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David Bakker

Orienteering Mapper, UBCO Biochem

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Guide to Buying Car Flowchart

Posted January 9, 2014 David

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⟵Guide to Buying Car Flowchart

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The Devolution of the Canadian Survey Post
Okanagan Adventure Running Tournament
Sprint Camp 2018 – Part 1
Refocusing
Helsinki Part 2

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Spot the spider. Stinky Lake, #Whitehorse, #Yukon

Spot the spider.

Stinky Lake, #Whitehorse, #Yukon

Walk in the woods for long enough, and you'll see

Walk in the woods for long enough, and you'll see something amazing. #explorebc

Instagram post 18015592867103353

Instagram post 18015592867103353

Getting up above the clouds. #valleycloudsucks

Getting up above the clouds. #valleycloudsucks

Epic New Year's Eve snowshoe up Mount Ida (1000m c

Epic New Year's Eve snowshoe up Mount Ida (1000m climb, 12km) with an even better group! #snowshoeing #explorebc #shuswap

Get outside. Go somewhere new. It's worth it. #ex

Get outside. Go somewhere new. It's worth it.
#explorebc #orienteering

2.5 hour run up McDougal Rim to 1400m with @alexan

2.5 hour run up McDougal Rim to 1400m with @alexandre.corbett Everything frozen solid up there. #winteriscoming

Instagram post 17905442491243212

Instagram post 17905442491243212

A frog chilling in the woods outside Revelstoke. I

A frog chilling in the woods outside Revelstoke. I mean, it's well above 30 degrees out, he deserves a bit if a break.

These fascinating patterns in the inside of a piec

These fascinating patterns in the inside of a piece of Douglas fir bark stew caused by a parasitic beetle that generally results in large amounts of deadfall. Here is the description of the insect by the BC government.
Douglas-Fir Beetle

The Douglas-fir beetle (Dendroctonus pseudotsugae) is the principal killer of mature Douglas-fir in B.C. It usually attacks weakened or dying trees, but occasionally its populations increase to the extent that it infests and kills large numbers of healthy trees. Aerial overview surveys recorded 47,628 hectares of damage in 2015.

This beetle is most common in B.C.'s Interior. Though it can be found in coastal forests, it rarely causes the large-scale damage seen inland.

It attacks its host in early summer. The beetle usually attacks weakened trees (e.g., drought or wildfire damage) or trees blown down by windstorms. When it attacks healthy trees, it targets the largest and oldest first — those most valued as wildlife habitat, particularly for mule deer winter range.

Description
Adult Douglas-fir beetles are dark brown to black with reddish wing covers, and are tiny (about 4.4 to 7 millimetres long). The life cycle is usually one year, and two broods may be produced.

Distribution

Native to North America, this insect is found throughout the range of the Douglas-fir, its principal host.

Management

Strategy depends on infestation size, stand susceptibility and other factors. Detection involves walkthroughs, probes and star probes (a type of ground probe). Treatment can involve sanitation harvesting, trap trees and other techniques.

Tree Species Attacked
Large diameter, mature Douglas-fir trees are attacked; also, occasionally, downed western larch. Trees are killed when the flow of food and water between roots and needles is blocked by feeding larvae and by dead sapwood cells killed by the blue-stain fungi carried by the Douglas-fir beetle adults.
Damage Symptoms

Recently attacked trees are difficult to identify except for reddish brown boring dust that may accumulate on the trunk and in bark crevices. Foliage of killed trees turns from green to pale yellow-green to red by the spring of the year following the attack

Sun setting over the Columbia River in Revelstoke,

Sun setting over the Columbia River in Revelstoke, BC. Roughly 2 hours in 44 seconds.

Storm clouds over Kamloops BC.

Storm clouds over Kamloops BC.

One of the last few wooden single lane bridges. Th

One of the last few wooden single lane bridges. This one is over the flooding Shuswap River near Mable Lake.

"There are moments when all anxiety and stated toi

"There are moments when all anxiety and stated toil are recalled in the infinite leisure and repose of nature." - Henry David Thoreau . . . #studybreak #examseason #getoutside

Spring is here! A bit of the terrain of the upcomi

Spring is here! A bit of the terrain of the upcoming #OkanaganAdventureRunningTournament Link in bio. #Kelowna #Okanagan #Orienteering

When you should be studying for your organic chemi

When you should be studying for your organic chemistry midterm, but decide to get a new perspective instead. Put the gopro in an interesting spot on my bike, and went out for a ride.

Beautiful ski up at Kelowna Nordic today! #explore

Beautiful ski up at Kelowna Nordic today! #explorebc #xcskiing

Awesome set of orienteering races down at the Vanc

Awesome set of orienteering races down at the Vancouver Sprint Camp. Huge thanks to the organizers! .
.
📷Robert Svoboda

Instagram post 17848632556228362

Instagram post 17848632556228362

A stressed student productions presents "Running F

A stressed student productions presents "Running From My Problems" (Best with sound). Beautiful day of running in Kelowna today, now I need to start dealing with these problems. #ubco #running

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