Apr 132011
 

My MSc Defense Poster

 

The Quest for the Master’s Degree is nearing it’s conclusion! If you’ll be in the Guelph area on Monday, I invite you to stop in and see what I’ve been up to for the past 3.5 years. I can promise plenty of taxonomic discussion (hopefully well defended by yours truly), plenty of pictures and diagrams, and the world premiere of 3 species new to science! There will be Timbits and coffee for those who require further encouragement/bribes.

The last month has been all over the place, with periods of extremely long days full of final revisions and paperwork, and an eerie academic Limbo without needing to work on my thesis for the first time in years. There’s always work to be done however, and I’ve been preparing the chapters for peer-reviewed publication. Once everything is said and done, I’ll be doing a series of posts reflecting back on my first graduate degree; the highs, the lows, and some tips for those considering doing graduate work in taxonomy. Until then, have a good weekend, and I’ll see you on the other side!

Apr 112011
 

This post is going to be longer and a little more technical than normal; feel free to jump in and out, or just check out some of the photos on your way to the conclusions. Although I may come across as critical and occasionally cynical at times, I’m not picking on anyone just to be a thorn, but rather to promote scientific discussion; I fully encourage you to join the discussion in the comments section. Finally, in the spirit of full disclosure, a portion of my graduate research was funded via the NSF Tree of Life grant behind this paper (although neither myself nor my research contributed to this project in any manner that I’m aware of), and one of my academic advisors is a co-author on the paper.

Asilidae with Prey - Ecuador

Robber Fly with Prey - Asilidae - Ecuador

Despite my best efforts here at Biodiversity in Focus, research on flies very rarely makes the mainstream media (besides mosquitoes, malaria and Drosophila of course), so when one of the most important papers on fly evolution was released and started making the science blog circuit, I was excited to see people taking an interest in Dipterology! There was one problem however, which is not limited to the blogosphere and this paper, but has been an increasingly common trend in insect systematics: the blind acceptance and assumption that a new phylogeny is the definitive answer because the researchers used an ever increasing number of genes. One influential blogger, who’s also an evolutionary entomologist, summarized the results of the Diptera tree of life as such:

But they’re solid results, since they’re based on lots of molecular data and the branch positions are well supported.   — Jerry A. Coyne, Ph.D

Similarly, the research team who published the tree are encouraging the idea that their results are infallible by labeling their work the “New Periodic Table of Flies”. A bold statement, and one that many taxonomists might be hesitant to make as it implies that they don’t expect future studies to return different relationships, much as the periodic table of chemical elements is not about to change. An analogy like this requires a strong body of evidence to support it, so let’s take a look at what they did and how the Diptera family tree looks!

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Feb 172011
 

It’s a been a busy period for the Canadian Journal of Arthropod Identification, and today I bring you lucky #13, the final volume chronicling the horse & deer flies of Canada east of the Rockies. Although Canadian tabanids were relatively recently treated by H.G. Teskey (1990),  Anthony Thomas has now updated the distributions for these flies, and has greatly increased the number of illustrations, simplifying the identification of these beautiful brachycerans.

Atylotus bicolor Tabanidae horse fly

Atylotus bicolor (Wiedemann)

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Feb 102011
 

The latest volume of the Canadian Journal of Arthropod Identification was published recently and is the first in a series on the Staphylinidae of Eastern Canada. Coordinated and authored by Adam Brunke, this first volume provides a key to all of the rove beetle subfamilies and tribes of the Staphylininae found in eastern Canada (and adjoining US states, termed ECAS by Adam). In addition to these keys, Adam has treated the species of the Staphylinina, and has plans to further coordinate and complete the treatment of the eastern Canadian Staphylinidae in due time (it might take awhile considering the rove beetles are the largest family of animals in the world). With plenty of stunning images and an unconventional key structure designed to increase usability for even the most novice of entomologists, Adam is well on his way to bringing these tiny yet important beetles into the public!

Xantholinus elegans by Dave Cheung Staphylinidae Insect Beetle

Photo by Dave K.B. Cheung

Reference

Brunke, A., Newton, A., Klimaszewski, J., Majka, C. and Marshall, S. 2011. Staphylinidae of Eastern Canada and Adjacent United States. Key to Subfamilies; Staphylininae: Tribes and Subtribes, and Species of Staphylinina. Canadian Journal of Arthropod Identification No. 12, 20 January 2011, available online at http://www.biology.ualberta.ca/bsc/ejournal/bnkmm_12/index.html, doi: 10.3752/cjai.2011.12. (Open Access)
Jan 202011
 

Lately I’ve showcased a number of scientific papers that I’ve dubbed “Cool Science”; today is no exception, except this paper is cool for what should be all the wrong reasons. But let me start at the beginning.

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Jul 122010
 

Natural-born talent is something of a rare occurrence, with athletes like Mantle or Gretzky, or composers like Beethoven or Bach only coming along once or twice a generation. But does natural-born talent apply to a field like taxonomy? Are some people more adept at recognizing the differences and similarities between species, perhaps better connected to the “natural order”? In her book, “Naming Nature; the clash between instinct and science”, Carol Kaesuk Yoon examines not only this idea but also provides an historical account of how taxonomy has been done, from early hunter-gatherers to today.

Naming Nature by Carol Yoon Cover

Image from www.carolyoon.com

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May 212010
 

Thought I’d pass along this golden egg, the Entomological Society of Canada has recently been given permission to scan and publish all 3 volumes of the Manual of Nearctic Diptera on their website, and it’s 100% free! The “Manual”, as it’s referred to, is as close to a Bible for North American dipterists as you can get, and includes keys to all* the genera of flies found north of Mexico! It’s been out of print for awhile now and bound copies are hard to come by (I just recently received a full like-new set this winter, and I’ve been searching for 4 years), which makes a digital (and searchable) version a real plus!

Here’s a quick breakdown of what’s in each richly illustrated volume:

Vol. 1 – Morphology and Terminology (great reference), Key to Families (adults and larvae), Keys to genera for all Nematocera (Culicidae – mosquitoes, Tipulidae – crane flies, Simuliidae – black flies, etc) and Orthorrhapha (Stratiomyidae – soldier flies, Tabanidae – deer and horse flies, Asilidae – robber flies, Bombyliidae – bee flies, Empididae – dance flies, etc)

Mosquito sitting on log in Ontario

Time to start ID'ing my Nematocerans, like this Mosquito (Culicidae)

Vol. 2 – Keys to genera for each of the following; Aschiza (Syrphidae – flower flies, Phoridae – scuttle flies, Pipunculidae – big-headed flies, etc), Calyptratae (Muscidae – house flies, Calliphoridae – blowflies, Tachinidae, Sarcophagidae – flesh flies), and most importantly the Acalyptratae (Micropezidae – stilt-legged flies, Tephritidae – fruit flies, Drosophilidae – vinegar flies, Sphaeroceridae – lesser dung flies, Ephydridae – shore flies, etc)

Soldier flies are your's to discover, like this <i>Stratiomys adelpha</i>

Soldier flies (Stratiomyidae) are your's to discover, like this Stratiomys adelpha

Vol. 3 – Phylogeny and classification of the Diptera

You can download your copy of the Manual here, and while you’re there check out some of the other titles that have been made available as well, including most of the Canadian Handbook Series, detailing some of the major insect and spider groups found in Canada! Thanks to the folks at Agriculture and Agri-Food Canada and the Canadian National Collection of Insects, Spiders, and Nematodes, and the Entomological Society of Canada for making this possible!

* – all genera as of the late 1980’s that is, there have been a few changes since then, but this will still give you a great headstart
Apr 212010
 

Although slightly modified from what E.O. Wilson actually said (birds, blogs, same thing right?), the title is most certainly true! Yesterday I introduced you to my blogosphere project, where I began looking at how insect blogs are related. Today, you’ll see the piece de resistance, and we’ll talk a little about what we see! Hold on tight and get ready for a bloggy family reunion!

Drum roll please…. dadadadadadadadada….

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Apr 202010
 

After my post about the blogs that I check daily, Alex Wild commented that someone should map out the connections between the bug blog community, and I thought what better way to do so then to apply some phylogenetic systematics to the blogging community! It was also good timing for this project, as Willi Hennig’s birthday is April 20, and I thought it’d be an interesting tribute to the man who revolutionized the field of taxonomy and systematics. So without further ado, I present to you something that I’m sure will be gracing the cover of Nature in the near future and which will set me up for the first Nobel Prize awarded to a blog:

A Phylogenetic Analysis of Entomology Blogs: A Blogosphere tribute to Willi Hennig

Willi Hennig - The Father of Modern Phylogenetic Systematics

Courtesy of Wikipedia.org

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