Navigation Links
Study shows species can change
Date:12/8/2011

A study of South American songbirds completed by the Department of Biology at Queen's University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very little genetic differences which indicates they are on the road to becoming a new species.

"One of Darwin's accomplishments was to show that species could change, that they were not the unaltered, immutable products of creation," says Leonardo Campagna, a Ph.-D biology student at the Argentine Museum of Natural History in Buenos Aires, who studied at Queen's as part of his thesis. "However it is only now, some 150 years after the publication of his most important work, On the Origin of Species, that we have the tools to begin to truly understand all of the stages that might lead to speciation which is the process by which an ancestral species divides into two or more new species."

For decades scientists have struggled to understand all of the varied forces that give rise to distinct species. Mr. Campagna and his research team studied a group of nine species of South American seedeaters (finches) to understand when and how they evolved.

The study found differences in male reproductive plumage and in some key aspects of the songs that they use to court females. Now, the group is looking to find the genes that underlie these differences, as these so-called candidate genes may well prove to be responsible for the evolution of a new species. This will allow researchers to gain insights into evolution.

"Studies like ours teach us something about what species really are, what processes are involved and what might be lost if these and other species disappear."
'/>"/>

Contact: Anne Craig
anne.craig@queensu.ca
613-533-2877
Queen's University
Source:Eurekalert

Page: 1

Related medicine news :

1. Study sheds light on cancer burden in Australia
2. NEJM publishes study showing LigoCytes norovirus vaccine demonstrates protection against illness
3. Avastin Boosted Survival for Type of Aggressive Breast Cancer: Study
4. Behavior of people faced with health-care choices is not influenced by framing effect, study finds
5. Marathons May Damage Part of Heart: Study
6. Study finds side effects, complications, mastectomy more likely after partial breast irradiation
7. Reusing pacemakers from deceased patients is safe and effective, study finds
8. New study reassures on heart risks of prostate cancer treatment
9. Mammograms Cut Risk of Breast Cancer Death by Half, Study Finds
10. UCSF study finds medical marijuana could help patients reduce pain with opiates
11. Best Antidepressant May Depend on Patient: Study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/25/2017)... ... April 25, 2017 , ... ... agreement to be the preferred physical therapy provider for Derby City CrossFit, effective ... Derby City CrossFit as quickly and effectively as possible, ProRehab’s sports physical therapists ...
(Date:4/25/2017)... ... April 25, 2017 , ... A recent ... test score performance for the 2015-16 school year across Wisconsin’s public schools, charter ... it highlights important patterns in student test score performance, the report’s limited analyses ...
(Date:4/25/2017)... ... April 25, 2017 , ... As ... contracted partners to help with process innovation in drug formulation and manufacturing. ... along with state-of-the-art analytical equipment in support of their development and manufacturing goals. ...
(Date:4/25/2017)... ... April 25, 2017 , ... Saad B. Chaudhary, MD is committed to providing the highest ... chronic problems, I focus on preventative care with all my patients to alleviate possible future ... always feel free to contact my office and my trained staff will assist you in ...
(Date:4/25/2017)... ... April 25, 2017 , ... Vetoquinol USA® , a ... UCII, part of the EQUISTRO line, at this week’s Rolex Kentucky Three-Day Event ... the immunologic level. , The scientifically-developed Flexadin UCII supports the body’s normal repair ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... Research and Markets has announced the addition of the ... Outlook, Growth Trends, Key Players, Competitive Strategies and Forecasts, 2014 ... ... US$ 7,167.6 Mn in 2015, and is expected to reach ... 5.6% from 2016 to 2024. The global ...
(Date:4/19/2017)... /PRNewswire/ - CRH Medical Corporation (TSX: CRH) (NYSE MKT: CRHM) (the "Company"), announces ... Investor Conference 2017 at the Sheraton Hotel in Toronto, ... Officer of the Company is scheduled to present on Tuesday, May ... and the Chairman of the Board, Tony Holler will ... For ...
(Date:4/19/2017)... 2017 Global Surgical Drainage Device Market: Overview ... to remove excess liquid and air. The fluid to ... or lymph. Surgical drains are used in a wide ... surgery, cardiovascular surgery, neurosurgery, plastic surgery etc. Common use ... accumulation of fluid e.g. blood or pus. Surgical drains ...
Breaking Medicine Technology: