News

By Rose De Clerck-Floate, Chair of the ESC Achievement Awards Committee
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On June 4 I was on a high despite it being the end of a long work day, and a Monday no less. This is because I had the pleasure of informing two distinguished Canadian entomologists that they will be this year’s recipients of our Society’s most prestigious awards; the Gold Medal and the C. Gordon Hewitt Award.

Last December when embarking on my duties as Chair of the Achievement Awards Committee, I had no idea of how the whole process of serving on the Committee which receives and reviews the nominations and then selects the nominees for final ESC Board vote, would profoundly expand my understanding and appreciation of both our entomologist colleagues and our Society. First, I thoroughly enjoyed working with the Committee, which was made up of well-respected and accomplished entomologists in their own right. Secondly, I was taken aback by the quality of candidates, which made our job of choosing only one nominee per award challenging. Finally, I was impressed with the nomination packages themselves, and by how eagerly and selflessly our members rose to the large task of pulling together these rather detailed and long documents during their busy lives.  It spoke volumes of the dedication, volunteerism, and team-work of our members, and ultimately, how vibrant we are as a Society.

When I placed the calls, I was both excited and nervous; the latter because there is a fair dash of humility that comes with realizing that these people, even though they are acquaintances and I have interacted with them in the past, all of a sudden stand out as amazing both academically and in their capacity for giving back to the communities they are part of. I honestly had no idea how accomplished they were until reading the nomination packages. Wow! Quickly though, their own humility shone through the phone call; both were thrilled and honored by the news, with one blurting with heartfelt candor, “I have always so loved entomology, and to be recognized by my fellow entomologists means a great deal to me”.

So what our current Prez, Michel Cusson, told me in December is very true. Having the opportunity to tell someone that they are being honored by peers for their contributions to science and society is really a very special moment. And for someone (i.e., me) who has never taken the time to nominate another for one of the awards our Society has to offer annually, this experience also has transformed me. I am now looking more closely at my colleagues; appreciating who they are and what they are contributing to Canadian entomology, and seeing future nominations everywhere! My hope is that others will be inspired down the same fulfilling path of recognizing and giving on behalf of our Society.

After all this, I guess I should let you know who the recipients of this year’s honors are: congratulations to Dr. Felix Sperling for being the awardee of the Gold Medal, and Dr. Brent Sinclair, awardee of the C. Gordon Hewitt Award…….more details to come.

Dr. Felix Sperling, recipient of the ESC Gold Medal

Dr. Brent Sinclair, recipient of the ESC C. Gordon Hewitt Award

Un évènement à ne pas manquer!

Les 1 et 2 novembre 2012, la SEQ tiendra à Boucherville sa 139e réunion annuelle sous le thème « Entomologie et agriculture biologique : de l’écologie à la pratique ».  Lors du symposium, plusieurs conférenciers de prestiges viendront présenter les dernières avancées en agriculture biologique, les applications de leurs recherches ainsi que les défis à relever dans le futur en agriculture biologique. En plus du symposium, plus d’une trentaine de présentations étudiantes et professionnelles seront données sur différents aspects de l’entomologie agricole et forestière lors de la première journée du congrès.  Pour plus de détails sur le programme et pour vous inscrire, consultez notre site Web à www.seq.qc.ca

An event not to miss!

On November 1st and 2nd 2012, the SEQ will hold its 139e annual meeting in Boucherville under the theme of “Entomology and organic agriculture: from ecology to practice”.  During the symposium, prestigious speakers will present the latest advances in organic agriculture, practical applications of their research and challenges in the future of organic agriculture.  In addition to the symposium, more than thirty talks from students and professionals on agricultural and forest entomology research will be given during the first day of the meeting.  For more details about the program and to register visit our website at www.seq.qc.ca

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Sophie Rochefort

Présidente, Societé d’Entomologie du Québec

By Adrian Thysse, Photographer and  co-organizer of the JAM 2012 Photo Competition
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The Joint Annual Meeting of the Entomological Society of Alberta and the Entomological Society of Canada will be hosted in Edmonton, November 3-7, 2012 . All participants of JAM 2012 are eligible to participate in the photo competition.

The theme for the competition will be Canadian Arthropods, in the following categories:

1. Dead–pinned or preserved specimens
2. Alive–in the natural habitat
3. Dead or Alive–predators with prey
4. Alive with mites–insect mite symbiosis (Sponsored by International Journal of Acarology editor, Dave Walter)

$150 will be awarded to the winner for each category and the “Alive with mites” winner may be offered the opportunity to be a cover illustration for the International Journal of Acarology.

So far the judges include John Acorn, David Walter and myself, and we are looking forward to a wealth of submissions from all the many entomologists, amateur or professional, that will be attending JAM 2012.

Nothing to submit? There is a whole season of delicious bug photography still ahead!

The closing date for submissions is October 30, so get your macro lens on and get cracking! We are looking forward to a biodiverse flood of entries!

Sympetrum sp. Photo by Adrian Thysse

Originally posted at Splendour Awaits http://bugs.adrianthysse.com/2012/06/jam-2012-photo-competition-canadian-arthropods/

Stick Insect Baculum extradentatum

Physiology Friday is a monthly column by UWO PhD candidate Katie Marshall and will feature new Canadian research on insect physiology.

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Nitric oxide (NO) is usually overshadowed in fame by its more famous cousin laughing gas, but it’s difficult to think of many simple molecules that have such a variety of important biological functions.  While NO only lasts a few seconds in the free gaseous state in the blood, it has been implicated in processes that involve everything from immune function to neurotransmission.  One important role for NO is in the cardiac system, where it functions as a vasodilator and in vertebrates it slows heart rate, while in insects it has the opposite effect.

Stick Insect Baculum extradentatum

Baculum extradentatum photo by Sara da Silva

Most of the research about the physiological functions of NO has focused on vertebrates, but recent work published in the journal of Cellular Signalling by graduate student Sara da Silva and her postdoctoral fellow mentor Rosa da Silva in the lab of Angela Lange (University of Toronto Mississauga), has shown that, unlike other insects, the Vietnamese stick insect Baculum extradentatum can respond to NO like a vertebrate.

“Our initial research interests in cardiac physiology were influenced by earlier work indicating that stick insect hearts are innervated and can be modulated by endogenous chemicals [like NO],” says study director and University of Toronto Biology professor Angela Lange.  “It is for this reason that we chose this understudied organism, which contains a simplified cardiovascular system that can be considered a model for work on other cardiac systems.”

The researchers first attempted to find the natural source of NO in the stick insect by removing hemolymph (blood) samples and staining for the presence of an enzyme that produces NO.  Then they examined the effects of NO on heart rate by dissecting the dorsal vessel out and maintaining it in a Petri dish with physiological saline.  They could measure heart rate through the placement of electrodes on either side of the dissected heart, and monitor the effects of various chemicals on the cardiac activity of the stick insect.   They also could examine whether heart rate was mediated by the central nervous system by leaving the nervous system attached or not.

insect heart rate

The effects of nitric oxide on the heart rate of B. extradentatum. Figure 3 from da Silva et al. 2012

They found that the hemocytes (blood cells) of the stick insect were producing an enzyme that was similar to the enzyme other animals use to produce NO.  In addition, the more of a chemical called MAHMA-NONOate (which produces NO) they added, the slower the stick insect hearts beat.  This surprising effect was completely opposite to what had been found in other insects and was more like the response of the vertebrate heart.

“Insects have evolved different strategies depending upon life history, and have co-opted different messenger systems for this success,” says study author da Silva. “We need to understand the full ecology of all species to finally appreciate the factors involved.”

Using the same setup, they also tested other components of a system of compounds that they thought might be involved in the pathway that produces NO that leads to decreased heart rate in B. extradentatum.  They believe that NO is produced in the hemocytes, travels to the wall of the heart, and then leads to the production of a messenger molecule that decreases heart rate.

Schematic diagram of the proposed regulation of cardiac activity in B. extradentatum by the gaseous signaling molecule, nitric oxide (NO)

Schematic diagram of the proposed regulation of cardiac activity in B. extradentatum by the gaseous signaling molecule, nitric oxide (NO). Figure 7 from da Silva et al. 2012.

“This study further emphasizes the evolutionary links between the physiological processes of vertebrate and invertebrate systems,” says da Silva. “Our findings suggest that signaling molecules (such as NO) common to both types of organisms can have similar effects on cardiac activity.  These novel findings demonstrate that the study of vertebrate systems can be complemented with studies in model invertebrate organisms.”

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da Silva, R., da Silva, S.R. & Lange, A.B. (2012). The regulation of cardiac activity by nitric oxide (NO) in the Vietnamese stick insect, Baculum extradentatum, Cellular Signalling, 24 (6) 1350. DOI: 10.1016/j.cellsig.2012.01.010

Today’s post comes from Julia Mlynarek on behalf of the 2012 ESC-ESAlberta JAM organizing committee.

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Dear students,

As you may have heard, there will be a workshop on the publication process called “Perspectives on the Publication Process” during the 2012 ESC-ESAlberta JAM.

Publishing research in a high quality, peer-reviewed scientific journal remains an important goal for us, but the process can be difficult to navigate, be frustrating, and create a great deal of anxiety and stress. On the Sunday morning immediately before the 2012 Joint Annual Meeting (4 November) in Edmonton, the Entomological Societies of Canada and Alberta will be jointly hosting a workshop at the JAM venue about the publication process. The overall goal is to provide attendees (students and seasoned professionals alike) with practical information about all aspects of publishing.

The organisers would like your input on the topics that will be discussed during the workshop. Please fill out this short (2 questions) survey by June 20th (I need to tally the scores and forward them to the organising committee).

The link to the survey – http://www.surveymonkey.com/s/KYN56MK

Please take the time to fill it out. It will ensure that you have a say in what is discussed!

CONTACT THE SOCIETY

Association Coordinator: info@esc-sec.ca

ESC President: ESCPresident@esc-sec.ca

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