HOME >> BIOLOGY >> NEWS
Tiny pikas seem to be on march toward extinction in Great Basin

The tiny rabbit-like American pika, an animal species considered to be one of the best canaries in a coal mine for detecting global warming in the western United States, appears to be veering toward the brink of extinction in the Great Basin.

New research indicates the small mammals, which are very sensitive to high temperatures, are being pushed upward in their mountain habitat and are running out of places to live. Climate change and human activities appear to be primary factors imperiling the pika, reports University of Washington archaeologist Donald Grayson in the current issue of the Journal of Biogeography.

Grayson's research which looks at a 40,000-year record of archaeological and paleontological sites, combined with yet unpublished work by several other researchers, paints a bleak future for the American pika (Ochotona princeps) in the Great Basin.

"Human influences have combined with factors such as climate change operating over longer time scales to produce the diminished distribution of pikas in the Great Basin today. This makes controlling our current impacts on them all that more important," said Grayson.

Human activities that appear to impact the animals include the proximity of roads to their habitat and pressure from grazing livestock.

The animals are isolated in patches across mountainous areas in western North America, from the southern Sierra Nevada and Rocky mountains to central British Columbia in Canada. In the Great Basin, these mountains are separated by large valleys with desert-like conditions that pikas can't tolerate. Pikas live in rock-strewn talus slopes that provide them with air-conditioning from hot temperatures and protection from predators.

Grayson's analysis of 57 well-dated archaeological sites, dating as far back as 40,000 years, shows that pikas have been pushed to higher and higher elevations. During the late Pleistocene and early Holocene epochs, 40,000 to about 7,500 yea
'"/>

Contact: Joel Schwarz
joels@u.washington.edu
206-543-2580
University of Washington
29-Dec-2005


Page: 1 2

Related biology news :

1. Penguins march into new park
2. Who gives stem cells their marching orders?
3. Bursts of waves drive immune system soldiers toward invaders
4. A decisive step toward a cure for insulin dependent diabetes
5. Cloned pigs help scientists towards a breakthrough in Alzheimers
6. Paving the way toward a vaccine against Alzheimers disease
7. Latest strategies for moving research toward a cure for diabetes explored at global scientific forum
8. Progress toward a targeted therapy for a specific form of leukemia
9. Tiny clue reveals new path toward heart disease
10. Progress toward artificial photosynthesis?
11. MIT engineer works toward clean water, more

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


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: