Paddle-tailed Darner

 

Darner dragonflies fly rapidly and tirelessly over local lakes, ponds and woodlands as they hunt for other insects to eat. Seemingly always in the air, they are most likely to be photographed in flight. Yet, they do land long enough to mate. These pictures are of one of the darner species: the Paddle-tailed Darner.

Two pictures show a Paddle-tailed Darner in flight: head on and in profile.

These Paddle-tailed Darners are mating in the grass.

A moment after this picture was taken the two of them flew off to lay the eggs with the male still holding the female by the back of the head. He stayed with her to protect his investment from other males.

 

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Kokanee keep coming

 

The Kootenay Lake naturalist’s year is marked by many events: irruptive finches in the winter, migrating swans in the spring, the return of humming birds and ospreys, the freshet, pollinating insects, the arrival of black bears in the valleys in the late summer, the first steam fog of the fall, the arrival of snow.

One event stands out: in late summer, the Kokanee salmon spawn. Locals and tourists flock to marvel at waters that flow red with fish.

A bit over a week ago, I posted a single picture of the early stages of the Kokanee salmon spawning run. Today, I post a few more.

A happy osprey holds a large partially eaten Kokanee.

A male Kokanee bares its teeth as it jostles for postion among the many.

Underwater pictures show a perspective rarely seen by people.

Sometimes the play of light and colour produces an almost incomprehensible jumble.

At other times, the world seems awash in red.

Here’s looking at you.

The two above water pictures were taken by Cynthia Fraser and are used with permission.

 

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Stump stabber

 

I clearly don’t spend enough time in the woods. Otherwise, my first encounter with a stump stabber would not have taken place inside my home. This western giant ichneumon wasp (Megarhyssa nortoni) was looking for some grubs deep inside decaying wood so it could parasitize them. Unfortunately for it, my home offered slim pickings.

The female stump stabber has an amazingly long ovipositor which is used to insert eggs into wood-boring grubs deep inside a tree. The hatched egg will then devour the living grub, leaving the vital organs for dessert.

The stump stabber searches for grubs deep in the wood by drumming its antenna on the surface. This windowsill proved a disappointment—no grubs here.

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Etty versus Doug

 

Etty would not have approved of Doug or his lawn.

Etty was the daughter of Charles Darwin and she helped her father with his editing, alas, often with an eye to bowdlerizing biology to conform with her Victorian sensibilities.

Etty’s oddest campaign was her attempt to cleanse the world of, what she viewed as, an obscene fungus. As Etty’s niece reports:

Armed with a basket and a pointed stick, and wearing special hunting cloak and gloves, she would sniff her way round the wood, pausing here and there, her nostrils twitching . . . then at last, with a deadly pounce, she would fall upon her victim, and poke his putrid carcass into her basket. At the end of the day’s sport, the catch was brought back and burnt in the deepest secrecy on the drawing-room fire, with the door locked; because of the morals of the maids.

Douglas Sly is a lakeside resident who has harboured in his lawn the object of Etty’s moral outrage: a common stinkhorn. This fungus’ scientific name tells all: Phallus impudicus—the shameless phallus. Here is Doug’s picture of it.

Douglas Sly’s picture is used with permission.

Posted in commentary, wildflowers | 6 Comments

Pond bubbles

 

Photosynthesis takes place in plants and cyanobacteria even when they are underwater. Photosynthesis involves the exchange of gases with the surroundings. Occasionally such a gas release underwater becomes obvious.

On a hike into Kokanee Glacier Park, my daughter, Cynthia, took this sequence of increasingly close pictures at a alpine pond. The view presented a mystery to us all until an aquatic biologist wrote and said: “Yep – very pretty pic of gas bubbles from submerged photosynthesis, hard to tell if that’s a crust of cyanobacteria or early stage of moss development that’s making the bubbles.”

Cynthia Fraser’s pictures are used with permission.

 

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Opreys two

 

Usually, the only time I see two adult ospreys together is at a nest, either building or tending. It was unusual to see these two sitting together on a snag away from the nest. Maybe the chicks have just left the nest and the parents now don’t know what to do with themselves.

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Marmot & legs

 

After posting Cynthia’s pictures yesterday of the hoary marmot taking an interest in hikers in Kokanee Glacier Park (marmot & shoes), there was a discussion of marmots licking hiker’s legs. This morning, Bethany Arndt (she of Bethany’s marmot) sent me her picture taken this July along the same trail. Bethany noted that the marmot preferred the legs of some hikers over those of others.

Bethany Arndt’s picture used with permission.

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Marmot & shoes

 

We have two local species of marmot: yellow-bellied and hoary. The yellow-bellied marmot lives in the valleys and has been featured two times this year: mommy marmot, March marmot. The hoary marmot lives in alpine country and has appeared only once and that was last year: Bethany’s marmot.

While on a recent hike between Gibson Lake and Kaslo Lake, my daughter, Cynthia, was surprised by how boldly a marmot approached and examined her sneakers.

A hoary marmot stands in a field of western anenome.

The marmots take an interest in hikers. This one licked and chewed Cynthia’s tattered trail runners.

The marmot’s black, brown and grey blends well with its home terrain. 

This is Cynthia’s panorama of Kokanee Lake from the trail alongside it. Marmots prefer the alpine meadows to the rocky slopes of this lake.

Cynthia Fraser’s pictures are used with permission.

Posted in mammals, scenes | 8 Comments

Buck in velvet

 

Within meters of where I saw the white-tailed deer with antler buds early in May, I saw possibly-the-same buck this morning. It is now summer, so its antlers have grown but they are still covered with the hairy skin known as velvet. The velvet will be shed early in the fall.

Posing for a portrait

 

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Kokanee spawning

 

They are at it again: the Kokanee are spawning. Depending on the creek, from mid-August until late September the water becomes either spotted or awash with red as these land-locked sockeye salmon move upstream. I hope to get more views as the season progresses.

This is a view looking downstream towards the approaching Kokanee salmon. Their red bodies are reflected on the underside of the suface of the water.

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