Tim Irvin Archive: Natural History

On salmon and screen savers

Wednesday, June 16th, 2010

Sometimes, a picture pops up on my screen saver that I had forgotten about.  Today, this one showed up:

Chum Salmon

Bruised and battered from making its way to its birthplace-cum-spawning-grounds, this Chum Salmon looks kinda gnarly. But when the picture appeared on my screen it evoked vivid memories for me. It drew me back to the magic and excitement of traipsing around the rainforest in rubber boots; of standing alone in a river, composing photographs of salmon, while keeping watch for grizzly bears.

It reminded me of mist clinging to the branches of old, old cedars and Sitka spruce; the sound of water and the gurgling call of Bald Eagles; the smell of rotting salmon; the feel of damp rainforest air on my face; of trees draped with threads of lichen and the cries of gulls feeding on spawned-out fish.

I recall the excitement that something amazing was happening right there – that very second- and I was in the very thick of it, with two soakers as proof. The tracks of wolves and bears along the shore kept me vigilant and humble.

The pulse of a place like this is palpable. It scares the hell out of some people. Standing silently in a rainforest river, letting the place wash over you, is a visceral experience. It changes me in ways I like, but cannot articulate. It scares and soothes me.

Today, when this photo randomly showed up on my screen, those sensations flooded back. Once again I was awash in the heady moist breath of the rainforest. My very consciousness shifted somehow. I felt the magic of just being alive.

Green Green Green

Thursday, May 13th, 2010

Soon, I have to leave the house in Gatineau Park where I have been living for the past few months. It has been so lovely to be surrounded by forests and to have network of trails right out the back door.  I’ve been gobsmacked lately by the remarkable transformation  and renewal of spring that has happened in my back yard.  The view from my hammock, where I have been doing some reading, has changed drastically.

This was all the more poignant because I went away for a week just as things were beginning to sprout and when I came back everything had changed. See for yourself in the photos below.

Before:

My backyard

After:

Orchids in my backyard

Monday, May 10th, 2010

The  forest in my back yard is filled with wildflowers these days, despite the freakish bit of snow we had yesterday.  I discovered a handful of Yellow Lady’s slipper orchids growing about 30 meters from my backdoor, so I went out yesterday morning and took a few pictures.

Yellow Lady's Slipper

For the record – spring is early.

Saturday, April 17th, 2010

I decided to use this blog, in part, to keep a record of my natural history observations and ideas. This intention has made me more attentive to my natural surroundings and piqued my  already vibrant curiosity. This is especially timely now because I am house-sitting in Gatineau Park where I am surrounded by hardwood forests.

Nonetheless, I have done a poor job recording my observations. As spring bursts forth, things are changing so quickly that it is hard to keep track of it all. Until recently, I was still x-country skiing out my back door three or four times a week and now, suddenly, spring flowers are coming up.

On that note, and for the record, I was out hiking last weekend (April 10th) and was amazed to see the flowers of Blood Root, Trout Lilies, Red Trilliums and Dutchman’s Breeches in full bloom on the south facing forested slopes of the Eardley escarpment. The whiteTrilliums and other species were not far behind.

I cannot say exactly, but my guess is that this is at least three or four weeks early for these species. Also of note, I heard spring peepers singing during the first week of April and heard about a Yellow-rumped warbler that was spotted at Mud Lake in Ottawa sometime during the week of  April 5th.  In my own backyard I saw a Hermit thrush April 13th. This is unusually early for all of these events.

Recently, I heard a meteoroligist on CBC radio explaining that all across Canada it had been the warmest winter in more than 60 years. Yet, despite the warm winter, sea ice cover increased over recent years in one part of the arctic.

These facts quickly became fodder for more climate change debate. For example, the Globe and Mail published this article explaining that climate change skeptics are pointing to this year’s arctic ice cover as evidence that climate change is a hoax.

Is this true?

No.

I am not a climate scientist, but I know enough not to confuse weather with climate.  Climate is a reflection of certain meteorological statistics measured over long periods of time, whereas weather is largely what is happening in our atmosphere now.  One spring season of warm or cold weather is not evidence for or against any massive change in Earth’s climate.

In the case of arctic sea ice, what matters is its decline over the long term, not what happens in any particular year. Small seasonal changes in the ice cover are insignificant when compared to the overall long-term trends. Likewise, any rational person would not describe their child as “sickly” if they got the flu once a year, but were otherwise healthy. Calling that kid sickly is a gross misrepresentation of the overall trend of good health, just as pointing to one year of data relating to sea ice is a gross misrepresentation of the overall trend in arctic sea ice cover.

I do not want to become part of the increasingly dull and prolific climate rhetoric on the internet. Heck, I started out to write a blog about flowers and birds. But I’ve seen folks on both sides of the climate debate using short term data, like weather or bird sightings, as evidence to support their points of view on climate change.  That is frustrating. Absurd even.

Darwin, Phoebe and me

Tuesday, March 30th, 2010

I saw an Eastern Phoebe yesterday.

Phoebes are small and drab birds, they don’t have a pretty song, they do not do anything particularly endearing, other than bob their tails when perched on branches. I know, I know -  big deal.

Phoebes only attract attention from two groups of people: nerdy bird watchers with binoculars swinging from their necks, and rural homeowners who find piles of Phoebe faeces on the deck chairs under in the rafters of their porches.

But before I saw the Phoebe, I learned that 2010 is the International Year of Biological Diversity -“a celebration of life on earth and of the value of biodiversity for our lives.” This celebration follows neatly on the heels of the 150th anniversary of the publishing of The Origin of Species by Charles Darwin.

Darwin was nothing if not a keen observer of the life he saw around him. Among other things, he studied beetles and barnacles and wrote a book about earth worms and vegetable moulds. Not exactly thrilling subject matter at first glance. That said, barnacles do have the longest penises of any animal in proportion to their body size, though I cannot say if Darwin was aware of this or not.

Simply put, Darwin did not discriminate between sexy, toothy megafauna and eensy bugs. Yet his keen observations of small critters led to his revolutionary insights that fundamentally changed our ideas about one of the grandest of mysteries of the Universe. That is, the origins of the diversity of life on Earth.

Life on Earth! What could be a more compelling mystery in an entire Universe of uninhabitable space?

Now, back to the Phoebe.

I found her when I flushed it from last year’s nesting site in the rafters above my car port.

There are a couple things to mention here, lest we overlook how flabbergasting they are. Firstly, this is most certainly the very same bird that nested in this exact location last year. Secondly, not long ago, this little bird was in Florida or Mexico and arrived in this precise place after flying 100′s of kilometers without any navigational gadgetry.  No map. No compass. No satellite guided GPS.

Some humans I know cannot even follow the linear pathways of our heavily signed highways and roads without getting lost. Luckily most of them own cell phones to call somebody for help if they go astray.

Yes, migratory birds are common and we all know they migrate huge distances, but I think we seldom consider how remarkable that truly is. For example, some Bar-tailed Godwits have been know to migrate 11 000 km non-stop, relying on large fat reserves (55% of their pre-migration body weight) to see them through.

Our little Phoebe travelled a fraction of that distance, but how many humans can say they travelled from Florida to Quebec completely on their own steam?  There are a few to be sure,  but these are largely freakish exceptions – and it would have taken them a heck of a lot longer than little Phoebe. Likely weeks longer. By comparison, billions of birds migrate to northern Canada from southern climes – and back – every year.

So while this drab little Phoebe re-builds its nest for the next brood, I will strive to watch the finer details of its existence through the eyes of Darwin –  with an attentive sense of awe and wonder.  What better way to honour the International Year of Biodiversity.

Making maple syrup

Sunday, March 14th, 2010

I just moved back to my home province of Ontario after living on the west coast of BC for seven years.  I am house sitting for my friend’s parents in Gatineau Park and I am surrounded by a sugar maple forest.  I am also something of a maple syrup connoisseur, so I figured I would tap a few trees in the neighborhood and see what happens.

What happened is that I got a pile of sap and I set about boiling it down.  It has taken several experiments with my camping stoves to figure out that they don’t have enough oomph to boil a large amount of sap so I have been making small – really small – batches.  But with considerable effort I have managed to make about 750ml of the marvelous stuff so far.

The ratio of sap to syrup is about 40:1. Making syrup isn’t difficult – just follow the directions here - but it is rather time consuming.  The directions I was using said that if you don’t have a proper filter to use some wool to clarify the boiled sap. I figure that this is a throw back to the old days. I imagined some old timer toiling away to tap, collect and boil his sap then filtering it through his well worn sweaty toque to purify it. That didn’t sound very savoury to me. So I used a sock.

maple syrup filter

I thought this was very clever, but I guess the weave was not tight enough to remove some of the debris, so I resorted to using a couple layers of tea towels and voila! Pure, clear gorgeous tasty maple syrup.

If you live in Ottawa and you know me and I like you, then expect an invitation to a pancake feast to welcome spring.

If you live in Ottawa and you know me and you do not get an invitation to the feast then, well…you know.