Monarch Caterpillar, Under Watch By Young Eyes Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgIn the northeast region of Utah nestled between the Wellsville Mountains and the Bear River Range, Cache Valley and the surrounding landscapes begin to show the first signs of spring. Wildflowers emerge on the hillsides, birds return to the valley floor and various native plants produce and deliver the timely first round of regional food sources to host our diverse pollinator populations. I am eager this year to see if we will get to experience the return of the beloved monarch butterfly, an iconic long-distance migrator that has made a noticeable presence in our valley for generations. Unfortunately, with numbers critically low for the third consecutive year, their return to Utah’s summer breeding grounds remains uncertain.
Monarch on Sunflower Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgScientists have been tracking the population of western monarchs by conducting overwinter counts of individuals clustered in the California coastal regions. During the annual 2020 Thanksgiving Count, experts reported a dismal low of only 1,914 individuals. Counts from the two previous years hovered around 30,000 individuals, the threshold that was predicted to result in a crash of the western migration. With less than 1% of the historical population remaining (which use to report in the hundreds of thousands to over a million), this has become a troubling trend. The primary reasons for the decline in the population have been attributed to loss of historical habitat, increase in pesticide use and both direct/indirect impacts of climate change.
Monarch with Habitat In Progress Sign Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgNow more than ever sanctuary habitats containing milkweed and native nectar sources play a vital role in the ultimate success of the monarch migration. Many people have chosen to contribute to this conservation movement through the establishment of Waystations. Monarch Waystations offer the promise of protected habitats with the establishment of adequate seasonal resources dispersed between overwintering sites and summer breeding grounds. The idea is the more Waystations created, the better connectivity between habitats, the more robust the migratory pathway. The added benefit of additional resource sanctuaries for critical pollinator populations which ultimately determine the success of our agricultural industry is noteworthy.
Monarch Waystation Sign Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgWaystations can be integrated into a variety of existing landscapes, including home gardens, business establishments, government buildings, local parks and schools. In the state of Utah, there are 59 registered Monarch Waystations. I host Waystation 26876 through Monarch Watch, #44 in the state. 5 specific criteria are needed to certify a Waystation (through monarchwatch.org): 1) A designated space, minimum of 100 square feet; 2) Native milkweeds (to serve as host plants); 3) A variety of seasonal nectar sources (natives preferred); 4) A water source and: 5) Shelter. The commitment to avoid the use of pesticides is also critical for success.
Milkweed Seed Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgLocal movements and backyard organizations have become monumental in the collection and distribution of regional milkweeds and native nectar plants. If you are looking to start a Waystation of your own, that would be a good place to start. With the monarch’s recent designation as a candidate species under the Endangered Species Act, and their listing put on hold (as “warranted but precluded” due to lack of funding), we are in a race against time to save the migration. My backyard will continue to provide a reliable source of habitat plants for as much of Utah and it can support. As I package up another round of Showy milkweed seeds (Asclepias speciosa) destined for a Utah classroom, I remain hopeful. Our next generation of environmental stewards, under the careful guidance of passionate enthusiasts, is paving the way as they witness the plight of the monarch unfold before their very eyes.
This is Jenny Dowd with Western Monarch Pollinator Pathways, and I’m wild about Utah
The Wild About Utah archives are managed by the Bridgerland Audubon Society: https://wildaboututah.org
For Information On Registering a Monarch Waystation:
To meet the criteria required for certifying a garden as an official Monarch Waystation, please visit Monarch Watch: https://monarchwatch.org/waystations.
Monarch Caterpillar Feeding on Milkweed Courtesy & Copyright 2020, Jennifer Burghardt Dowd, Photographer https://raeenvironmentalinc.orgSchools can contact RAE Environmental Inc. to find out how to participate in their Utah School Monarch Waystation Program (https://raeenvironmentalinc.org)
Support through Funding
For western monarchs in particular, the population is very near collapse, with projected numbers this winter around 6,000 individuals (down from 30,000 the last two years, and 1.2 million in the 1990s—a population loss of 99.5%). Efforts to restore critical early spring habitat for western monarchs leaving overwintering sites are focused in the foothills and Central Valley of northern California, and this emergency action needs support through funding. Organizations committed to taking immediate action include the Monarch Joint Venture and the National Fish and Wildlife Foundation.
Support through Political Will
Before the pandemic hit this year, a House bill was introduced to provide support for western monarch conservation. The Monarch Action, Recovery, and Conservation of Habitat Act (or the MONARCH Act) of 2020 would establish a Rescue Fund through the USDA that would provide grant support to states implementing the conservation strategies of the Western Monarch Conservation Plan of 2019. Momentum on passing this bill stalled as focus on COVID became priority, but lawmakers must be reminded that these actions are still critical to the existence of our beloved western monarch butterflies.
My hope is that we see monarch declines as a wake-up call to act collaboratively, that our collective misunderstanding of all insects and their valuable roles in our lives can be remedied through curiosity, outreach and conversation, and that we find ourselves delighting in the chance to share our reverence of these creatures with all generations, young and old.
My name is Amanda Barth, the rare insect conservation coordinator for Utah’s Department of Natural Resources, and I am Wild About Utah!
Monarch Butterfly Conservation in Utah, https://sites.google.com/utah.gov/monarchconservationinutah/
Utah Pollinator Pursuit is a cooperative project between Utah Department of Natural Resources, Wild Utah Project, and Utah State University
It was a spectacular scene that no living person has ever witnessed. John James Audubon said the sun would literally be blocked out for hours as the river of living creatures flew by from sunrise to sunset. Estimates place their population up to five billion. That’s FIVE BILLION. They represented 40% of all the living Class of Aves in North America and may have been the most abundant bird species in the entire world. They reached speeds over 60 miles per hour, and when flocks came to rest in forests their collective landings could topple large trees. They seemed invincible.
But in the 1870’s, European-Americans used shotguns which dropped dozens of Passenger Pigeons with each shot. They commercialized them as cheap food, sold their feathers to adorn hats, and cut down nesting-area forests.
As the birds began to disappear, measures were made to prevent their total loss. Several groups were captured and put in captivity, but breeding was unsuccessful. In 1901 the last wild “invincible” pigeon was shot. In 1914, the very last Passenger Pigeon died at the Cincinnati Zoo. They are gone. Five Billion then, zero now.
Monarch Butterflies, Courtesy and Copyright Becky Yeager, Photographer
We may be currently experiencing something of that depressing magnitude as we continue to record a consistent decline in the populations of once plentiful Monarch Butterflies. Adults may recall capturing the yellow-black-white striped larva from milkweeds in fields and along roadsides throughout Cache Valley. They would keep them in jars until the larva had its miraculous morphing, then release the dazzling orange and black flying flowers that everyone seemed to love. Unless humans take positive actions now, many newborn children may never have that butterfly-in-a-jar experience.
Tagged Monarch Butterfly, Courtesy and Copyright Becky Yeager, Photographer
I started tagging and releasing Western Monarchs at South Cache back in 1995. A harmless tag was placed on the front wing in hopes of tracking it to its overwintering site. We did hundreds at first, but each year larva was more difficult to find. Nibley’s Becky Yeager reigns as the Monarch tagging Queen, and she works tirelessly to preserve the species.
In December, six of us decided to investigate the Monarch sites in California listed by the Xerces Society. We went to each site from Santa Barbara along the coast up to Santa Cruz. We should have seen a quarter million Monarchs, but barely observed two thousand total.
Monarch Butterfly, Tagged and Ready-to-go, Courtesy and Copyright Becky Yeager, Photographer
In 1997, California had 100 counting sites and observed well over one million Monarchs.
In 2016 they increased counting sites to 250, but the population has dropped to less than 300,000. If five billion pigeons can disappear, what are the odds of success for Monarchs?
Milkweed Host for Monarch Butterflies Courtesy and Copyright Becky Yeager, Photographer
We can do something about this. Plant milkweed, the only plant where they lay eggs. Use fertile, native plants in your flower gardens. Stop spraying pesticides. Let the Cache Valley Wildlife Association tag whatever Monarchs you might collect this summer. And join us at the Logan Gardeners’ Market for a Mariposa Festival on May 20.
Monarch Butterfly Chrysalis, Courtesy and Copyright Becky Yeager, Photographer
Credits:
Images: Courtesy &
Copyright Becky Yeager, Photographer
Text: Ron Hellstern, Cache Valley Wildlife Association
For Information On Tagging:
The Monarch Program: http://www.monarchprogram.org
To tag butterflies found in Cache Valley, please contact Monarch Program volunteer Ron Hellstern at 435-245-9186. Please note that captive caterpillars or chrysalises are easiest to tag, as capturing adults can harm their wings.
Pyle, Robert Michael. 1981. National Audubon Society: Field Guide to Butterflies, North America. Alfred A. Knopf: New York.
Monarch Watch: Monarch Life Cycle. http://monarchwatch.org/biology/cycle1.htm
Katydid Courtesy Stokes Nature Center Scott Biggs, Photographer
Monarch Butterfly Courtesy Utah Division of Wildlife Resources J. Kirk Gardner, Photographer Licensed Under CCL 3.0
Tiger Swallowtail Butterfly Courtesy Utah Division of Wildlife Resources J. Kirk Gardner, Photographer Licensed Under CCL 3.0
Insects are the most diverse class of organisms on earth, with more than 900 thousand known species. With that many different kinds of bugs, it’s no wonder that they take on such a vast array of shapes, sizes, and colors. From Luna moths to fruit flies to millipedes, the diversity of this class of life is immense. Some insects have developed a shape and coloring so deliberate that it’s almost astounding. These insects are mimics – bred to look like something they aren’t, in an attempt to get a leg up on the survival game.
Insects can mimic all kind of things – stick bugs, for example, make such convincing twigs that you’ll never know they’re around until they move. Katydids look just like bright green leaves, and there are some species of caterpillar that in their youngest stages look just like splatters of bird droppings. But the mimics that I find most interesting are those who mimic other insects.
There are two main types of insect-to-insect mimicry. Batesian mimicry occurs when one harmless species mimics another dangerous one. Species that look like something fierce can capitalize on that insect’s dangerous reputation and potentially be safer from predators because of it. A common Utah pest, the peach tree borer, is a moth that very closely resembles a wasp in both its morphology and behavior. Harmless, nectar-eating hoverflies exhibit the black and yellow body stripes of a bee. Apparently, it’s not just humans who want to stay away from the business end of a wasp or a bee – many insect predators, too, give them a wide berth.
Ants also have a fierce reputation in the animal world, and so attract a lot of mimics. A number of spider species not only mimic ants in morphology and behavior, but some also give off ant pheromones, making them smell like friend rather than foe. While many ant-mimicking spiders go undercover as a way to hide from their own predators, some do use their disguise as a way to access the nest of their prey.
Batesian mimicry is a delicate balance. Predators need to catch a wasp or two before they associate that color pattern with dangerous prey. If there are too many tasty mimics around, the predators will stop associating black and yellow stripes with a dangerous object and the mimic’s ploy would fail to work.
A slight variation on Batesian mimicry are insects with false faces and false eyes. Tiger swallowtails – those large yellow and black butterflies – have red and blue spots on each of their hind wings at a place farthest from their body. These spots, combined with the skinny black ‘tails’ from which the species gets its common name, are meant to look like the eyes and antennae of another, possibly larger and more fierce, insect. This imagery is meant to frighten off predators, but also in the case of an attack, to spare the most important part of the butterfly’s body.
The second, less common, form of insect-to-insect mimicry is called Müllerian mimicry. This occurs when two equally distasteful insects come to resemble one another. Most of us are familiar with the monarch butterfly. As caterpillars, they feed exclusively on toxic milkweed. The caterpillars take the toxins into their bodies and retain them as adults, making them not only bad-tasting but also poisonous. Predators have learned to associate that distinct orange and black wing pattern with a bad experience, and therefore leave them alone. Viceroy butterflies look incredibly similar to monarchs – the only difference being an extra line of black on the hindwings of a viceroy. While once thought to be Batesian mimics, recent studies have shown that viceroys are equally unpalatable. Their similarity in looks to monarchs, then, serves to reinforce the distasteful nature of both species.
Mimicry is of course, not restricted to the insect kingdom. Some plants have gotten into the mimicry business in order to trick insects. The hammer orchid, which grows in Australia, has a flower that mimics a female bee. Male bees, in mistakenly trying to mate with the flower, collect pollen that they then carry with them to the next, ensuring pollination of this sneaky plant. So this ingenious tactic some insects use to gain a leg up in the game of survival can also be used against them to the advantage of others. Isn’t life amazing…
For more information and photos of some insect mimics, visit our website at www.wildaboututah.org. For the Stokes Nature Center and Wild About Utah, this is Andrea Liberatore.
Many thanks to Don Viers for his input on this piece.
Credits:
Photos: Courtesy and copyright as marked
Text: Andrea Liberatore, Stokes Nature Center
Additional Reading:
Imes, Rick (1997) Incredible Bugs: The Ultimate Guide to the World of Insects. Barnes & Noble Books. New York, NY
Pyle, Robert Michael (1981) National Audubon Society: Field Guide to Butterflies, North America. Alfred A. Knopf. New York, NY
Viers, Don (2013) Personal conversations
Ritland, David B., Brower, Lincoln P. (1991) The Viceroy butterfly is not a Batesian mimic. Nature, vol. 350, 497-8. Available online at: http://www.nature.com/nature/journal/v350/n6318/abs/350497a0.html
Cushing, Paula E. (2012) Spider-ant associations: An Updated Review of Myrmecomorphy, Myrmecophily, and Myrmecophagy in Spiders. Psyche, vol. 2012. Available online at: http://www.hindawi.com/journals/psyche/2012/151989/
