HOME >> BIOLOGY >> NEWS
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.


'"/>

Contact: Patricia Morse
pmorse@press.uchicago.edu
773-702-0446
University of Chicago Press Journals
16-Apr-2007


Page: 1

Related biology news :

1. Climate change isolates Rocky Mountain butterflies
2. Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
3. Climate change reduces Queenslands bat numbers
4. Climate change signal detected in the Indian Ocean
5. Climate change threatens wild relatives of key crops
6. Climate policy: Its good to be in the RED
7. Climate change impacts stream life
8. Climate change a threat to Indonesian agriculture, study says
9. Climate changes brews trouble for marine life in European Seas, Marine Board-ESF report says
10. Granthams to fund Institute for Climate Change at Imperial College London
11. Climate changes, Cod collapse have altered North Atlantic ecosystems

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


(Date:1/8/2019)... ROSKILDE, Denmark and RALEIGH, N.C. (PRWEB) , ... ... ... leader in micro acoustic and micro mechanical technologies and solutions for hearing instruments ... sensor technology, today announced BiometRIC, the first ever hearing aid receiver in canal ...
(Date:1/4/2019)... ... January 02, 2019 , ... Lifecycle Biotechnologies announces ... life science tools and service supplier turned 40 in 2018 and for the ... features not just part numbers like most catalogs, but rather, insightful information into ...
(Date:12/27/2018)... FRANCISCO (PRWEB) , ... December 27, 2018 , ... ... annual Microbiome Conference at JPM as part of the JP Morgan 37th Annual ... innovative scientists and physicians, and members of the investment community. , Since ...
Breaking Biology News(10 mins):
(Date:12/10/2018)... ... December 10, 2018 , ... ... Contract Development and Manufacturing Organization (CDMO) with sites in China and the ... manufacturing, and aseptic fill finish solutions for monoclonal antibody (mAb) and antibody-drug ...
(Date:12/5/2018)... ... ... The incredible life story of former refugee and LG Sonic CEO Yousef ... the European Commissioner for Research and Innovation. , In his November 27th speech ... spoke at length of Yousef’s life and journey, citing the man who convinced him ...
(Date:12/5/2018)... Va. and LONDON (PRWEB) , ... ... ... Research Group (ARG), an established North American full-service contract research organization (CRO), ... Effective immediately, the transaction significantly strengthens ARG’s reach and experience in the ...
(Date:11/28/2018)... ... November 28, 2018 , ... Earlier this month, Lajollacooks4u's ... as well as experience the height of truffle season. , Her first ... pristine countryside. Staying in the exclusive Black Truffle Lodge in the small mountain village ...
Breaking Biology Technology:
Cached News: