Navigation Links
Urine sprays during courtship send mixed messages
Date:3/29/2010

Walking through urine drives crayfish into an aggressive sexual frenzy. Researchers writing in the open access journal BMC Biology suggest that a urine-mediated combination of aggressive and reproductive behaviour ensures that only the strongest males get to mate.

Fiona Berry and Thomas Breithaupt from the University of Hull, UK, investigated the effects of urine-based chemical signaling on sexually active crayfish. Breithaupt said, "Our results confirm that females initiate courtship behavior; males will only attempt to mate if they receive urinary signals from the female. Females, however, send a mixed message by releasing an aphrodisiac while also acting very aggressively towards the males".

Females could profit in different ways from displaying such conflicting signals. By stimulating aggressive behaviour in males, females can gauge male size and strength and thereby ensure that only the fittest males get to fertilise their eggs. According to the researchers, "Timing seems to be key to this interaction as urine induces aggression in both sexes. Males will discontinue urine release early in the sexual encounter, which may mitigate the female's antagonism and enhance mating success".


'/>"/>

Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-203-192-2165
BioMed Central
Source:Eurekalert  

Page: 1

Related biology news :

1. New way to control disease-spreading mosquitoes: Make them hold their urine
2. Sustainable fertilizer: Urine and wood ash produce large harvest
3. A urine test for appendicitis?
4. Stress during pregnancy may increase offsprings risk of asthma
5. Sonic hedgehog gene found in an unexpected place during limb development
6. Carnegie Mellon first to measure energy released from a virus during infection
7. Gas improves blood flow and organ status during minimally invasive surgery
8. Lower income women report more insurance-based discrimination during pregnancy, delivery
9. Paleontologists find extinction rates higher in open-ocean settings during mass extinctions
10. Consumption of certain fish during pregnancy associated with poorer cognitive performance
11. Bats use love songs during mating, researchers say
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Urine sprays during courtship send mixed messages
(Date:1/13/2016)... DUBLIN , January 13, 2016 ... has announced the addition of the  ... - Estimation & Forecast (2015-2020)" ... http://www.researchandmarkets.com/research/7h6hnn/india_biometrics ) has announced the ... & Identification Market - Estimation & ...
(Date:1/11/2016)... 11, 2016  higi, the leading retail and ... locations, web and mobile, today announced it has ... existing investors. --> ... further innovate higi,s health platform – its network ... – including expanding services and programs to retail ...
(Date:1/8/2016)... January 8, 2016 NXTD ), ... WorldVentures ® , a privately held leading direct seller ... Inc. 5000 fastest-growing company announced that on December ... $2 million in Nxt-ID to develop a proprietary new ... Wocket ® , a unique smart wallet that serves ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... Feb. 10, 2016  IsoRay, Inc. (NYSE MKT: ISR), ... and medical radioisotope applications for the treatment of prostate, ... announced its financial results for the second quarter and ... 2015. --> --> ... of fiscal 2016, which ended December 31, 2015, a ...
(Date:2/10/2016)... ... , ... LATHAM, NEW YORK... Marktech Optoelectronics will feature their new ... San Francisco’s Moscone Center from February 16-18, 2016, and at the healthcare-focused BiOS Expo ... PIN diode standard packages feature a TO-46 metal can with active areas of 1.0mm ...
(Date:2/10/2016)... ... February 10, 2016 , ... Cenna Bioscience Inc., an emerging biopharmaceutical company focused ... announced today it has been selected to present at the Cavendish Global Health Impact ... Florida. The purpose of the Forum is to help family offices and foundations ...
(Date:2/9/2016)... ... February 08, 2016 , ... Net-Translators, an industry-leading provider of ... its revamped and improved website. In an on-going effort to further educate customers ... better communicate how the company designs and delivers thorough, high-quality results for its ...
Breaking Biology Technology: