Navigation Links
Study: In wild yak society, moms are the real climbers
Date:6/17/2014

NEW YORK (June 17, 2014) A new study led by the Wildlife Conservation Society says that in wild yak societies, it's the mothers that are the real climbers. The study found that mothers with young venture on steeper terrain and slightly higher elevation than either males or females without young.

The authors of the study expect that this strategy is an adaptive way to avoid predators and to access more nutritious food. Wild yaks are an endangered species occurring only on the Tibetan Plateau and closely related to North American bison.

The study, which appears in the June issue of the Journal of Mammalogy is authored by Joel Berger of the Wildlife Conservation Society and the John J. Craighead professor at University of Montana; Ellen Cheng of the Ugyen Wangchuck Institute for Conservation and Environment; Aili Kang of WCS; Michael Krebs of the University of Montana; Lishu Li of Beijing; Zhao Xin Lu and Buqiong Buzhou of Kekexili National Nature Reserve Management Bureau; and George Schaller of WCS and Panthera.

The study reported that wild yak females are found on mountainous slopes averaging 15,994 feet and in groups of about 30 whereas males were more frequently in valley bottoms and groups of just two.

Wild yaks are the largest grazer north of the tropics; while weights are rarely known, they are larger than bison. Domestic yaks were once bred with bison in northern Canada in the 1920's in an attempt to make for more cold-hearty animals.

The authors of the study say that the remoteness of the wild yak's habitat gives conservationists an opportunity to study a species that has not been largely impacted by humans. Bison on the other hand, have been greatly impacted by human activity and habitat fragmentation. Their ability to range in higher elevations has been largely lost although skulls have been found in the Rocky Mountains above 12,000 feet in Utah, Colorado, and Wyoming.

Lead author Joel Berger of WCS and University of Montana said: "Neither habitat destruction nor fragmentation are issues in the yak's home in far western China, and so there are amazing opportunities to learn about why males and females respond differently to climate change and biological challenges. But, more fundamentally, just as people climb mountains in the Himalayas because they are there, here we have a throwback to the Pleistocene; it is still here, and we by uniting people from different countries have the opportunity to conserve a species, not to mention an ecosystem and a landscape that is larger than all of Montana and Nebraska combined."


'/>"/>

Contact: Stephen Sautner
ssautner@wcs.org
718-220-3682
Wildlife Conservation Society
Source:Eurekalert  

Related biology news :

1. Study: Iron consumption can increase risk for heart disease
2. Study: SSRI use during pregnancy associated with autism and developmental delays in boys
3. Study: Deforestation could intensify climate change in Congo Basin by half
4. Study: Black carbon is ancient by the time it reaches seafloor
5. Study: Salamanders shrinking due to climate change
6. Study: Stress impacts ability to get pregnant
7. IU study: College athletes often sidelined from healthy lifestyle later in life
8. Study: IOC should ban lead shot to help wildlife, water
9. Study: Electric drive vehicles have little impact on US pollutant emissions
10. New study: US power plant emissions down
11. New research study: The snowball effect of overfishing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study: In wild yak society, moms are the real climbers
(Date:2/2/2017)... JACKSONVILLE, Fla. , Feb. 2, 2017 /PRNewswire/ ... ), a clinical-stage immuno-oncology company specializing in the ... vaccines for the treatment of cancer and metastatic ... multi-gram scale-up and GMP manufacturing of a second ... T-cell vaccine targeting folate receptor alpha. The manufactured ...
(Date:1/30/2017)... Jan. 30, 2017   Invitae Corporation (NYSE: ... genetic information companies, today announced that it will report ... provide 2017 guidance on Monday, February 13, 2017, and ... day at 4:45 p.m. Eastern / 1:45 p.m. Pacific. ... will briefly review financial results, guidance, and recent developments ...
(Date:1/24/2017)... -- It sounds simple and harmless—an electronic sensor attached ... and alerts parents on their smart phones if, ... But pediatric experts argue that such devices may ... of medical benefits, especially to healthy babies. ... of healthy babies, promising peace of mind about ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... (NASDAQ: VWR), the leading global independent provider of product and ... financial results for the fourth quarter and full year ended ... 4Q16 record quarterly net sales of $1.13 billion, up 1.6% ... 4Q16 EMEA-APAC segment net sales increased 0.4%, ... sales increased 2.5%, or down 0.9% on an organic basis, ...
(Date:2/23/2017)... The Fight Against Cancer Innovation Trust (FACIT) and the ... report that Fusion Pharmaceuticals Inc. (Fusion) has closed a ... – JJDC, Inc. (JJDC) as the lead investor. Additional, ... and Genesys Capital, as well as founding investor FACIT.  ... ...
(Date:2/23/2017)... ... February 23, 2017 , ... Brain Sentinel, Inc. has received ... SPEAC® System, the Brain Sentinel® Seizure Monitoring and Alerting System. The adjunctive seizure ... periods of rest. A lightweight, non-invasive monitor is placed on the belly of ...
(Date:2/23/2017)...  Capricor Therapeutics, Inc. (NASDAQ: CAPR), a biotechnology company developing ... that Linda Marbán, Ph.D, president and chief executive officer, is ... Cowen and Company 37th Annual Health Care Conference ... Boston, MA 29th Annual ROTH ... pm ET) Dana Point, CA ...
Breaking Biology Technology: