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:
(Date:3/23/2015)... Conn. , Mar. 23, 2015 NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, announces its ... new advertising campaign on CNBC television starting March 30 th ... will commence airing in New York ... Officer said: "We are excited about our new ad campaign ...
(Date:3/19/2015)... 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... growing mobile commerce market, announces its biometric payment technology, the ... aired this week on Washington DC,s ... a segment "The Next Great Thing", host Laura Evans ... pay, and ,a really big breakthrough in mobile payment.,  ...
(Date:3/16/2015)... , March 16, 2015 ... Systems GmbH will present groundbreaking innovations in biometric ... Hanover, Germany .      (Photo: ... latest biometric innovation is well at the forefront: ... generation e-gate made in Germany ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3
(Date:3/26/2015)... , March 26, 2015 ... a global clinical research organization , ... a definitive agreement to acquire all of ... ("QSI"), a leading provider of specialized pharmacovigilance ... to the collection, detection, assessment, monitoring, and ...
(Date:3/26/2015)... Cranford, NJ (PRWEB) March 26, 2015 ... has partnered with researchers from Yale University’s School of ... provided by study participants during a 4 month-long project. ... impact of providing low income families with free access ... eating habits and diet-related health concerns like high blood ...
(Date:3/25/2015)... ROCKVILLE, Md. , March 25, 2015 ... for the Vaccine Industry Excellence (ViE) Award "Best Clinical ... second consecutive year that Optimal has been selected as ... World Vaccine Congress, receiving a "Highly Recommended" distinction in ... generate recognition of the efforts, accomplishments, and positive contributions ...
(Date:3/25/2015)... Accelovance, a therapeutically focused contract research organization ... Research Organization" at the upcoming Vaccine Industry Excellence (ViE) ... This is the eighth consecutive year Accelovance has ... for "Best Contract Research Organization" in 2009, 2010, and ... "We,re excited to be a finalist for ...
Breaking Biology Technology:PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 3PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 4Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 2Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 3Optimal Research Nominated 2015 Vaccine Industry Excellence (ViE) Award 2Accelovance Nominated for 2015 Vaccine Industry Excellence (ViE) Awards 2
Cached News: