Navigation Links
This beetle uses eggs as shields against wasps
Date:9/14/2011

They lead modest lives among the palo verde, mesquite and acacia trees throughout the Southwestern U.S., laying their eggs on seed pods and defending the survival of their offspring against the parasitic wasp species that attacks their eggs before their young can develop.

They are the seed beetles Mimosestes amicus, living all around us in the trees of Tucson, and yet remaining all but invisible to our eyes or nearly so.

Now, doctoral candidate Joseph Deas in the University of Arizona's Graduate Interdisciplinary Program in Entomology and Insect Science, along with his faculty advisor Martha Hunter in the department of entomology, is peering into their world through his microscope and has discovered something novel: The beetles, whose eggs frequently are parasitized by the wasp Uscana semifumipennis, have a strategy to protect their offspring that goes beyond a helpful habit.

"They're stacking their eggs in order to protect them from these parasitic wasps," said Deas, whose research appears in the Proceedings of the Royal Society B on Sept. 14.

The eggs have eyes

The wasps, called parasitoids because they kill their host rather than just taking advantage of its resources, deposit their own eggs inside the beetles'. The wasp larva gets a head start in life and develops before the beetle larva, hijacking the beetle egg yolk for its own nourishment.

"You can tell when an egg has been parasitized because the egg will start to darken and blacken," said Deas. "The beetle larva by that time will never form because all of the yolk is going inside the wasp larva. And then you can see little red eyes in there; the beetles don't have red eyes. It looks very evil."

As often happens in science, Deas came upon the discovery of M. amicus' strategy through the course of a different investigation.

"I wanted to see how these wasps were performing in different-sized eggs of
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Beetles get by with a little help from their friends
2. Wielding microbe against microbe, beetle defends its food source
3. Cross kingdom conflicts on a beetles back
4. Landscape-scale treatment promising for slowing beetle spread
5. Holy guacamole: invasive beetle threatens Floridas avocados
6. Controlling cucumber beetles organically
7. New Southern California beetle killing oaks
8. Beetle shell inspires brilliant white paper
9. What scientists know about jewel beetle shimmer
10. Inconspicuous leaf beetles reveal environments role in formation of new species
11. Scientists isolate new antifreeze molecule in Alaska beetle
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
This beetle uses eggs as shields against wasps
(Date:12/17/2014)... Dec. 15, 2014 The Defense Logistics Agency is ... and prevent counterfeit microcircuits from entering into its supply ... in-house microcircuit anti-counterfeit initiative dubbed DNA marking. The capability ... their reliability throughout the supply chain. The new quality ...
(Date:12/17/2014)... and Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ) has announced ... 2015-2019" report to their offering. ... upcoming in this market is the increasing demand for ... recording of patient data for quick and correct diagnosis ...
(Date:12/11/2014)... and Markets , http://photos.prnewswire.com/prnh/20130307/600769 ... the addition of the "Biometrics Market in the ... One major trend emerging in this market is ... is important to upgrade biometric solutions to the latest ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... for predicting biodiversity than biology",Research published in the May ... about biodiversity and opens up new avenues for predicting ... patterns. In the article, an international group ... in a river system can be accurately predicted with ...
... commerce of ornamental stones has grown all over ... decided solid support to the aesthetics of natural ... Marble is, undoubtedly, the ornamental stone par excellence. ... sculptural works which constitute the most important pieces ...
... the May 2008 Pediatric Academic Societies and Asian Society ... adolescent obesity negatively impacts vascular endothelial function, which relates ... in the U.S. during the past 20 years and ... The incidence of obesity in children is also increasing ...
Cached Biology News:Biodiversity -- it's in the water 2Development of new techniques to understand marble quality and durability 2Study supports reason for concern in childhood and adolescent obesity 2
(Date:1/22/2015)... Eckert & Ziegler Vitalea Science (EZVS), ... to the pharmaceutical and biotech industry, has announced that ... the position of Director of Science & Technology. , ... experience in drug metabolism and bioanalysis to EZVS in ...
(Date:1/22/2015)... Jan. 22, 2015  Transwestern | RBJ today announces the firm ... space for Shire a leading biopharmaceutical company, at Two Ledgemont ... RBJ,s Robert Richards , president, and Brian Cohen ... the entire five-floor building at 95 Hayden Ave. ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Crystal Diagnostics (CDx) ... that it has received AOAC-PTM Certifications for the six non-O157 ... and O145; collectively referred to as STEC or the “Big-6”) ... colony forming unit (cfu) per 325 g of raw ground ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Controlled Substance ... Alliance, which helps companies check the legal requirements around ... expand to China. , As their international operations ... globally adopting software solutions built as a result of ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2Global Compliance Service for Controlled Substances to Expand to China 2
... - Combined Company Will Have Three Oncology Products in Clinic -, - Lead Candidate ... ... Wednesday, May 28th, at 11:00 a.m. Pacific ... Time -, BOTHELL, WA and ...
... A new study into the potential health hazards ... predicts that the molecules are easily absorbed into ... the molecules could be toxic to humans and ... Calgary biochemist Peter Tieleman, post-doctoral fellow Luca Monticelli ...
... Income Up 132% Year-Over-Year, SHANGHAI, China, May ... WX ), a leading pharmaceutical, biotechnology and medical ... China and,the United States, today announced its selected ... 31, 2008., (Logo: ...
Cached Biology Technology:Sonus Pharmaceuticals and OncoGenex Technologies to Merge 2Sonus Pharmaceuticals and OncoGenex Technologies to Merge 3Sonus Pharmaceuticals and OncoGenex Technologies to Merge 4Sonus Pharmaceuticals and OncoGenex Technologies to Merge 5Sonus Pharmaceuticals and OncoGenex Technologies to Merge 6Sonus Pharmaceuticals and OncoGenex Technologies to Merge 7Sonus Pharmaceuticals and OncoGenex Technologies to Merge 8How buckyballs hurt cells 2WuXi PharmaTech Announces First Quarter 2008 Results 2WuXi PharmaTech Announces First Quarter 2008 Results 3WuXi PharmaTech Announces First Quarter 2008 Results 4WuXi PharmaTech Announces First Quarter 2008 Results 5WuXi PharmaTech Announces First Quarter 2008 Results 6WuXi PharmaTech Announces First Quarter 2008 Results 7WuXi PharmaTech Announces First Quarter 2008 Results 8WuXi PharmaTech Announces First Quarter 2008 Results 9WuXi PharmaTech Announces First Quarter 2008 Results 10WuXi PharmaTech Announces First Quarter 2008 Results 11
Request Info...
Request Info...
1+ mg expected yield of purified protein, expressed in insect cells - excludes cDNA...
... universal bioinformatics software that has changed the ... modular design of BioNumerics allows for integration ... of data employed for the characterization of ... 2-D protein gels, HPLC, VNTR, MLST, SNP, ...
Biology Products: