Navigation Links
The mechanics of speciation
Date:6/24/2011

Mate choice, competition, and the variety of resources available are the key factors influencing how a species evolves into separate species, according to a new mathematical model that integrates all three factors to reveal the dynamics at play in a process called sympatric speciation.

Titled "Factors influencing progress toward sympatric speciation," the paper appears in today's edition of the Journal of Evolutionary Biology.

New species more commonly occur when plants or animals cannot interbreed because of strong mate choice, and therefore they become isolated genetically. A less common type of speciation, called "sympatric," occurs when a new species arises from a single population that has no geographic or physical barriers. A famous example is the Rhagoleitis pomonella fruit fly that originally feasted on the fruit of hawthorn trees, then shifted and began to feed on apples, evolving into a more genetically distinct type of fly.

The new model integrates three key factors that can lead to sympatric speciation: the degree to which male foraging traits influence female mate choice, the degree to which different individuals compete for resources, and the variety of resources available. By incorporating three different factors together, the study's authors, Xavier Thibert-Plante, a postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis, and Andrew P. Hendry, an associate professor at McGill University, have taken a different more inclusive approach than in previous studies, which examine one or a few primary factors.

"This way we can consider the effects of multiple factors and their interactions simultaneously. At the very least, having a variety of resources available in the model is a productive way of generating insights into biological diversity," Thibert-Plante said.

According to the results, competition was much less important factor for sympatric speciation to occur than strong mate choice and the variety of resources available.

Yet, even under ideal conditions, sympatric speciation occurred only a fraction of the time in the model. But that does not mean sympatric speciation is not impossible in nature, the authors argue. "Mate choice allows the population to specialize to different resources and become reproductively isolated," Thibert-Plante said.


'/>"/>

Contact: Catherine Crawley
ccrawley@nimbios.org
865-974-9350
National Institute for Mathematical and Biological Synthesis (NIMBioS)
Source:Eurekalert

Related biology news :

1. Researchers get a first look at the mechanics of membrane proteins
2. Scientists unravel the mysterious mechanics of spider silk
3. The biomechanics of information
4. New microscopy technique reveals mechanics of blood cell membranes
5. Scientists find quantum mechanics at work in photosynthesis
6. Sandia, SES win Popular Mechanics Breakthrough Innovator Award
7. Emergence of fungal plant diseases linked to ecological speciation
8. Emergence of fungal plant diseases linked to ecological speciation
9. Paper offers new insights into the genomics of speciation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
(Date:5/3/2016)...  Neurotechnology, a provider of high-precision biometric identification ... Identification System (ABIS) , a complete system for ... can process multiple complex biometric transactions with high ... face or iris biometrics. It leverages the core ... MegaMatcher Accelerator , which have been used in ...
(Date:4/28/2016)... April 28, 2016 First quarter 2016:   ... 966% compared with the first quarter of 2015 The ... 589.1 M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) ... guidance is unchanged, SEK 7,000-8,500 M. The operating margin ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... CA (PRWEB) , ... May 26, 2016 , ... ... and manufacturing company, today announced several positive developments that position the Company for ... a result of the transaction, Craig F. Kinghorn has been appointed Chairman of ...
(Date:5/25/2016)... ... May 25, 2016 , ... Thailand’s Board of Investment’s New ... San Francisco. Located at booth number 7301, representatives from the Thai Government, research ... the Thai biotechnology and life sciences sector. , Deputy Secretary General of ...
(Date:5/25/2016)... (PRWEB) , ... May 25, 2016 , ... ... for information (RFI) issued by the Office of the National Coordinator for Health ... experience, and determines if clinically relevant data were available when and where it ...
(Date:5/25/2016)... FL (PRWEB) , ... May 25, 2016 , ... Lady ... eight she tore her cruciate ligament in her left knee. Lady’s owner Hannah sought ... a central Florida board-certified veterinary surgeon, to repair her cruciate ligament and help with ...
Breaking Biology Technology: