| Services |
|
|
|
|
 |
|
| News |
|
|
|
|
|
|
|
|
|
| Channels |
| Home & Family |
|
|
|
|
|
|
|
| Leisure |
|
|
|
|
| Technology |
|
|
|
|
|
| Business |
|
|
|
|
| Science |
|
|
|
|
|
|
|
|
|
|
Site Search  |
|
|
|
|
| Free email |
|
|
|
|
 |
Insect population growth likely accelerated by warmer climate |
| TheAllINeed.com |
(NC&T/UW) It appears that insect species that adapt to warmer climates also will increase their maximum rates of population growth, which UW researchers say is likely to have widespread affects on agriculture, public health and conservation.
Many studies have shown that insects readily adapt to the temperature of their environment. For example, those living in deserts easily tolerate high temperatures but are much less tolerant of cold temperatures than insects living in mountains. Now UW biology researchers have found that insect species that have adapted to warmer environments also have faster population growth rates. The research shows, in effect, that "warmer is better" for insects, said Melanie Frazier, a UW biology doctoral student.
"Enhanced population growth rates for butterflies might be a good thing, but enhanced growth rates for mosquito populations is much more dubious," said Frazier, who is lead author of the new research, published in the October edition of the journal The American Naturalist.
Co-authors are Raymond Huey, a UW biology professor, and David Berrigan, a former UW biology researcher now with the National Cancer Institute.
The findings suggest that evolutionary adaptation to climate warming will have profound ecological effects because rates of population growth eventually will alter entire ecosystems, Frazier said. In addition, key ecosystem characteristics such as species diversity and food webs are very sensitive to the population growth rates of the species living and interacting in those ecosystems.
She noted that biochemical adaptation to warmer temperature is not the only possible insect response to climate warming. Some species might evade warmer temperatures by moving to cooler habitats, or they might alter their seasonal activity patterns. Others might not be able to adapt adequately and could become extinct. But those that do adapt should have elevated rates of population growth.
"No matter which scenario plays out for a given species, local ecosystems will be profoundly altered," Frazier said.
|
| About the Author |
©2006 All rights reserved
|
 Click here to see related videos
|
|
| Quotes | Have you seen a tall, lanky dufus with a bird face and hair like the bride of Frankenstein?-Elaine, describing Kramer
Having major planets disappear is always a bad sign.- Jim Blinn
Great minds have purposes, others have wishes.- Washington Irving
Great spirits often meet violent opposition with mediocre minds - Albert Einstein
|
| Writers | | If you are a writer and want to see your article published at Theallineed.com, just click here to submit. |
|
Detroit Clinic Owner, Doctor and Office Manager Indicted in Medicare Infusion Fraud Scheme
Cell phones give you so many benefits for communication