Navigation Links
Predatory beetles eavesdrop on ants' chemical conversations to find best egg-laying sites
Date:8/3/2012

urs.

In the Ecology and Evolution paper, Hsieh, Perfecto and their colleagues show that female lady beetlesespecially pregnant onesdetect the phorid-alert pheromone and take advantage of the ensuing lull in activity to search out safe egg-deposition sites with plenty of food for their offspring. Interestingly, male beetles did not respond to any of the ant pheromones.

For the study, beetles, ants and phorid flies were collected from an organic coffee plantation in the southern part of the state of Chiapas, Mexico, or were reared in the laboratory after field collection from the same site. The insects were placed in a multi-chambered apparatus called an olfactometer, which is used to measure an organism's sensitivity to various odors.

In addition to several olfactometer tests, an egg-deposition experiment was conducted. Pregnant lady beetles were placed in a one-liter container holding a coffee branch with four to six leaves infected with scale insects, 40 Azteca worker ants, and two or three phorid flies. After 24 hours, the coffee branch was removed and examined under a microscope for beetle eggs.

Results of the various tests support the hypothesis that female beetles use the phorid-alert ant pheromone to exploit low ant-activity periods and to locate sites where eggs can be hidden and protected against ant predation after ants resume their normal activity levels.

The authors suggest that such complex interactions may be common in nature, "and their uncommon occurrence in the literature is the product of investigators failing to search for them in the first place."

The results have important implications for the management of the scale insect on coffee plantations. The findings suggest that the conservation of Azteca ants, rather than their elimination, is the best management option, Perfecto said.

"This is counterintuitive because the ants protect the scale insects," Perfecto said. "However, th
'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. New report examines effects of trees killed by bark beetles on wildfire
2. First-ever release of endangered burying beetles in Missouri
3. Plants mimic scent of pollinating beetles
4. Study shows how elephants produce their deep voices
5. Infants exposed to specific molds have higher asthma risk
6. Key function of protein discovered for obtaining blood stem cells as source for transplants
7. American Health Assistance Foundation announces grants to advance promising vision research
8. Lace plants explain programmed cell death
9. Powerful class of antioxidants may be potent Parkinsons treatment
10. Green plants reduce city street pollution up to 8 times more than previously believed
11. New research association started: Magnesium implants shall facilitate bone fracture healing
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/15/2014)... 12, 2014 Research and Markets ... the "Global Facial Recognition Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 Facial recognition is ... Facial recognition system measures the overall facial feature ... mouth, and the distance between eyes. Facial recognition ...
(Date:12/10/2014)... NEW YORK , Dec. 8, 2014 You,ve ... online banking account but can,t remember your password, site key ... birthday? Who was your first grade teacher? ... launches the app that will finally put an ... PINs – 1U TM . 1U leverages a ...
(Date:12/10/2014)... , December 9, 2014 ... BCARD Platform   ... meeting scheduling solutions for business-to-business (B2B) events, today ... leader in mobile near-field communication (NFC), Bluetooth low ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... a world where we create over two quintillion bytes ... and government are grappling with the problem of how ... amount of information. To address the questions surrounding this ... Liebert, Inc., publishers ( http://www.liebertpub.com ) announces the launch ...
... norms of biofuel production. A commentary published today in ... gas (GHGs) emissions from bioenergy production are neglecting crucial ... benefits of biofuels compared to fossil fuels. ... of bioenergy production. Life Cycle Analysis (LCA) is a ...
... 12th International Coral Reef Symposium (ICRS 2012), the world,s ... years, will begin Monday, July 9, in Cairns, Queensland, ... policy makers, managers, and conservationists to present the latest ... the knowledge and findings presented during the symposium, daily ...
Cached Biology News:New peer-reviewed journal on big data launching in Fall 2012 2Environmental benefit of biofuels is overestimated, new study reveals 2Coral reef experts to present latest coral reef science during July symposium 2Coral reef experts to present latest coral reef science during July symposium 3
(Date:12/24/2014)... Vermillion, Inc. (Nasdaq:   VRML), a ... today that investors including Oracle Investment Management, ... several Vermillion directors have agreed to purchase approximately ... stock and warrants to purchase unregistered shares of ... Under the terms of the private ...
(Date:12/22/2014)... Malvern, PA & Brussels (PRWEB) December 22, 2014 ... Education (CfPIE), the global leader of technical training ... Society for Clinical Data Management (SCDM) to ... training and certification programs —providing access to the ... The partnership extends SCDM members with 10% off when ...
(Date:12/22/2014)... 2014  ( www.competitivehealth.com ) — Competitive Health is ... review and advocacy service, has signed an agreement to ... discount health services marketplace. 63% of Americans ... they expected to pay. As part of an ongoing ... Savings is pleased to offer medical bill review and ...
(Date:12/19/2014)... Charm Sciences is pleased to announce that ... Aflatoxin M1 in raw commingled milk is the first ... The peer reviewed report of the validation by Technology ... and Fisheries Research (ILVO-T&V) has been published by the ... most toxic aflatoxin and a known carcinogen, can be ...
Breaking Biology Technology:Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2
... Dec. 27 The "Clinical and Economical,Considerations For ... by,Industry Expert Richard Rosenfeld, RPh, MBA, for Baxa ... for media and,professional reference. The paper is an ... a model for implementation of a successful,program., ...
... SEATTLE, Dec. 26 Cell Therapeutics, Inc.,(CTI) (Nasdaq and ... December 27) at 8:30 am EST to discuss update ... results., Conference Call Numbers Thursday, December ... Pacific 800-218-0204 303-262-2130, Webcast available at ...
... Md., Dec. 26 Sirnaomics, Inc. announced,today ... a variety of Government,Programs. Sirnaomics, Inc. ... 2007, dedicates to advancing RNA interference,(RNAi) Technology ... The company,s multi-targeted siRNA therapeutic programs and,its ...
Cached Biology Technology:'Clinical and Economical Considerations For IV Push Drug Delivery' by Industry Expert Richard Rosenfeld Is Now Accessible on Expert411.com for Media and Professional Use 2Sirnaomics Received Multiple Government Fundings For Its Multi-Targeted siRNA Therapeutics Programs 2Sirnaomics Received Multiple Government Fundings For Its Multi-Targeted siRNA Therapeutics Programs 3