HOME >> BIOLOGY >> NEWS
Monogamous animals may be more likely to die out

New research reveals a surprising risk factor for extinction: monogamy. Large mammals that live in pairs or have small harems are far more likely to die out than those with big harems in reserves in Ghana.

"In avoiding extinction, it pays to be promiscuous," says Justin Brashares of the University of British Columbia in Vancouver, who presents this work in the June issue of Conservation Biology. "This study is the first to show a strong link between social behavior and risk of extinction in mammals."

Most studies of risk factors for extinction are based on natural extinctions through the ages but other risk factors may be at play in today's world, where the extinction rate is unnaturally high due to overhunting, habitat fragmentation and other disturbances caused by people. Knowing which species are particularly sensitive to these disturbances would help conservationists figure out how to save them. Since 1970, more than half of the mammal populations in Ghanian reserves have become locally extinct. "This shocking loss of abundance and local diversity is occurring throughout Africa," says Brashares.

To help identify the risk factors for modern extinctions, he analyzed the extinctions and persistences of large mammals in six reserves in the savannas of Ghana, where the mammals have been censused monthly for more than 30 years and 78 local extinctions have been documented. Brashares assessed the extinction risk of nine traits (including population isolation, harem size, abundance and how much people like to eat them) in 41 mammal species (9 primates, 24 ungulates and 8 carnivores).

After accounting for the effect of reserve size, Brashares found that two of the factors studied correlated with local extinctions in the Ghanian reserves. The first is population isolation, which is not surprising because this was previously known to be a risk factor for natural extinctions.

The second is harem size: mammals that are monogamous or
'"/>

Contact: Justin Brashares
justinb@zoology.ubc.ca
604-822-0862
Society for Conservation Biology
23-May-2003


Page: 1 2

Related biology news :

1. Sweet success in targeting sugar molecules to cells in living animals
2. The first engineering of cell surfaces in living animals
3. New comprehensive textbook on companion animals fills need
4. Why some animals have smaller eyes: Lifestyle matters
5. Social benefits of wound healing may not make any difference in animals with multiple partners
6. Firefly compound lights up protein dance in living animals
7. Japanese researchers develop novel method of introducing transgenes into animals
8. Researchers make promiscuous animals monogamous by manipulating genes
9. How do animals exposed to 24-hour light retain their wake-sleep habits?
10. UIC researchers discover gene that causes liver cancer in animals
11. Mix of chemicals plus stress damages brain, liver in animals and likely in humans

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Monogamous animals may more likely die out

(Date:6/24/2015)... -- The biologics safety testing market is growing at ... include growth of the pharmaceutical and biological industries and ... years, the number of drug approvals in North American ... approved 225 drug applications and Health Canada approved 99. ... accounted for 3,822 of the pharmaceutical and 1,998 ...
(Date:6/23/2015)... MINNETONKA, Minn. , June 23, 2015 /PRNewswire/ ... technology company that supports the entire spectrum of ... iMedNet ™ , the company,s ... has been awarded a Silver 2015 Stevie® Award ... the Health Products & Services Website category.  The ...
(Date:6/18/2015)... 18, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market announces that its Wocket® smart ... "Money on the Mark", scheduled to air on WABC Radio ... 20 th . The broadcast air- time ... to 8:00pm EST. NXT-ID, Inc.,s CEO Gino Pereira ...
Breaking Biology News(10 mins):Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3
(Date:7/1/2015)... IN (PRWEB) , ... July 01, 2015 , ... Apex ... 2015 BIO International Convention in Philadelphia, PA. , The presentation took place ... and outlined the plans for the development of APX3330 for the treatment of pancreatic ...
(Date:6/30/2015)... ... June 30, 2015 , ... Students ... part in the first half of “Integrative Biotechnology,” an applied biotechnology course team-taught ... summer 2014, this course combines students from both universities and is taught on ...
(Date:6/30/2015)... , June 30, 2015  Juniper Pharmaceuticals, ... focused on developing therapeutics that address unmet medical ... George Elston will present at the ... Wednesday, July 8, 2015Time: , 4:45 PM EDTLocation: ... (live & archive): , www.juniperpharma.com, under  ,Investor, ...
(Date:6/30/2015)... , ... June 30, 2015 , ... ... to the federal government, announced in a paper published this week in the ... potential problem with the diagnostic techniques currently used to detect the Ebola virus. ...
Breaking Biology Technology:Apex Therapeutics Presented Company Overview at This Year’s BIO International Convention in Philadelphia, PA 2Rivier University and Beijing City University Academic and Cultural Exchanges Begin 2Juniper Pharmaceuticals to Present at Cantor Fitzgerald Inaugural Healthcare Conference on July 8, 2015 2Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 2Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 3Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 4
Cached News: