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:8/18/2017)... ... 2017 , ... “Emotions are sacred, valid, honored, encouraged. This is the memo ... Generation Mindful. To help change the mindset of parents and educators from punitive to ... the Time-In Toolkit, which launched on Kickstarter 3 weeks ago and fully funded in ...
(Date:8/18/2017)... ... August 18, 2017 , ... Alcovit, a lime-flavored beverage that ... its marketing efforts with its product now available through Jet.com. , After 25 ... The effervescent powdered drink is designed to quickly detox the body thereby avoiding alcohol-induced ...
(Date:8/18/2017)... (PRWEB) , ... August 18, 2017 , ... “Our Mountains ... potent tale of a couple that grew stronger together through the faith they shared ... Faith Through Trials” is the creation of published author, Barbara J. Corcoran, a retired ...
(Date:8/18/2017)... , ... August 18, 2017 , ... “Beyond Our Imaginations: ... life. “Beyond Our Imaginations: The Infinite God” is the creation of published author, Mark ... the country. , Lawrence shares, “The problem with becoming a greater man of God ...
(Date:8/18/2017)... , ... August 18, 2017 , ... “Kingdom Mandate for ... the Kingdom. “Kingdom Mandate for Kingdom Builders” is the creation of published author, ... moved to Eastern Europe as a missionary in 1983. He spent three decades ...
Breaking Medicine News(10 mins):
(Date:8/7/2017)... 7, 2017  Diplomat Pharmacy, Inc. (NYSE: DPLO), the nation,s ... ended June 30, 2017.  All comparisons, unless otherwise noted, are ... Second Quarter 2017 Highlights include: ... million, an increase of 3.5% Total prescriptions ... margin of 7.5% versus 7.6% Gross ...
(Date:8/4/2017)... 2017 The search for test results that ... consult has long been the goal of healthcare providers ... of the largest meeting of lab professionals and IVD ... research firm Kalorama Information.  The firm said scores of ... related supplies and software were at the American Association ...
(Date:8/3/2017)...  Opioid addiction and other drugs of abuse, blood ... threatening outcomes, were problems taken on directly as laboratory ... support them, met this week. This according to Kalorama ... of abuse, procalcitonin and acute kidney injury were key ... meeting in San Diego, CA. ...
Breaking Medicine Technology: