Navigation Links
Mating rivalry among furred and feathered: Variety is spice of life
Date:5/25/2011

This press release is available in French.

Montreal, May 25, 2011 Birds do it. Bees do it. Fish, lobsters, frogs and lizards do it, too. But when it comes to securing a mate in the animal world, variety is literally the spice of life.

A group of scientists from Simon Fraser University, Concordia University and Dalhousie University has found flexibility in mating rituals is the key to reproductive success when males outnumber females.

The research team pored through hundreds of investigations on mating trends in mammals, insects, fish, crustaceans, amphibians and reptiles.

"We found there's significant flexibility in mating behavior and customs across many species," says study co-author James W. A. Grant, professor in the Department of Biology at Concordia University.

During mating periods, as males compete for females, courtship behavior can morph from fighting to desperate searching when males are outnumbered.

"We tend to think that more males lead to more fighting, but after a point, fighting with every male around gets too tiring and risky because of the increased chances of injury. More importantly, having their potential mate stolen away by a more attentive suitor," says lead author Laura K. Weir, a Concordia graduate (BSC, ecology, 2001) and a postdoctoral fellow at Simon Fraser University.

In the battle to reproduce, the element of surprise was found to be a weapon of choice for males surrounded by dominant peers. "Males may forgo displays of conspicuous courtship and attempt to gain some reproductive success in other ways," says coauthor Jeffrey A. Hutchings, a biology professor at Dalhousie University.

Males also favour mate-guarding over traditional courtship rites during mate shortages bad news for females hoping to be wooed by multiple suitors.

"Males guard females until they are ready to mate in order to ensure some degree of reproductive success by preventing sperm competition from subsequent males," says Grant, noting males tailor sperm expenditure according to how many competitors they face.

Males are also more likely to stick around regardless of the level of interest from females when mates are scarce. "However, if females are abundant and encounters are frequent, males may abandon females who are not receptive to find one who is ready to mate," says Grant.


'/>"/>

Contact: Sylvain-Jacques Desjardins
s-j.desjardins@concordia.ca
51-484-824-245-068
Concordia University
Source:Eurekalert

Related biology news :

1. Aggressive male mating behavior can endanger species
2. Birds must choose between mating, migrating, study finds
3. When food is scarce, hungry female spiders alter mating preferences
4. Mating mites trapped in amber reveal sex role reversal
5. Researchers working toward automating sedation in intensive care units
6. SU scientists find that in the evolutionary mating game, brawn and stealth rule
7. Nightshades mating habits strike uneasy evolutionary balance
8. Whale sharks may produce many litters from 1 mating, paternity test shows
9. Male antelopes deceive females to increase their chances of mating
10. Mystery solved: Facial cancer decimating Tasmanian devils likely began in Schwann cells
11. Loyal alligators display the mating habits of birds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/3/2016)... PUNE, India , February 3, 2016 ... to the new market research report "Automated Fingerprint Identification ... (Tenprint Search, Latent Search), Application (Banking & Finance, Government, ... 2020", published by MarketsandMarkets, the market is expected to ... estimated CAGR of 21.0% between 2015 and 2020. The ...
(Date:2/2/2016)... 2016 This BCC Research report provides ... reviewing the recent advances in high throughput ‘omic ... field forward. Includes forecast through 2019. ... and opportunities that exist in the bioinformatic market. ... as well as IT and bioinformatics service providers. ...
(Date:2/2/2016)... , Feb. 2, 2016  Based on ... Frost & Sullivan recognizes US-based Intelligent Retinal Imaging ... & Sullivan Award for New Product Innovation. IRIS, ... North America , is poised ... rapidly growing diabetic retinopathy market. The IRIS technology ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... ... February 08, 2016 , ... Thomas J. Todorow has ... Vice President for Corporate Services and the Chief Financial Officer at The Children’s ... Operations, Treasury, Managed Care Contracting, Supply Chain, and Investments. , Prior to joining ...
(Date:2/8/2016)... ... 2016 , ... Information Management Services ( IMS ) is pleased to announce ... new technical foundation and is so significant it was endowed with a new name, ... for search results, a streamlined layout and a more intuitive format for navigating the ...
(Date:2/8/2016)... ... February 08, 2016 , ... ... leading supplier of Semantic Graph Database technology, today announced the availability of AllegroGraph ... Cloudera Enterprise through the Cloudera Certified Technology Program (CCPT). AllegroGraph is ...
(Date:2/8/2016)... has an active R&D program for the development of ... Group has a unique research and development center in ... Bio Control products. Stockton has a ... regulatory guidelines, and is active in more than 35 counties ... Stockton,s flagship product Timorex Gold ® ...
Breaking Biology Technology: