Navigation Links
Predators and parasites may increase evolutionary stability
Date:10/26/2007

Stillwater, Okla. October 26, 2007 A new study explores the role of natural enemies, such as predators and parasites, for mixed mating, a reproductive strategy in which hermaphroditic plants and animals reproduce through both self- and cross-fertilization. The findings highlight the possible evolutionary consequences of these interactions.

Mating systems are a complex set of traits that reflect interactions among genetics, population structure, demography, and numerous environmental factors that influence mating success. These traits have profound consequences for genetic variation. Plants and animals display a dramatic range of mating systems, including mixed mating.

The mechanism by which enemies are transmitted between individuals is also found to have a significant effect on outcrossing, the process by which new genetic material is introduced into a breeding line. This provides an ideal model for the study of evolution.

The findings show that natural enemies likely play a significant role in the evolutionary stability of a particular reproductive strategy and may influence the mating systems of their victims (the plants and animals they affect) by altering interactions between victims and other ecological community members. For example, enemies may alter the availability of mates in a population, which may have direct consequences for victim mating system evolution. Enemies may also influence the expression of traits that are important for mating system evolution, thereby improving the evolutionary stability of mixed mating as a reproductive system.

Consideration of natural enemies has added a new dimension to our understanding of mating system evolution in both plants and animals, says Janette A. Steets, lead author of the study. Although theoretical and empirical evidences are just beginning to accumulate, they largely point to an enemy effect on mating systems and demonstrate that enemies can create dynamics that lead to the evolutionary stability of mixed mating.


'/>"/>

Contact: Sean Wagner
swagner@bos.blackwellpublishing.com
781-388-8550
Blackwell Publishing Ltd.
Source:Eurekalert

Related biology news :

1. Super predators and mass extinctions
2. Creeping crinoids! Sea lilies crawl to escape predators, new video shows
3. Sea slug mixes chemical defense before firing at predators
4. Predators keep the world green, ecologists find
5. Time of day tempers tadpoles response to predators
6. Predators prefer to hunt small-brained prey
7. Pressured by predators, lizards see rapid shift in natural selection
8. Wheat can fatally starve insect predators
9. Prey not hard-wired to fear predators
10. Marine phytoplankton changes form to protect itself from different predators
11. Protein offers way to stop microscopic parasites in their tracks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/29/2017)... , March 29, 2017  higi, the health IT ... North America , today announced a ... the acquisition of EveryMove. The new investment and acquisition ... of tools to transform population health activities through the ... data. higi collects and secures data today ...
(Date:3/28/2017)... India , March 28, 2017 ... IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software ... Vertical, and Region - Global Forecast to 2022", published ... Billion in 2016 and is projected to reach USD ... between 2017 and 2022. The base year considered for ...
(Date:3/27/2017)... March 27, 2017  Catholic Health Services (CHS) ... Systems Society (HIMSS) Analytics for achieving Stage 6 ... sm . In addition, CHS previously earned a ... using an electronic medical record (EMR). ... level of EMR usage in an outpatient setting.  ...
Breaking Biology News(10 mins):
(Date:3/29/2017)... Addison, Tx (PRWEB) , ... March 29, 2017 ... ... is honored to announce that Nerium International Mexico has been approved as an ... AMVD works to achieve satisfaction and protection among distributers and consumers in relationship ...
(Date:3/29/2017)... , ... March 29, 2017 , ... ComplianceOnline, the leading ... has announced its 3rd Annual Medical Device Summit 2017 venue and speaker lineup. The ... House Hotel, in Boston, MA. , The Omni Parker House Hotel, which is located ...
(Date:3/29/2017)... March 29, 2017  Applied BioMath ( ... modeling to drug research and development, today ... Zymeworks Inc. for quantitative systems pharmacology (QSP) ... for the treatment of cancer. ... for GLP toxicology studies and first-in-human dose ...
(Date:3/29/2017)... , March 29, 2017  Halozyme Therapeutics, Inc. ... and drug-delivery therapies, today announced that an Oncologic ... Drug Administration voted 11 to 0 that the ... injection was favorable for patients in the proposed ... and chronic lymphocytic leukemia. The FDA action date ...
Breaking Biology Technology: