Navigation Links
Better looking birds have more help at home with their chicks
Date:6/24/2012

In choosing a mate both males and females rely on visual cues to determine which potential partner will supply the best genes, best nesting site, best territory, and best parenting skills. New research published in BioMed Central's open access journal Frontiers in Zoology shows that male blue tits' (Cyanistes caeruleus) parental behavior is determined by female ornamentation (ultraviolet coloration of the crown), as predicted by the differential allocation hypothesis (DAH).

DAH makes the assumption that aesthetic traits indicate quality and arises from the needs of a parent's current need to ensure current reproductive success and the reproductive success of their offspring. Ornamentation and its maintenance is a cost which reduces energy available for reproduction, but without the ornamentation an individual may not be able to secure a mate. Ornamentation also plays a role in competition between males and between females, as well as signaling potential reproductive success.

But reproductive success does not only depend on the best genes and the best nest, it also depends on parenting skills. Researchers from Konrad Lorenz Institute of Ethology, supported by the "Sparkling-Science" Program, investigated the effect of female ornamentation on the chick-rearing behavior of their mates. Both males and female blue tits have feathers on the top of their heads which reflect UV light. After their chicks had hatched, female blue tits were captured and their crowns smeared with either duck preen gland oil containing UV-blocking chemicals or the oil alone.

Although the UV-blocking chemicals did not alter the behavior of the females, their mates made fewer hunting trips to feed their brood. However the males made the same effort to protect their nest and defend their chicks as males with oil-only treated females.

Dr Matteo Griggio, co-author of this study, commented, "This is the first study to show that male blu
'/>"/>

Contact: Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Evaluation of microscopy techniques may help scientists to better understand ancient plants
2. New Tool Helps Drug Developers Optimize Their Research and Target Development for Better Results and a Stronger Competitive Edge
3. Better plants for biofuels
4. Better housing conditions for zebrafish could improve research results
5. Bigger gorillas better at attracting mates and raising young
6. Modern hybrid corn makes better use of nitrogen, study shows
7. Intensive kidney dialysis indicates better survival rates than conventional dialysis
8. Fish larvae find the reef by orienting: The earlier the better
9. Improved loblolly pines better for the environment, study finds
10. Giant squids giant eyes: The better to see hungry whales with
11. UNH researchers find African farmers need better climate change data to improve farming practices
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Better looking birds have more help at home with their chicks
(Date:8/3/2015)... 3, 2015 Synaptics, Inc. (Nasdaq: SYNA ... announced that members of the executive management team will ... Global Technology Leadership Forum on Tuesday, August 11, 2015 ... held at the Sonnenalp Resort in Vail, ... include forward-looking information. An audio webcast of the event ...
(Date:7/31/2015)... , Kina, 31. juli 2015 Den 10. ... afholdt af BGI fra den 22. - 25. oktober i ... Konferencen fejrer sin 10-års fødselsdag i år. Siden starten ... indflydelsesrige årlige møder på ,omik,-feltet, og er en af ... ICG-10 fokuserer på nylige gennembrud og fremskridt ...
(Date:7/31/2015)... , 31 de julio de 2015 BGI llevará ... www.icg-10.org ) del 22 al 25 de octubre de ... La conferencia celebra su décimo aniversario este año. ... en una de las reuniones anuales más influyentes del ... una de las conferencias científicas más dinámicas, entusiastas y ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
... of reduced snowfall in mountains is causing powerful and ... increased ability of elk to stay at high elevations over ... Nature Climate Change . , The U.S. Geological ... the abundance of deciduous trees and their associated songbirds in ...
... new study by Rice University,s Baker Institute for Public Policy ... young investigators and a novel standard by which to judge ... age of biomedical researchers getting their first grant from the ... the past 30 years, the average age of Nobel winners ...
... fever, dengue fever, and chikungunya fever spread rapidly around the ... mosquito,s immune system and how the viral pathogens that cause ... to human and animal hosts. In nearly every ... of morbidity and mortality after being bitten by mosquitoes infected ...
Cached Biology News:Dramatic links found between climate change, elk, plants, and birds 2Nobel history illustrates gap in grants to young scientists 2Nobel history illustrates gap in grants to young scientists 3Researchers discover novel anti-viral immune pathway in the mosquito 2
(Date:8/3/2015)... , Aug. 3, 2015  ArroGen Group, an ... new Fingerprint Molecular Identification™ (FMID) technology Aug. 2-8 ... in Sacramento, Calif. ... will enable law enforcement agents, district attorneys and ... criminal suspects. By analyzing chemical residues ...
(Date:8/3/2015)... , ... August 03, 2015 , ... Nine field days ... Illinois and Indiana. Hosted by the Soil Health Partnership , the field days ... environmental benefits while potentially increasing farm productivity and income. , Brent Bible has practiced ...
(Date:8/3/2015)... - RepliCel Life Sciences Inc. (TSX.V: RP) (OTCQB: REPCF), a ... autologous cell therapies, announced today that RepliCel,s CEO, David ... in Minneapolis, Minnesota on August 5 ... highlight RepliCel,s 18-month milestones including CE Mark for its RCI-02 ... clinical data from both RCT-01 (tendon) and RCS-01 (skin) clinical ...
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is proud ... partially hydrolyzed gluten in foods, has been accepted by AOAC International as Official ... Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a specific ...
Breaking Biology Technology:ArroGen Previews New Fingerprint Molecular Identification Technology 2Soil Health Field Days Kick Off Throughout Midwest 2Soil Health Field Days Kick Off Throughout Midwest 3RepliCel Presenting at InvestMNT Investor Conference in Minneapolis 2RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2
... Corporation (Nasdaq: ROCM ) will announce quarterly results ... Company will then,hold a quarterly conference call to discuss ... central daylight time (5:00 p.m. eastern time)., This ... accessed at,Rochester Medical,s website at http://www.rocm.com . To ...
... American Oriental,Bioengineering, Inc. (NYSE: AOB ) today ... results on Monday, August 11, 2008, after the,market closes., ... 5:00 pm ET on August 11,2008 to discuss its ... by dialing 1-800-599-9816 or 1-617-847-8705 for,international callers, access code: ...
... Radiofrequency ... Surgical Technologies -, PALO ALTO, Calif., July 24 ... new tissue dissection system,based on a proprietary technology, today announced that ... to market its,PEAK(R) Surgery System for use in general surgery. The ...
Cached Biology Technology:Rochester Medical Announces Third Quarter 2008 Earnings Conference Call July 31, 2008 2PEAK Surgical Receives 510(k) Clearance to Market PEAK(R) Surgery System for Use in General Surgery 2PEAK Surgical Receives 510(k) Clearance to Market PEAK(R) Surgery System for Use in General Surgery 3PEAK Surgical Receives 510(k) Clearance to Market PEAK(R) Surgery System for Use in General Surgery 4
Component in MasterPure™ Purification Kits...
Anti-gp340 Monoclonal Antibody Description: 100 g Research Focus: cancer & cell proliferation Storage: -20C Shipping Temperature: 4C...
Mouse anti-HIV-Imn PND Class: Antibody Product Group: Bacterial and Viral Antigen...
... BRF2 Immunogen Synthetic peptide: QAARQAATSVPNPP, corresponding ... BRF2. Reactivity / Specificity Cross-reacts with ... Background Information BRF2 is one of the ... factor complex required for transcription of genes with ...
Biology Products: