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:4/13/2017)... April 13, 2017 According to a new market ... Identity Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, ... Market is expected to grow from USD 14.30 Billion in 2017 to ... of 17.3%. ... MarketsandMarkets Logo ...
(Date:4/11/2017)... 2017 No two people are believed ... New York University Tandon School of Engineering and ... that partial similarities between prints are common enough ... phones and other electronic devices can be more ... lies in the fact that fingerprint-based authentication systems ...
(Date:4/5/2017)... SEATTLE , April 5, 2017  The Allen ... the Allen Cell Explorer: a one-of-a-kind portal and dynamic ... large-scale 3D imaging data, the first application of deep ... edited human stem cell lines and a growing suite ... the platform for these and future publicly available resources ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Bay, Florida (PRWEB) , ... October 11, 2017 ... ... and Drug Administration (FDA) has granted orphan drug designation to SBT-100, its novel ... (sdAb) for the treatment of osteosarcoma. SBT-100 is able to cross the cell ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that ... Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s Hospital Los ...
(Date:10/10/2017)... Poway, California (PRWEB) , ... October 10, 2017 , ... ... afternoon speaking at his local San Diego Rotary Club. The event ... San Diego, CA and had 300+ attendees. Dr. Harman, DVM, MPVM was joined ...
(Date:10/10/2017)... Calif. , Oct. 10, 2017 SomaGenics ... from the NIH to develop RealSeq®-SC (Single Cell), expected ... for profiling small RNAs (including microRNAs) from single cells ... Program highlights the need to accelerate development of approaches ... "New techniques for measuring levels ...
Breaking Biology Technology: