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:3/28/2017)... ... 2017 , ... Award-winning medical group Allied Anesthesia today announced ... chair for Orange County health care system CalOptima Friday. CalOptima announced its election ... Mark Refowitz’s term, which runs through June 30 of this year, until another ...
(Date:3/28/2017)... ... March 28, 2017 , ... In its ... Success website has recently developed and published an informational resource that addresses frequently ... based on common inquiries the site’s team of third party administrator (TPA) contributors ...
(Date:3/28/2017)... CA (PRWEB) , ... March 28, 2017 , ... ... Carson Liu of SkyLex Advanced Surgical, Inc. is thrilled to offer the recently ... balloon procedure, and this procedure adds to SkyLex Advanced Surgical’s already comprehensive ...
(Date:3/28/2017)... ... , ... Oily skin is a common and unwelcomed occurrence in people of all ages, genders ... offer to the discussion of dealing with excess skin oil. “Oily skin is a challenge ... that can help remove the oily shine while keeping the skin fresh and clean,” says ...
(Date:3/27/2017)... ... 27, 2017 , ... New patients who have sleep apnea in ... or without a referral. Sleep apnea is often left untreated because patients are not ... and chronic snoring. , Dr. Braasch seeks to raise awareness of sleep apnea ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... , March 27, 2017  Sanderling Ventures, portfolio ... Ethicon, a division of Johnson & Johnson. Torax manufactures ... the treatment of gastro-esophageal reflux disease (GERD). The ... (MSA) technology and the procedure is currently available ... Torax Medical was founded by Sanderling Ventures, ...
(Date:3/27/2017)... FinancialBuzz.com News Commentary  ... According to a new report by Arcview Market Research, the ... 34 percent to $6.7 billion and can be expected to grow at ... five years, from $6.7 billion in 2016, to $22.6 billion in 2021. ... to purchase cannabis without a doctor,s recommendation. Voters in California ...
(Date:3/27/2017)... 2017 The staggering cost of cancer treatment ... access to the latest treatment options against cancer. Even ... patients have inadequate or no health insurance and are ... Access to modern cancer treatment is almost non-existent for ... The mission statements of pharmaceutical and biotech companies ...
Breaking Medicine Technology: