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:9/21/2014)... San Diego, have developed a program that predicts the ... genes based on sequences of DNA. They describe their ... embryonic cells in a paper published in Nature ... cells have the same blueprint, the same DNA, although ... of the report. "Skin cells protect, nerve cells send ...
(Date:9/21/2014)... was previously thought, newborn immune T cells may have ... according to a new study led by King,s College ... that of adults, babies may still be able to ... in the journal Nature Medicine . , Our ... of immune cells, including neutrophils which play an important ...
(Date:9/21/2014)... researchers has developed a protein therapy that disrupts the ... original tumor sites, travel through the blood stream and ... This process, known as metastasis, can cause cancer to ... patients who succumb to cancer fall prey to metastatic ... professor of bioengineering who describes a new therapeutic approach ...
Breaking Biology News(10 mins):Program predicts placement of chemical tags that control gene activity 2Immune system of newborn babies is stronger than previously thought 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4
... announced a $20,000 grant from Orvis Company, Inc. that will ... along the "Path of the Pronghorn." For more ... km) migration of pronghorn along the path between wintering grounds ... Grand Teton National Park (GTNP). This led to collaboration with ...
... A mutual curiosity about patterns of growth and development in ... together. Animal scientists Rod Johnson and Ryan Dilger have developed ... use to answer important questions about human brain development. ... from the neonatal period to sexual maturity," said Johnson. ...
... human papillomavirus (HPV) vaccine series across both genders continue ... introduction, suggesting that better patient education and increased public ... from the University of Texas Medical Branch (UTMB). ... of three separate studies published in Cancer, Human ...
Cached Biology News:More good news for pronghorn 2Pig brain models provide insights into human cognitive development 2HPV vaccine trends point to failures in patient education, vaccine programs 2
(Date:9/22/2014)... DUBLIN , Sept. 22, 2014 ... the "Global and Chinese Microcrystalline Cellulose Industry Report ... The Global and Chinese Microcrystalline Cellulose Industry Report 2014 ... state of the global microcrystalline cellulose industry with a ... provides a basic overview of the industry including definitions, ...
(Date:9/22/2014)... (Nasdaq: NEOG ) announced today that net ... year, which ended Aug. 31, was $8,883,000 — a ... the first quarter of last year. Adjusted for a ... share in the current quarter were $0.24, compared to ... increased 15% to $67,599,000, from the previous year,s first ...
(Date:9/22/2014)... , September 22, 2014 ... on a mixed note as the Dow Jones Industrial ... Composite closed at 4,579.79, down 0.30%. The S&P 500 ... trading session, six out of ten sectors finished on ... Index ended the day at 751.48, up 0.10%, with ...
(Date:9/22/2014)... BETHESDA, Md. , Sept. 22, 2014  Spherix Incorporated ... fostering and monetization of intellectual property, today announced that the ... patent to the Company in the month of September that ... The issued patent is: USRE45,121 , ... 2014 , Filing date: Dec 27, 2012 ...
Breaking Biology Technology:Global and Chinese Microcrystalline Cellulose Industry Report 2014 2Neogen reports 13% net income increase 2Neogen reports 13% net income increase 3Neogen reports 13% net income increase 4Neogen reports 13% net income increase 5Neogen reports 13% net income increase 6Neogen reports 13% net income increase 7Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 2Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 3Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 4Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 5Spherix Notified by United States Patent & Trademark Office of New Standard Essential Patent Issued to Spherix 2Spherix Notified by United States Patent & Trademark Office of New Standard Essential Patent Issued to Spherix 3
... , CAMBRIDGE, Mass., Dec. ... leaders in technology development and product integration in cleantech, ... for technology abstracts and business presentations. , Now in ... Nano Science and Technology Institute (NSTI), and the Clean ...
... RESTON, Va., Dec. 2 /PRNewswire-Asia-FirstCall/ -- ... EMDY), a leading,producer and distributor of infant and children,s formula, ... Company will be featured,in the Spring issue of US Food ... 250,000 executives in the food and beverage industry. , ...
... , ... through,extraordinary times; markets are in turmoil and uncertainty is part ... industry has been,relatively immune to the economic downturn, because illness ... midst of the difficult times this year, the pharmaceutical,giant Johnson ...
Cached Biology Technology:Deadline Approaching for Largest Commercialization Event for Nanotech & Clean Technologies 2Deadline Approaching for Largest Commercialization Event for Nanotech & Clean Technologies 3Emerald Dairy To Be Featured in Spring Issue of US Food and Drink Executive 2Pharma and Biotech Leaders to Converge in China at Asia Pharma R&D Leaders 2010 Summit 2Pharma and Biotech Leaders to Converge in China at Asia Pharma R&D Leaders 2010 Summit 3
... Agencourt offers single pass sequencing of ... is fueled by our high performance ... million Phred20 bases per day. The ... pass sequencing customers are rapid turnaround, ...
... Facility , Galaxy LIMS, Sophisticated Bioinformatics , ... scientists ,We offer individual sample sequencing of ... for single or double strand publication quality. ... DNA of interest is 1.3 to 7 ...
... sequencing of individual research samples, including PCR ... Agencourt's world-class, high performance sequencing pipeline processes ... The key benefits of Agencourt's QuickLane ... 48 hour sample turnaround, industry leading sequence ...
Shotgun library construction and high-throughput DNA sequencing of microbial genomes, BACs, adenoviruses, phosmids and cosmids. LIMS tracking utilizing Geospiza's Finch system....
Biology Products: