HOME >> BIOLOGY >> NEWS
Reproductive speed protects large animals from being hunted to extinction

DURHAM, N.C. -- The slower their reproductive cycle, the higher the risk of extinction for large grazing animals such as deer and antelope that are hunted by humans.

The oft-cited causes of habitat loss and living in a limited geographic area also are significant risks for extinction of a species, but under hunting pressure it's reproductive speed that really matters, according to a new statistical analysis by evolutionary biologist Samantha Price, a postdoctoral fellow at the National Evolutionary Synthesis Center in Durham.

This key variable helps explain, for example, why the American bison was nearly wiped out in just a few years of intense hunting pressure with relatively slight habitat change while the white-tailed deer continues to grow in number despite hunting and suburban sprawl. The bison nurses its young for 283 days on average; the deer just 80, Price notes.

Price reported her findings online Wednesday, May 16, in the journal Proceedings of the Royal Society B. The work, supported by the National Science Foundation, is an offshoot of her Ph.D. dissertation at the University of Virginia.

Price did a complex statistical analysis of 144 species of hoofed mammals, including pigs, llamas, cattle, sheep, goats and antelopes, combining a global list of threatened species with data on hunting, land use and the animals' reproductive rates.

Where hunting isn't a factor, habitat loss is the biggest issue. But whether the threat comes from hunting or habitat destruction, extinctions such as this are "all human-caused at some level," Price said.

The worst-case scenario, she said, is where humans are expanding into an area and changing its habitat, and hunting the indigenous animals as they go. Three areas of the world -- West Africa, Indonesia and Malaysia, and South America -- are "hot spots" for hunting, and many species in these areas are threatened.

"The poorer the country, the greater the
'"/>

Contact: Karl Leif Bates
karl.bates@duke.edu
919-681-8054
Duke University
15-May-2007


Page: 1 2

Related biology news :

1. See what youre spewing as you speed along
2. What determines the speed at which birds fly?
3. Molecular motors may speed nutrient processing
4. Researchers develop way to calculate speed of bacterial sex
5. Lab-on-a-chip device from Berkeley Lab to speed proteomics research
6. Whiteflies and plant viruses can help each other to speed up biological invasion
7. MIT: Engineered yeast speeds ethanol production
8. Engineered yeast speeds ethanol production
9. Scientists uncover speedometer for crystal growth controlled by biomolecule properties
10. Lab-on-a-chip could speed up treatment of drug-resistant pneumonia
11. In young rats, researchers find a reaction to spinal cord injury that speeds recovery

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


(Date:6/28/2020)... (PRWEB) , ... June 25, 2020 , ... In an ... on innovations in accelerated Point of Care Testing solutions (POCT). Check local listings for ... are collected at medical offices and are shipped to labs throughout the country. Results ...
(Date:6/23/2020)... Md. (PRWEB) , ... June ... ... leading provider of gene-to-protein and monoclonal antibody development services, today announced that ... protein-based products and services to the pharmaceutical, diagnostics, and research industries. The ...
(Date:6/23/2020)... ... , ... The field of quantitation of large molecules or proteins has been ... However, the use of mass spectrometry in this field has gained a lot of ... you choose which approach to use (LBA or MS)?” In many cases, either ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... , ... July 29, 2020 , ... ... of the top radiation centers in 16 countries, has reached its 20th anniversary ... is now in routine use at top universities including University of Pennsylvania, University ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... in the early detection and prevention of high-burden diseases, and Centric Consulting, a ... and healthcare organizations to utilize existing data in order to identify and prioritize ...
(Date:7/10/2020)... , ... July 09, 2020 , ... ... cell therapy, today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as ... oversee the clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves ...
(Date:7/1/2020)... ... June 30, 2020 , ... ... that the launch of a new clinical diagnostics immuno-oncology service, TissueInsight ... microenvironment (TME). , “Flagship’s TissueInsight is a service that aids pathologists, oncologists, ...
Breaking Biology Technology:
Cached News: