HOME >> BIOLOGY >> NEWS
Groundbreaking study by Field Museum scientists explains mane variation in lions

CHICAGO--An article appearing in the current issue of the Journal of Zoology sheds light on several longstanding misconceptions regarding the controversial topic of mane variability among wild lions. This comprehensive scientific assessment of mane variation--including "manelessness"--is a first and took nearly seven years to complete.

According to the overall findings of the study, wild lions generally develop manes in accordance with local climate regimes. In Equatorial east Africa, climate is determined by elevation. Thus lions with the most profuse manes occur at the upper limit of their altitudinal range, while similar aged males in the lowest and warmest environments like Tsavo typically carry only modest or scanty manes.

However, the authors also found, paradoxically, that the majority of lions in regions like the greater Tsavo ecosystem (which is famed for its "maneless" lions), did appear to acquire respectable manes, eventually, contrary to most recent popular and scientific accounts of the lions from that region.

"We knew about the climate/elevation correlation since we were the first to publish those preliminary results in GEO 2001, but this new development really threw us for a loop," says Tom Gnoske, of the Field Museum's Zoology Department and senior author of the paper. "However once we analyzed all of the statistical data we found a very strong correlation linking increased age and continued mane development, a significant variable ignored by all previous authors."

Statistical data from this study demonstrates that the onset of mane development in lions living below an altitude of 800 meters on or near the equator is delayed, and that the "rate" or speed at which a mane develops in lions from those regions is slower on average than that of the more familiar lions living in the cooler, higher altitudes of the greater Serengeti ecosystem and elevated plains extending northward, suc
'"/>

Contact: Greg Borzo
gborzo@fieldmuseum.org
312-665-7106
Field Museum
25-Sep-2006


Page: 1 2 3 4

Related biology news :

1. Kaiser Permanente Unveils Groundbreaking Genetic Research Program
2. Kaiser Permanente Unveils Groundbreaking Genetic Research Program
3. Groundbreaking research highlights myriad health benefits of flavanol-rich cocoa
4. Groundbreaking study shows adult stem cells have same ability to self-renew as embryonic
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. Clones on task serve greater good, evolutionary study shows
7. Pollution causes 40 percent of deaths worldwide, study finds
8. A study by the MUHC and McGill University opens a new door to understanding cancer
9. New study suggests Concord grape juice may provide protection against breast cancer
10. Preclinical study links gene to brain aneurysm formation
11. In limiting life span, study finds booming bacteria innocent

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/16/2016)...   IdentyTechSolutions America LLC , a leading ... and a cutting-edge manufacturer of software and hardware ... seamless, integrated solutions that comprise IDT biometric readers ... provide IdentyTech,s customers with combined physical identification and ... and theft. "We are proud to ...
(Date:12/16/2016)... , Dec. 16, 2016 The global wearable medical device ... billion by 2021 from USD 5.31 billion in 2016, at a ... ... driven by technological advancements in medical devices, launch of a growing ... for wireless connectivity among healthcare providers, and increasing focus on physical ...
(Date:12/15/2016)... , Dec. 15, 2016   WaferGen Bio-systems, ... held genomics technology company, announced today that on December ... Qualifications Department of The Nasdaq Stock Market LLC which ... bid price of WaferGen,s common stock had been at ... WaferGen has regained compliance with Listing Rule 5550(a)(2) of ...
Breaking Biology News(10 mins):
(Date:1/14/2017)... ARLINGTON, Va. , Jan. 13, 2017  The ... following statement in response to FDA final guidance ... FDA for its continued leadership in emphasizing the importance ... members are keenly aware of the benefits biosimilars will ... costs.   Yet the portion of the ...
(Date:1/13/2017)... ... January 13, 2017 , ... ... demand that it has found among its diverse customer base. The latest entry ... in most brands electroporators including BTX and Bio-Rad. FireflySci is introducing three distinct ...
(Date:1/12/2017)... ... January 12, 2017 , ... ... short response times capable of performing routine electrochemical biosensing has increased dramatically. ... provide fast, sensitive detection and quantification of various analytes in complex samples. ...
(Date:1/12/2017)... 12, 2017   Protein Sciences Corporation , ... Flublok Influenza Vaccine ®, announced today that ... good safety results and induced strong neutralizing antibodies ... product is expected to advance into human clinical ... the Institute of Technology in Immunobiologicals of the ...
Breaking Biology Technology:
Cached News: