Navigation Links
Climate Change Could Affect Monarch Butterfly's Migration, Study Says
Date:2/21/2013

THURSDAY, Feb. 21 (HealthDay News) -- Global climate change could have a profound impact on the migration pattern of the monarch butterfly, according to a new study.

These butterflies, which fly 2,000 miles south from North America to the mountains of Mexico every fall and back again in the spring, would simply keep flying south if they didn't feel chilly winter weather, researchers found.

The study was published Feb. 21 in the journal Current Biology.

"The monarchs need the thermal microenvironment at the overwintering sites for the migration cycle to persist. Without that thermal stimulus, the annual migration cycle would be broken and we will have lost one of the most intriguing biological phenomena in the natural world," explained Steven Reppert of the University of Massachusetts Medical School, in a journal news release. "This increased understanding will help us protect the migration."

In an earlier study, the researchers revealed monarchs use skylight cues and an internal compass to help guide them in their migration south. In this new study, the researchers found these navigation tools also help the butterflies return north.

To determine what triggers the monarchs to change direction, they captured a sample of butterflies as they were about to begin their fall migration south. In the lab the butterflies faced the same changes in temperature and light they would experience naturally in the Mexican mountains.

After 24 days in the lab, the butterflies were released and headed north -- not south, the researchers noted. But the butterflies that were captured and kept warm continued to fly south.

The study's authors confirmed the change in the monarch's direction was because of the cold temperatures, not day length. They suggested their findings shed light on the biological processes involved in monarchs' migration.

More information

The U.S. Environmental Protection Agency provides more information on climate change.

-- Mary Elizabeth Dallas

SOURCE: Current Biology, news release, Feb. 21, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Will Climate Change Mean Worse Flu Seasons?
2. Study shows climate change could affect onset and severity of flu seasons
3. Climate Change May Bring Another Mosquito-Borne Illness to U.S.
4. Most Accurate Climate Models Point to More Global Warming
5. Some like it hot: Tropical species not as vulnerable to climate change extinction
6. Climate concerns
7. Generation X is surprisingly unconcerned about climate change
8. Climate Change May Cut Cows Milk Production in South
9. Greater L.A. Heating Up, Climate Experts Predict
10. Climate Change Could Be Tough on Seniors Health: Study
11. Mesothelioma Victims Center Now Fears 85% of US Victims of Mesothelioma get Shortchanged so They Urge Victims to Call them for the Names of the Best Mesothelioma Lawyers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Climate Change Could Affect Monarch Butterfly's Migration, Study Says
(Date:3/24/2017)... , ... March 24, 2017 , ... “Vintage and Harvest ... retired minister and college Bible teacher residing in North Carolina with his wife, Anna ... have blessed them with six grandchildren. David is also the author of “Shadow and ...
(Date:3/24/2017)... ... ... “The Adventures of Joey, The Dog Who Barks at Puddles”: a boisterous story ... fullest, as God intended. “The Adventures of Joey, The Dog Who Barks at Puddles” ... passion for writing, especially about truth and human behavior. , Published by Christian Faith ...
(Date:3/23/2017)... ... 23, 2017 , ... A recent report from the National Council on Teacher ... NCTQ report suggests, based on a review of GPA and SAT/ACT requirements at 221 ... the U.S. It argues that this higher bar should be set by states, by ...
(Date:3/23/2017)... ... March 23, 2017 , ... Demonstrating their commitment to ... public health departments have been awarded national accreditation through the Public Health ... the expanding network of communities across the nation whose health departments meet rigorous ...
(Date:3/23/2017)... ... March 23, 2017 , ... PAINWeekEnd (PWE) Oklahoma City, on ... Avenue, will be an educational and exciting program providing busy clinicians and allied ... chronic pain. , Oklahoma is in a healthcare crisis. The state ranks 46th ...
Breaking Medicine News(10 mins):
(Date:3/23/2017)... Mosaic Life Care, based in St. Joseph, Missouri , ... network of 58 clinics, located in 22 cities, and its flagship St. Joseph Medical ... improve the delivery of health care to its patients, including the insurance, billing and ... ... Mosaic Life Care St. Joseph Medical Center ...
(Date:3/23/2017)... 2017  Transportation Insight, a multi-modal lead logistics solutions ... management firm with expertise serving clients in the food ... Zaffarano was named a 2017 Food Logistics ... the only publication exclusively dedicated to covering the movement ... "Rick has brought to Transportation Insight a wealth ...
(Date:3/23/2017)... 23, 2017 As a result of ... the prevalence of allergic diseases, cutting edge developments ... revolutionising the ways in which pharmaceutical and biotech ... promises to be both a high quality meeting ... interest groups, immunologists, research scholars and doctors. The ...
Breaking Medicine Technology: