Navigation Links
Armed beetles find a mate, whatever their size
Date:3/27/2008

One species of armed beetle is proving that size doesnt necessarily matter when it comes to finding a mate. The creatures pulling techniques will be revealed in the April edition of the Royal Entomological Societys Ecological Entomology journal.

In the world of armed beetles, biggest is usually best, as males often fight for mating rights and those with the largest jaws beat off the competition. However, this is not always the case with one particular species.

Researchers at Okayama University in Japan have been monitoring the mating habits of large, medium and small Librodor japonicus males, and found that this particular species adopts a different tactic to finding a mate depending on the size of certain body parts.

The largest male beetles wait for females at the feeding areas and fight for the right to mate the males with the biggest jaws stand the best chance of winning. The medium sized beetles which are too small to beat the bigger males have developed relatively bigger wings than their larger counterparts, and they use these to search for the feeding sites which are unoccupied by large males.

The smallest male beetles have adopted a completely different tactic they stay at the feeding sites with the big males, and attempt sneaky matings with females behind the bigger males backs. Whats more, these males have relatively larger testes and produce sperm that is more competitive than the bigger males.

The L. japonicus beetles have ensured that, through their size-determined mating tactics, they all have a chance of finding a mate, and sometimes with no fighting involved.

Researcher Takahisa Miyatake said, "Although other studies of armed beetles have observed 2 different sizes of males, we have shown that males can adopt up to three different behavioural tactics to improve their mating success."


'/>"/>

Contact: Liz Powell
liz@cicada-comms.com
Wiley-Blackwell
Source:Eurekalert  

Page: 1

Related biology news :

1. Ebola virus disarmed by excising a single gene
2. Dartmouth researchers alarmed by levels of mercury and arsenic in Chinese freshwater ecosystem
3. Easton, PA Police Officers Armed With BIO-key(R) Mobile Data Solution Access Information Anytime, Anywhere
4. Sex is thirst-quenching for female beetles
5. Workshop assesses interactions between climate, forests and land use in the Amazon Basin
6. Some cheaters can keep it in their genes
7. Wandering albatrosses follow their nose
8. A compound extracted from olives inhibits cancer cells growth and prevents their appearance
9. Hungry mothers risk addiction in their adult children
10. Family ties that bind: Maternal grandparents are more involved in the lives of their grandchildren
11. Men unaware of their cancer risk when female relatives test positive for BRCA mutation
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Armed beetles find a mate, whatever their size
(Date:4/26/2016)... 27, 2016 Research and ... Biometrics Market 2016-2020"  report to their offering.  , ... The analysts forecast the global multimodal biometrics ... during the period 2016-2020.  Multimodal biometrics ... such as the healthcare, BFSI, transportation, automotive, and ...
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
(Date:3/29/2016)... , March 29, 2016 LegacyXChange, ... LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased to announce ... used in a variety of writing instruments, ensuring athletes ... originally created collectibles from athletes on LegacyXChange will be ... of the DNA. Bill Bollander , ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... --  Ginkgo Bioworks , a leading organism design ... awarded as one of the World Economic Forum,s ... innovative companies. Ginkgo Bioworks is engineering biology to ... in the nutrition, health and consumer goods sectors. ... including Fortune 500 companies to design microbes for ...
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of ... the Cary 5000 and the 6000i models are higher end machines that use the ... of the spectrophotometer’s light beam from the bottom of the cuvette holder. , ...
(Date:6/23/2016)... ... 2016 , ... UAS LifeSciences, one of the leading manufacturers ... Probiotics, into Target stores nationwide. The company, which has been manufacturing high quality ... list of well-respected retailers. This list includes such fine stores as Whole Foods, ...
(Date:6/23/2016)... A person commits a crime, and the detective ... the criminal down. An outbreak of foodborne illness ... (FDA) uses DNA evidence to track down the bacteria that ... It,s not. The FDA has increasingly used a complex, cutting-edge ... illnesses. Put as simply as possible, whole genome sequencing is ...
Breaking Biology Technology: