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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsYellowstone wolf impact not as strong as thought.
https://www.sciencedaily.com/releases/2026/06/260613215510.htmWolf populations in Yellowstone National Park have myriad impacts on ecosystems, but exactly how those impacts play out in the complex system is still under consideration. New research from Utah State University ecologist Dan MacNulty and colleagues shows earlier reports of massive increases in willow biomass is an artifact of circular modeling and other methodological errors. Credit: Nomadic Lass
One of the most widely cited stories about Yellowstone's wolves is facing fresh scrutiny.
A new peer reviewed analysis published in Global Ecology and Conservation argues that a high profile 2025 study significantly overstated the ecological impact of wolf recovery in Yellowstone National Park. Researchers from Utah State University and Colorado State University say the earlier work relied on flawed methods that led to exaggerated conclusions about how wolves affected the park's ecosystem.
marble falls
(73,204 posts)cachukis
(4,151 posts)2naSalit
(104,428 posts)Finding that out.
I have have business with McNulty and some of the staff in the park. I provided some of the funding for some of his research for his doctorate. I was glad he went to work in the park after he graduated.
I'll have to do some reading on this. I used to cite many of the studies in my O&E presentations so finding out about updated info is important to me.
cachukis
(4,151 posts)but science is rarely finished.
The butterfly effect is often lost in the minutiae.
Botany
(78,108 posts)I attended a conference about the benefits of the reintroduction of wolves into Yellowstone
by some of the people who did that work or studied the results and the benefits of having
wolves are facts.
Example:
Elk prior to the return of the wolves used to eat the clones of Aspen trees along the
waterways and were like big cows but once the wolves came back the elk stopped
hanging out and eating the young Aspens and so they grew up and shaded the creeks
and river which cooled the water temperatures and dropped insects into the waters
which helped the native Cutthroat Trout which the bears liked to eat and there were
fewer bear vs human problems. Also the meadows grew up which helped in biodiversity
and in turn helped all kinds of critters such as pollinators, small mammals, foxes,
and birds of prey too.
cachukis
(4,151 posts)being refined.
yellowcanine
(36,867 posts)Numerous studies have shown this. Heavy browsing destroys bird habitat and also allows invasive plant species to move in. This in turn reduces native insect populations which the songbirds depend on for food.
yardwork
(69,845 posts)Scientific consensus is that the Earth is warming rapidly and it's due to human behavior. But it's the nature of scientists to squabble over details and debate and argue. That's the strength of science. There isn't a round solid perfect answer. There are nuances and details and surprises. Those refinements and ongoing discoveries strengthen the conclusions.
But it's very easy to exploit that strength into a propaganda built around seeming gotcha moments. "It was all a lie" is bullshit. "It's a little more complicated than we thought" is usually true.
I know I'm preaching to the choir as you know all this - just wanted to vent.
Of course wolves are essential to the Yellowstone ecosystem. Of course it's not as simple as a fairy tale. We already knew that.
2naSalit
(104,428 posts)Are many that I made in my presentations as a lobbyist and as a park ranger in YNP.
I knew most of the people who actually carried out the reintroduction to both YNP and the Frank Church Wilderness River of No Return. In fact, I know the last living person responsible for the Frank Church WRNR. I also was in contact with many of those who conducted much of the past research, for many years and cited their research in my work.
I know that things change but I wonder how they assess the human factor in these more recent studies. I also wonder Whether parameters have been placed in or on these studies by the anti-science crowd who have taken over our government. Methodology components of these studies will be interesting to read about.
And on top of all that, I lived right outside and around the park for 35 years and frequently observed these thing first hand.
Will be looking to find out about this.
Botany
(78,108 posts)about 30 years ago. What worries me is that they might be trying to change the
narrative in order to make it easier to kill wolves. After being gone from Ohio for
about 100 years the bobcat is coming back and our mouth breathers wanted to know
when they can hunt them. Btw I am a hunter too. Deer.
Btw I had a friend who was an expert and had 3 wolf/husky hybrids
80% to 20% and
if the big male liked you he would just lean on you but he did not like to be patted.
I have heard wolves in Ontario and seen 2 in the wild. Beautiful creatures!
WhiskeyGrinder
(27,335 posts)2naSalit
(104,428 posts)Seems to undermine over forty years of research. Some of us, who have been engaged in and conducted a lot of it are interested in a finding that seems to be an outlier that appears to contradict what many researchers have found.
dugog55
(386 posts)Reintroducing wolves to Yellowstone, where they used to be plentiful is certainly the correct thing to do. But to expect major changes in a year, decade, or several decades is short sighted. They are not modifying a machine, nature takes time to do its job.