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:3/18/2016)... 2016 --> --> ... Manned & Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance & ... the border security market and the continuing migration crisis in ... Europe has led visiongain to publish this unique ... --> defence & security companies in the border ...
(Date:3/15/2016)... Yissum Research Development Company of the Hebrew University ... University, announced today the formation of Neteera Technologies ... biological indicators. Neteera Technologies has completed its first round ... Neteera,s ... from sweat ducts, enables reliable and speedy biometric identification, ...
(Date:3/11/2016)... http://www.apimages.com ) - --> http://www.apimages.com ) - ... Images ( http://www.apimages.com ) - Germany . ... new refugee identity cards. DERMALOG will be unveiling this device, and ... Hanover next week.   --> Germany ... the new refugee identity cards. DERMALOG will be unveiling this device, ...
Breaking Biology News(10 mins):
(Date:5/3/2016)... - And Other Rising Companies ... Those Competitor Biologics  - Biosimilar Drug Producers ... ,  Who are the most important and ... their sales potentials? Discover, in our updated survey, organisations, ... and revenue forecasting. Visiongain,s new ...
(Date:5/2/2016)... YORK , May 2, 2016 ... announces that its technology partner Mannin Research Inc. will ... Ophthalmology (ARVO), which takes place from May 1-5, 2016 ... executives will be meeting with its vendors and research ... explore business development goals and other collaborative opportunities for ...
(Date:4/29/2016)... (PRWEB) , ... April 30, 2016 , ... The MIT ... textile design, the bioLogic team explored how bacterial properties can be applied to fabric ... using Natto bacteria, which move in response to humidity change. The team harvested Natto ...
(Date:4/29/2016)... Denver, CO (PRWEB) , ... April 29, 2016 ... ... on addressing the necessary fundamentals to transform technology into a viable company, CereScan’s ... enable growth. Mr. Kelley, a recognized leader and mentor in the Denver ...
Breaking Biology Technology: