Well one of the first questions I would ask about that study is whether
the supposed risk of wolf attack actually does change the behaviour and
distribution of Elk. If it doesn't then their results are meaningless.
Andrew Hobbs
On 6/04/2014 8:20 AM, Peter Shute wrote:
From that article:
"When Kauffman and his colleagues studied aspen in areas where risk of attack by wolves was
high or low, they obtained results different from Ripple’s. Rather than look at the five
tallest aspen in each stand, as Ripple had done, they tallied the average tree height and used
locations of elk kills to map the risk of wolf attacks. By these measures, they found no
differences between trees in high- and low-risk areas."
So some people are getting excited about tree regrowth that might be attributed
to the presence of wolves, but others are arguing about whether there's been
any regrowth at all.
Anyone else confused?
Peter Shut
Sent from my iPhone
On 4 Apr 2014, at 3:51 pm, "Ross Macfarlane"
<<>> wrote:
It's a fascinating narrative, but like most things maybe not as simple as it
sounds -
http://www.nature.com/news/rethinking-predators-legend-of-the-wolf-1.14841
-----Original Message-----
From: Clive Nealon
Sent: Friday, April 04, 2014 11:19 AM
To: Birding-Aus
Subject: [Birding-Aus] A vote for conservation...
A really interesting short clip on the benefits of wolves in Yellowstone N
P.
Perhaps a lesson that would translate to other areas...
http://devour.com/video/how-wolves-change-rivers/
Clive.
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Andrew Hobbs
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