How wolves change rivers

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FisherGirl

Steel Bunny
Joined
Aug 22, 2013
Messages
893
Location
Durham
Really cool video on the stark impact reintroduced wolves had on yellowstone national park. I love this kinda stuff!

http://vimeo.com/86466357
 
Amazing how the abiotic world is shaped by the biotic. Trophic cascades are so cool
 
It's amazing how one creature has such an incredible effect. I wonder what we've missed out on due to the many now extinct animals.
 
troutddicted said:
A little more than a little :ph34r:
troutddicted literally created the program at U of T :cool:



Thanks for sharing Fishergirl! I remember working on a highway expansion project out west in Banff/Lake Louise a few years back. There was also a shortage of wolves and an excess of deer at the time. The expansion project was an attempt to be as environmentally friendly as possible, and one of the examples was to create huge culverts and animal crossings above and below the highway to mitigate roadkill. Almost immediately afterwards, teh park rangers noticed a rise in wolves and a sharp drop in deer. It was a mystery until they decided to monitor the movement of wolves. Turns out, the wolves gathered around one end of the culvert/crossing and waited for their prey to channel themselves right to them! Smart buggers lol.
 
flandogg said:
Turns out, the wolves gathered around one end of the culvert/crossing and waited for their prey to channel themselves right to them! Smart buggers lol.
Food funnels :lol:
 
flandogg said:
troutddicted literally created the program at U of T :cool:



Thanks for sharing Fishergirl! I remember working on a highway expansion project out west in Banff/Lake Louise a few years back. There was also a shortage of wolves and an excess of deer at the time. The expansion project was an attempt to be as environmentally friendly as possible, and one of the examples was to create huge culverts and animal crossings above and below the highway to mitigate roadkill. Almost immediately afterwards, teh park rangers noticed a rise in wolves and a sharp drop in deer. It was a mystery until they decided to monitor the movement of wolves. Turns out, the wolves gathered around one end of the culvert/crossing and waited for their prey to channel themselves right to them! Smart buggers lol.
no way!!! I've always been into biology
 
Awesome, seen a similar documentary about a re-introduced pack in Yellowstone, the biologists studied the elk carcasses of wolf kills and found many were diseased, somehow the wolves sense the sick or injured in the pack and cull them. The circle of life is larger than we will ever understand and we foolishly believe we can "manage" wildlife... troutddicted -my eldest offspring is in her first year of biology at Guelph, insert proud papa smiley here :razz:
 
coldfeet said:
Awesome, seen a similar documentary about a re-introduced pack in Yellowstone, the biologists studied the elk carcasses of wolf kills and found many were diseased, somehow the wolves sense the sick or injured in the pack and cull them. The circle of life is larger than we will ever understand and we foolishly believe we can "manage" wildlife... troutddicted -my eldest offspring is in her first year of biology at Guelph, insert proud papa smiley here :razz:
This was in Yellowstone :)
 
coldfeet said:
somehow the wolves sense the sick or injured in the pack and cull them.
I'm no biologist/anthropologist/animologist, but I reckon the weakest prey are the easiest for them to hunt down.

As is the case with cougars...

(somebody had to throw a cougar joke into this thread at some point)

Animals of prey love to hunt offspring because they are an easy target, hence why the parents will go berserk if you go near their young.
 

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