Colorado Parks and Wildlife holds 1st informational session on wolf reintroduction |

Colorado Parks and Wildlife holds 1st informational session on wolf reintroduction

Dylan Anderson
Steamboat Pilot & Today
Wolves are set to be reintroduced in Colorado by 2023.
Photo from Getty Images


STEAMBOAT SPRINGS — Colorado Parks and Wildlife last week held the first of three informational sessions about wolf reintroduction on the Western Slope, which will happen by the end of 2023.

Diane Boyd, a retired biologist who has been called the “Jane Goodall of wolves,” has been collaring and studying the animals her entire career, mostly in Montana. When it comes to managing wolves, Boyd says people should expect the unexpected.

“You have to be flexible; if you think wolves are going to stay on the western side of the state, they are going to show up 300 miles out on the prairies on the eastern side,” Boyd said. “It is going to happen.”

This has happened in Montana near the North Dakota border, Boyd said, but the wolves that do migrate where there isn’t suitable habitat do not survive. In forested areas, particularly large private ranches as well as federal and state forestland, they do much better.

Collaboration will be paramount while reintroducing wolves, she said, because there are so many different groups involved, and conflict will hinder successful reintroduction.

“It involves people sitting at the table who normally don’t talk to each other — they are normally at fisticuffs over issues. Drop that,” Boyd said. “You have to get together and talk, because you are going to have to work together to create a wolf program that is going to work.”

A particularly likely place for conflict to arise is when wolves kill livestock.

“Livestock depredation is going to happen — it is just going to happen — so before wolves come in, you have got to have control guidelines and compensation programs set up,” Boyd said.

In Montana, the livestock loss board pays between $65,000 and $85,000 a year in compensation for animals killed by wolves. They also have a state law requiring biologists to collar any wolves that will come in contact with livestock, though this is impossible to do completely, Boyd said.

To survive, wolves need three things, Boyd said: wild ungulates or hoofed mammals like elk, a large undeveloped landscape to den and freedom from persecution. This could mean wilderness, parks and public lands in Colorado, Boyd said, but it could also mean ranches or even in larger subdivisions. She said she has seen a pack of wolves live in a gated community where there were no predators and an abundance of deer.

The effect wolf reintroduction will have on elk populations in Colorado is another concern, particularly of hunters. Jon Horne, a senior research biologist with Idaho Fish and Game, was the lead on an elk survival study looking at how this has played out in Idaho.

Since wolves were reintroduced there, the annual elk harvest has remained relatively stable, Horne said. Still, different places have seen different outcomes. When looking at the various elk management zones in the state before and after wolves were introduced, there are fewer zones with the desired elk population after reintroduction. There are also more zones where elk are either over- or underpopulated.

Horne and others in Idaho found that the size of a calf elk at birth was the greatest determinant on whether it would live. Still, the size of wolf packs in the area and snow depth in its first winter were significant survival factors, as well.

Wolves and mountain lions were the main predators of elk, but wolves seemed to prefer to take smaller calves and older cows, where mountain lions killed all sizes of elk relatively equally. Other studies show mountain lions have more effect on elk populations than wolves.

A significant part of the elk study required Horne to estimate the size of wolf packs in Idaho. Since they started the study in 2005, pack sizes have fluctuated a bit but have remained relatively stable at about six wolves. This has been true despite wolves now being hunted in the state.

The next informational session will focus more specifically on reintroduction and looking at how it has been done in the past in other states. It is scheduled for May 20. A third session will focus specifically on conflict between wolves and livestock. It does not have a scheduled date but is anticipated to be in June.

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