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:2/2/2017)... TOKYO , Feb. 1, 2017  Central ... innovative and meaningful advances worldwide, The Japan Prize ... Japan Prize, who have pushed the envelope in ... Information and Communication. Three scientists are being recognized ... outstanding achievements that not only contribute to the ...
(Date:1/30/2017)... Jan. 30, 2017   Invitae Corporation (NYSE: ... genetic information companies, today announced that it will report ... provide 2017 guidance on Monday, February 13, 2017, and ... day at 4:45 p.m. Eastern / 1:45 p.m. Pacific. ... will briefly review financial results, guidance, and recent developments ...
(Date:1/25/2017)... , Jan. 25, 2017 The Elements ... Management (IAM) lifecycle is comprised of a comprehensive ... the purpose of maintaining digital identities and providing ... and applications. There are significant number of programs ... time to time by optimizing processes and changing ...
Breaking Biology News(10 mins):
(Date:2/21/2017)... San Francisco, CA (PRWEB) , ... February 21, ... ... is pleased to announce that Dr. Trevor Heritage has joined its executive team ... a revolutionary system designed to provide insights to help improve the diagnosis and ...
(Date:2/21/2017)... (PRWEB) , ... February 21, 2017 , ... ... GMP cell therapy manufacturing facility at its headquarters laboratory in Poway, California. ... utilizing the experience of both in-house personnel and consultants, VetStem constructed and validated ...
(Date:2/21/2017)... a returning partner of the Amgen Tour of California , ... of the men,s and women,s events for the next five editions ... of California will mark the start of ... cycling teams in the world racing from Northern to ... from Heart Disease TM Women,s Race empowered with SRAM ...
(Date:2/21/2017)... 2017   Invitae Corporation (NYSE: NVTA), one ... that members of the company,s management team will present ... Conference on Monday, March 6, 2017 at approximately 4:00 ... Boston, Massachusetts . The live, ... visiting the investors section of the company,s website at ...
Breaking Biology Technology: