migration Archives - Wild About Utah

July 3, 2023September 11, 2023

Escape: Wildlife vs. Traffic

Deer and other wildlife have been migrating across our state much longer than humans. When people drove horse-drawn wagons and slower vehicles, wildlife could easily pass without a problem. However, with the introduction of fenced highways and their increased speed and traffic, problems quickly arose. In this case, the problem is mostly with mule deer, because they comprise 90% of the animals migrating in Utah. Robert Frost wrote that “Good fences make good neighbors.” But neighbors need to cooperate to maintain a fence, and even with fences in place, what if the neighbors are animals? The problem is how to keep migrating deer from jumping fences and causing accidents.

Animal/vehicle encounters cause over 5,000 animal deaths in Utah each year. Beyond the loss of life, it is also an economic problem, not only for wildlife management but also for vehicle owners. Some estimate the deer are worth more than $2,500 each. Joshua Coursey wrote in the Deseret News, that the “estimated cost of collisions with mule deer in Utah reached close to $50 million in 2021.” That’s why the Utah Department of Transportation (UDOT) and the Division of Wildlife Resources (DWR) have worked for decades to reduce wildlife/vehicle encounters. As noted, fencing alone does not work; consequently, highway managers have had to find ways to get trapped deer across and away from fenced roads.

When USU researchers studied escape mechanisms in Sardine canyon, they found earthen escape mounds were superior to one-way, metal gates. Climbing a hill is more natural to deer than pushing through a metal gate. These mounds enable a one-way jump to safety. However, escape alone does not solve the driving force of migration.

A more effective way to handle migrating animals is to guide them above or below the road. UDOT explains: “Studies have shown there is a 90% reduction in wildlife/vehicle collisions when there is a crossing structure and fence in the area.” Since 1975, when UDOT built its first wildlife overpass near Beaver, Utah, deer, moose and elk, along with bear and mountain lions have begun to use wildlife underpasses and overpasses. More recently, a larger overpass was built in Parley’s Canyon on I-80. Videos show a variety of animals who successfully traverse that overpass.

But escape ramps and overpasses aren’t the only tools available. Passage is also possible using creek beds or culverts crossing under roads. Tall fences are effective in guiding animals toward structures and preventing roadway access. Then, to encourage faster adoption, contractors have found they can walk a herd of cattle through the structure, overpowering human scents

When on I-15, I-80, I-70, or in our canyons, watch for overpasses, underpasses, one-way gates and exit ramps. They demonstrate a few ways the DWR and UDOT are working together to preserve human and animal lives.

This is Lyle Bingham, and I’m Wild About Utah and our 15 years on Utah Public Radio.

Credits:
Videos: Utah Division of Wildlife Resources https://wildlife.utah.gov
Photos: Courtesy & Copyright Lyle Bingham, Photographer
Featured Audio: Courtesy & Copyright © Friend Weller, Utah Public Radio upr.org
Text: Lyle Bingham, https://bridgerlandaudubon.org/
Additional Reading: Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

Wild About Utah, Lyle Bingham’ Wild About Utah Postings

USU-Connected Researchers Mitigating Wildlife Migration Issues:
John Bissonette, Patricia Cramer and Mary Hammer

Bissonette, J. A. and M. Hammer. 2000. Effectiveness or earthen return ramps in reducing big game highway mortality in Utah. UTCFWRU Report Series 2000 (1): 1-29.https://escholarship.org/content/qt2f1080nm/qt2f1080nm.pdf

Buford, Daniel, Cramer, Patricia, and Simpson, Nova, Integrating Wildlife Connectivity and Safety Concerns into Transportation Planning Processes, Federal Highway Administration, US Department of Transportation, Winter 2023, https://highways.dot.gov/public-roads/winter-2023/04

Wildlife Connectivity Institute, https://www.wildlifeconnectivity.org/

“A dynamic part of a National Cooperative Highway Research Program sponsored research project titled; ‘Evaluation of the Use and Effectiveness of Wildlife Crossings.'”, https://www.wildlifeandroads.org/

Muffoletto, Mary-Ann, USU Ecologist [Patricia Cramer] Honored for Wildlife Highway Crossing Research, Utah State Today, Utah State University, April 16, 2015, https://www.usu.edu/today/story/usu-ecologist-honored-for-wildlife-highway-crossing-research

Muffoletto, Mary-Ann, USU Ecologist Leading Efforts to Stop Wildlife-Vehicle Collisions, Utah State Today, Utah State University, September 2, 2010, https://www.usu.edu/today/story/usu-ecologist-leading-efforts-to-stop-wildlife-vehicle-collisions

DWR: “It’s the video seen around the world! This compilation of footage shows various animals using the wildlife crossing constructed in 2018 over Interstate 80 near Parleys Summit. What’s especially notable with this crossing is how many animals are already using it; usually it takes several years for wildlife crossings to become widely used.

This video went viral near the end of 2020, and was celebrated as great progress in the problem of wildlife-vehicle collisions. Special thanks to the Utah Division of Wildlife Resources, Utah Department of Transportation and Summit County for the footage.” https://wildlifemigration.utah.gov/stories/parleys-summit-wildlife-crossing/

UDOT: Baker Canyon Wildlife Crossing Installation

DWR: “Utah’s highways are vital to the health of the state. They can present a significant barrier for wildlife migration. In order to prevent automobile/wildlife collisions and to increase habitat availability for animals, Wildlife biologists and the Utah Department of Transportation have designed and installed several overpasses and underpasses to allow wild animals to safely cross the highway.”

Green, Ashley, Highway wildlife crossings, Connections between habitats are important for wildlife. Wildlife Blog, Utah Division of Wildlife Resources, Utah Department of Natural Resources, https://wildlife.utah.gov/news/wildlife-blog/675-highway-wildlife-crossings.html

Kenley Fry, Rachel, Safe passage: Sardine Canyon wildlife crossings improved, The Herald Journal, October 21, 2012 Updated May 4, 2015 https://www.hjnews.com/allaccess/safe-passage-sardine-canyon-wildlife-crossings-improved/article_2d38f7f4-1b1d-11e2-a588-0019bb2963f4.html

Mapping Migration Corridors, Wildlife Migration, Utah Wildlife Migration Initiative, Division of Wildlife Resources, Department of Natural Resources, State of Utah, https://wildlifemigration.utah.gov/land-animals/corridors/

March 6, 2023September 11, 2023

Wildlife Escape and Passage

Right of Way Escape Ramp Near Santaquin, UT Courtesy & Copyright Lyle Bingham, Photographer — Right of Way Escape Ramp
Near Santaquin, UT
Courtesy & Copyright Lyle Bingham, Photographer

Safety Side, Corner Escape Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

One-way, Metal Gate
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Climbing Side, Corner Escape Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Underpass and Jump Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Rural Road Leading to Santaquin
Wildlife Management Area
Courtesy & Copyright Lyle Bingham, Photographer

Safety Side, Corner Escape Ramp Near Santaquin WMA Courtesy & Copyright Lyle Bingham, Photographer — Right of Way Escape Ramp
Near Santaquin, UT
Courtesy & Copyright Lyle Bingham, Photographer

Safety Side, Corner Escape Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

One-way, Metal Gate
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Climbing Side, Corner Escape Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Underpass and Jump Ramp
Near Santaquin WMA
Courtesy & Copyright Lyle Bingham, Photographer

Rural Road Leading to Santaquin
Wildlife Management Area
Courtesy & Copyright Lyle Bingham, Photographer

This is Lyle Bingham, and I’m Wild About Utah and our 15 years on Utah Public Radio.

Additional Reading

Wild About Utah, Lyle Bingham’ Wild About Utah Postings

USU-Connected Researchers Mitigating Wildlife Migration Issues:
John Bissonette, Patricia Cramer and Mary Hammer

Wildlife Connectivity Institute, https://www.wildlifeconnectivity.org/

UDOT: Baker Canyon Wildlife Crossing Installation

May 30, 2022May 21, 2023

BirdCast Dashboard Shows
Peak Need for Dark Skies
and the Mantra to
Dim the Lights for Birds at Night

Milky Way above Chesler Park Canyonlands National Park Courtesy US National Park Service, Emily Ogden, Photographer — Milky Way above Chesler Park
Canyonlands National Park
Courtesy US National Park Service,
Emily Ogden, Photographer
Canyonlands is one of many parks in southern Utah with the International Dark Sky Park designation

BirdCast Migration Dashboard
https://dashboard.birdcast.info/
Courtesy BirdCast, The Cornell Lab of Ornithology
Cornell University

BirdCast Migration Dashboard https://dashboard.birdcast.info/ Courtesy BirdCast, The Cornell Lab of Ornithology Cornell University — Milky Way above Chesler Park
Canyonlands National Park
Courtesy US National Park Service,
Emily Ogden, Photographer
Canyonlands is one of many parks in southern Utah with the International Dark Sky Park designation

BirdCast Migration Dashboard
https://dashboard.birdcast.info/
Courtesy BirdCast, The Cornell Lab of Ornithology
Cornell University

Songbirds migrate at night to avoid predators, air turbulence, and daytime heat. Down here on the ground we are unaware of the miraculous and essential voyagers flying up to 10,000 feet above us, but thanks to dedicated scientists collaborating for years on end we have free access to the data and graphs of these massive population shifts. The BirdCast Dashboard uses weather radar to track bird migrations, providing real time data showing peak migrations at the website dashboard.birdcast.info.

Did you know that World Migratory Bird Day is celebrated in May and October? Those are the peak months for spring and fall migrations, and the magnitudes of those flocks are considerable. Two thirds of songbirds migrate at night, and on the evening of Sunday, May 15, 2022, one million one hundred and fifty one thousand five hundred (1,151,500) birds crossed Cache County, Utah! Yes, 1,151,500 birds crossed Cache County, Utah, in one night!

It’s important to know when migrations are occurring because skyglow from artificial lighting causes bird disorientation and millions of bird fatalities each and every year. The declining bird population is problematic for many reasons, not least of which because some of the most intrepid travelers like the three-inch-long Rufous Hummingbird, which travels 3,900 miles each way from Alaska to Mexico, are keystone species with ecosystem services such as pollination and consumption of pests such as aphids and mosquitoes.

The Bobolink travels 12,500 miles to and from southern South America every year – those imperiled birds breeding at the west end of Logan may travel the equivalent of 4 or 5 times around the circumference of the earth throughout their lifetime. They come to Cache Valley for the habitat, stay to raise their young, and then head back to their distant winter feeding grounds.

A few top-notch steps toward bird-friendly living include the prevention of light trespass and skyglow, especially from 11 p.m. to 6 a.m., March – May, and August – October. Close curtains to prevent the indoor light from escaping, and avoid blue light outdoors – choose warm white or amber lights, and shield light bulbs to direct light downward. Motion-activated light bulbs are a great way to safely light the way while cutting down on unnecessary outdoor lighting, especially since there’s no clear scientific evidence that outdoor lighting reduces crime. Excess light, on the other hand, is a crime, and light trespass is an enforceable infraction. Light pollution is harmful to humans and deadly for birds.

Logan Mayor Holly Daines signed a Proclamation to Dim the Lights for Birds at Night because reducing skyglow and light trespass saves energy and birds by reducing the often fatal disorientation caused by artificial light.

Dark Skies are filled with bright stars, so by jingles, what say we all “Dim the lights for birds at night!”

I’m Hilary Shughart with the Bridgerland Audubon Society, and I am Wild About Utah!

Credits:
Images: Milky Way above Chesler Park, Canyonlands National Park, Courtesy US National Park Service, Emily Ogden, Photographer, https://www.nps.gov/media/photo/gallery-item.htm?id=286169fc-2bab-40e0-bf8b-a13b5170aeb3&gid=2ADECB87-1DD8-B71B-0B09BD0B18C96667
Screenshot: BirdCast Migration Dashboard, Courtesy BirdCast, The Cornell Lab of Ornithology, Cornell University, https://dashboard.birdcast.info/
Featured Audio: Courtesy & Copyright © Kevin Colver, https://wildstore.wildsanctuary.com/collections/special-collections/kevin-colver
Text: Hilary Shughart, President, https://bridgerlandaudubon.org/
Additional Reading: Hilary Shughart and Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

WildAboutUtah pieces by Hilary Shughart, https://wildaboututah.org/author/hilary-shughart/

Miller, Zach, Dark Sky Parks, Wild About Utah, Nov 2, 2020, https://wildaboututah.org/dark-sky-parks/

Leavitt, Shauna, Natural Quiet and Darkness in our National Parks, Wild About Utah, May 6, 2019 & August 3, 2020, https://wildaboututah.org/natural-quiet-and-darkness-in-our-national-parks/

Rask, Kajler, Dark Skies, Wild About Utah, Jan 1, 2018, https://wildaboututah.org/dark-skies/

Dark Skies, Bird-Friendly Living, Advocacy, Bridgerland Audubon Society, May 2022, https://bridgerlandaudubon.org/our-projects/advocacy/bird-friendly-living/dark-skies/

Dim the Lights for Birds at Night, Bridgerland Audubon Society, May 3, 2022, https://bridgerlandaudubon.org/our-projects/advocacy/bird-friendly-living/dark-skies/

International Dark Skies Association, Utah Chapter, https://utah.darksky.ngo/

Welzbacker, Hannah, Tracking a Night-Time River of Birds, Cool Green Science, The Nature Conservancy, April 13, 2021, https://blog.nature.org/science/2021/04/13/tracking-a-night-time-river-of-birds/?fbclid=IwAR18LKCQUmSlb-hHM1u4FXfVe-GqyWTwiPx91obUQbq2uB9kcPU2djlCnlk

BirdCast Dashboard, The Cornell Lab of Ornithology, Cornell University, https://dashboard.birdcast.info/

Global Bird Collision Mapper, Fatal Light Awareness Program (FLAP) Canada, https://birdmapper.org/app/

Lowe, Joe, Do Hummingbirds Migrate?, American Bird Conservancy, September 12, 2019, https://abcbirds.org/blog/do-hummingbirds-migrate/

Bobolink (Dolichonyx oryzivorus), “Bobolink is one of the few grassland-dependent species of concern that breed in Utah”, Utah Division of Wildlife Resources, April 20, 2020, https://wildlife.utah.gov/pdf/sensitive_species/birds_bobolink_2020.pdf

Bobolink (Dolichonyx oryzivorus), All About Birds, Cornell Lab of Ornithology, Cornell University, https://www.allaboutbirds.org/guide/Bobolink

Lighting, Crime and Safety, International Dark-Sky Association, https://www.darksky.org/light-pollution/lighting-crime-and-safety/#:~:text=There%20is%20no%20clear%20scientific,cost%20a%20lot%20of%20money

2022 Proclamation “Dim the Lights for Birds at Night”, https://bridgerlandaudubon.org/dim-the-lights-for-birds-at-night/

The use of the “by jingles” exclamation is in homage to Warren Dahlin’s moving Moth Radio Hour story “Open My Eyes”, in which he “makes a friend who stays with him in life and in death.” Heard on Utah Public Radio (5/28/22), The Moth, https://themoth.org/radio-hour/squeaky-wheels-1

Owens, Avalon & Cochard, Précillia & Durrant, Joanna & Farnworth, Bridgette & Perkin, Elizabeth & Seymoure, Brett. (2019). Light pollution is a driver of insect declines. Biological Conservation. 241. 108259. 10.1016/j.biocon.2019.108259. https://doi.org/10.1016/j.biocon.2019.108259

September 20, 2021March 27, 2023

The Great Salt Lake’s Importance for Birds

Decreasing water levels in the southern arm of the Great Salt Lake expose microbialite communities that are normally underwater. Courtesy USGS, Hannah McIlwain, Photographer — Decreasing water levels in the southern arm of the Great Salt Lake expose microbialite communities that are normally underwater.
Courtesy USGS, Hannah McIlwain, Photographer

I first met the Great Salt Lake in 1964 with two Central Michigan University college buddies on our way to Los Angeles. We heard you could float in its magical waters. Sure enough- it worked and we bobbed in its gentle waves oblivious to the many other virtues of this extraordinary water body. The Great Salt Lake’s Importance

This saltwater marvel is the largest wetland area in the American West. Its 400,000 acres of wetlands provide habitat for over 230 bird species traveling from the tip of South America, north to Canada’s Northwest Territories and as far west as Siberia. These wetlands and surrounding mudflats are vital habitat for 8-10 million individual migratory birds with many species gathering at the Lake in larger populations than anywhere else on the planet.

In 1991 the Great Salt Lake was declared a site of “hemispheric importance,” the highest level of designation given to a site by the Western Hemisphere Shorebird Reserve Network. The Reserve conserves shorebird habitat through a network of key sites across the Americas. Salt Lake receives the largest percentage of the world’s population of migrating Eared Grebes, nearly one-third of Wilson’s Phalaropes, more than half of American Avocets, and 37 percent of Black-necked Stilts. The lake’s shoreline, playas and mudflats also support 21 percent of the North American breeding population of Snowy Plovers, a species identified as one of greatest conservation needs by Utah’s Wildlife Action Plan.

These shorebirds are among nature’s most ambitious, long-distance migrants. But their numbers are dropping quickly. Shorebirds are showing the most dramatic declines among all bird groups. Species that undertake hemispheric migrations rely on specific habitats and food sources to survive, but these resources are increasingly under threat from human disturbance including habitat loss and degradation, over-harvesting, increasing predation, and climate change. As humans have continued to alter the landscape, shorebird populations continue to drop, with accelerated declines in recent decades.

Of 52 shorebird species that regularly breed in North America, 90% are predicted to experience an increase in risk of extinction. This includes 28 species already considered at high risk, and 10 imperiled species that face even greater risk.

At the base of Salt Lake’s food chain are microbialites, underwater reef-like rock mounds created by millions of microbes. These structures and their microbial mats form the base of the entire Great Salt Lake ecosystem, serving as a primary food source for brine shrimp and brine flies, which are the main food source for these aquatic birds. Falling water levels exposing the microbialites to air could trigger a collapse in the lake’s food chain according to a July study by the Utah Geological Survey.

So we humans aren’t the only one’s suffering from our disappearing Lake. Thank goodness we have awakened to this extraordinary resource found on our doorstep with many organizations and agencies attempting to save what remains for our health, wealth, and for the millions of threatened feathered friends that grace our skies, and our lives. Last May, Utah Governor Cox declared 2021 the year honoring shorebirds. We can do our part by taking action on conserving water and energy.

Jack Greene for Bridgerland Audubon Society and I’m wild about Utah and its magnificent great lake.

Credits:
The Great Salt Lake’s Importance
Picture:
Audio: Courtesy & © Kevin Colver https://wildstore.wildsanctuary.com/
Text: Jack Greene, Bridgerland Audubon, https://bridgerlandaudubon.org/
Additional Reading: Lyle W Bingham, Webmaster, and Jack Greene, Author, Bridgerland Audubon, https://bridgerlandaudubon.org/

Additional Reading:

Jack Greene’s Postings on Wild About Utah, https://wildaboututah.org/author/jack/

Strand, Holly, Important Bird Areas, Wild About Utah, October 21, 2008, https://wildaboututah.org/important-bird-areas/

Strand, Holly, One of the World’s Largest Shrimp Buffets, Wild About Utah, June 3, 2008, https://wildaboututah.org/one-of-the-worlds-largest-shrimp-buffets/

Chambless, Ross, When the Great Salt Lake we know is gone, what shall we name it?, Commentary, The Salt Lake Tribune, August 19, 2021, https://www.sltrib.com/opinion/commentary/2021/08/19/ross-chambless-when-great/ [Accessed September 19, 2021]

Shorebirds are among nature’s most ambitious, long-distance migrants. Western Hemisphere Shorebird Reserve Network (WHSRN), https://whsrn.org/about-shorebirds/shorebird-status/

Drought Negatively Impacting Great Salt Lake Microbialites and Ecosystem, Utah Geological Survey (UGS), Utah Department of Natural Resources, State of Utah, July 15, 2021, https://geology.utah.gov/drought-negatively-impacting-great-salt-lake-microbialites-and-ecosystem/

Chidsey, T.C., Jr., Eby, D.E., Vanden Berg, M.D., and Sprinkel, D.A., 2021, Microbial carbonate reservoirs and analogs
from Utah: Utah Geological Survey Special Study 168, 112 p., 14 plates, 1 appendix, https://doi.org/10.34191/SS-168

Riding, Robert, Definition: Microbialites, Stromatolites, and Thrombolites, Encyclopedia of Geobiology, SpringerLink, Springer Nature Switzerland AG. Part of Springer Nature., https://link.springer.com/referenceworkentry/10.1007%2F978-1-4020-9212-1_196

Romero, Simon, Booming Utah’s Weak Link: Surging Air Pollution, The New York Times, Sept. 7, 2021, https://www.nytimes.com/2021/09/07/us/great-salt-lake-utah-air-quality.html

2015–2025 Wildlife Action Plan, Division of Wildlife Resources, Department of Natural Resources, State of Utah, July 1 2015, https://wildlife.utah.gov/discover/wildlife-action-plan.html

Governor Cox Declares 2021 as Year of the Shorebird at Great Salt Lake, Declaration celebrates 30th anniversary of Great Salt Lake as a Western Hemisphere Shorebird Reserve Network Site, Western Water News, National Audubon, May 12, 2021, https://www.audubon.org/news/governor-cox-declares-2021-year-shorebird-great-salt-lake
See also: https://wildlife.utah.gov/news/utah-wildlife-news/1182-cox-declares-2021-year-of-shorebird-great-salt-lake.html

Gov. Cox Issues Drought Executive Order, Governor.utah.gov, March 17, 2021, https://governor.utah.gov/2021/03/17/gov-cox-issues-drought-executive-order/

Written by Hall Crimmel & Dan Bedford, Filmed and Edited by Isaac Goeckeritz, iUtah EPSCor, Rachel Carsen Center Environment & Society,
Based on the book Desert Water; The Future of Utah’s Water Resources edited by Hall Crimmel and published by University of Utah Press, 2014

Carney, Stephanie, Vanden Berg, Michael D., GeoSights: Microbialites of Bridger Bay, Antelope Island, Great Salt Lake, Survey Notes, Utah Geological Survey, State of Utah, January 1, 2022, https://geology.utah.gov/map-pub/survey-notes/geosights/geosights-microbialites-of-bridger-bay-antelope-island-great-salt-lake/

Salt Lake Brine Shrimp, https://saltlakebrineshrimp.com/harvest/

Williams, Terry tempest, Opinion, I Am Haunted by What I Have Seen at Great Salt Lake, The New York Times,, March 25, 2023, https://www.nytimes.com/2023/03/25/opinion/great-salt-lake-drought-utah-climate-change.html