Navigation Links
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.


'"/>

Source:Blackwell Publishing Ltd.


Page: 1

Related biology news :

1. Female sex hormones play a vital role in defense against sexually transmitted diseases
2. Female volunteers prepare for a second bedrest
3. Female butterflies go for sparkle -- not size -- when choosing to mate
4. Female guppies risk their lives to avoid too much male attention
5. Female pronghorns choose mate based on substance as well as show
6. Update on census of worlds most endangered cat -- Female Amur leopard found dead
7. Female Antarctic seals give cold shoulder to local males
8. Female chimps keep the bullies at bay
9. Female-led infanticide in wild chimpanzees
10. Migratory songbirds have a specialized night-vision brain area
11. The lopsided brain: Attention bias is shared by humans and birds
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... March 24, 2017 The Controller General of Immigration ... Abdulla Algeen have received the prestigious international IAIR Award for ... Continue Reading ... ... Deputy Controller Abdulla Algeen (small picture on the right) have received the ...
(Date:3/22/2017)...   Neurotechnology , a provider of high-precision ... the release of the SentiVeillance 6.0 ... recognition using up to 10 surveillance, security and ... new version uses deep neural-network-based facial detection and ... a Graphing Processing Unit (GPU) for enhanced speed. ...
(Date:3/20/2017)... -- PMD Healthcare announces the release of its new ... (WMS), a remote, real-time lung health monitoring and management ... a Medical Device, Digital Health, and Chronic Care Management ... solutions that empower people to improve their healthcare and ... the first ever personal spirometer, Spiro PD, which was ...
Breaking Biology News(10 mins):
(Date:5/18/2017)... ... May 18, 2017 , ... Dr. Ralph Mobbs of ... Prince Of Wales Private Hospital. The procedure was performed on a 46-year-old male ... conservative treatments prior to undergoing surgery. , The AxioMed viscoelastic disc is a ...
(Date:5/18/2017)... (PRWEB) , ... May 17, ... ... CRO standards with psychonneuroendocrine stress expertise, and further enhances its scientific power ... researcher, Douglas A. Granger, Ph.D., has agreed to join the scientific advisory ...
(Date:5/18/2017)... ... May 17, 2017 , ... ... today that their Chief Executive Officer, Maik Jornitz, was recognized as a Top ... Power List celebrates 100 individuals “involved in bettering the pharma industry and bringing ...
(Date:5/16/2017)... ... May 16, 2017 , ... Seattle-based ... metagenomic deconvolution service. ProxiMeta enables researchers to obtain complete, distinct genomes from ... at lower cost. , “We’re very excited about the commercial launch of ...
Breaking Biology Technology: