HOME >> BIOLOGY >> NEWS
New study explores the evolution of male parental care and female multiple mating

Males enjoy larger reproductive success by mating with many females, whereas the number of offspring per female does not increase by mating with many males. Furthermore, males run the risk of investing in offspring of other males if they provide parental care. Nevertheless, in various species, males provide parental care and females mate with multiple males. For example, recent empirical studies show that extra-pair copulation frequently occurs in monogamous birds in which a "social" father provides intensive care for its "social" offspring. Can such pseudo-monogamy through the Darwinian theory of evolution?

A new study by Joe Yuichiro Wakano and Yasuo Ihara in the August 2005 issue of The American Naturalist investigates a game-theoretical model in which females gain a direct benefit by multiple mating from the paternal care they elicit for their offspring. As a result, various combinations of male parental care and female multiple mating evolve. The parameters that directly favor male parental care, such as small cost of paternal care, have indirect positive effects on the evolution of female multiple mating, while they have negative effects in the opposite case. Both traits are more likely to evolve when the number of matings is smaller. Based on the model result, the researchers provide a hypothesis explaining why pseudo-monogamy evolved in birds.


'"/>

Contact: Carrie Olivia Adams
coa@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
26-Jul-2005


Page: 1

Related biology news :

1. New study warns limited carbon market puts 20 percent of tropical forest at risk
2. Clones on task serve greater good, evolutionary study shows
3. Pollution causes 40 percent of deaths worldwide, study finds
4. A study by the MUHC and McGill University opens a new door to understanding cancer
5. New study suggests Concord grape juice may provide protection against breast cancer
6. Preclinical study links gene to brain aneurysm formation
7. In limiting life span, study finds booming bacteria innocent
8. Multicenter study nets new lung tumor-suppressor gene
9. MIT study: Maturity brings richer memories
10. Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
11. Phase II study of therapeutic vaccine shows efficacy in patients with metastatic colorectal cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/14/2019)... (PRWEB) , ... November 13, 2019 , ... Personalized ... the first patients in an FDA approved clinical trial for stem cell treatment ... the formation of the company as a subsidiary of VetStem Biopharma. , In July ...
(Date:11/12/2019)... , ... November 12, 2019 ... ... a global leader in the design and manufacturer of technical ergonomic seating ... and adjustable footrests compliant with Healthier Hospital Initiative guidelines. Established by Practice ...
(Date:11/12/2019)... , ... November 12, 2019 , ... ... for proposals from nonprofit U.S. universities and research institutions for its Instrumentation ... support of up to $1.2 million per site for the acquisition of instrumentation, ...
Breaking Biology News(10 mins):
(Date:12/23/2019)... ... December 23, 2019 , ... ... systems for the Pharmaceutical, Biotechnology and Medical Device Industries, is excited to announce ... Parenteral Drug Association (PDA) Container Closure Integrity Testing Basic Training Course . ...
(Date:12/18/2019)... ... December 17, 2019 , ... Philadelphia IP law firm ... has hired Dr. Alia Orbin, Ph.D., J.D., an experienced registered patent attorney with ... and prosecution of patent applications related to pharmaceutical sciences, organic and inorganic chemistry, ...
(Date:12/14/2019)... ... December 12, 2019 , ... Leak Detection Associates (LDA) ... the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries is excited to announce ... -80C) helium leak testing system is designed for testing containers at temperatures as ...
(Date:12/4/2019)... ... 2019 , ... A new survey by MedReps ( http://www.medreps.com ), a career ... best medical sales companies to work for in 2020. , The 9th ... from the MedReps community to identify which medical sales companies are currently the most ...
Breaking Biology Technology:
Cached News: