Navigation Links
Study reveals how monarch butterflies recolonize northern breeding range
Date:3/19/2012

Each year, millions of monarch butterflies (Danaus plexippus) migrate from overwintering grounds in central Mexico to colonize eastern North America, but just how these delicate creatures manage to reach the northern part of their breeding range in spring has largely remained a mystery.

Monarch ButterflyNew research from the University of Guelph led by Prof. Ryan Norris, Department of Integrative Biology, former graduate student Nathan Miller and Environment Canada, reveals how monarchs recolonize the northern reaches of their breeding grounds information that will help preserve this migratory species threatened by loss of critical food and habitat.

Every year, adult monarchs head north to lay eggs on milkweed plants in the United States. Subsequent generations continue north to reproduce, some eventually reaching southern Canada.

But this amazing migration has been declared "threatened" by the International Union for the Conservation of Nature. Because of milkweed destruction, the monarch butterfly has remained on Canada's list of species of "special concern" since 1997.

Norris said scientists need to learn more about the butterfly's migration to forecast how it will respond to environmental change such as habitat loss.

"It wasn't clear where these individuals were born and how long they lived," he said. "One possibility was that some monarchs that reach places like southern Ontario could have migrated all the way from Mexico."

Miller sampled monarchs from 44 sites across Ontario and the northern states. By analyzing chemical markers called stable isotopes and examining wing wear, the researchers found that about 10 per cent reaching the northern breeding range in the spring come directly from Mexico.

"This is an incredible journey from an animal this size, especially if you consider that these butterflies are little more than eight months old and have travelled thousands of kilometres over
'/>"/>

Contact: Ryan Norris
rnorris@uoguelph.ca
519-824-4120 x56300
University of Guelph
Source:Eurekalert

Page: 1 2

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... Markets ( http://www.researchandmarkets.com/research/kvdtcw/face_and_voice ) has announced the addition of ... report to their offering. This report analyzes the ... the following Segments: Face Biometrics, and Voice Biometrics. The report provides ... Japan , Europe , ... Africa , and Latin America ...
(Date:3/24/2015)... GARDENS, Fla. , March 24, 2015 /PRNewswire/ ... identity management solutions, today announced that its U.are.U ... clothing accessory retailer Goorin Bros . to ... Crossmatch biometrics-based solution secures access to the POS ... the increased risk of data breaches. ...
(Date:3/23/2015)... 2015   HOYOS Labs , a leading global ... that the Company will demonstrate multiple biometrics-based technologies under ... at Connect:ID on March 23 through 25, 2015, in ... highlight the IEEE Biometric Open Protocol Standard; free biometrics-based ... access control system. BOPS was invented by HOYOS Labs ...
Breaking Biology News(10 mins):Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3
... 27, 2007 454 Life Sciences, a Roche company, ... used the companys Genome Sequencer FLX system to sequence ... The study, entitled "Whole-Genome Shotgun Sequencing of Mitochondria from ... in the journal Science. The study describes a ...
... Tenn., Sept. 27, 2007 -- An international collaboration ... has performed the first-ever atomic-detail computer simulation of ... Smith, who leads ORNL,s Center for Molecular Biophysics, ... require the capabilities of the Office of Science,s ...
... based at the University of Pittsburgh have created the ... a single molecule wide, a significant step in science,s ... devices to the single molecule scale and provide smaller, ... published online today in the Journal of the American ...
Cached Biology News:454 Sequencing: Science paper describes a novel, highly efficient method of sequencing ancient DNA 2Interacting protein theory awaits test from new neutron analysis tools 2
(Date:3/25/2015)... Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; OTCQX: ... with certain shareholders representing approximately 45% of the outstanding ... certain matters including the appointment of auditors at its ... 2015 (the "Meeting") it intends to adjourn the Meeting ... when the Meeting reconvenes. The Meeting will be reconvened ...
(Date:3/25/2015)... Hills, IL (PRWEB) March 25, 2015 ... Cole-Parmer® Symmetry® Top-Loading Balances and Analytical Balances to ... The expanded line of weighing balances from the ... Precision Toploading Balances increase your efficiency by ... a variety of samples. Weighing modes include parts ...
(Date:3/25/2015)... , March 25, 2015  Point-of-Care Partners, ... management consulting firm, has launched the ePrescribing State ... simplify tracking of ePrescribing regulatory requirements in all ... ePrescribing regulatory landscape continues to change rapidly, so ... what the industry, and ultimately patients, need," said ...
(Date:3/25/2015)... and the HAGUE, Netherlands , March ... of LES Stimulation therapy for chronic gastro-esophageal reflux disease ... Surgery [ Surgery . 2015; 157(3):556-567 ], ... minimally-invasive therapy. The study included 25 ... 11 years and taking prescribed daily proton pump inhibitor ...
Breaking Biology Technology:SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 2SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 4SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 5New Economical Top-Loading and Analytical Symmetry Balances from Cole-Parmer 2Point-of-Care Partners Launches the ePrescribing State Law Capsule 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 3
... SHANGHAI, Sep. 4 /PRNewswire-Asia-FirstCall/ -- China-Biotics, ... a leading Chinese firm,specializing in the manufacture, research, ... that the Company,s,management team will attend the Susquehanna ... Summit. , The SIG ...
... , , SEATTLE, Sept. 4 ... Man event this year in the Black Rock Desert, partiers will see ... The huge banner, which has already flown over Seattle Hempfest and ... the question "Want Big, Sugary Buds?" , , The ...
... 3 Idenix Pharmaceuticals, Inc. (Nasdaq: IDIX ) ... the upcoming Thomas Weisel Partners Healthcare Conference 2009 on Wednesday, ... Seasons Hotel in Boston, Massachusetts, and at the Morgan Stanley ... 3:55 p.m. ET at the Grand Hyatt Hotel, New York. ...
Cached Biology Technology:China-Biotics, Inc. to Attend the SIG 3rd Annual Beijing Management Summit 2Nevada Burning Man Festival Sees Giant Aerial Marijuana Bud Banner That Protests Hydroponics Hijacking 2Nevada Burning Man Festival Sees Giant Aerial Marijuana Bud Banner That Protests Hydroponics Hijacking 3
HLA-DRbeta (DA2)...
Bovine Coronary Artery Endothelial Cells (BCAEC) (>500,000 cells)...
... This NPY Y2 antibody has been ... currently being characerized in brain. The antibody has ... appears to work better on mose tissue, although ... characterizarion in dorsal root ganglion and spinal cord ...
... allows the Thermo-Fast® 96 ... PCR plates to be ... PRISM® 3700 capillary sequencer. ... information on the software ...
Biology Products: