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A Long Winter’s Nap

Johnson Bottom on the Green River, Ouray National Wildlife Refuge, Courtesy US Fish & Wildlife Service, John Orlanda, Photographer
Johnson Bottom on the Green River, Ouray National Wildlife Refuge
Courtesy US Fish & Wildlife Service, John Orlanda, Photographer
One of the lesser-known natural, and underappreciated, areas in our state is found 32 miles south of Vernal in eastern Utah: the Ouray National Wildlife Refuge. My wife and I visited last July, hoping to see bird species we don’t find in other parts of the state. We enjoyed the birding, but what made the visit most memorable to me wasn’t birds, but fish.

Razerback Sucker Courtesy US FWS, Sam Stukel, Photographer
Razerback Sucker
Courtesy US FWS, Sam Stukel, Photographer

Humpback Chub Courtesy US FWS Humpback Chub
Courtesy US FWS

Bonytail Chub Courtesy US FWS Bonytail Chub
Courtesy US FWS

The refuge lies along the Green River, the largest tributary of the Colorado. If you drive far enough down the main refuge road, you’ll come to the Ouray National Fish Hatchery, dedicated to protecting three of the rarest fishes in North America: the bonytail, the humpback chub, and the razorback sucker.

All three of these species are confined to the Colorado River watershed, and all are on the federal Threatened and Endangered Species list. They’re desert fish, used to warm water. In fact, I learned that one reason why populations of these fish declined in the 1960s was that construction of the Flaming Gorge Dam upstream had made the Green River much cooler, as the water flowing through the dam was drawn from the coldest depths of the reservoir. That was great for trout, turning a 30-mile stretch of the Green into a world-renowned fishery. But it wasn’t so good for desert-adapted fish.

Learning this made me curious. The Ouray refuge is in the Uinta Basin. and it gets cold in the Basin in the winter. So, if cold water is bad for them, how have the bonytail, humpback chub, and razorback sucker survived there for thousands of years?

To answer that, it helps to understand the terms that anglers and fisheries biologists use. They refer to cold water species, like trout, kokanee, and whitefish, and warm water species like bass, perch, and catfish. The rare Green River species are warm water fish. But those labels aren’t about what temperatures the fish can survive, they’re about temperatures they experience when they thrive – during the warmer half of the year.

All fish are cold-blooded. More specifically, they’re ectothermic, getting their body heat from their environment, and poikilothermic, having a body temperature that fluctuates with the temperature of the waters where they live. To survive in winter, they go into a low-energy state called “torpor.” Their heart rate drops, their metabolism slows to a crawl, and their need for food is basically nonexistent. It’s like hibernation, except it happens in the deeper, slower water of a river instead of a cave or burrow.

That’s an important adaptation for the Colorado River fishes. Bonytail and humpback chub feed on insects, crustaceans, seeds and plants, occasionally small fish, all of which are much harder to find in the winter. Razorback suckers eat insects, plankton, and decaying plant matter – also less available in the winter months.

Now that we’re heading into springtime, when the weather gets warmer and the river along with it, both the fish and their prey are becoming active again.

Temperature is no longer a big threat to survival of these species. Flaming Gorge Dam has been re-engineered so that warmer water is drawn through its turbines. Also, flows through the dam are altered during spawning season to increase survival of fish larvae. The Ouray hatchery raises young fish to boost their population. The biggest threats to these species are habitat destruction and competition from non-native fishes. Those are challenges that are much harder to address. But it’s good to know there are biologists helping to recover the rare native fishes of the Green and Colorado Rivers.

I’m Mark Brunson, and I’m wild about Utah’s aquatic species and habitats.

Credits:

Images: Johnson Bottoms, Courtesy US FWS, John Orlanda, Photographer
Razerback Sucker, Courtesy US FWS, Sam Stuckel, Photographer
Bonytail Chub, Humpback Chub, Courtesy US FWS
Featured Audio: J. Chase and K.W. Baldwin as well as Friend Weller, https://upr.org/
Text: Mark Brunson, https://www.usu.edu/experts/profile/mark-brunson/
Additional Reading: Mark Brunson, https://www.usu.edu/experts/profile/mark-brunson/ & Lyle Bingham, Bridgerland Audubon Society

Additional Reading

Mark Brunson’s archive: https://wildaboututah.org/?s=brunson

Upper Colorado River Endangered Fish Recovery Program, U.S. Fish and Wildlife Service, https://www.fws.gov/office/upper-colorado-river-endangered-fish-recovery-program/species

Ouray National Wildlife Refuge, U.S. Fish and Wildlife Service, https://www.fws.gov/refuge/ouray

Ouray National Fish Hatchery, U.S. Fish and Wildlife Service, https://www.fws.gov/fish-hatchery/ouray

Fish, Dinosaur National Park, National Park Service, https://www.nps.gov/dino/learn/nature/fish.htm

Endangered Species Day: A look at how DWR, other agencies are helping razorback suckers in Utah, News, Utah Division of Wildlife Resources, May 14, 2020. https://wildlife.utah.gov/news/utah-wildlife-news/919-endangered-species-day-helping-razorback-suckers.html

Where do fish go when it freezes outside?, National Oceanic and Atmospheric Administration (NOAA), https://oceanservice.noaa.gov/facts/fish-freeze.html

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The Magic of Fire!

A bison seems unaware of the smoke plume from the American Elk Prescribed Fire behind it. Courtesy US National Park Service (NPS)
A bison seems unaware of the smoke plume from the American Elk Prescribed Fire behind it.
Courtesy US National Park Service (NPS)
The magic of fire! The magic of trillions of highly excited electrons giving us heat, light, comfort, and excitement- seen in the dancing eyes of my grandchildren. My high school chemistry students were all pyromaniacs. “Mr. Greene, are we going to burn something today?” a common refrain as they entered the classroom. A community fire becomes the center of our family and student campouts, where stories unfurl, along with hot dogs and marshmallows.

Recently attending a “Forest and Fire” panel at USU sparked my interest and ignited my curiosity on how indigenous peoples around the globe have altered our terrestrial landscapes. According to archeologists, fire melded with various homo species sometime in the smoky past between 1.7 – 2 million years ago, long before homo sapiens emerged only 300,000 years ago.

Smoke roils from 2012 wildfire in Utah. Photo by U.S. Forest Service.
Smoke roils from 2012 wildfire in Utah. Photo by USDA Forest Service.
Every natural ecosystem on land has its own fire regime, and the organisms in those ecosystems are adapted to or dependent upon those regimes. Fire creates a mosaic of different habitat types, each at a different stage of succession. Various species of plants, animals, and microbes specialize in exploiting a particular stage, and by creating these different biotic communities, fire allows a greater number of species to exist within a landscape. We humans continue to have a profound influence on these fire regimes.

Native peoples around the globe used fire to clear areas for crops and travel, to manage the land for specific species of both plants and animals, to hunt game, and for many other important uses. Fire was a tool that promoted ecological diversity and reduced the risk of catastrophic wildfires. “Cultural burning” refers to the Indigenous practice of “the intentional lighting of smaller, controlled, “cool” burns to provide a desired cultural service, such as promoting the health of vegetation and animals that provide food, clothing, and for ceremonial purposes. By burning an area in the fall, bison could be excluded by removing forage used during the winter months. In the spring, the areas burned in the fall would have excellent grazing and provide good hunting for bison and other game species.

Cultural burns have benefited both land and people, by improving soil quality and creating a healthy and resilient landscape. Some tribes in the western states used fire to ensure growth of straight and slender types of specific plants used for making woven baskets, or to provide habitat for certain bird species whose feathers were used for ceremonial dress.

Unfortunately, we have lost much of this ancient wisdom. Combined with a human induced warming planet, we have created raging, “hot” wildfires that scorch the earth, which unleash severe negative impacts on the natural order.

Thankfully, now there is better understanding that the Indigenous peoples’ tradition of human-ignited burns is a valuable way to reduce out of control wildfires. Traditional ecological knowledge is being incorporated more into modern management. This increased understanding of Indigenous traditions has led to many partnerships between Tribal, state, and Federal governmental agencies, with the goal of reintroducing cultural burns in many parts of the United States.

This is Jack Greene for Bridgerland Audubon Society & I’m wild about indigenous wildfire wisdom!

Credits:

Images: Courtesy Pixabay, Michael Haderer a.k.a. haderer17, contributor
Featured Audio: Courtesy & Copyright Kevin Colver, https://wildstore.wildsanctuary.com/collections/special-collections and
Anderson, Howe, and Wakeman..
Text & Voice: Jack Greene, Bridgerland Audubon, https://bridgerlandaudubon.org/
Additional Reading Links: Jack Greene & Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading:

Wild About Utah Pieces by Jack Greene, https://wildaboututah.org/author/jack/

Abrahamson, Ilana L. 2013. Fire regimes in Hawai’ian plant communities. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). https://www.fs.usda.gov/database/feis/fire_regimes/Hawaii/all.html

CKST (Confederated Salish and Kootenai Tribes). 2021. Fire on the Land: Native People and Fire in the Northern Rockies. Confederated Salish and Kootenai Tribes, Division of Fish, Wildlife, Recreation & Conservation. http://fwrconline.csktnrd.org/Fire/index.html

Natcher, David C., et al. “Factors Contributing to the Cultural and Spatial Variability of Landscape Burning by Native Peoples of Interior Alaska.” Ecology and Society, vol. 12, no. 1, 2007. JSTOR, http://www.jstor.org/stable/26267834. Accessed 15 Mar. 2026.

David C. Natcher. “Implications of Fire Policy on Native Land Use in the Yukon Flats, Alaska.” Human Ecology, vol. 32, no. 4, 2004, pp. 421–41. JSTOR, https://www.jstor.org/stable/4603529. Accessed 15 Mar. 2026.

Panek, D. and Kipfmueller, K. 2021. Apostle Islands 50th Anniversary Resource Stewardship Symposium. Day 1. April 1, 2021. https://friendsoftheapostleislands.org/2021/04/01/past-present-and-future-of-fire-in-the-apostle-islands/

Roos, Dave. 2020. Native Americans Used Fire to Protect and Cultivate Land. Indigenous people routinely burned land to drive, prey, clear underbrush and provide pastures. https://www.history.com/news/native-american-wildfires

White, G., Rockwell, D., and McDuff, E. 2021. Embracing Indigenous Knowledge to Address the Wildfire Crisis. U.S. Department of the Interior, Office of Wildland Fire. https://www.doi.gov/wildlandfire/embracing-indigenous-knowledge-address-wildfire-crisis

Avitt, Andrew, Tribal and Indigenous Fire Tradition, Fire & Aviation Management, USDA Forest Service, November 16, 2021, https://www.fs.usda.gov/about-agency/features/tribal-and-indigenous-fire-tradition

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Elusive Wolves

Wolf Footprints in the River of No Return Wilderness Courtesy & Copyright Eric Newell, Photographer
Wolf Footprints in the River of No Return Wilderness
Courtesy & Copyright Eric Newell, Photographer
“A deep chesty bawl echoes from rimrock to rimrock, rolls down the mountain, and fades into the far blackness of the night. It is an outburst of wild defiant sorrow…. Every living thing (and perhaps many a dead one as well) pays heed to that call. To the deer it is a reminder of the way of all flesh, to the pine a forecast of midnight scuffles and of blood upon the snow, to the coyote a promise of gleanings to come, to the cowman a threat of red ink at the bank…. Yet behind these obvious and immediate hopes and fears there lies a deeper meaning, known only to the mountain itself. Only the mountain has lived long enough to listen objectively to the howl of a wolf.”
Aldo Leopold, Thinking Like A Mountain

In January three wolves were killed by the US Department of Agriculture and Food in Cache Valley, near Avon. The wolves wandered into a corner of northern Utah (more or less north of I-80 and east of I-84) where wolves are exempt from protection.

These were not the first wolves in northern Utah in modern times. I came across tracks in the Bear River Range a dozen years ago. There have been at least 21 documented sitings of wolves in Utah since 2004.

Wolf Footprints Courtesy & Copyright Eric Newell, Photographer
Wolf Footprints
Courtesy & Copyright Eric Newell, Photographer

Wolf Footprints in Snow Courtesy & Copyright Eric Newell, Photographer Wolf Footprints in Snow
Courtesy & Copyright Eric Newell, Photographer

In the winter of 2002, on the last day of a four-day, fifty-five mile ski tour, deep in Idaho’s River of No Return Wilderness, a friend and I were setting a skin-track (a backcountry skiing term for breaking a trail) from the Salmon River up to the canyon rim. We traveled through spaced-out ponderosa pines through light snowflakes until we topped out on flat ground, 5,000 feet above the river. The forest abruptly transitioned to thick lodge pole pines. At our feet, all the snow was packed down with fresh wolf tracks. There was no new snow in the tracks, yet snow continued to fall from above. A pack of wolves had coalesced where we stood moments before our arrival.

Though I had seen wolf tracks before, I was still taken aback by the sheer size.

There are only two known cases of wolves killing people in the last century in North America. Statistically, you are more likely to be killed by a dear, an elk, a moose, a snake, a falling tree, an insect sting, lightening, or just about anything else than you are to be attacked by a wolf. Even with that knowledge, we could not escape a feeling of vulnerability. We looked around cautiously.

Five sets of evenly-spaced wolf tracks, parallel to one another, lead down the trail—the trail we had to follow. After about one hundred meters of skiing, one set of tracks peeled off to the left, disappearing into the lodgepole pine forest. A hundred meters later, a second set of wolf tracks turned off, this time to the right. A hundred meters more, and another set peeled off to the left. Consistent with pattern, a fourth set veered off to the right one hundred meters later, once again.

The wolf pack undoubtably watched us from all points of the compass. On high alert, we scanned the woods constantly for flashes of movement, for golden eyes peering from behind the timber, but saw nothing.

The middle set of tracks—the fifth wolf’s tracks—continued for another mile down the snow-covered trail before they too, turned off into the forest and vanished. We never caught a glimpse of any of them.

I think about those elusive wolves frequently. A wolf encounter is an zenith wilderness experience.

In Thinking Like a Mountain, Aldo Leopold described his younger self shooting a wolf and coming upon it in time to watch it die:
“I was young then,” he wrote, “and full of trigger-itch; I thought that because fewer wolves meant more deer, that no wolves would mean hunters’ paradise. But after seeing the green fire die [in the wolf’s eyes], I sensed that neither the wolf nor the mountain agreed with such a view.

I’m not suggesting wolves shouldn’t be managed, but I would like to see wildlife biologists making those decisions and that they are applied with consistency.

Leopold concluded,
“…Too much safety seems to yield only danger in the long run. Perhaps this is behind Thoreau’s dictum: ‘In wildness is the salvation of the world.’ Perhaps this is the hidden meaning in the howl of the wolf, long known among mountains, but seldom perceived among men.”

I am Eric Newell and I am wild about Utah.

Credits:
Images: Courtesy & Copyright Eric Newell, Photographer
Featured Audio: Courtesy & Copyright © Hugh Jones (Rubber Rodeo-Before I Go Away) and to J. Chase and K.W. Baldwin
Text: Eric Newell, Edith Bowen Laboratory School, Utah State University
Additional Reading: Eric Newell

Additional Reading

Wild About Utah Pieces by Eric Newell

Moilanen, Samantha, State officials killed three wolves in northern Utah. Here’s why., The Salt Lake Tribune, Jan. 27, 2026, 4:09 p.m., Updated: Jan. 28, 2026, https://www.sltrib.com/news/2026/01/27/utah-officials-kill-three-wolves/

Lofton, Shelby, 3 wolves killed in Cache County; picture prompts concern over ‘lethal removal’, KSL.com, KSL Broadcasting Salt Lake City UT, Deseret Digital Media, Jan. 28, 2026, https://www.ksl.com/article/51439305

Allen, Corbin, USU ecologists weigh in on wolves killed near Avon The Herald Journal a.k.a. HJNews, Jan 30, 2026, https://www.hjnews.com/news/local/usu-ecologists-weigh-in-on-wolves-killed-near-avon/article_8132fca5-2ca1-4d69-9ae7-3107b4008f52.html

Gilbert, Lael, USU Ecologists Offer Expert Perspective About Gray Wolves Found in Cache Valley, Land & Environment, USU Today, Utah State University, January 29, 2026, https://www.usu.edu/today/story/usu-ecologists-offer-expert-perspective-about-gray-wolves-found-in-cache-valley/

Leopold, Aldo, Thinking Like a Mountain,, Ecotone, Inc, https://www.ecotoneinc.com/wp-content/uploads/2021/01/aldo-leopold-tlam.pdf
See also this copy on the Sierra Club website: https://www.sierraclub.org/sites/www.sierraclub.org/files/sce/rocky-mountain-chapter/Wolves-Resources/Thinking%20Like%20a%20Mountain%20-%20Aldo%20Leopold.pdf

The Yellowstone Wolf Reintroduction: A Timeline, The Greater Yellowstone Coalition, https://greateryellowstone.org/yellowstone-wolf-reintroduction

Wolves in Utah, Utah Division of Wildlife Resources, Utah Department of Natural Resources, Last Updated: Tuesday, September 9, 2025, https://wildlife.utah.gov/wolves.html

History of Wolf Management, Yellowstone National Park, National Park Service, US Department of the Interior, https://www.nps.gov/yell/learn/historyculture/wolf-management.htm

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Symbiosis in the Desert

Summer temperatures in the Red Cliffs Desert Reserve may often exceed 100 degrees with only a 15 degree drop at night. This is not uncommon in this portion of the Mojave Desert. Over the millennia, amazing adaptations have been made by plants and animal alike to enhance their survival here. Anatomical, physiological and behavioral adaptations are on display every day. Some are quite obvious like cacti, whose leaves have been reduced to spines. What is not as obvious are the remarkable symbiotic relationships that have evolved to enhance survival in these extreme conditions

A symbiotic relationship is best defined as two organisms living together where one or both benefit from the relationship and neither is harmed

Lichen on Rock, Courtesy & Copyright Marshall Topham, Photographer
Lichen on Rock
Courtesy & Copyright Marshall Topham, Photographer
Anyone who has hiked in the deserts of Utah has encountered rocks splashed with a dazzling display of every color in the rainbow. We call them Lichens, but you may not be aware that they are examples of a mutualistic symbiosis where two organisms live together and both benefits from the relationship. Lichens are actually a partnership between a fungus and a photosynthetic organism, usually an alga or cyanobacterium. The fungus provides a protective structure and absorbs water and minerals from rain, dew, or dust. They also offer shelter from harsh desert conditions such as intense sunlight and temperature extremes. The alga or cyanobacterium are the source of color as they contain Chlorophyl, Carotenoids, Anthraquinones, Uric acid and Melanin’s. They produce food by photosynthesis, supplying life sustaining energy for both organisms

Desert Trumpet with Wasp Exit Holes, Courtesy & Copyright Marshall Topham, Photographer
Desert Trumpet with Wasp Exit Holes
Courtesy & Copyright Marshall Topham, Photographer
Another symbiotic relationship known as commensalisms, where one organism is benefited and the other is neither harmed or benefited, can be found associated with Desert Trumpet plants. These tall slender plants have hollow and dynamic inflated stems. The inflated portions of the stems are penetrated by Cynipidae wasps as they lay their eggs inside the hollow cavity where their larvae develop in a protected environment. The resulting hole left when the larvae emerge as adults, allows access inside the chamber, sometimes for years. a student of mine cataloged over 20 species of insects, spiders and mites that were secondary inhabitants of the hollow stems.

Rabbit Brush Gall, Opened Below Showing Occupant, Courtesy & Copyright Marshall Topham, Photographer
Rabbit Brush Gall
Opened Below Showing Occupant
Courtesy & Copyright Marshall Topham, Photographer

Creosote Gall, Courtesy & Copyright Marshall Topham, Photographer Creosote Gall
Courtesy & Copyright Marshall Topham, Photographer

Perhaps the most interesting of all symbiotic relationships found in the desert is the creation of insect galls. Galls are remarkable cancerous like plant growths, produced as a reaction to chemicals injected by insects. This is most commonly initiated by gall wasps, midges, and aphids. Galls come in all shapes, sizes and architectural design and serve as a protective capsule for insects eggs and developing larvae. Some look like cotton balls others resemble land mines or satellites or simple cupping protuberances on a leaf. These galls provide both food and shelter for the insect’s developing larvae. Despite the harshness of arid landscapes, deserts host a surprising diversity of galls. Each insect species typically induces a highly specific gall on a particular host plant. Chemicals secreted by the insect or its larvae manipulate the plant’s hormonal pathways, redirecting growth to form a unique structure that supports the insect’s life cycle. I am not averse to stopping and dissecting galls to examine the larva inside. I am occasionally surprised to find secondary inhabitants such as spiders, mites and the like. While insects benefit from the galls protection the host plants generally do not seem to Any significant harm.

I’m professor Marshall Topham and I’m Wild about Utah’s Mojave Desert.

Credits:

Images Courtesy & Copyright Marshall Topham, Photographer
Featured Audio: Courtesy & © Bob Holmes, Composer, Hugh Jones, Producer, Rubber Rodeo-Before I Go Away, 1984, https://www.discogs.com/release/9698183-Rubber-Rodeo-Scenic-Views
Text: Marshall Topham, https://ees.utahtech.edu/faculty-staff/
Additional Reading: Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

Wild About Utah pieces by Marshall Topham https://wildaboututah.org/author/marshall-topham/

Cane, Jim & Kervin, Linda, Gall Insects, Wild About Utah, January 13, 2011, https://wildaboututah.org/gall-insects/

“Sagebrush is an important member of an ecosystem that helps support many birds, reptiles, amphibians, and mammals, as well as an abundance of insects and microbes. One study found nearly 300 arthropod species directly living on just a few plants including- 72 spider, 237 insect, 42 of which were gall-forming, amongst many other species.”
Greene, Jack, Sage Steppe, Wild About Utah, June 15, 2015, https://wildaboututah.org/sage-steppe/

“Pests and Potential Problems Some ecotypes of rubber rabbitbrush are infected by stem galls, which are caused by two species of tephritid flies (Aciurina species) (McArthur 1979). There are no reports of negative effects caused by the galls. ”
Rubber Rabbitbrush, NRCS, USDA, https://www.nrcs.usda.gov/plantmaterials/mtpmcpg9696.pdf