insects

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country fly, city fly

Atop a mountain this past summer, backcountry camping for three nights an eight hour hike from civilization, I spent an hour each day keeping up my writing by scribbling narratives of our daily advenutres into my smartphone. This is one of my entries.

day two

Anyone in search of an example of modern evolutionary pressure look no further than the common fly. 

Back in the city, like up high in the mountains, flies are ubiquitous.

But unlike the mountains, the cities are filled streets, buildings, parks and coffee shops full of people.

City flies need to be smart and fast.  Any fly that is not keenly aware of its surroundings and has not the instinctual inclination to leap into the air and off into the safety of flight is doomed to be swatted by any of a million people. Flies are not be dullards, and any fly born without the inbuilt drive to flee is unlikely to survive long enough to pass on its disadvantageous genome to a future generation.

We will have spent nearly three days up high in the backcountry camping in the mountains where a million variety of insects thrive. In fact even high up above the tree line where even in mid-August patches of snow remain in the share of large rocks, there are so many flies that an adventure-seeker is bound to spend as much time swatting away bugs as admiring the views. And it struck me as curious—though probably less so for the fly which I smacked dead upon my bare forearm—that there must be significantly less pressure, evolutionarily speaking of course, for mountaintop flies to carry a genome that knows better than to get smacked by a human—which a fly may rarely, if ever, see in its short life on the side of a mountain—than for one of its city cousins who encounter humans as a matter of course and have no such luxury as to leisurely investigate a bare forearm on a Friday afternoon.

Nearly every fly I encountered up on that mountain was indifferent to the risk of sudden death carried by my swiftly moving hand. Nearly every fly sat patiently and still as I reached over and snuffed it away.

Smacking a city fly requires speed and agility on the part of a human, but one feels superhuman atop a mountain as the dull flies understand too little what awaits the looming shape and shadow of a hand moving towards them.

Evolution at work.

Posted on episode 201

Book: Handbook of the Canadian Rockies

I don’t buy many paper books these days, so I caught even myself off guard when I dropped fifty bucks on this doorstop-grade loaf while on vacation over the summer, and in a souvenir store no less.

We had spent the day in the wilderness and flipping through the pages it caught the dangling threads of my vacationing soul and pried open my wallet.

I had woken that same morning and gone for an eight kilometer trail run up the side of a small mountain to an overlook of the town where we were staying. I’d met a friend (who had moved out to there a few years back for career reasons) and she’d led me on a 7am (and two degrees Celsius in July!) run along a quiet road and up towards the trailhead of a short day hike path that was still quiet of all human life save us. We ascended a few hundred meters of elevation into the early morning crisp air and stood on a smooth boulder with a vista view spanning what seemed fifty kilometers in multiple directions, and I couldn’t help but feel a pang of envy that she could go up there any time she wanted and I was due to drive back to the city the next day.

Flipping through the display copy of Handbook of the Canadian Rockies by Ben Gadd that evening evoked some overlapping emotions I’d been feeling from that whole week-long excursion into the National Parks, but in particular tugged at my heart in the same sort of way that standing atop a small mountain did at the dawn of that day.

A few minutes later I was standing at a cash register, tapping my debit card on the kiosk and watching my own copy being handed back to me with a crisp little receipt bookmark protruding from the edge.

When I was a lot younger I was fascinated by the kinds of books that were stuffed with bounties of information, the kind of books like encyclopedias or almanacs that could surprise you with any visit. Those kinds of books you pry open to a random page and are greeted with a sub-sub-heading of some curious topic and you just read.

This is that kind of book.

I opened the book three times at random as I started to write this paragraph and on those three visits I was greeted with a page filled with information about local lichen species, then a page detailing the dietary habits of the mule deer, and finally a two-page spread timeline of the major geological events of the area dating back a few billions of years.

If that kind of thing isn’t your style, you’re probably also not the kind of person to feel pangs of wonder at the beauty of a particular rock formation or pause in the middle of a long hike to contemplate a small copse carpeted by lush green moss.

A month later I’ve consistently kept this book on my nightstand and made something of a habit of opening the book at random (if not every day) a few times per week and reading a few pages here or there about the history, flora, fauna, and geology of my nearby mountain escape…

…and then pining to be back there.

If that isn’t an endorsement for a book, I don’t know what is.

Posted on episode 200

Hymenoptera

I sometimes tell people that while in university I unofficially minored in bugs.

As a biology student I had many options for my options, but my interest veered sidelong into a course of courses in the entomology department. I exited with a bachelors degree in genetics, but the extra educational suitcase I had brought along was stuffed full of souvenirs from my study of insects.

Packed in that suitcase, I’ve always adored the word Hymenoptera.

hai - muh - NAAP - ter - uh

Or, the order of insects that contains wasps, bees, hornets, ants and other similar six legged critters.

The summer of 2021 was apparently a good year around here for a particular kind of yellowjacket wasp.

Popular opinion was that there was more than just an uptick in the aggressive insects population over the last few months. Call it a surge. A bumper year for hymenopterans. Nearly everyone had a story of being stung, dealing with a nest, or even the consequence of the crop of pandemic puppies encountering angry bugs for the first time either in their campsites or own backyards.

A nearby neighbour must have had a nest in their yard and for a couple weeks solid the little drones took over a corner of my backyard and harassed the dog (who never did seem to figure out that they were never going to play nice with her.)

I reluctantly put a trap on a tree and caught a few hundred, but to be honest it neither made much of a dent in the population nor made me feel good about myself.

There is a balance to everything, and I noted this most acutely when (after dealing with weeks of wasps and yellowjackets in and near the city) we vacationed in the mountains and hiked for hours without seeing so much as a hint of those black and yellow stripes.

Our attempts to control and manicure the local suburban ecosystem with the species of plants and critters we think we like, the ones that are pretty or simple or tasty, has a side effect of throwing into chaos the nature tug-of-war we can’t quite see, and which manifests as weeds and coyotes and mosquitos and wasps terrorizing those same spaces as we eliminate natural predators or encourage invaders to take refuge in the vacuum.

The mountain ecosystem, by contrast, has seemingly still not tottered onto its side and the result is that we were able to hike without much fear of being stung.

Eaten by a bear, maybe, but stung… less so.

Yet now, twenty years after graduating from university I don’t do much with or recall many facts from my biology education but I have this vague sense that I can see the loose threads of the ecosystem imbalance, that I can talk and write about it with some confidence, and that one of the hundred dollar words I can always lean on is Hymenoptera.

Posted on episode 190

Hobbling and Hurting

Sunday Runday, and it’s been a couple weeks since I sat down to write a post. It is a summer break for me, after all, and I’ve been out on the road, in the mountains, on the lake, and … as the topic of this post will soon reveal, running through the wilderness.

In fact, a few interesting things have happened in my running career since last I checked in. In particular, I may have spent some money on race registrations. In person race registrations.

The BIG one I’ll save for another post.

The little BIG one ties back to this morning’s Sunday running adventure that was had, all resulting from a spontaneous decision to sign up for a local (quasi) ultramarathon and the opportunity to do some practicing for that.

And again, in fact, I wrote in passing about my intention to do just that a few months back when I wrote about a nature sanctuary we had visited west of the city.

The River’s Edge Ultramarathon is an honest-to-goodness ultra marathon race through challenging terrain hosted on a large chunk of private land at the edge of the North Saskatchewan river. (Adult) distances range from a short 12km sampler run to a full 100km solo looping race of insanity.

Last weekend I signed up for the half marathon “koda” distance, twenty-one klicks through rolling riverside terrain (and even some wet crossing to a small island, I understand).

As the race host prepares the course and readies for the event, he invites some interested locals (ie. us) out to the start line to help clear trails, trial the trails, or just run the course. So, Sunday Runday and seven of my crew found themselves driving thirty minutes west of the city to spend three hours in the wilderness for one of the permitted practice runs on the “homestead” loop.

Across a little more than three hours, we pushed through nineteen klicks of grinding hills, mucky soft peat, cliff-side crags, cow pastures, grassy stretches, ambling over barbed wire fences, and stumbling down rope-supported descents.

On top of the regular running pain, the wasps had taken over the landscape. I didn’t count but I would confidently say there were well over two or three hundred nests along the length of the trail, and I was stung at least twice… which was about average for me and my fellow participants. Ultra-style trail running with a hot, burning, muscle-spasm of wasp-sting pain in your calf is nothing to shrug off.

In about six weeks we’ll be back out there for the real race, trudging through similar loops on a (hopefully) cool September day, and my in person race career will have seemingly resumed with a challenge I wouldn’t have expected to take on again so soon.