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:7/10/2014)... New York , July 7, 2014 ... by Transparency Market Research "Electronic Access Control Systems Market ... 2014 - 2019," the global Electronic Access Control systems ... and is expected to grow at a CAGR of ... value of USD 31,187.8 million in 2019. ...
(Date:7/10/2014)... belongs to the large, mainly tropical flowering plant family ... in the family rely on bees for their pollination. Only ... or vertebrates. The flowers of Axinaea appear in ... petals of the different species are pink, yellow, orange or ... the contrasting colours of their bulbous appendages. The pollination mechanism ...
(Date:7/10/2014)... has helped stabilize or even improve the state ... the situation in the Mediterranean has deteriorated over ... evaluating nine fish species reported in the Cell ... 10, scientists call for stringent monitoring of Mediterranean ... advanced management plans in Mediterranean waters. , Their ...
Breaking Biology News(10 mins):Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 2Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 3Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 4Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 5Novel type of bird pollination mechanism discovered in South America 2Mediterranean fish stocks show steady decline 2
... 20, 2013 Market news updates for advancing ... Inc. (OTCQB: NXTD), Apple Inc. (NASDAQ: AAPL ), ... CSCO ) and NQ Mobile Inc. (NYSE: NQ) ... published a report on NXT-ID, Inc., (OTCQB: NXTD) featuring the ...
... of all humans are persistently colonized with Staphylococcus aureus ... of the major sources of hospital-acquired infections, including the antibiotic-resistant ... discovered one of the keys to the immense success of ... immune defense mechanism and use it to destroy white blood ...
... fattening than others? What about the risks of bariatric ... (ASN) on December 5-7 for answers to these questions ... Nutrition Conference. The 3-day program delivers valuable ... satellite sessions, and networking opportunities. Credentialed media, science writers ...
Cached Biology News:Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 2Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 3Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 4Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 5Staphylococcus aureus bacteria turns immune system against itself 2Advances and Controversies in Clinical Nutrition: Diet, Technology and Practice 2
(Date:7/10/2014)... Hall effect in bilayer graphene and shown that this ... electric field. , The fractional quantum Hall effect, ... are exposed to large magnetic fields, is a striking ... behave as a single system. However, while the basic ... of this collective behavior remain not well understood, in ...
(Date:7/10/2014)... out for crude 3-D glasses, polarized glasses, and ... basic devices, used to trick the brain into ... rendered obsolete with the introduction of new holography ... TAU doctoral students Yuval Yifat, Michal Eitan, and ... on nanoantennas that could be used for security ...
(Date:1/15/2014)... assembling a club sandwich at the nanoscale, National ... succeeded in crafting a uniform, multi-walled carbon-nanotube-based coating ... used in upholstered furniture and other soft furnishings. ... was reduced 35 percent compared with untreated foam. ...
(Date:1/15/2014)... PA (PRWEB) January 15, 2014 The Pittcon ... publisher of Food Safety Tech , an e-Journal and ... signed an agreement for the second year for the co-location ... Pittcon 2014. The partnership provides that the registration fee to ...
Breaking Biology Technology:Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3Layered security: Carbon nanotubes promise improved flame-resistant coating 2Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3
... Disease Altering Treatment Shows Ability to Prevent HIV ... VIRxSYS Corporation, a,privately held company developing gene therapies ... Phase II trial of VRX496, a gene,therapy for ... Conference on,Retroviruses and Opportunistic Infections (CROI) in Boston, ...
... Strengthening PPD,s presence in Eastern Europe, WILMINGTON, N.C., ... has signed an agreement to purchase InnoPharm,Ltd., an independent ... acquisition will expand PPD,s global reach with,established offices in ... CROs in Russia, InnoPharm was a pioneer in the,implementation ...
... (Nasdaq: IDIX ) announced today that Idenix management,will ... & Investor,Conference on Tuesday, February 12, 2008 at 9:30 ... the Waldorf-Astoria Hotel in New York, NY., The ... accessed,under "Calendar of Events" in the Idenix Investor Center ...
Cached Biology Technology:VIRxSYS Announces Interim Results from VRX496 Gene Therapy Phase II Trial 2PPD to Acquire InnoPharm Ltd. 2PPD to Acquire InnoPharm Ltd. 3
...
... Antibody Validation Service enables early selection ... development by providing quantitative data for ... of each antibody. Furthermore quantitative antibody ... off-target activity of your antibodies., The ...
... western blotting. Get results sooner and save hours ... detection. Eliminates the need for a membrane transfer ... reagents are ready-to-use. No reagents to prepare or ... reagents required. Guarantees a simple to perform, mistake-free ...
... paper sandwiches are composed of a precut ... thick filter paper that are preassembled into ... These 7 x 8.5 cm membrane sandwiches ... Gel-sized gels and are supplied as a ...
Biology Products: