Navigation Links
Mammals that hibernate or burrow less likely to go extinct
Date:1/28/2009

The best way to survive the ill-effects of climate change and pollution may be to simply sleep through it.

According to a new study published in The American Naturalist, mammals that hibernate or that hide in burrows are less likely to turn up on an endangered species list. The study's authors believe that the ability of such "sleep-or-hide" animals to buffer themselves from changing environments may help them avoid extinction.

The idea that sleepers and hiders may have a survival advantage first arose from a study of the fossil record conducted by Dr. Lee Hsiang Liow of the University of Oslo. That study found that sleep-or-hide mammals seem to last longer as species than other mammals.

In this latest study, Liow and colleagues from the Universities of Oslo and Helsinki wanted to see if this trend holds for mammals living today.

Using a database of over 4,500 living mammal species, Liow and his team identified 443 mammals that exhibit at least one sleep-or-hide behavior. Their list includes tunneling and burrowing animals like moles and chipmunks, as well as animals that can periodically lower metabolic rates like squirrels, bats and bears.

The sleep-or-hide list was then compared with "Red List" of threatened species compiled by the International Union for Conservation of Nature. As the researchers suspected, sleep-or-hide species are less likely appear in any of the IUCN's high-risk categories. The pattern holds even under controls for other traits that may influence extinction rates, such as body size (smaller animals generally have lower extinction rates) and geographic distribution.

Despite these results, sleepers and hiders shouldn't be viewed as evolutionary "winners," the authors say.

"Sleep-or-hide species survive longer, but in a changing world they run the risk of eventually becoming seriously obsolete," says Mikael Fortelius of the University of Helsinki, one of the study's authors. "Species that don't sleep or hide are short-lived, but they may be more likely to leave successful descendants.

"In a way it's the classic choice between security and progress."


'/>"/>

Contact: Kevin Stacey
kstacey@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert

Related biology news :

1. Engineers study brain folding in higher mammals
2. Burrowing mammals dig for a living, but how do they do that?
3. Why diving marine mammals resist brain damage from low oxygen
4. Researchers to develop ocean sanctuary noise budget to evaluate potential impact on marine mammals
5. Arctic marine mammals on thin ice
6. Bee species outnumber mammals and birds combined
7. Scientists find redesigned hammer that forged evolution of pregnancy in mammals
8. Effects of anthropogenic sound on marine mammals -- a research strategy
9. Researchers document worlds mammals in crisis
10. 7 Texas mammals listed as threatened on Global Mammal Assessment
11. Mammals can be stimulated to regrow damaged inner retina nerve cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/15/2016)... Germany , December 15, 2016 ... announced an agreement with NuData Security, an award-winning ... partnership will enable clients to focus on good customer experience, ... protection regulation. ... In order to provide a one-stop fraud prevention suite, ...
(Date:12/15/2016)... , Dec. 15, 2016 Advancements ... experience, health wellness and wellbeing (HWW), and ... in three new passenger vehicles begin to ... gesture recognition, heart beat monitoring, brain wave ... facial monitoring, and pulse detection. These will ...
(Date:12/12/2016)... CLEVELAND , Dec. 12, 2016  Researchers ... commercial possibilities for graphene by combining the material ... a highly sensitive pressure detector able to sense ... of a small spider.  The ... and can be read here:  http://science.sciencemag.org/content/354/6317/1257 ...
Breaking Biology News(10 mins):
(Date:1/18/2017)... ... January 18, 2017 , ... Thirty-six startup companies in ... by the Pennsylvania Department of Community and Economic Development in 2016 as part of ... in the University City Keystone Innovation Zone and represent the highest number of awards ...
(Date:1/18/2017)... , Jan. 18, 2017  HUYA Bioscience International, (HUYA), ... China,s pharmaceutical innovations, announced today a ... Innovation and Investment Company (referred to as CAS Innovation). ... innovations discovered by leading scientists at CAS to meet ... HUYA is the first company to have recognized ...
(Date:1/18/2017)... Jan. 18, 2017 /PRNewswire/ - SQI Diagnostics Inc. ... diagnostics company that develops and commercializes proprietary technologies ... the "Company"), today announced that Cameron Prange ... has resigned from its Board of Directors.  Mr. ... securities regulations that have limited both his ability ...
(Date:1/17/2017)... ... January 17, 2017 , ... LGC Maine Standards ... VALIDATE® SP2 calibration verification / linearity test kit. VALIDATE® SP2 evaluates Albumin, C-reactive ... SP2 kit is prepared using the CLSI recommended “equal delta” method for linearity ...
Breaking Biology Technology: