Navigation Links
Feast or fancy? Black widows shake for love
Date:1/17/2014

A team of Simon Fraser University biologists has found that courting male black widow spiders shake their abdomens to produce carefully pitched vibrations and avoid potential attacks by females who otherwise may misinterpret the advances as the vibrations of prey.

The team's research has just been published in the open access journal Frontiers in Zoology.

The team of SFU graduate students Samantha Vibert and Catherine Scott, working with SFU biology professor Gerhard Gries, recorded the vibrations made by male black widow spiders (Latrodectus hesperus), hobo spiders (Tegenaria agrestis) and prey insects.

Scott explains: "The web functions as an extension of the spider's exquisitely tuned sensory system, allowing her to very quickly detect and respond to prey coming into contact with her silk.

"This presents prospective mates with a real challenge when they first arrive at a female's web: they need to signal their presence and desirability, without triggering the female's predatory response."

The researchers found that the courtship vibrations of both species differed from those of prey, but that the very low-amplitude vibratory signals produced when male black widows shake their abdomens were particularly distinctive. "These 'whispers' may help to avoid potential attacks from the females they are wooing," explains Scott.

Simon Fraser University is consistently ranked among Canada's top comprehensive universities and is one of the top 50 universities in the world under 50 years old. With campuses in Vancouver, Burnaby and Surrey, B.C., SFU engages actively with the community in its research and teaching, delivers almost 150 programs to more than 30,000 students, and has more than 125,000 alumni in 130 countries.


'/>"/>

Contact: Marianne Meadahl
Marianne_Meadahl@sfu.ca
778-782-9017
Simon Fraser University
Source:Eurekalert

Page: 1

Related biology news :

1. Lignin-feasting microbe holds promise for biofuels
2. Feast and famine on the abyssal plain
3. Bizarre bone worms emit acid to feast on whale skeletons
4. From feast to famine: A metabolic switch that may help diabetes treatment
5. Researcher finds way to identify aggressive cancers in black women
6. Scientists unearth secrets of Périgord truffles, the culinary black diamond
7. Black bears return to Missouri indicates healthy forests
8. Reversal of the black widow myth
9. Black carbon flowing from soil to oceans
10. Autism in black and white: NIH grant helps scientist study disorder in African Americans
11. Astronomer gets grant to better measure mysterious black holes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... , March 30, 2017 Trends, opportunities and ... and behavioral), by technology (fingerprint, AFIS, iris recognition, facial ... and others), by end use industry (government and law ... financial and banking, and others), and by region ( ... , Asia Pacific , and the ...
(Date:3/28/2017)... , March 28, 2017 ... Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video ... and Region - Global Forecast to 2022", published by ... in 2016 and is projected to reach USD 75.64 ... 2017 and 2022. The base year considered for the ...
(Date:3/24/2017)... , March 24, 2017 The Controller General of ... Mr. Abdulla Algeen have received the prestigious international IAIR Award ... Continue Reading ... ... and Deputy Controller Abdulla Algeen (small picture on the right) have received ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... June 23, 2017 , ... ... a redesigned, easier-to-navigate website for all six of their healthcare job boards. ... dentists, pharmacists, physical and occupational therapists, and biotechnicians, DocCafe.com and the MedJobCafe.com ...
(Date:6/22/2017)... Germany (PRWEB) , ... June 22, 2017 , ... ... is taking over the allergy specialists DST Diagnostische Systeme & Technologien GmbH, thereby ... all know someone who suffers from hay fever, urticaria, asthma, atopic eczema or ...
(Date:6/22/2017)... ... June 22, 2017 , ... ... release of Limfinity® version 6.5, a content-packed update to the Limfinity® framework. , ... a larger and more diverse base of customers among labs and other businesses. ...
(Date:6/20/2017)... NEWTOWN SQUARE, Pa. , June 20, 2017 /PRNewswire/ ... technology, is pleased to announce the issuance of a ... treating gout or hyperuricemia by the U.S. Patent and ... Biotech Inc., a winner of the Buzz of Bio ... , is akin to developing non-drug approaches to ...
Breaking Biology Technology: