Navigation Links
Spiders adjust courtship signals for maximum effect
Date:1/24/2011

e efficacy of communication (seismic signaling) on leaf litter.

"Importantly, this indicates that the spiders likely recognized the difference between habitats and the efficacy of signaling via vibrations on leaf litter," said Gordon.

This efficacy of the seismic signaling for mating was measured via a laser vibrometer, a highly sensitive instrument capable of detecting the barely perceptible vibration signals of these tiny animals. The males send out these signals via body bounces and stridulation (rubbing opposing parts of special "file and scraper" organs) on these environmental surface substrates. The measurements found that such movements made atop leaves transmitted significantly more mating signal vibrations vs. those made upon other surfaces (rock, soil, wood). As a consequence, these different substrates can dramatically affect the spiders' ability to communicate.

While the male spiders did continue the leg taps and body bounces on surfaces that transmit faint or no vibrations (wood, soil, stone), the males also altered their communications to produce significantly more visual signals (raising and arching a foreleg) when placed on soil, rock or wood substrates vs. leaf-litter substrate.

Said Uetz, "In other words, when the seismic signals aren't working due to the environment, male wolf spiders have the ability to vary their signals and shift to another communications mode. They then put more effort into another channel, this being visual cues, in order to get the desired response. We can think of it as going to plan B."

He added that, traditionally, such behavioral flexibility has been considered a hallmark of vertebrate animals but not invertebrates: "These findings suggest that invertebrates have more ability to modify their behavior than has been traditionally thought to be the case. This ability enables them to compensate for the impact that an animal's environment has on its ability to communicate."


'/>"/>
Contact: M.B. Reilly
reillymb@ucmail.uc.edu
513-556-1824
University of Cincinnati
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Dracula orchids and goblin spiders
2. Study: Crickets forewarn unborn babies about spiders
3. Male Australian redback spiders employ courtship strategies to preserve their life
4. Scary ancient spiders revealed in 3-D models, thanks to new imaging technique
5. New species of spiders discovered by UBC scientist in Papua New Guinea
6. Moving in for the winter toxic brown recluse spiders pose danger
7. WHO guidelines on Buruli ulcer need adjustment
8. 4-D software helps adjust for breathing when treating lung cancer with radiotherapy
9. Female human embryos adjust the balance of X chromosomes before implantation
10. Texas A&M study finds courtship affects gene expression in flies
11. A love game: Fish courtship more complex than thought
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Spiders adjust courtship signals for maximum effect
(Date:4/17/2014)... Researchers in France have hit on a novel ... receive the correct and most effective treatment possible., ... the western and developing world. If left untreated, ... to renal failure and other complications. In many ... problem. Clearly a more effective pathological approach to ...
(Date:4/17/2014)... Indiana University researchers have detected new early-warning signs of ... discovery could have far-reaching implications for the diagnosis and ... over 25 million Americans. , "We had not expected ... such early stages," said Ann Elsner, professor and associate ... author of the study. "We set out to study ...
(Date:4/17/2014)... have uncovered a new way the immune system may ... efforts to use immune cells to treat illness. , ... the immunological equivalent of "neighborhood police" specialized squads ... organ, instead of an entire city, the body. , ... Louis have shown that the liver, skin and uterus ...
Breaking Biology News(10 mins):New technique detects microscopic diabetes-related eye damage 2New technique detects microscopic diabetes-related eye damage 3Some immune cells defend only 1 organ 2
... Barbara, CA The Bren School-based authors of a study ... have observed toxicity to marine organisms resulting from exposure to ... toxic under similar conditions. Lead author and assistant research ... both Bren School professors and lead scientists at the ...
... at the University of California, Riverside discovered a tiny fairyfly wasp ... United States until then. Nearly exactly a year later, he ... is well established in the country. Called Gonatocerus ater ... North America from Europe. It lays its eggs inside the ...
... New Rochelle, NY, January 24, 2012The time for commercial development ... and curable with gene therapy deserve access to the technology, ... Wilson, MD, PhD, Editor-in-Chief of Human Gene Therapy ... . Human Gene Therapy and Human Gene ...
Cached Biology News:Nano form of titanium dioxide can be toxic to marine organisms 2Wasp found in upstate New York shows up in Southern California 2Gene therapy is a 'disruptive science' ready for commercial development 2
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: 6 p.m. ... Road, Warrington, Pa. , Details: The Hepatitis B ... a cure for hepatitis B and improving the quality of ... Ball on Friday, April 11 at Warrington Country Club in ...
(Date:1/14/2014)... leading provider of strategic communications services to corporations and organizations preparing ... the United States and Europe , ... returning to the firm,s Washington, D.C. office. ... two years of service as Associate Commissioner for the Office of ...
(Date:1/14/2014)... , Jan. 14, 2014 The largest international ... medicinal plants and therapeutic derivatives thereof has endorsed ... and researchers about the challenges of adulterated herb ... ) The Society for Medicinal ...
(Date:1/14/2014)... In recent years, growing suspicion about the pharmaceutical ... and promotion has led to unprecedented levels of public ... about the insidious impact of commercialization of research, has ... the world’s biggest pharmas for illegal marketing activities, allegations ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3
... Germany will present itself as one of the,world,s ... BIO,International Convention. Under the "Breakthroughs in Regenerative Medicines,in ... into the,latest research results in the area of ... the regulatory framework conditions will be,introduced in a ...
... Corporation (Nasdaq: MATK ) announced that it intends ... 2009 on June 3, 2009, at approximately 4:00 p.m. Eastern ... Martek will conduct a conference call to discuss these results ... call live via webcast by visiting Martek,s web site at ...
... North Carolina And ChinaRESEARCH TRIANGLE PARK, N.C., May ... Health Sciences has signed an agreement with China ... Institute for International Drug Development. Building on strengths ... development, and education, the Institute will help to ...
Cached Biology Technology:BIO International Convention 2009: Research Location Germany Presents Potential in Regenerative Medicine 2The Hamner Institutes Announce Partnership With China Medical City 2The Hamner Institutes Announce Partnership With China Medical City 3