Navigation Links
Bigger gorillas better at attracting mates and raising young
Date:5/1/2012

Conservationists with the Wildlife Conservation Society and the Max Planck Institute for Evolutionary Anthropology have found that larger male gorillas living in the rainforests of Congo seem to be more successful than smaller ones at attracting mates and even raising young.

The studyconducted over a 12-year period in Nouabal-Ndoki National Park in the Republic of Congohelps to illuminate the selective pressures that influence the evolution of great apes.

The study appears in a recent edition of Journal of Human Evolution. The authors of the study include: Thomas Breuer of the Wildlife Conservation Society and the Max Planck Institute for Evolutionary Anthropology; and Andrew M. Robbins, Christophe Boesch, and Martha M. Robbins of the Max Planck Institute for Evolutionary Anthropology.

In assessing the role of size in the reproductive success of "silverback" gorillas, the researchers selected three physical factors for measurement: overall body length; the size of the adult male's head crest (also known as a sagittal crest which is absent in females); and the size of an individual's gluteal muscles on the animal's posterior. The researchers then compared data on individual size with information on group dynamics to explore possible correlations between physical characteristics of adult males, the number of female gorillas connected to males, and the survival rates of an adult gorilla's offspring.

The results of the study revealed that all three characteristics were positively correlated to an adult male's average number of mates. In other words, the bigger the adult male, the more mates it had. An unexpected finding was that only head-crest size and gluteal muscles were strongly related to offspring survival (measured as infants that survived to weaning age) and overall reproductive success, measured as the number of surviving offspring.

"Our findings of correlations between physical traits and male repro
'/>"/>

Contact: John Delaney
jdelaney@wcs.org
718-220-3275
Wildlife Conservation Society
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Plants grow bigger and more vigorously through changes in their internal clocks
2. In the animal world, bigger isnt necessarily better
3. Male crickets with bigger heads are better fighters, study reveals, echoing ancient Chinese text
4. Beverage consumption a bigger factor in weight
5. Better food makes high-latitude animals bigger
6. Bigger not necessarily better, when it comes to brains
7. When it comes to fish families, the bigger and bossier the better
8. King crab family bigger than ever
9. The bigger the animal, the stiffer the shoes
10. Evolution drives many plants and animals to be bigger, faster
11. Small insects attacks and kill amphibians much bigger than themselves
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bigger gorillas better at attracting mates and raising young
(Date:7/23/2014)... is commonly found in dead bodies and is ... death, referred to as the post mortem interval. A ... from Tamil Nadu is provided for the first ... generation of DNA barcoding. This study, significant in forensic ... Data Journal . , Chrysomya megacephala is ...
(Date:7/23/2014)... The potential for clinical use of induced pluripotent ... has previously been hindered by the risk of ... The ability to use etoposide treatment to halt ... heart disease, specifically acute myocardial infarction, is demonstrated ... Development , a peer-reviewed journal from Mary Ann ...
(Date:7/23/2014)...   MedNet Solutions , a global life ... systems, is pleased to announce that M. ... executive with over 25 years of experience, has ... be responsible for MedNet,s day-to-day operating activities, driving ... product/service delivery.  "We welcome Clareece, ...
Breaking Biology News(10 mins):Dead body feeding larvae useful in forensic investigations 2MedNet Appoints Clareece West As Chief Operating Officer 2
... Michigan A new internet-based tool for designing agricultural ... to optimize design by allowing rapid development of alternative ... Resource: Engineering & Technology for a Sustainable World ... Agricultural Engineering at the University of Missouri, introduces a ...
... investigation an international body of earth scientists has formally agreed ... by 800,000 years, reports the Journal of Quaternary Science ... International Commission on Stratigraphy (ICS), the authority for geological science ... declaring when the Quaternary Period, which covers both the ice ...
... , , , ... (OTC Bulletin Board: PBME), a leading provider of specialized reference ... a Loan and Security Agreement with Terry M. Giles, providing for ... connection with, and as required by the Loan, on August 31, ...
Cached Biology News:Web-based innovation improves, eases agricultural terrace design 2End of an era: New ruling decides the boundaries of Earth's history 2Pacific Biometrics Completes $4 Million Debt Financing 2Pacific Biometrics Completes $4 Million Debt Financing 3Pacific Biometrics Completes $4 Million Debt Financing 4Pacific Biometrics Completes $4 Million Debt Financing 5
(Date:7/23/2014)... ANTONIO , 23 de julio de 2014 ... (ADBI o la Compañía) ha anunciado hoy una ... Akron (ABIA o el Instituto), para ... ADBI, un dispositivo de terapia de señal bioeléctrica ... El Instituto, que tiene una importante ...
(Date:7/23/2014)... , July 23, 2014 /PRNewswire/ - BioAmber ... biotechnology company producing sustainable chemicals, today announced that the ... full their option to purchase an additional 420,000 ... price of $12.00 per share, less underwriting discounts ... underwritten public offering of 2,800,000 shares of common ...
(Date:7/23/2014)...  Sofinnova Ventures, a Menlo Park ... Sofinnova Venture Partners IX, L.P. at the hard cap ... fund target of $425 million. Sofinnova focuses ... with recent funds, SVP IX will provide capital primarily ... with select investments in earlier stage opportunities. Investments will ...
(Date:7/23/2014)... a2z Inc. announces that AACC will ... Pathfinder, in its 2014 Annual Meeting & Clinical ... planned for July 29-31, 2014 in Chicago, IL at ... connect with global leaders in clinical chemistry, molecular diagnostics, ... of breaking science in laboratory medicine. , ChirpE Photo ...
Breaking Biology Technology:ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 2ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 3ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 4ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 5ADB International Group Inc. anuncia una asociación con Austen BioInnovation Institute 6BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 2BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 3Sofinnova Raises $500 Million Biotech Venture Fund 2AACC Enhances Attendee Experience at Its 2014 Annual Meeting & Clinical Lab Expo with a2z-Powered ChirpE Photo Booth and Mobile App 2AACC Enhances Attendee Experience at Its 2014 Annual Meeting & Clinical Lab Expo with a2z-Powered ChirpE Photo Booth and Mobile App 3
... Decrease 2.8% for Quarter, Increase 19.9% Year-to-Date - EPS $(0.04) Versus $(0.03) ... ... - Results Impacted by Expenses of Retail Launch - Sees ... - Warrant extension offer is successful, ...
... ATLANTA, Feb. 13 CryoLife, Inc. (NYSE: CRY ... that it is scheduled to participate in the Roth ... 2008 at the Ritz Carlton,Laguna Niguel in Dana Point, ... operating officer and,chief financial officer of CryoLife, Inc., will ...
... Company Establishes U.S. subsidiary in Philadelphia Area -, ... leader in in,vivo cellular imaging, announced today the ... is the U.S. subsidiary of Paris-based Mauna,Kea Technologies ... imaging approach which improves patient care by eliminating ...
Cached Biology Technology:Imagenetix Inc. Reports Third Fiscal Quarter Results 2Imagenetix Inc. Reports Third Fiscal Quarter Results 3Imagenetix Inc. Reports Third Fiscal Quarter Results 4CryoLife to Present at Roth Capital Partners 20th Annual Orange County (OC) Growth Stock Conference 2Chris Tihansky Appointed President of In Vivo Cellular Imaging Leader Cellvizio Inc. 2
Epi-Grids™ Colony Grid Templates are easy-to-use griding templates that allow rapid organization of colonies from initial screening plates and for preparing precise master plates....
Agarose, low melting/gelling temperature, high MW separation (>1000 bp), 25 g. Suitable for enzymatic modifications. Nuclease-free.Gel point: 24-30 C, EEO (-mr): 300 gm/cm2. Category: Nucleotides &...
Request Info...
Request Info...
Biology Products: