful to the area in which they grew up with their mother, even 20 years after she has died. Even alpha males, who could presumably compete successfully to forage in the most productive areas, instead continue to forage in the areas in which they grew up, even in cases where this area is of poor quality.”

They suspect that sticking to places they know well might give chimpanzees an advantage when searching for food. The new findings therefore suggest that, even for males, the need to eat can sometimes trump sex. Because males’ reproductive success depends on the number of females they can fertilize, their ranging patterns were generally thought to be driven more by access to females than to food, she said. This study demonstrates that food and members of the opposite sex both affect male space use.

... more about:
»Food »Researchers »chimpanzees »male

The majority of studies on site fidelity have focused upon strictly territorial species in which individuals range in well-defined, exclusive areas, the researchers said. By comparison, little is known about species, including chimpanzees, that form more transient groups, lending them greater flexibility in individual space use.

Earlier studies based on indirect measures of ranging indicated that young adult male chimps seemed to continue to range near their mothers. In the new study, the researchers analyzed space use of male chimpanzees living in Gombe National Park, Tanzania, over four years. They compared the males’ ranges to those in which their mothers had travelled in years past.

“Our study shows that male site fidelity persists for years after the mother has died and probably for the whole life of the male,” Pusey said.

The findings raise interesting questions for future studies, she said. They plan to test whether chimpanzees really do find food more efficiently in familiar areas. They would also like to know whether males learn to follow particular diets from their mothers.

Cathleen Genova | EurekAlert!
Further information:
http://www.cell.com

Further reports about: Food Researchers chimpanzees male

More articles from Life Sciences:

nachricht Multi-institutional collaboration uncovers how molecular machines assemble
02.12.2016 | Salk Institute

nachricht Fertilized egg cells trigger and monitor loss of sperm’s epigenetic memory
02.12.2016 | IMBA - Institut für Molekulare Biotechnologie der Österreichischen Akademie der Wissenschaften GmbH

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>