Category: Invertebrates

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Hi there, I’m a monster

Yellow Garden Spider Argiope aurantia Courtesy US FWS, Willliam Powell, Photographer
Yellow Garden Spider
Argiope aurantia
Courtesy US FWS, Willliam Powell, Photographer

Daring Jumping Spider Phidippus audaxdaring Courtesy US FWS, Laurie Sheppard, Photographer Daring Jumping Spider
Phidippus audaxdaring
Courtesy US FWS, Laurie Sheppard, Photographer

I have a new spider roommate that I’ve decided to let stay. This is a bit of a development for me, though, since I’ve never been too keen on spiders, primarily because they’re spiders. They’re those strange land-lobsters that fall from the shower curtains, or appear behind a shelf; those horrid hairy hands that hole up in the bathroom sink to greet you in the groggy morning. “Hi there! I’m a monster!” they yell with delight. “Gahh! You sure are!” I yell back without it.

When I was growing up, I dealt with spiders according to the ‘all are bad’ fallacy. I was a spider killer I’m ashamed to say. I’d grab a wad of toilet paper, or a shoe, and send their bodies to the sewer or dump. As I grew older and learned more about them, however, I switched camps. I learned that they are just wee wolves who wait. They are not malicious or evil, even if some still take a deep breath to see. I then graduated to spider rehabilitator, and it’s where I am still rooted. I have a specific mason jar and slip of cardboard that I’ll catch the spider in, and then send them to the Oregon grapes beside my house. I find rehabilitation easier to cope with than believing that they are still all bad. I never liked killing. Once released, I know that they are actually happier back in their native habitat where they have an abundance of food and opportunity for spider hunting and other activities which behoove them. Maybe they’ll even get to eat or be eaten by an old flame.

But back to my new roommate. Our story begins a few weeks ago: I was brushing my teeth for the evening when I spotted them near the floor in the corner where my bathroom sink meets the wall. They were suspended in a wee web just living their life. About a quarter the size of a raisin, this little one was no threat I figured: they weren’t large enough to be seen as a scare, and, upon brief inspection, weren’t venomous. I decided to pass on an immediate capture and do it the next day or something. In their corner they stayed.

The next evening as I was again brushing my teeth, I was reminded that I would catch them as I saw them again. But today, this itsy spider was not alone: they had caught a hornet in their web and was gleefully doing with it that which spiders do. It surprised me though, that this small hunter in their own right was able to catch and turn a hornet at least ten times its size into leftovers. “Huh,” I thought, “Perhaps I’ll let you stay.” I like hornets less than spiders, and the enemy of my enemy is my friend.

Since then, the bitsy spider in my bathroom has caught even more, and is really doing me a favor. They have snared another hornet, several flies, mosquitos, and other unidentified organisms which I only recognize as tiny Tutankhamuns. My spider roommate has helped me straddle my rehabilitation camp with a new one: teamwork.

Now, while I still do catch other spiders and critters which find their way into my house, I’m allowing the roommate to stay, at least for now. I know there will be a day when my fiancé finally notices them and asks for them to go, but that day is not yet. Until then, I’ll continue to marvel at how my roommate, this eight-legged ecology major, takes on challenges that to us would seem plain mad. If you saw a hornet the size of a Kodiak brown bear, would you even contemplate catching it let alone eating it? That takes some gumption to not back down. I can admire that. So for now, we’ll keep working together, at least until hornet season is over. Then it’ll likely be to the Oregon grapes with you to find that old flame.

I’m Patrick Kelly, and I’m Wild About Utah.
 
Credits:
Images: Courtesy US FWS, images.fws.gov
Audio: Courtesy & ©
Text:    Patrick Kelly, Director of Education, Stokes Nature Center, https://www.logannature.org
Included Links: Patrick Kelly & Lyle Bingham, Webmaster, WildAboutUtah.org

Additional Reading

Wild About Utah, Posts by Patrick Kelly

Stokes Nature Center in Logan Canyon, https://www.logannature.org/

Spiders North America (Spider Identification), InsectIdentification.org, https://www.insectidentification.org/spiders.php

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The Great Salt Lake: Important 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.

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:

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

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

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Nature Came to Me

Glovers Silk Moth Courtesy & © Shannon Rhodes, Photographer
Glovers Silk Moth
Courtesy & © Shannon Rhodes, Photographer

Glovers Silk Moth Courtesy & © Shannon Rhodes, Photographer Glovers Silk Moth
Courtesy & © Shannon Rhodes, Photographer

This week I couldn’t make time to get out into nature, so nature came to me. I suppose people think that once students stack chairs and say goodbye as they carry their yearbooks, portfolios, and report cards out the door, their teacher lounges all summer in a hammock with a just-for-fun book and a lemonade. Perhaps a few teachers do. This teacher was scurrying off to afternoon meetings about math tutoring and curriculum planning after spending mornings discussing hundreds of scholarly journal pages she’d read the night before about effective writing instruction. No, I wouldn’t make time this week for nature, so nature came to me, begging me to slow down, take notice, pause, breathe.

First, it was a bird with a yellow head perched just outside my bedroom window as I hit the alarm. I didn’t take the time to get the details or even listen to its song as I rushed off to the car. Was it a warbler or a meadowlark? I’m not sharp enough on my bird identifying yet to instantly know, and there was no time anyway. Not even to take a picture.

Rushing from my office to the adjacent building for class, I did stop to stare at the largest moth I’d ever seen that was perched on the similarly-colored rusty-brown brick. This time I pulled out my phone to get some shots, certain that the iNaturalist app would reveal how uncommon it is to see a moth bigger than the size of my fist leisurely greeting me on the summer camp-bustling university campus. Patiently it sat as I zoomed in closer to get all the angles of its head, wooly abdomen, and wing patterns. 7:58–time to go find my seat.

Later, my iNaturalist app provided a suggestion: Glover’s Silk Moth, a rather common find this time of year in my part of the world. Then, as I sat on a dining patio overlooking the river telling my friends about the moth, a garter snake skirted the rock wall just feet away from me until it found a comfortable spot to watch and listen.

Suddenly, I realized that nature was hosting a BioBlitz for me if I wanted to join in. A BioBlitz, according to the partnership of National Geographic and iNaturalist, is “a celebration of biodiversity….focused on finding and identifying as many species as possible in a specific area over a short period of time.” Children’s book author Loree Griffin Burns cleverly guides her young readers in similarly throwing a Moth Ball.

Last June I learned that my tangerine-colored moth find in Logan Canyon was a Nuttall’s Sheep Moth, and that I could join citizen scientists all over in pinning observations on the map and logging wild encounters like this new-to-me species, especially during National Moth Week. It was William Wordsworth who wisely wrote, “Come forth into the light of things, Let Nature be your teacher.” This week she was trying to teach me to be more aware, that my day’s list could allow time to appreciate a yellow bird, a curious snake, and a marvelous giant silk moth, and suddenly I was also spotting ladybug larva and ring-necked pheasants. I had time. As Richard Louv states in his book titled Last Child in the Woods, “Nature does not steal time; it amplifies it.”

For Wild About Utah, I’m Shannon Rhodes.

Credits:
Images: Courtesy & Copyright Shannon Rhodes, Photographer
Additional Audio: Courtesy & © Kevin Colver https://wildstore.wildsanctuary.com/collections/special-collections
Text: Shannon Rhodes, Edith Bowen Laboratory School, Utah State University https://edithbowen.usu.edu/
Additional Reading Links: Shannon Rhodes

Additional Reading:

Burns, Loree Griffin. You’re Invited to a Moth Ball: A Nighttime Insect Celebration. 2020. https://loreeburns.com/

Greene, Jack. Join a BioBlitz This Year. Wild About Utah, May 30, 2016. https://wildaboututah.org/bioblitz/

Insect Identification.org. Glover’s Silkmoth. January 3, 2022. https://www.insectidentification.org/insect-description.php?identification=Glovers-Silkmoth

Louv, Richard. Last Child in the Woods: Saving Our Children from Nature-Deficit Disorder. 2008. https://richardlouv.com/books/last-child

National Geographic. BioBlitz. https://www.nationalgeographic.org/projects/bioblitz/

National Moth Week, Friends of the East Brunswick Environmental Commission, https://nationalmothweek.org/

Rhodes, Shannon. Malacomosa Dance. Wild About Utah, June 21, 2021. https://wildaboututah.org/malacomosa-dance/

University of Wisconsin Milwaukee Field Station. Giant Silk Moths. November 26, 2014. https://uwm.edu/field-station/giant-silk-moths-family-saturnidae/

Winter, William D. Jr. Basic Techniques for Observing and Studying Moths & Butterflies. The Lepidopterists’ Society. 2000. https://www.lepsoc.org/sites/all/themes/nevia/lepsoc/Memoir_5_Basic_techniques_manual.pdf

Wordsworth, William. The Tables Turned. 1798. https://www.poetryfoundation.org/poems/45557/the-tables-turned

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The Quiet Importance of Brine Flies

The Quiet Importance of Brine Flies: Antelope Island in the Great Salt Lake, Courtesy Pixabay, wnk1029, contributor and photographer
Antelope Island in the Great Salt Lake,
Courtesy Pixabay, wnk1029, contributor and photographer
It was early afternoon in mid-July 2019 and my first time setting foot on Antelope Island. As a newcomer to Utah, I was itching to explore the local sights and had come to learn about the impressive annual shorebird migration from my friend, a bird enthusiast and fellow graduate student. Brimming with excitement, and a little put off by the smell of Great Salt Lake mud wafting through the open windows, we parked the car in the Antelope Island Marina parking lot and jumped out onto the shore of the famed isle. Thousands of birds dotted the water around the harbor, and the ubiquitous Antelope Island spiders blanketed the bushes with innumerable webs. But it wasn’t the birds stretching as far as the eye could see out on the waters of Great Salt Lake, or the impressive number of spiders skittering past our car tires that left a lasting impression on me.

As we stepped out onto the beach to get a closer look at the birds bobbing on the salt water and to set up the birder’s favorite tool, a spotting scope, the dark grey sand under our feet sprang to life with a gentle buzz. The sand, or what I thought was sand, was actually a shoal of brine flies, easily numbering in the millions. Surprised by our discovery and shorebirds completely forgotten for the moment, we walked slowly along the shore, and with each step, a cloud of flies jumped up to avoid our footfalls, gently settling back down behind us as we walked on.

Brine flies, which are small flies in the genus Ephydra, are a common occurrence around the lake. These gentle flies do not bite, and as adults, they don’t even have mouth parts to feed with. Much like mayflies, they only live a few days as adults, with the goal of reproducing and laying their eggs back in the waters of Great Salt Lake to start a new generation of flies.

Similar to an aquatic caterpillar, their larval stage lives in the briny waters of Great Salt Lake, feeding mostly on algae and other organic matter. At their peak population around Great Salt Lake each year, brine flies are estimated to number in the billions, and the skins they shed as they emerge from the water as adults pile up on the shore in incomprehensible numbers.

As such an abundant insect around the lake, they provide critical food for all manner of creatures. Our momentarily forgotten shorebirds are avid predators of brine flies, and, hungry from migration, these birds snap up brine flies by the thousands. Phalaropes, stilts and sandpipers are just a few of the bird species that feast on brine flies. Gulls love to feast on brine flies, and in silly gull fashion, go about chasing them up and down the beaches with open beaks and loud wails. Remarkably, for eared grebes, brine flies can make up 40 percent of their diet, while the remainder usually consists of another Great Salt Lake denizen, the brine shrimp.

Birds aren’t the only ones that rely on brine flies for food. Spiders, like the ones keeping us company in the Antelope Island bushes, as well as beetles and other invertebrates, feast on brine flies too. In fact, as scientists say, brine flies are an important part of our Great Salt Lake ecosystem. Walking slowly along the shore with my eyes pointed down toward the great clouds of brine flies at my feet, it was easy to see how their sheer numbers could feed an army of critters.

As someone who spends most of my time thinking about birds that eat fish and how to study them, I’m not one to trouble myself with thoughts about insects often, but thinking back on that remarkable July afternoon and the struggling health of our Great Salt Lake, I can’t help worry a little for the future of our gentle brine flies.

I’m Aimee Van Tatenhove, and I’m wild about Utah.

Credits:
Images: Courtesy Pixabay, Antelope Island in the Great Salt Lake, wnk1029, contributor and photographer, https://pixabay.com/photos/antelope-island-great-salt-lake-lake-2659982/
Sound: Courtesy & Copyright Aimee Van Tatenhove
Text: Aimee Van Tatenhove, USU Department of Biology, Utah State University
Additional Reading: Lyle Bingham, Bridgerland Audubon Society

Additional Reading

Pieces by Aimee Van Tatenhove on Wild About Utah

Brine Flies, Great Salt Lake Ecosystem Program, Utah Division of Wildlife Resources, State of Utah, September 01 2021, https://wildlife.utah.gov/gslep/wildlife/brine-flies.html

McPherson, Mia, Great Salt Lake Brine Flies – Important Food Source For California Gulls, OnTheWingPhotography.com, July 14th, 2018, https://www.onthewingphotography.com/wings/2018/07/14/great-salt-lake-brine-flies-important-food-source-for-california-gulls/

Van Elegem, Bernard, Great Salt Lake, Lord of the Flies – Part I, brine flies and bird abundance, June 16, 2015, https://www.bernardvanelegem.com/news/great-salt-lake-lord-flies-part-i-brine-flies-and-bird-abundance

Van Elegem, Bernard, Great Salt Lake, Lord of the Flies – Part II, Cicindela hemorrhagica, June 17, 2015, https://www.bernardvanelegem.com/news/great-salt-lake-lord-flies-part-ii-cicindela-hemorrhagica

Brine Flies scatter as you walk through, Great Salt Lake State Park & Marina, State Parks, Utah Department of Natural Resources, State of Utah, June 11, 2020, https://www.facebook.com/watch/?v=3137388862978108

Great Salt Lake Brine Flies, Antelope Island State Park, State Parks, Utah Department of Natural Resources, State of Utah, https://youtu.be/pktAdULIdZk
Brine flies abound around Great Salt Lake in the summer. As far as insects go, these are some of the “good guys”