Navigation Links
Mate selection: How does she know he'll take care of the kids?
Date:6/18/2009

New Haven, Conn. Throughout the animal kingdom brilliant colors or elaborate behavioral displays serve as "advertisements" for attracting mates. But, what do the ads promise, and is there truth in advertizing? Researchers at Yale theorize that when males must provide care for the survival of their offspring, the males' signals will consistently be honest and they may devote more of their energy to caring for their offspring than to being attractive.

The idea that males showcase their best qualities to attract females for mating isn't a new one, nor is the idea that they might be deceptive in what they are promoting. Instead, the new findings better predict the requirement for honesty in advertising as a function of the male's suitability for parenting, according to Natasha Kelly, a graduate student in ecology and evolutionary biology at Yale and lead author of the study.

The peacock's ornate fanned tail or the primping and posturing of a guy in a bar are "advertisements" or mating displays that take substantial energy to maintain. When a male's energy is heavily focused on keeping up his appearance, he may have little energy to devote to caring for offspring. But that may be okay, say the researchers in species where he does not really need to tend to the kids.

Previous research suggested that, under certain circumstances, males could be dishonest about their parenting skills and still have high reproductive success. This new model, now appearing in the online version of the Proceedings of the Royal Society B, examines the reliability of males' mating signals when they must care for offspring an aspect that was missing in earlier studies.

There are many species in which males could, but do not have to, provide parental care because females will pick up the slack. The Yale researchers focused on those species, like stickleback fish, where females canno
'/>"/>

Contact: Janet Rettig Emanuel
janet.emanuel@yale.edu
203-432-2157
Yale University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Rising acidity levels could trigger shellfish revenue declines, job losses
2. Crustacean shell with polyester creates mixed-fiber material for nerve repair
3. Beetle shell inspires brilliant white paper
4. Shellfish face an uncertain future in a high CO2 world
5. Focus on the formation of bones, teeth and shells
6. Mollusks taste memories to build shells
7. Penn biologists demonstrate that size matters... in snail shells
8. Shellfish and inkjet printers may hold key to faster healing from surgeries
9. Scientists unlock the secrets of C. difficiles protective shell
10. These shells dont clam up: Innovative technique to record human impact on coastal waters
11. These shells dont clam up: Innovative technique to record human impact on coastal waters
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mate selection: How does she know he'll take care of the kids?
(Date:5/21/2015)... , May 21, 2015 The ... potential of music for health, today announced a collaborative ... . The partnership will center on collaboration on original ... a first step in the collaboration, The Sync Project ... on "Music as Medicine" in the 2015-2016 academic year.  ...
(Date:5/20/2015)... May 20, 2015 NXT-ID, Inc. (NASDAQ: ... wholly owned subsidiary, 3D-ID LLC, a company engaged in ... for the biometrics technology portion of the recently awarded ... the Department of the Army. 3D-ID LLC ... for government, law enforcement and security agencies. ...
(Date:5/19/2015)... 2015  Technology is rapidly advancing, outpacing enterprises, ability ... cloud. Passwords and their management are soon to be ... specifications such as those developed by the FIDO Alliance™. ... presents for BYOD, COPE, IoT, and mobile payments, the ... In response to the call for ...
Breaking Biology News(10 mins):The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 3
... tracking technology, conservationists from the Wildlife Conservation Society, the University ... a ground-breaking study on a mysterious ocean giant: the manta ... published study on the use of satellite telemetry to track ... grow up to 25 feet in width. Researchers say ...
... Barley grown in Scandinavian countries is adapted in a similar ... length at high latitudes. Researchers have found a genetic mutation ... that barley from southern regions use to time their growing ... to extremely long days, so has Scandinavian barley to grow ...
... show that embryonic stem cells unable to fully compact ... differentiation into specific cell types that give rise to ... body. Researchers from the Georgia Institute of Technology ... for proper embryonic stem cell differentiation to occur. Chromatin, ...
Cached Biology News:First satellite tag study for manta rays reveals habits and hidden journeys of ocean giants 2Barley takes a leaf out of reindeer's book in the land of the midnight sun 2Barley takes a leaf out of reindeer's book in the land of the midnight sun 3Successful stem cell differentiation requires DNA compaction, study finds 2Successful stem cell differentiation requires DNA compaction, study finds 3Successful stem cell differentiation requires DNA compaction, study finds 4
(Date:5/27/2015)... , May 27, 2015  Northwest Biotherapeutics, Inc. (NASDAQ: ... DCVax® personalized immune therapies for cancer, announced today that ... of the Company, will be making an Industry Expert ... Chicago on Saturday, May 30, ... Industry Expert Theater in McCormick Place. Dr. ...
(Date:5/27/2015)... May 27, 2015  RXi Pharmaceuticals Corporation (NASDAQ: ... discovering and developing innovative therapies primarily in the ... on the status of the Company,s Series A ... Logo - http://photos.prnewswire.com/prnh/20130917/NE80755LOGO ... 21 shares of Series A Preferred Stock and ...
(Date:5/26/2015)... 2015 Regenestem Network has ... clinic in Buenos Aires, Argentina. The clinic will be ... specialist. Pastrana has assembled a multidisciplinary team of medical ... her state-of-the-art Puerto Madero office. , The new ... phase IV clinical studies in cellular therapies, and establish ...
(Date:5/26/2015)... REDWOOD CITY, California and HILDEN, ... -- QIAGEN N.V. (NASDAQ: QGEN ... commercial launch of its QIAGEN Clinical Insight ® ... clinical testing labs to interpret and report on ... first two supported applications for the bioinformatics platform ...
Breaking Biology Technology:NW Bio To Present Overview Of DCVax-Direct Phase I Trial In Chicago This Weekend 2NW Bio To Present Overview Of DCVax-Direct Phase I Trial In Chicago This Weekend 3RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 2RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 3Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 2Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 2QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 4QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 5
... An education research team at the University of Wisconsin-Madison ... to study the impact of digital media on youth ... investment will support 24 national studies of different aspects of ... , ,"What MacArthur is actually trying to do, with this ...
... this column before the American population hit the 300 million mark ... - America's population is scheduled to hit the 300 million mark ... guilt-trip the poor baby before he or she is out of ... the contrary, too many environmentalists still buy into the doomsday theories ...
... Court soon will decide whether to change the current ... must not be "obvious" in light of what was publicly ... and any change in the legal test for obviousness would ... ,One only has to look at the list of non-party ...
Cached Biology Technology:UW gets $3M to explore educational gaming 2UW gets $3M to explore educational gaming 3300 millionth American no cause for eco-alarm 2300 millionth American no cause for eco-alarm 3300 millionth American no cause for eco-alarm 4Inventions could fall prey to Monday morning quarterbacking 2Inventions could fall prey to Monday morning quarterbacking 3Inventions could fall prey to Monday morning quarterbacking 4
DNA Purification...
EPH electrode, cathode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
... Guinea Pig serum is collected from fasted Guinea ... Citrate N-04: Heparin (Na) ... N-10: EDTA (Na) N-03: ... CPD N-09: K3EDTA N-11: ...
... ml. Improves reproducibility and quality ... streaking.Eliminates extra spots caused by ... throughout entire 2-D runs, ensuring ... for both analytical and preparative ...
Biology Products: