Trouble with Tumbleweeds

Tumbleweed in Marsh, Courtesy and Copyright Anna Bengston
Tumbleweed in Marsh
Courtesy & Copyright Anna Bengston

Immortalized on the sets of old western movies, the tumbleweed has long been a classic symbol of the rugged, wide-open landscapes of the American West.  As a result, we can all easily recognize the spherical skeletons when we come across them caught on underbrush or piled up on fence lines here in Utah.  But this archetype is not an accurate representation of typical western United States or Utah flora, because tumbleweed– or Russian thistle –is an invasive weed.

The story begins in the late 19th century, when South Dakotan farmers reported seeing an unknown plant growing in their croplands.  Years later, it was identified as Russian thistle, scientific name Salsola tragus, a native plant of Russia and the Eurasian steppes east of the Ural Mountains.  It had been accidentally brought to the United States in a shipment of flaxseed.  By the time the U.S. Department of Agriculture published its inquiry into the plant in 1894, about 20 years after the plant’s introduction, 35,000 square miles of land had become “more or less covered” in Russian thistle.  Since that time the plant has spread into every state except Florida and Alaska.

So what is the problem?  Russian thistle, despite the nostalgic connotations of the old west it inspires, is a pest.  It easily takes root in disturbed or bare ground, moving in before native species are able to establish.  Drought conditions like those we have had in recent years only promote the plant’s proliferation.  The dryness hinders the growth of crops and native species, while the Salsola seed requires very little moisture in order to germinate and grows in where the crops and native species otherwise would have.  This can have deleterious effects on cropland and natural ecological functioning. Not to mention the wildfire risk the dry plant debris poses.

Salsola’s sheer numbers have also turned into more than just a nuisance.  Each plant may bear some 250,000 seeds that can be spread across miles as they drop off the rolling tumbleweed.  Consequently, we see images like those from Colorado earlier this year depicting piles of tumbleweeds filling streets, covering cars, and climbing the walls of houses.  In one instance, a windstorm clogged a town in New Mexico with 435 tons of the weed.

Utahns have yet to experience the full effects of this plant’s troublesome nature, but this does not mean we are immune; Russian thistle has been reported in every county of the state.  Luckily, for those fighting this plant’s advance, technology and research are on our side.  Several biological control options– from insects to fungal pathogens –are being tested as methods of natural Salsola population suppression with encouraging results.  But, all in all the management principles have not changed much since 1894: prevent the production and dispersal of seed across all infested areas.

For Wild About Utah, I’m Anna Bengtson.

Credits:
Image: Courtesy and Copyright Anna Bengston
Text: Anna Bengston

Sources & Additional Reading:

Banda, S. (2014, April 9). Tumbleweed troubles: Colorado drought creates perfect storm for road-clogging weeds. . US News. Retrieved May 2, 2014, from https://www.usnews.com/news/us/articles/2014/04/09/colorado-tumbleweeds-overrun-drought-areas

Coffman, K. (2014, March 27). Tumbleweeds plague drought-stricken American West.Reuters. Retrieved May 2, 2014, from https://www.reuters.com/article/2014/03/27/us-usa-tumbleweeds-idUSBREA2Q14E20140327

Dewey, L. (1894). The Russian thistle : its history as a weed in the United States, with an account of the means available for its eradication. U.S. Department of Agriculture, Division of Botany, Washington: Government Printing Office. Retrieved May 2, 2014, from https://archive.org/stream/russianthistleit15dewe#page/n5/mode/2up

EDDMapS. 2014. Early Detection & Distribution Mapping System. The University of Georgia – Center for Invasive Species and Ecosystem Health. Available online at https://www.eddmaps.org/; last accessed May 1, 2014.

Gilman, S. (2014, February 11). Troubleweeds: Russian thistle buries roads and homes in southeastern Colorado. . — High Country News. Retrieved May 2, 2014, from https://www.hcn.org/blogs/goat/troubleweeds-russian-thistle-buries-roads-and-homes-in-southeastern-colorado

Gilman, S. (2014, March 17). A plague of tumbleweeds: A handy pamphlet on how to dig out from a tumbleweed takeover of sci-fi proportions. . — High Country News. Retrieved May 2, 2014, from https://www.hcn.org/issues/46.5/a-plague-of-tumbleweeds

Main, D. (2011, March 2). Consider the tumbleweed. » Scienceline. Retrieved May 2, 2014, from https://scienceline.org/2011/03/virtues-of-a-weed/

Mazza, E. (2014, April 9). Tumbleweeds Reclaim West Amid Drought, Blocking Roads And Canals. The Huffington Post. Retrieved May 2, 2014, from https://www.huffingtonpost.com/2014/04/09/tumbleweeds_n_5115734.html

Ostlind, E. (2011, March 9). Tumbling along. — High Country News. Retrieved May 2, 2014, from https://www.hcn.org/blogs/goat/tumbling-along

Ostlind, E. (2001, May 20). It may be High Noon for tumbleweed. — High Country News. Retrieved May 2, 2014, from https://www.hcn.org/wotr/it-may-be-high-noon-for-tumbleweed

Russian Thistle (Salsola tragus). (n.d.). Russian Thistle (Salsola tragus). Retrieved May 2, 2014, from https://www.blm.gov/ca/st/en/fo/hollister/noxious_weeds/nox_weeds_list/russianthistle.html

USDA, NRCS. 2014. The PLANTS Database (https://plants.usda.gov, 8 May 2014). National Plant Data Team, Greensboro, NC 27401-4901 USA.

Medusahead Rye

Medusahead Rye Infestation
Courtesy and
Copyright © Steve Dewey

Flower
Courtesy and
Copyright © Steve Dewey

Plant
Courtesy and
Copyright © Steve Dewey

Weedy plants of old world origin threaten natural areas throughout the United States. An invading plant colonizing a completely new area often lacks the insects, diseases and herbivores that kept it in check back in its native homeland. If the introduced plant grows and spreads vigorously, it can spell disaster for the native inhabitants of its new home. With no natural controls in place, it may outcompete native plants and greatly diminish biodiversity. Disturbed or degraded habitats are most susceptible to invasion by Eurasian weeds.

Utah hosts many invasive weeds causing problems throughout the state. One Eurasian grass threatening sagebrush habitat and rangeland is medusahead rye. Medusahead rye probably came to the United States as a seed contaminant in the 1880’s. The seed head is heavy, so on its own, cannot spread far. But the seeds do have a ticket for dispersal: tufted hairs which cling and readily attach to livestock and vehicles. Once on site, medusahead grows vigorously, crowding out other plants.

Medusahead tissue contains abundant silica which slows its decomposition. The accumulation of dead material forms a dense thatch that smothers other plants. This dry thatch layer can also fuel wildfires. In addition, the gritty silica makes medusahead unpalatable, so both domestic and wild grazing animals avoid eating it. Infested ranches can lose 3/4 of their grazing capacity.

Sage grouse are already in trouble due to habitat loss, and medusahead has invaded more than 10 million acres of the sage brush that sage grouse call home. Once invaded by medusahead, sagebrush habitat is very difficult to restore. The best hope is to prevent or at least hinder its spread through management using controlled burns, herbicides and careful grazing. Non-native, invasive plants are among the most serious threats to our natural world and the habitats and species we know and love.

This is Linda Kervin for Bridgerland Audubon Society.

Credits:

Images: Courtesy Steve Dewey & www.invasive.org
Center for Invasive Species and Ecosystem Health, University of Georgia
Theme: Courtesy & Copyright Don Anderson as performed by Leaping Lulu
Text & Voice: Linda Kervin, Bridgerland Audubon Society

Additional Reading:

Linda Kervin’s pieces on Wild About Utah

The United States National Arboretum. formerly https://www.usna.usda.gov/Gardens/invasives.html

National Invasive Species Information Center. https://www.invasivespeciesinfo.gov/plants/medusahead.shtml

Forest Service Employees for Environmental Ethics. https://www.fseee.org/component/content/article/1002329

Utah State University Cooperative Extension. https://extension.usu.edu/cache/files/uploads/Medusahead%202-10.pdf

Killdeer, the bird that lives dangerously

Killdeer, the bird that lives dangerously

Killdeer on pebbles
Charadrius vociferus
Courtesy Wikipedia
Curt Hart, Photographer
Licensed under Creative Commons
Attribution 2.0 Generic license

 
Killdeer, the bird that lives dangerously
Killdeer nest on pebbles
Charadrius vociferus
Courtesy Wikipedia
Werther, Photographer
Courtesy US NPS and
J. Willard Marriott Library, University of Utah
Licensed under Creative Commons
Attribution 2.0 Generic license
Hi, this is Mark Larese-Casanova from the Utah Master Naturalist Program at Utah State University Extension.

The onset of springtime brings nesting birds in abundance. In the past week alone, blackbirds have been defending their territories in the marshes, goslings can be seen trailing behind their parents, and swallows are swooping and perching near their nests.
One bird that is impossible to ignore is the killdeer. Its call is loud, and easily recognizable.
[Audio Recording: Killdeer call, Audio file copyright 2006, Kevin Colver. All rights reserved, https://collections.lib.utah.edu/details?id=1117069&q=killdeer WesternSoundscape.org:
Licensed under Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License] It’s no coincidence that its scientific name is Charadrius vociferous.

Killdeer are a type of plover, similar to the snowy plovers that nest along the shores of Great Salt Lake. The killdeer, however, is well at home in dry upland habitats. The most peculiar characteristic of killdeer is that they are often seen and heard in the most unlikely of places- dirt roads, parking lots, or even construction sites.

Killdeer nest on open ground, digging just a shallow scrape in the soil. Gravel roads are often ideal nesting habitat because killdeer eggs blend in well with nearby pebbles. The spotted eggs and young hatchlings are very cryptic, invisible to the eye even when they are underfoot. This dangerous breeding strategy can often lead to trampled nests. Or, if a predator has a good sense of smell, the eggs and young are easily eaten.

Although, the killdeer has a trick up its sleeve (well… its wing)! When a predator, such as a fox, approaches the nest, the adult killdeer feigns a broken wing while walking away from its nest. This draws the attention of the predator, which thinks it’s found an easy meal, away toward the adult. Once it’s led the threat far enough from the nest, the adult killdeer takes off in flight, taunting the predator with its call.

It’s very hard to see a killdeer nest even when it’s obvious the adults are near it. Keep in mind, though, that time spent looking for a killdeer nest is time that the adults are not tending to the eggs or hatchlings, which puts their survival at risk. A bird that lives so dangerously can use all the help it can get.

For Wild About Utah, I’m Mark Larese-Casanova.

Credits:

Theme: Courtesy & Copyright Don Anderson Leaping Lulu
Images: Courtesy Wikimedia, Curt Hart as well as Clinton & Charles Robertson, Photographers
Audio: Courtesy Marriott Library, University of Utah & US National Park Service
Text & Voice:     Mark Larese-Casanova, Utah Master Naturalist Program at Utah State University Extension.

Additional Reading:

Cornell Lab of Ornithology. Killdeer. All About Birds. https://www.allaboutbirds.org/guide/killdeer/id

Tekiela, S. 2003. Birds of Utah. Adventure Publications, Inc. Cambridge, Minnesota.
https://www.amazon.com/Birds-Utah-Field-Guide-Tekiela/dp/1591930197

Killeer, Species, Utah Division of Wildlife Services, Utah Department of Natural Resources. Killdeer. https://fieldguide.wildlife.utah.gov/?species=charadrius%20vociferus

Ring-Necked Pheasant

Native distribution the Common Pheasant in Eurasia, Courtesy Wikimedia, licensed under GNU Free Documentation LIcense v1.2 https://en.wikipedia.org/wiki/en:GNU_Free_Documentation_License
Native distribution of the
Common Pheasant in Eurasia
Courtesy Wikimedia
Licensed Under CCL Attribution Share-Alike 3.0 Ported
 
wikipedia.noon.Pheasant.250x164.jpgMale Ring-Necked Pheasant
Courtesy Wikimedia
Gary Noon, Photographer
Licensed Under CCL Attribution Share-Alike 2.0 Ported
 
wikimedia.Manske.Ringnecked_pheasant_flying_USFWS.250x189.jpgMale Ring-Necked Pheasant in flight
Courtesy US FWS & Wikimedia
Magnus Manske, Photographer
 
wikimedia.Male_and_female_pheasant.250x188.jpgMale(R) and Female(F)
Ring Necked Pheasant
Courtesy Wikimedia, Chris O, Photographer
Licensed Under CCL Attribution Share-Alike 3.0 Ported
 

Hi I’m Holly Strand from the Quinney College of Natural Resources at Utah State University.

It’s spring, and the birds are starting to make quite a racket outside. Here’s a bird we hear every day now, in the morning or at dusk: [https://www.xeno-canto.org/explore?query=common+pheasant]
That’s the sound of a male ring-necked pheasant crowing and then beating his wings against his body. The male is announcing his territory which may be 7 acres or more. Under the right conditions his announcement can carry up to a mile. Looking out the window, I often see our resident pheasant marching around the yard, sometimes herding a female or two, or three. For the dominant males keep female harems during the mating season.

Last year another male wandered up our driveway. This led to a skirmish. The two males held their heads low, rumps raised and tails straight out behind. They pecked and said some choice words to each other in pheasant language. Periodically they burst into a fluttering fight that involved some vicious biting, and kicking. Eventually the intruder left leaving the other to resume his post as head pheasant of our yard.

If you haven’t ever seen a ring-necked pheasant you are in for a treat when you do. The males have a green iridescent head, a bright red face, and a distinctive white ring collar. Their spectacular multicolored plumage ends in a long coppery tail cropped with thin black bars. The females are much smaller; their feathers a mottled mixture of brown and buff with dark markings. While not so beautiful, they are much harder to see and therefore are safer from predators.

All pheasants are natives of the Old World–more specifically of southern Asia. The ring-necked pheasant is not a distinct species there. It’s an informal name that refers to certain subspecies of the Common Pheasant, which occupies a huge territory stretching from the Black Sea and Caucasus region through Central and Middle Asia all the way through China Korea and the Russian Far East. Throughout this enormous territory, over 34 different subspecies of common pheasant have evolved– some with a ringed marking around their necks and some without. What we have here in America is a hybrid mix of a few of these ring-necked subspecies—mostly from China.

Because of their huge popularity as a game bird, ring-necked pheasants have been transplanted all over the world. In the U.S. the pheasant was introduced on the west coast in the 1860’s , but now you can find them in all but the most southern states. They are especially concentrated in our central Corn Belt region.

The ring-necked pheasant was first introduced to Utah around 1890. Their numbers are maintained through transplanting, natural dispersion and further releases of game-farmed birds. Some of those birds end up on the dinner table and some of them find refuge on private lands and in Utah neighborhoods like ours.

Thanks to Paul Marvin for his Xeno-Canto recording.

For sources, pictures and more information, go to www.wildaboututah.org.

For Wild About Utah, I’m Holly Strand.

Credits:

Images:

  1. Native distribution the Common Pheasant in Eurasia
    https://commons.wikimedia.org/wiki/File:Phasianus_colchicus_distribution.png
  2. Male Ring-Necked Pheasant https://commons.wikimedia.org/wiki/File:Pheasant.jpg
  3. Male Ring-Necked Pheasant in flight https://commons.wikimedia.org/wiki/File:Ringnecked_pheasant_flying_USFWS.jpg
  4. Male and female Ring-Necked Pheasant https://commons.wikimedia.org/wiki/File:Male_and_female_pheasant.jpg licensed under Creative Commons Attribution 3.0 License.

Text: Holly Strand

Sources & Additional Reading

Giudice, John H. and John T. Ratti. 2001. Ring-necked Pheasant (Phasianus colchicus), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: https://bna.birds.cornell.edu/bna/species/572

Heinz, Gary H. and Leslie W. Gysel. 1970. Vocalization Behavior Of The Ring-Necked Pheasant. The Auk, 87: 279-295. https://sora.unm.edu/sites/default/files/journals/auk/v087n02/p0279-p0295.pdf

Johnsgard, P. A. 1999. The pheasants of the world. 2nd ed. Smithson. Inst. Press, Washington, D.C.
All About Birds: Ring-Necked Pheasant https://www.allaboutbirds.org/guide/ring-necked_pheasant/id

Audio:

Paul Marvin, XC163168. Accessible at www.xeno-canto.org/163168. License: Creative Commons Attribution-NonCommercial-ShareAlike 3.0
Date 2011-06-04
Location National Bison Range, Dixon, Montana