Aug 172010
 

I think the long days are starting to catch up with me, I couldn’t bring myself to get out of bed to go birdwatching this morning! The extra hour of sleep was well worth it though, and I enjoyed a simpler breakfast today of PB on toast and some cereal. We had the day to explore around the main ACG station, so myself, Joel G, Joel K, Andrew and Jeff journeyed to a picturesque overlook that also happens to be a nice, open hilltop. Of course it’s taped off for safety’s sake (the ladder up the side of the building seems to be falling out of the wall) but we didn’t attempt the full climb and just stuck around the base. The sun was fighting for some space today, but we had some pretty good luck when it did break through. Something that I hadn’t seen before was huge congregations of dragonflies floating up above where the flies and other insects were looking for a mate, seemingly feasting on the buffet of bugs. Easily 100 dragonflies were visible at any given time! Really the only exciting Diptera finds were some large robber flies (Asilidae), which were gladly claimed by the group of asilidologists back at camp, and a few rather large grasshoppers. Of course, by rather large I actually mean the length of my pointer finger…

Costa Rica Giant Grasshopper green brown

Click to Enlarge

It wasn’t just insects at the top of the hill though, as we saw some soaring raptors, and had a visit from a large troop of white-headed capuchin monkeys (Cebus capucinus)…

White-headed Capuchin (Cebus capucinus) Costa Rica

The rain chased us off the hill shortly after, and we had a long, rainy afternoon to pin insects and rest up. After dinner a small group of us decided to go on a “short” night walk with the hopes of finding a snake or two. We didn’t find any snakes, but we did see a possum, a few nightjars, and a spectacled owl! It was pretty fun calling in the owl and patiently scanning the trees in the dark for signs of movement. Ultimately it sat right out in the open for us and I was even able to get a few record shots of it. A pair of Pacific screech owls back at the station, and we called it a night!

MTC…

Aug 162010
 

Our day started early again at 5:45 to catch some birds prior to breakfast. I really wasn’t feeling the breakfast this morning, so a small meal and then we loaded the school bus to get to our day trip location. Today we went partially up a local volcano to the San Cristobal Research Station, one of the outposts for the every caterpillar project I mentioned yesterday. The road was rough and the bus shocks poor, so it was a bit of a bouncy ride, but almost as soon as we got out of the bus and into the station the sun came out and there were quite a few flies out and about. Perhaps I should correct myself, there were a lot of micropezids flying! Within minutes of entering the jungle we found a tree fall where some Scipopus-like flies were freshly emerging and pumping hemolymph into their wings. I can’t positively identify the species to genus, but it was great to get a glimpse into the possible larval habitat. As we walked through the forest, it seemed as if everytime we looked up there was another species and a different genus flying nearby. I believe I ended up with 9 or 10 species in 6 or 7 genera and a total of almost 30 specimens. A very productive day for me, with specimens contributed by several people from the group. The rains set in right as we came back for lunch, and unfortunately stayed in for the remainder of our time at the station. We left a little early and made our way back to the main ACG station where we’re staying and the sun was shining, so some of us ended up jumping off the bus and walking the final few kilometres back to the station looking for more flies. Unfortunately they seemed to have gone into hiding early tonight, so instead we did some birding and saw a number of interesting species including Crested Curacao, a large chicken like bird with a bright yellow beak and ornate head feathers. A cold shower to get rid of a day’s grime, a brief dinner, and I was pinning away with all my new material.

The bus was a little slow this morning, taking 2 hours to do what normally would take 45 minutes in a 4×4 truck apparently. It certainly gave us plenty of opportunities to enjoy the lack of legroom and shocks…

I had my first Coke since leaving for Costa Rica 2 weeks ago, and man was it good. So much for going cold turkey…

I’ve now seen 3 monkey species (howler, Geoffrey’s spider, and white faced capuchin), white-tailed deer (weird, I know), agouti, bats, a strange ground-hog like creature, and something rustling through the undergrowth like bugs bunny. Pretty good mammal list for a day’s work!

The unidentified genus:

Unidentified Micropezidae fly stilt-legged

MTC…

Aug 152010
 

Costa Rica Bug of the Day

Click to Enlarge

Tonight I’m looking for the ordinal scientific name (5), and the common name (2). There are bonus points available here, but because people have been doing so well I’m not giving any hints about how to get them. You’ll just have to give me more information and hope it’s what I’m looking for! I’ll award points and give the answers once I’m back in Canada next week. Have fun!

Aug 152010
 

Today started good and early while we got our gear repacked to head to the northwestern region of the country to spend a few days in the Guanacaste Conservation Area. The tour bus picked the people from our hotel up shortly before 8, and after a minor detour back to pick up the forgotten, we were on our way north! Unfortunately I slept most of the way up, and when I wasn’t sleeping I was writing blog posts, but there were some rather remarkable landscapes and sections of habitat that we drove through. The most impressive was probably Rincon de la Vieja, an active volcano that reached high into the clouds and had some fantastic secondary outcroppings in the foreground. We stopped for lunch in Liberia, and fended off the honey bees (Africanized perhaps?) throughout the course of our buffet meal. We arrived at the Guanacaste Conservation Area around 2:30 and quickly got ourselves set up in our rooms and ready to jump into the jungle. Within minutes of leaving the main station we had seen 2 troops of white-faced spider monkeys, and a lone howler monkey hanging out in the tree tops. Although the clouds had rolled in and the tropical sun was starting to go down, we still had a number of interesting insect finds, if not flies. Dinner was pretty good, better than predicted at least, and we then sat down and introduced ourselves and pointed out which families we work on and which we’d like material, it was pinning any insects we may have found and some cards before bed. The station and habitat around here looks great, so it should be a really exciting week of collecting.

On the way back to the lodge we ran into Dan Janzen and Winnie Hallwachs, two big-time ecologists who are currently trying to identify every moth, skipper and butterfly within the conservation area using DNA barcoding. They had just run across a boa, which we couldn’t refind unfortunately, but hopefully we’ll see more in the next few days!

It wouldn’t be ACG without a heavily parasitized caterpillar:

Lepidoptera caterpillar parasitized by wasps with coccoons emerging

And everybody likes monkeys!

Geoffrey's spider monkey adult and baby costa rica

Click to Enlarge

MTC…

Aug 132010
 

Sorry there wasn’t a bug of the day yesterday, I ran out of steam and couldn’t get an image edited before I fell asleep! Here’s today’s:

ICD7 Logo

What’s this you say? A graphical representation of a fly? Well today I’m looking for one of the families that this fly could be based on the head morphology (I’m giving you a break since the wing veination isn’t really visible). I’ll give 5 points to each correct family name (scientific or common). Have fun, and spelling counts!

Aug 132010
 

The long days and late nights finally caught up with me this morning, so I slept in until a little after 8. I know, pretty adventurous of me! I felt much better this morning than the last few mornings however, and refreshed for the last 2 days of the conference and the field work following. The plenary session this morning was by Marty Condon, an ecologist/evolutionary biologist who works on the speciation patterns of a tropical genus of fruit flies (Tephritidae). Her research shows that 3 closely related but distinct species of fruit flies utilize 3 different regions of the same species of plant (one laying eggs in the flowers, one in the seed heads, and one in the stems I believe), a phenomenon that is relatively unheard of elsewhere in nature. When we think of niche partitioning, we generally think of one species as parasite and one species as host, so to have 3 species on the same plant at the same time and not getting confused over which of the other species they should be mating with (they look very, very similar until you look very closely at wing patterns and female ovipositor shape) or where to insert their eggs is pretty remarkable. Further proof that evolution is amazing and that assumptions can never be made about the natural world!

The rest of the day I spent in a symposium on using new technologies to increase the efficiency of Diptera taxonomy. There is a large push in the systematics community in general to develop and implement database systems at various stages of the taxonomic process, from species capture and curation, through to description and analysis of species, and finally to dissemination through resources such as keys or resources like the Encyclopedia of Life. The symposium today highlighted several models of these databases and briefly explained how each is being used, and highlighted the utility of each and where improvements might need to be made. This area of research (bioinformatics) really resonates with me, and I’m hoping to help implement and develop some of these programs during the course of my Ph.D. (eventually…). I signed up to participate in a half-day workshop learning how to use one of these systems, ScratchPads, and I’ll report back tomorrow night how that goes and my initial impressions. At the end of the day myself and most of the rest of the Ottawa and Guelph student crew caught a cab to downtown San Jose to have a nice dinner out at a restaurant that was recommended to us as the best restaurant in Costa Rica (Tin Jo Asian Restaurant)! The food fully lived up to the hype, with some fantastic appetizers and the very best curry I’ve ever had, and all at reasonable prices! I’d be remiss if I didn’t mention the sorbet sampler we had for dessert, with the passionfruit being my favourite of 5 unique flavours. Add in an extremely friendly front house manager recalling his stories of Canadians and our use of the word “eh” and it was quite the evening. One more day of the congress left, and then back into the wilds for some more collecting and shooting before heading home!

Most of this morning’s new digital tools talks were recorded and posted online, including my advisor Steve Marshall’s talk (although it seems the messed up and only recorded the audio, plus I can’t get it to work at the moment…). Additionally, all of the Powerpoint presentations themselves will be uploaded to The Diptera Site (they will probably be listed under the attachments link, although there are only 2 up there as of now)

Another buzz-worthy talk today was on the potential utility of the reflective properties of wings as thin films as identification and taxonomic characters. What this complicated sentence means is that when you shine a light on fly wings and have a black background behind them, a full spectrum of colours will shine off the wings (much like the rainbow you see on the outside of a bubble) and that there is evidence that these patterns might be species specific! Some really amazing photographs of these patterns. I’ll definitely be checking out the wings of my micropezids as soon as I get back to Canada!

Stores close really early down here (like 7pm at the latest for most it seems).

We saw a surprising number of “ladies of the night” openly working the corners of downtown San Jose on our cab ride back to the hotel. Definitely didn’t expect that profession to be so easily spotted!

I’ve included some (mostly poor) photos of some familiar faces giving their talks. I’ve also put in a few of the other people who have been doing talks:

Andrew Young Presenting at ICD7

Andrew giving his talk on Platycheirus

Gil Goncalves Miranda Presenting at ICD7

Gil introducing one of his 3 talks at this congress

Morgan Jackson Presenting at ICD7

Me, presenting my work (thanks Joel for snapping the shot!)

Joel Gibson Presenting at ICD7

Joel Gibson, a friend from Ottawa presenting his work on Conopidae

Michelle Locke Presenting at ICD7

Michelle Locke, another friend from Ottawa discussing Dasysyrphus

Monty Wood Presenting at ICD7

Dr. Monty Wood, one of the preeminent Canadian dipterists, talking about Tachinids on Wednesday

Dr. Marty Condon Presenting at ICD7

Dr. Marty Condon giving her Plenary Address on Tephritidae speciation

Aug 122010
 

I think the long days of intellectually stimulating talks are starting to stack up against me, so I slept in an extra half hour today! I know, I know, lazy! I still made it to the plenary session on time, and I’m certainly glad that I did! William Eberhard was today’s speaker, and he was discussing several mechanisms of sexual selection. He showed some fantastic SEM (scanning electron microscopy) shots of weird Sepsidae fore legs modified to hold female’s wings during copulation, a short clip of X-ray video showing the internal structure and function of Tsetse fly mating (Glossinidae) and discussed the different ways in which female and male insects are constantly competing to increase their own reproductive fitness. A very informative talk, and one that I learned quite a bit of relevant information from. After the morning coffee break I sat in on some tachinid talks, and then headed over to the Syrphidae symposium to watch a streak of Ontarians give their talks. Gil, Andrew and Michelle all did a great job with their presentations, and I think each received some nice feedback from those in the audience. Lunch was a little different today, with lots of seafood and some Costa Rican dishes. Not as good as yesterday, but still ok since it was free! The early afternoon brought more Syrphidae talks, including Gil’s discussion of affordable technology for imaging fly genitalia, a talk which I was a co-author. Again he did well, and there were a lot of people who stopped in to see the talk. I believe we’ll be putting a note out detailing some of our methods in Fly Times, the newsletter for the North American Dipterists Society, in the near future. The best symposium of the entire conference followed the afternoon coffee break, with the Acalyptratae being on display! Of course I may be biased since I gave 2 out of the 7 talks, but I think it was still the best symposium. I presented my work on the Tephritidae of Ontario, the paper I submitted a few weeks back, as well as an overview of my Master’s thesis work. Both were well received, with several questions after each, and I had a couple of people come up to me afterwards to discuss some points further. I’m definitely glad to be done with my talks now, although I wasn’t too worried about either.

I had a bit of a rushed evening however when I realized that I hadn’t received a ticket to the banquet with my registration package. I ended up running back up the road to our hotel to find my receipt and make sure I had indeed paid for it, then scooping someone’s cab and getting back to the conference centre, only to find out it was no big deal and that they had a full checklist anyways! Oh well, at least I didn’t miss the bus at least. The banquet was a bit different than other conference banquets I’ve been to. The guest speaker was Dan Janzen, who is in the process of trying to identify every caterpillar, host plant, and parasitoid within the national park that I’ll be traveling to this weekend. Unfortunately he takes a fairly strong stance that DNA barcoding is the way of the future and that everyone else is stupid for not realizing it, almost reaching a crazy old man status. Not to mention his 30 minute talk ended up being 75 minutes, so there were a lot of hungry, cranky dipterists by the end of it! The dinner itself was pretty good, but the live Caribbean band had a very limited playlist, so we heard the same 3 or 4 songs over and over again. An open bar did create some rather funny moments however when a large group of researchers decided to get up and dance! Lets just say that perhaps some should stick to reserach… The only other unfortunate thing was the party ended at 11, only about an hour after the guest speaker finished, making for not a lot of time to socialize and even less time to take advantage of the bar! Only 2 more days of the congress left, and tomorrow should be a good one with a symposium on developing new technologies to help in the study of flies.

The X-ray video of mating flies was expanded upon by another researcher this afternoon. What a fantastic methodology and some fantastic footage of what goes on during copulation! Too bad they needed a large nuclear facility to carry it out…

I think that the entire Calyptrate symposium was recorded today, and there were some really good talks featured, so make sure to check out the videos of the congress today!

I think there is more that happened today, but I’m just too tired to remember right now, I’ll post an update tomorrow morning if I think of anything else.

MTC…