Navigation Links
Climate change could trigger 'boom and bust' population cycles leading to extinction

Climate change could trigger "boom and bust" population cycles that make animal species more vulnerable to extinction. , according to Christopher C. Wilmers, an assistant professor of environmental studies at the University of California, Santa Cruz.

Favorable environmental conditions that produce abundant supplies of food and stimulate population booms appear to set the stage for population crashes that occur when several "good years" in a row are followed by a bad year. "It's almost paradoxical, because you'd think a large population would be better off, but it turns out they're more vulnerable to a drop in resources," says Wilmers.

Understanding how environmental changes influence fluctuations in animal populations is crucial to predicting and mitigating the influence of global climate change. In a paper that appears in the May issue of The American Naturalist, Wilmers describes a powerful new mathematical model that evaluates how climate and resources interact with populations, including a fine-grained analysis of impacts on juveniles, reproducing adults, and adults.

In areas where climate change leads to more "good years," with the occasional poor year still occurring, populations will fluctuate dramatically and be more prone to extinction as a result, said Wilmers. Highly prolific species will be particularly vulnerable to such fluctuations because their populations will build up most rapidly, noted Wilmers, a vertebrate conservation ecologist. Dramatic population fluctuations make species more vulnerable to extinction due to disease, inbreeding, and other causes; in addition, each crash reduces the genetic diversity of a species, lowering its ability to adapt and making it more prone to extinction.
'"/>

Source:University of Chicago Press Journals


Page: 1

Related biology news :

1. Climate model links higher temperatures to prehistoric extinction
2. Climate change will affect carbon sequestration in oceans, model shows
3. Climate change: The rice genome to the rescue
4. Climate change drives widespread amphibian extinctions
5. Climate change has surprising effect on endangered naked carp
6. Climate experts search for answers in the oceans
7. Climate change creates dramatic decline in red-winged black bird population
8. Climate change impacts stream life
9. Climate change was the cause of Neanderthal extinction in the Iberian Peninsula
10. Elusive HIV shape change revealed; Key clue to how virus infects cells
11. Researchers trace evolution to relatively simple genetic changes
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/1/2016)... , Feb. 1, 2016  Today, the first day ... announced plans to develop a first of its kind ... of IBM Watson. In the first application of ... (NYSE: IBM ), and Welltok will create a ... assessments with cognitive analytics, delivered on Welltok,s health optimization ...
(Date:1/25/2016)... Jan. 25, 2016   Unisys Corporation (NYSE: UIS ... F. Kennedy (JFK) International Airport, New York City ... identify imposters attempting to enter the United States ... them. pilot testing of the system at Dulles ... terminals at JFK during January 2016. --> pilot testing ...
(Date:1/21/2016)... January 21, 2016 ... new market research report "Emotion Detection and Recognition Market by ... Tools (Facial Expression, Voice Recognition and Others), Services, ... forecast to 2020", published by MarketsandMarkets, the global ... reach USD 22.65 Billion by 2020, at a ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... , Feb. 11, 2016   BioInformant announces ... "Stem Cell Research Products, Opportunities, Tools, and Technologies – ... The ... the stem cell industry, BioInformant has more than a ... stem cell market, by stem cell type. This powerful ...
(Date:2/10/2016)... /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ), a ... Mitsui & Co. Ltd., its partner in the ... investing an additional CDN$25 million in the joint venture ... 30% to 40%.  Mitsui will also play a stronger ... Sarnia , providing dedicated resources alongside ...
(Date:2/10/2016)... , Feb.10, 2016 ASAE is introducing a ... Management Companies (AMC) the option of joining or renewing ... fee determined by staff size, every employee in any ... ASAE and reap all available member benefits.   ... new organizational membership options will allow organizations of any ...
(Date:2/10/2016)... , Feb. 10, 2016  Matchbook, Inc., a ... fast growing biotech companies, announced today the appointment ... Strategic Advisor. Jim brings nearly 25 years of ... procurement, having spent nearly two decades in executive ... and Procurement at Genzyme and, most recently headed ...
Breaking Biology Technology: