Exotic Invasive Species

Teaching About Invasive Species Used by permission, Tim Grant, author & publisher
Teaching About Invasive Species Used by permission, Tim Grant, author & publisher

Exotic invasive species. “Exotic”, sounds rather alluring, but “invasive” implies something completely different and undesirable.

Basically, we are referring to any species that is not native to that ecosystem, it can survive and reproduce there, and by its introduction can cause harm to the environment, the economy, wildlife, and human health. And this doesn’t mean just plants. There are also invasive animals and even microorganisms that can disrupt the balance that maintains natural ecosystems.

They usually have some means of dominance over native species, such as superior reproduction or faster growth success. They may also have unique forms of defense against native predators. Being newly introduced to an area, they may not even have any competition from similar species, or natural predators may not exist in their new area at all. Their advantages can outcompete native species at alarming rates and result in a reduction, or elimination, of biodiversity in huge areas. And research has proven that having a diversity of native life forms improves the health of ecosystems.

Organizations dealing with agriculture, forestry, fisheries, wildlife and waterways estimate that the annual costs to try to control invasive species in our country exceeds $120 billion dollars. And, whether you are a supporter of the Endangered Species Act or not, a quote from the U.S. Fish & Wildlife Service states “More than 400 of the over 1,300 species currently protected under the Endangered Species Act,…..are considered to be at risk at least partly due to displacement by, competition with, and predation by invasive species.”

In Utah, there are 596 invasive plant species, 28 invasive insects, and a few mammals too. I’ll simply mention a few and why they are so problematic: In the water we are plagued with Quagga and Zebra Mussels, Carp , and plants like Purple Loosestrife. One adult Zebra Mussel can produce one million larvae that mature in one year.

Africanized Honeybees have been sneaking into our State, and they can be very aggressive.
Some of the more common invasive plants include: Russian Olive, Field bindweed, Dyer’s Woad, Russian and Canada thistle, Stinging Nettle, Tamarisk, …..even Kentucky Bluegrass is on the list. The yellow Dyer’s Woad plant that covers many of our hillside grazing lands, is prolific and may produce 10,000 seeds per plant

The European Starling and English House Sparrow are two birds that don’t belong here, but have been extremely successful by inhabiting all 50 States and occupy nesting sites and deplete food sources of our native American songbirds.

Mammals include the Red Fox, Muskrat, White-tailed Deer (which might excite some hunters), and the adorable Raccoon which may be one of the best examples of the problems invasive species can cause. Raccoons can damage homes, fruit trees, and gardens, kill chickens, cats, migratory birds, pheasants, ducks, quail and grouse. They can also spread disease to other mammals as they eat out of garbage cans, carry fleas, ticks, lice, distemper, mange, and blood tests have shown that 80% of them have been exposed to rabies as indicated by the presence of a rabies titer.

For more information, search online for the topic of interest, plus Utah State University. Or get the book “Teaching About Invasive Species” edited by Tim Grant.

This is Ron Hellstern, and I am Wild About Utah.
 
Credits:

Images: Courtesy & Copyright Tim Grant, GreenTeacher.com
Audio: Courtesy Western Soundscape Archive, University of Utah, Sound provided by Jeff Rice, licenesed under CCA-ND
Text: Ron Hellstern, Cache Valley Wildlife Association

Additional Reading

Ron Hellstern’s Wild About Utah Posts

Leavitt, Shauna, The Invasive Phragmites, https://wildaboututah.org/invasive-phragmites/

Don’t ditch a fish!, Utah Division of Wildlife Resources, https://wildlife.utah.gov/dont-ditch.html

Don’t Let it Loose, Utah Division of Wildlife Resources, https://www.dontletitloose.com/rehoming-a-pet/utah/

Grant, Tim, Green Teacher, October 31, 2014, https://www.amazon.com/Teaching-about-Invasive-Species-Grant/dp/0993775330

Honeybees

Honeybees: Bee Approaching Sunflower Courtesy & Copyright Mary Heers, Photographer
Bee Approaching Sunflower
Courtesy & Copyright Mary Heers, Photographer
I was a bit surprised when I met a local beekeeper who insisted she’d never eat any honey except that produced by bees in the mountains above Cache Valley. It made sense that the taste of honey would be determined by the flowers where the bees collected nectar and pollen. It turns out the Forest Service issues permits to local beekeepers to put hives around Tony Grove

Wanting to know more, I dropped into the Honeyland store in Cache Valley and was soon mesmerized by the active cut-away hive on display. It was a teacher’s dream come true – hundreds of bees – all diligently on task. Wide-eyed, I watched as a bee flew in at the bottom of the screen through a tunnel under the window looking very much like a bike rider with two full paniers She deposited the full sacks of pollen and then she began to dance. This took me quickly to the internet to learn more.. The bees dance is called a “waggle dance” – a straight line calibrated to communicate how far away the food source is, and a circular return arc to orient the path to the food. The waggle dancing bee can direct her sisters to a food source up to five miles away.
  • It takes 550 worker bees visiting 2 million flowers to make 1 pound of honey.
  • Top speed for a bee is 15 mph.
  • Each honey bee makes one twelfth of a teaspoon of honey in her lifetime.

  • I soon returned to the store’s cut away hive and finally found the queen – a bit tricky as she looks like all the others except she’s one and a half times bigger. I watched as she dipped her tail into one hexagonal cell after another. On a good day a queen will lay 2,000 eggs.

    Busy, busy bees working together to set aside enough honey to feed themselves during the winter.

    The poet Dick Paetzke once called honey “the soul of a field of flowers”

    Mountain honey looks and tastes a little different than honey made by bees pollinating Cache Valley alfalfa. Both are incredibly delicious.
    Aristotle got it right: “Honey is the nectar of the gods.”

    This is Mary Heers and I am Wild About Utah.

    Credits:
    Photos: Courtesy & Copyright © Mary Heers
    Text: Mary Heers

    Sources & Additional Reading

    https://thehoneybeeconservancy.org/

    Burlew, Rusty, Honeybee Suite, https://honeybeesuite.com/

    Honeybee, National Geographic Kids, https://www.nationalgeographic.com/animals/invertebrates/h/honeybee/

    About The Honeybee, American Beekeeping Federation, https://www.abfnet.org/page/PollinatorFacts

    Utah Beekeepers Association, https://www.utahbeekeepers.com/

    Moab Bee Inspired Gardens, Utah State University, https://beeinspired.usu.edu/about/

    Bee Fest 2020, Sponsored by Catalyst Magazine and Utah Museum of Natural History, Recorded Facebook Livestream: https://www.facebook.com/events/2719162278365095/?post_id=2757236484557674&view=permalink SLC Bee Fest Homepage: https://slcbeefest.com/?fbclid=IwAR3xJ4E-WMNm5hizCKiajsmu0brmG1kMKEwgS0IcWij0RwpjLYTdOu4bODs

    Proposed Beaver Holding Facility in Millville, Utah

    Beaver Holding Facility: Beaver, Castor canadensis, Courtesy FWS, Steve Hillebrand, photographer
    Beaver, Castor canadensis, Courtesy FWS, Steve Hillebrand, photographer
    Nuisance beavers, who in recent years were viewed as pests and quickly disposed of, are now in high demand.Proposed Beaver Holding Facility in Millville, Utah

    A growing number of ranchers, and federal and state agencies are asking to have beavers translocated to their lands to act as affordable ecosystem engineers to restore riparian habitats, hold water on the dry arid lands, and restore creeks to their historic condition.

    Currently the number of requests for live beavers outnumbers the amount of available animals.

    Spawn Creek Beaver Dams Courtesy & Copyright Joe Wheaton, Photographer
    Spawn Creek Beaver Dams
    Courtesy & Copyright Joe Wheaton, Photographer
    Nick Bouwes, Assistant Professor in Watershed Sciences at Utah State University said, “To assist in fulfilling this need, USU’s Department of Watershed Sciences and Department of Wildland Resources in the Quinney College of Natural Resources is working with Utah Division of Wildlife Resources (DWR) to build a beaver holding facility a few miles south of USU’s main campus.”

    The architects are drafting blueprints, consultants are analyzing the needs of beavers in captivity, and scientists are seeking funding for the project.

    According to Joseph Wheaton, Associate Professor in the Department of Watershed Sciences, “We plan to build a place where [beaver] that would typically be lethally removed, will be given a second chance by moving them to places where their engineering skills will be helpful in stream restoration and …where they won’t get into trouble.”

    Beaver Cutting Courtesty & Copyright Joe Wheaton, Photographer
    Beaver Cutting
    Courtesty & Copyright Joe Wheaton, Photographer
    Bouwes adds, “It’s…not as easy as simply catching and releasing a beaver. A lot goes on to increase their ability to survive and stay put after the release. They are social animals, so trapping a whole family unit is the best method. If a single beaver is released, they tend to take off and look for other beavers.”

    Researchers hope the facility will expand to be an educational tool where they can hold workshops, study the beavers themselves, and educate the public with tours and visiting hours.


    The project includes a design for a mobile trapping facility. This will allow the researchers to travel around the state trapping beavers that are currently in incompatible locations.

    Bouwes explains, “It’s basically a trailer with kennels to keep the beavers cool. They are…sensitive to heat. If we go off location for any length of time, being able to keep the beavers cool and [safe]…will be very useful.”

    When the trailer arrives back at the holding facility, scientists will move the beavers to kennels that have a slight slope and a divot at the end that serves as a small pond where the beavers can swim.

    Nate Norman, consultant on the project from Balance Environmental, adds, “We are not looking for this to be a new home, we just want it to be safe and comfortable for the beavers until we can get them back into the wild.”

    Researchers will quarantine the beavers for 72 hours to ensure they are free of disease and parasites, before managers move them to a new watershed.

    Once the quarantine is complete, scientists will use the Beaver Assessment Tool to determine where the beaver family would most likely succeed.

    Bouwes explains, “This [tool] looks at all the stream networks across Utah and identifies…the best place to re-introduce beaver. It evaluates the dam building capacity of a stream, and identifies places of potential conflict.”

    The success of this project is dependent on its partners: DWR provides the expertise and oversight, USU supplies the land and research facilities, and ranchers allow access to streams for placing the beavers.

    When the beaver holding facility is open, scientists and managers hope to be translocating 50-100 beavers a year.

    Those interested in learning more about beavers and stream restoration are invited to attend a workshop at USU in October.

    Look for details at restoration.usu.edu.

    This is Shauna Leavitt and I’m Wild About Utah.

    Credits:
    Photos: Courtesy & Copyright © Mark McKinstry
    Audio: Courtesy Western Soundscape Archive, University of Utah, Sound provided by Jeff Rice, licenesed under CCA-ND
    Text: Shauna Leavitt, Utah Cooperative Fish and Wildlife Research Unit, Quinney College of Natural Resources, Utah State University

    Sources & Additional Reading

    Hellstern, Ron, Leave it to Beaver, Wild About Utah, July 30, 2018, https://wildaboututah.org/leave-it-to-beaver/

    Leavitt, Shauna, Beaver–Helping Keep Water on Drying Lands, Wild About Utah, April 17, 2017, https://wildaboututah.org/the-beaver-helping-keep-water-on-drying-lands/

    Strand, Holly, Beavers: The Original Army Corps of Engineers, Wild About Utah, August 16, 2012, https://wildaboututah.org/beavers-the-original-army-corps-of-engineers/

    Beaver Monitoring App, Utah State University Extension, https://extension.usu.edu/utahwaterwatch/citizenscience/beavermonitoringapp/

    Fluvial Habitats Center/Ecogeomorphology & Topographic Analysis Laboratory, Joe Wheaton et. al. https://etal.joewheaton.org/

    Restoring Degraded Waters, One Pest at a Time, Utah State Magazine, Utah State University, December 7, 2021, https://utahstatemagazine.usu.edu/environment/restoring-degraded-waters-one-nuisance-at-a-time/

    Goldfarb, Ben, Eager: The Surprising, Secret Life of Beavers and Why They Matter, Chelsea Green Publishing, March 8, 2019, https://www.amazon.com/Eager-Surprising-Secret-Beavers-Matter/dp/1603589082/ref=asc_df_1603589082/

    Fire

    Boise Interagency Fire Center entrance sign. Courtesy of National Interagency Fire Center.
    Boise Interagency Fire Center entrance sign. Courtesy of National Interagency Fire Center.
    The haze above Cache Valley begins to dissipate after weeks of hovering low and thick like a winter inversion, even as the Goring and Hansel Point Fires rage on just west of the Wellsville Mountains that bookend the valley. Both blazes, just two of the more than ten active fires in the state, are still less than 50% contained. Farmers and ranchers in Box Elder County are now doubling as volunteer fire crews.

    To date, the National Interagency Fire Center has reported over 5.1 million acres burned in nearly 39,000 individual fires throughout the Western US and small pockets farther east. According to the agency’s website, “more than 28,000 firefighters and support personnel are [currently] working on 100 large fires that have burned 1.6 million acres.” And so goes another fire season.

    Night view of burning pine trees and power pole. Courtesy of National Interagency Fire Center.
    Night view of burning pine trees and power pole. Courtesy of National Interagency Fire Center.
    It’s a hard thing to play spectator to—these yearly displays of destruction. It’s an even harder thing to draw a silver lining around, considering the potential for loss of land, property, and sometimes even life that each new fire season brings; but that’s what I’ll try to do here. As part of a recent Utah Master Naturalist course in which I participated with USU’s Extension Office, I was reminded of the extreme import of fire here in the West.
    Ecological processes are complex and dynamic; and, here in the West, fire is a critical piece to that constantly morphing puzzle. Let’s consider a mature forest, for instance. Here in Utah, one might consist of large, shade tolerant spruce and fir groves. Free of any human intervention, these groves would occasionally succumb to wildfires which would act as cleaning crew for the collection of understory growth and dead plant material that litters the forest floor.

    Such phenomena accomplish two tasks: one, frequent fires reboot the process of ecological succession wherein grasses, shrubs, and early succession species such as aspen trees and lodgepole pines take up the yolk of repopulating the forest; this leads to the second achievement of regular, unsuppressed wildfires—forest health. A dynamic, changing forest full of actively diversifying plant species are less susceptible to pests and disease. Wildfires mean forest longevity. Moreover, frequent fires limit understory fuels and produce low-intensity burns that are less likely to completely destroy a forest.

    In the late 19th/early 20th century, though, this was a hard pill to swallow, and understandably so. Fire, as I said earlier, can be a threat to land, property, and life. Thus, we inherited a policy of fire suppression throughout the Western United States which, though it may sound fruitful, has accomplished quite the opposite of our intentions. Fire suppression allows understory ladder fuels to accumulate in quantities that, when finally ignite, produce high-intensity blazes that are consummate in both their size and scope; they burn quickly and exhaustively. This presents problems on its own, but climate change also promises to lengthen our fire season by as many as three months in some areas of the West.

    So what does that mean for those of us who make our home in the Western states? Well, first we must remind ourselves each season that fire is indeed part of the ecology of the place we call home, and with that in mind take steps to insulate ourselves from its most dangerous characteristics. This includes creating and respecting buffer zones between human settlements and forests that are particularly susceptible to wildfires. Californians know this all too well by now. Additionally, responsible behavior when playing in or travelling through the Western wildlands goes a long way to preventing wildfires. Being aware of fire bans and mediation efforts is the best way to meet Smokey’s expectations.

    I’m Josh Boling, and I’m Wild About Utah.

    Credits:
    Photos: Courtesy US National Park Service
    Audio: Freesound.org, Sound provided by Dynamicell and KingCornz, licensed under CCA-ND
    https://freesound.org/people/Dynamicell/sounds/17548/
    https://freesound.org/people/Kingcornz/sounds/342369/
    Text: Josh Boling, 2018

    Sources & Additional Reading

    Utah Fire Info Box

    Williams, Carter, Update on Fires in Utah, KSL.com, Jun 25th, 2018, https://www.ksl.com/?nid=148&sid=46349568