HOME >> BIOLOGY >> NEWS
Female birds boost up their eggs when hearing sexy song

In a new study published in the latest issue of Ethology researchers show that female songbirds can alter the size of eggs and possibly the sex of their chicks according to how they perceive their mate's quality.

The researchers played back attractive ("sexy") songs and less attractive control songs of male canaries to female domesticated canaries. When the females started egg-laying they varied the size of their eggs in the nest according to the attractiveness of the male's song. That is, the more attractive the song, the larger the eggs. However it is remarkable that while larger eggs were more likely to contain male offspring in natural environments, in the experiment there was no difference in brood sex ratio between the different songs played to the females, which suggests different levels of female control. Male birdsong has long been known to attract females and influence mate choice decisions and even induce an alteration in the offspring's sex ratio. This study by Leitner et al. now shows experimentally that hearing attractive song also has a selective impact on female physiology.

45 female domesticated canaries participated in this study that was a collaboration of Royal Holloway, University of London and the Max Planck Institute for Ornithology in Seewiesen and Radolfzell in Germany. The birds were kept in large aviaries where their daily behaviour was monitored in a colony before they were tested in the song experiments. The females showed a remarkable consistency in their behavioural and reproductive performance and the song stimuli alone were sufficient to elicit a profound physiological change. This study further highlights the importance of behavioural stimuli for reproductive physiology. Bathroom Pavarottis beware.


'"/>

Contact: Davina Quarterman
davina.quarterman@oxon.blackwellpublishing.com
Blackwell Publishing Ltd.
7-Jun-2006


Page: 1

Related biology news :

1. Female gender provides an advantage in renal diseases
2. Females more prone to brain damage from alcohol abuse
3. Female iguanas pay high costs to choose a mate
4. Female-led infanticide in wild chimpanzees
5. Female ticks have market on gluttony
6. Females do best if they wait a while
7. Female chimps keep the bullies at bay
8. Female Antarctic seals give cold shoulder to local males
9. Female pronghorns choose mate based on substance as well as show
10. Female guppies risk their lives to avoid too much male attention
11. Females, alcohol and hormones

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Female birds boost their eggs when hearing sexy song

(Date:4/14/2015)... , April 14, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, ... for the 2015 New York Design Awards under the ... New York City Design Awards are part of a ... over 2,500 ratings from the marketplace, industry and judging ...
(Date:4/13/2015)... -- higi, a leading cloud-based consumer engagement platform that provides ... their communities around health and wellness, announced today the ... ... convenient vehicle to receive validated health information from consumers. ... API will allow higi,s trusted partners, on a user ...
(Date:4/9/2015)... 9, 2015 Synaptics Inc. (NASDAQ: SYNA ), ... that it will report financial results for the third ... after the close of market. The company will host ... 2:00 p.m. PT (5:00 p.m. ET), during which management ... on the live call, analysts and investors should dial ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3Synaptics to Report Third Quarter Results on April 23 2
(Date:5/29/2015)... Delcath Systems, Inc. (NASDAQ: DCTH ... focused on oncology with an emphasis on the ... that results of a large, European single-center experience ... hepatic metastases with the Delcath Hepatic CHEMOSAT ® ... abstract at the American Society of Clinical Oncology ...
(Date:5/29/2015)... 29, 2015  Caris Life Sciences® today announced ... which researchers utilized Caris Molecular Intelligence®, the company,s ... therapeutic targets in patients with colorectal and pancreatic ... cell death protein 1 (PD-1) and its ligand, ... the 2015 American Society of Clinical Oncology Annual ...
(Date:5/29/2015)... , May 28, 2015 Research ... addition of Jain PharmaBiotech,s new report "Cytogenetics ... offering. This report deals with cytogenetics ... use mainly to describe the chromosome structure and ... of molecular biology, it is also referred to ...
(Date:5/29/2015)... MILWAUKEE, WISCONSIN (PRWEB) May 29, 2015 ... oncolytic virus talimogene laherparepvec and its ability to reduce ... the treatment have been published in the Journal of ... 436 patients with stages IIIB, IIIC and IV melanoma, ... goal of the study was to evaluate the safety ...
Breaking Biology Technology:Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 2Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 3Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 4Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 5Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 2Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 3Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 4Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 2Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 3Study Published in Journal of Clinical Oncology Reports Talimogene Laherparepvec Improvesdurable Responses in Patients with Advanced Melanoma 2
Cached News: