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Recent News and Articles on the Keywords: pest + 0.26 + life  Related to the article below (Last Update: 8/5/2008)

Chemtura Reports 2008 Second Quarter Results
WELT ONLINE, Germany - Jul 31, 2008
Additionally, the Crop Protection business is dependent on disease and pest conditions, as well as local, regional, regulatory and economic conditions; ...CEM
Source: Google News

… cactorum Immatures and Female Adults under Five Constant Temperatures: Implications for Pest … -
JC Legaspi, BC Legaspi - Annals of the Entomological Society of America, 2007 - bioone.org
... study and other studies, cost-effective pest management strategies ... the effects of
temperature on life stage duration or ... 9, 825; P < 0.001; R 2 = 0.26) (Table 4 ...

The life history responses of the abalone pest, Terebrasabella heterouncinata, under natural and … -
CA Simon, H Kaiser, PJ Britz - Marine Biology, 2005 - Springer
... While the degree of expression of life history responses ... tion of the reproductive
success of pest polychaetes under ... Adult size (mm) 1.35?0.26, 15 a 1.37?0.31 ...
-

PEST STATUS OF NYSIUS CLEVELANDENSZS EVANS AND N. VINITOR BERGROTH (HEMIPTERA: LYGAEIDAE) ON COTTON
A Chinajariyawong, GH Walter, VE Harris - Australian Journal of Entomology, 1989 - Blackwell Synergy
... but prior to 1984 the Rutherglen bug was accorded pest status in ... eggs deposited was
recorded, as was the length of adult life. ... k 0.20= 1.8 f 0.18b I .9 f 0.26b ...

[CITATION] Biological studies on Spodoptera exigua Hb,(Lepidoptera, Noctuidae)-a pest of Medicago sativa L.>
MSA EL SARRAG, E EL KHIDIR - Sudan Agricultural Journal - Khartoum University Press
-

Effect of temperature and cultivar on pea aphid, Acyrthosiphon pisum (Hemiptera: Aphididae) life … -
D Morgan, KFA Walters, JN Aegerter - Bulletin of Entomological Research, 2007 - Cambridge Univ Press
... on a thorough understanding of the biology of the pest, and in ... and Watson (1964)
and used to construct life tables ... 3.4 0.30 2.9 0.29 3.4 0.30 3.3 0.26 16.8 0.88 ...

The life-system approach: A system paradigm in population ecology. -
AA Sharov - Oikos, 1992 - JSTOR
... sawfly (Diprion pini L.) is a serious pest of plantations ... 1. Contribution of ecological
processes in the life-system of ... 2 0.41+0.11 0.68?0.09 0 0.68?0.26 1, 2 ...

[PDF] Insecticide resistance in Liriomyza trifolii
MP Parrella, CB Keil, JG Morse - Calif. Agric, 1984 - potatonews.com
... During the past 10 years, the average effective field-life of an ... was undertaken in
an effort to understand how to control this pest. ... 0.26 mg per ml) strains. ...

Life history ofAphis gossypii on cucumber: influence of temperature, host plant and parasitism -
MJ van Steenis, KAMH El-Khawass - Entomologia Experimentalis et Applicata, 1995 - Springer
... In Europe cotton aphid is an important pest on cucumber in ... Adult life history (days
(5:se; n)) 0.5 (5: 0.09; 40) a 0.3 ... 69,8 (5: 3.41; 37) b 6.7 (5: 0.26; 37) b ...

Feeding activity and life history characteristics of the generalist predator, Chrysoperla carnea ( … -
R Atlihan, B Kaydan, MS ?zg?k?e - Journal of Pest Science, 2004 - Springer
... Feeding activity and life history characteristics of the generalist ... J Pest Sci (2004)
77: 17?21 DOI 10.1007/s10340-003 ... 40 24 2.4?0.26 a 2.6?0.40 a 3.2?0.56 ...

Life tables, key factor analysis and density relations of natural populations of the spotted maize … -
CAO Midega, C Ogol, WA Overholt - International Journal of Tropical Insect Science, 2007 - Cambridge Univ Press
... of the parasitoids (obtained as the pest life stage estimates ... Cropping systems Life
stage Mortality factor 1 2 3 4 ... Small larvae k2 disappearance 0.26 0.15 0.12 ...

Source: Google Scholar

How one pest adapted to life in the dark

A type of beetle that lives its entire life burrowing through stored grain has been found to lack full colour vision, and what’s more the vision it does have breaks the rules. Most other insects have trichromatic vision – they are sensitive to ultraviolet, blue and long wavelength light. In a report published in the online open access journal Frontiers in Zoology, scientists reveal that this beetle has lost photoreceptors that are sensitive to blue wavelengths.

The red flour beetle (Tribolium castaneum) is a common pest that attacks milled grain products such as flour and cereals. It is a cryptozoic insect, meaning that it lives in the dark. Markus Friedrich from Wayne State University in Detroit, along with colleagues from St Louis and Cincinnati, performed genetic analyses to probe the evolution of the species’ vision.

The opsin gene family is central to vision. The authors found that the beetle’s compound eye retina lacked the blue-opsin encoding photoreceptors. Their work also identified the red flour beetle as the first example of an insect species that switches on two opsin genes across the entire retina. This co-expression of genes violates the ‘one receptor rule’ of sensory cells.

The research suggests that the beetle may have gained an evolutionary advantage through this adaptation. Dr Friedrich states that the work “raises the possibility that opsin co-expression is of advantage under conditions where brightness sensitivity is critical.”

The study points the way to broader studies of the development and biology of this pest species. It also suggests that the red flour beetle may be a promising subject for further investigation of cryptozoic animals’ evolution.

###

Notes to Editors

1 Genomic and gene regulatory signatures of cryptozoic adaptation: loss of blue sensitive photoreceptors through expansion of long wavelength-opsin expression in the red flour beetle Tribolium castaneum
Magdalena Jackowska, Riyue Bao, Zhenyi Liu, Elizabeth C. McDonald, Tiffany A. Cook, and Markus Friedrich
Frontiers in Zoology (in press)

During embargo, article available at: http://www.frontiersinzoology.com/imedia/7481023081598632_article.pdf?random=367334

After the embargo, article available at journal website: http://www.frontiersinzoology.com/

Please name the journal in any story you write. If you are writing for the web, please link to the article. All articles are available free of charge, according to BioMed Central’s open access policy.

Article citation and URL available on request at press@biomedcentral.com on the day of publication

Alternative media contact:

Robert Brumfield
Fusion PR
Tel: +001 202 898 200 (ext. 109)
Email: robert.brumfield@fusionpr.com

Frontiers in Zoology is the first Open Access journal focussing on zoology as a whole. It aims to represent and re-unite the various disciplines that look at animal life from different perspectives and at providing the basis for a comprehensive understanding of zoological phenomena on all levels of analysis. Frontiers in Zoology provides a unique opportunity to publish high quality research and reviews on zoological issues that will be internationally accessible to any reader at no cost. The journal was initiated and is supported by the Deutsche Zoologische Gesellschaft, one of the largest national zoological societies with more than a century-long tradition in promoting high-level zoological research.

BioMed Central (www.biomedcentral) is an independent online publishing house committed to providing immediate access without charge to the peer-reviewed biological and medical research it publishes. This commitment is based on the view that open access to research is essential to the rapid and efficient communication of science.

 
 
 
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