native pollinators - Prairie Rivers of Iowa

Say No to Neonics: What They Are and Why We Should Care

by Katelyn Rinicker | Aug 5, 2024

Neonicotinoid pesticides are detrimental to not only monarch health, but all pollinator health. If you have never heard of Neonicotinoids, or Neonics for short, and aren’t sure why you should care, I urge you to keep reading.

What are Neonicotinoids?

Neonics are a type of pesticide that attacks insects on a neurological level. This means “the way they work is by permanently binding to the nerve cells of insects, overstimulating and destroying them. Exposed insects often exhibit uncontrollable shaking and twitching followed by paralysis before eventually dying” (Lindwall, 2022). These pesticides are used in a variety of ways including on agricultural land, golf courses, lawns, gardens, and even in tick and flea repellents for our pets, making Neonics the most used pesticide in the USA since its development in the 1990s (Lindwall, 2022). I know how they affect insects and I’m not sure I’d want my little furballs anywhere near it.

Why should we care?

Neonics are applied to soil around a plant’s roots or, even worse, as a coating on a plant seed (Lindwall, 2022). If it is applied as a coating to a seed, the plant absorbs it as it grows. This means that the whole plant is now toxic to any insect that tries to have lunch (Lindwall, 2022). The sweet nectar, pollen, leaves, stems, and even fruit are not safe for insects to pollinate or munch on. “In large-scale studies in the UK, agricultural applications of seed-coated neonicotinoids were found to be associated with decreased abundances of bees and butterflies” (Van Deynze et al., 2024). Even when neonics are applied at nonlethal doses, they can weaken critical functions, such as an insect’s immune system, navigation, stamina, memory, and fertility (Lindwall, 2022). So if the chemical doesn’t outright kill the insect, it prevents it from reproducing and significantly decreases its quality of life.

Neonics are also extremely harmful to pollinators. They are non-selective, which means that all insects are affected by them. “Since their introduction, neonics have made U.S. agriculture nearly 50 times more harmful to insect life” (Lindwall, 2022). “Almost 45% of the 3374 articles on neonicotinoids published to date … addressed the issue of negative interactions of neonicotinoids with bees and other pollinators” (Jactel et al., 2019). There are so many articles on the internet that address neonics and call for a change in pesticide use. During a 17 year study on butterflies and neonics, it was found that the diversity of butterflies and abundance were negatively affected and declined (Van Deynze et al., 2024). It is thought that these pesticides may have triggered the decline of butterflies in 2003, when treated soybeans became available in the Midwest (Van Deynze et al., 2024). Butterflies aren’t the only pollinator affected by this nasty pesticide. Beekeepers have reported that more than 45% of their honeybee colonies have been lost between 2020 and 2021; this is the second highest colony collapse rate on record (Lindwall, 2022). That’s not all, Iowa is the home of over 4,000 native bee species including the already endangered Rusty Patched bumblebee. This means that all pollinators are at risk due to these chemicals.

This graph from Van Deynze et al. shows the correlations between pesticide use and the decline in monarch butterfly (D. plexippus) populations throughout the years.

So maybe you don’t care about some bugs. Well, it’s affecting people too. When applied to the soil around a plant, only about 2% – 5% actually get on the target plant, with the rest becoming residue on the soil outside of the plant’s root system’s reach. This residual pesticide then gets washed away by irrigation or rain into our waterways. These are areas we let our children swim and play in. These are areas we are fishing in. These are areas we live by and see daily. A 2015 study by the U.S. Geological Survey found neonic pollution in more than half of the streams it sampled nationwide (Lindwall, 2022).

EasternTigerSwallowtailPapilioGlaucus_FB

Don’t worry, we can still do something to help!

In 96% of cases, neonics can be replaced by alternative pest control and even better, in 78% of cases, at least one non-chemical alternative method can be used (Jactel et al., 2019). You can buy organic seeds to plant or check that the seeds you are using haven’t been coated in this liquid death for our insect friends. Planting more safe gardens with plenty of blooming plants is a great way to support pollinators. Growing milkweed is not only essential to monarch survival, but will attract bees and other insects as well. Even if you are in an apartment, you can help out! Growing some beautiful native plants like Hoary Vervain (Verbena stricta) or Butterfly Milkweed (Asclepias tuberosa) in a container garden on your balcony or patio are great options if you don’t have lawn space. Making sure that you have blooming plants in Spring, Summer, and Fall is essential to pollinators survival.

Citations

Jactel H, Verheggen F, Thiéry D, Escobar-Gutiérrez AJ, Gachet E, Desneux N,  (2019, August). Alternatives to neonicotinoids. Science Direct. https://www.sciencedirect.com/science/article/pii/S0160412019302351?via%3Dihub

Lindwall, C. (2022, May). Neonicotinoids 101: The effects on humans and bees. NRCD. https://www.nrdc.org/stories/neonicotinoids-101-effects-humans-and-bees

Van Deynze B, Swinton SM, Hennessy DA, Haddad NM, Ries L (2024, June) Insecticides, more than herbicides, land use, and climate, are associated with declines in butterfly species richness and abundance in the American Midwest. PLoS ONE 19(6): e0304319. https://doi.org/10.1371/journal.pone.0304319

The Magic of Monarchs

by Jessica Butters | Sep 12, 2023

A male monarch on swamp milkweed.

Last weekend Prairie Rivers of Iowa hosted Monarch Magic, an activity-filled monarch butterfly tagging event, at Ada Hayden Heritage Park in Ames. During this three-hour event, at least 100 families and groups collectively tagged 146 monarch butterflies! Many who had never experienced the magic of holding and tagging a monarch butterfly got to experience this thrill for the first time, and were able to buy a tee shirt to commemorate the experience!

In case you missed the event, or just want to refresh your monarch knowledge, we discuss here why we tag monarchs during their migration south, and review some interesting monarch facts!

The magic of monarch tagging

There are few things that feel as special as holding a monarch butterfly and setting it free with a tag! The “tags”, in this sense, are small stickers. Tagging only occurs in late summer, during the monarch migration to Mexico. To tag a monarch, you gently hold a monarch’s wings together and place a tag on one of the monarch’s hind wings. Next, you place their feet on your hand or on a flower, and release their wings, watching them take off on their way to Mexico! Each tag has a unique sequence, allowing us to identify individual monarchs. People tagging monarchs report the tag sequence they used for each monarch, along with the date and location they tagged the monarch. This information then gets reported to a database. Anyone who sees a tagged monarch can report the sequence on its tag to the database, and can learn where the monarch was originally tagged!

The magic of releasing a tagged monarch!

What does tagging tell us?

Scientists and community members tag and report monarchs to track their migration. The tags and their database are provided and managed by Monarch Watch, a nonprofit research program based at the University of Kansas. Since 1992, Monarch Watch has tracked monarch migration to understand the timing of their migration, their migration routes, mortality rates during migration, the pace of migration, and more! Tagged monarchs that make it to Mexico are recaptured in tagging programs based in Mexico, and are reported to Monarch Watch. Understanding details such as timing of migration and which states and counties are along the migration route can help us determine the most effective ways to support monarch butterflies.

Tagging a monarch butterfly!

A monarch butterfly visiting blazing star.

Are monarchs endangered?

Monarchs are not currently considered endangered by the US federal government. They are, however, a “candidate species”, meaning that the government has determined that federal protection for monarch butterflies is warranted. Unfortunately, other species in the US are struggling even more than monarchs, and therefore take priority for the time being. The government will review the status of monarchs annually until they are able to create a proposal to officially list monarch butterflies as a species needing government protection. Until then, participating in monarch tagging events, reporting tagged monarch sightings, and planting native, pesticide-free gardens are the best ways to help monarch butterfly populations!

Monarch Facts!

While their populations are threatened, monarchs are truly incredible insects! For us, seeing migrating monarchs and tagging a few is a magical experience. However, migration is an arduous journey for monarch butterflies, which lends them some interesting traits!

The species name for the monarch butterfly is Danaus plexippus.
There are two main populations of monarchs – an eastern and a western.
Eastern monarchs call Iowa and other states east of the Rocky Mountains home. This population makes the miraculous trip to Mexico!
A single monarch can fly up to 3,000 miles from Canada to Mexico.
The peak monarch migration time in Iowa is September 3rd to September 15th.
A monarch butterfly is about the same weight as a paper clip!
The monarchs that migrate to Mexico can live up to eight months!
Monarchs overwinter in very specific habitat: the oyamel fir forests on Mexico’s mountaintops.
Oyamel fir forests provide cool temperatures and constant moisture to help monarchs survive the winter.
The oyamel fir forests are becoming scarce due to habitat loss from logging and farming.
Monarchs roost in trees for protection from wind, rain, and snow.
Monarch caterpillars can only eat milkweed, but adult monarchs will sip nectar from almost any flower!

Monarchs roosting in a tree!

Pale coneflower at Ada Hayden Heritage Park

Pale coneflower provides nectar for monarchs.

How can you help monarchs at home?

There are a few easy steps you can take to help monarchs all year round, and a few flower species that are especially good for helping monarchs on their journey to Mexico in September!

Plant milkweed and provide native flowers for nectar year-round:
- Spring: Hoary vervain (Verbena stricta), pale coneflower (Echinacea angustifolia)
- Summer: blazing star (many Liatris species)
- Fall: goldenrod (many Solidago species), sunflowers (Helianthus species), and asters (Silphium species).

Be sure to plant late-blooming plants to help migrating monarchs fuel up on their way to Mexico!
- - Some of their favorite fall plants are:
    - Compass plant (Silphium laciniatum)
    - Goldenrods (Solidago species)
    - Sawtooth sunflower (Helianthus grosseserratus)
    - False boneset (Brickellia eupatorioides).
  - Planting these fall flowers will also help our other native pollinators, especially bumble bees!

The magic of seeing the bright orange monarch soar in the blue September sky, the magic of holding and tagging a monarch to help understand them, and the joy they bring to all of us, is truly inspirational. Have a truly Magical Monarch Migration Season!

>> Buy a Monarch Magic shirt to support more Prairie Rivers of Iowa events! https://www.bonfire.com/monarch-magic/ <<

How a Pollinator Plan can Enrich Life in Ames

by Jessica Butters | May 24, 2023

Prairie Rivers of Iowa, Ames Public Works, and the Pollinator Task Force with Mayor Haila proclaiming Pollinator Week and the Ames Pollinator-Friendly Community Plan.

June is National Pollinator Month!

We are *buzzing* with exciting news! Mayor John Haila recently proclaimed National Pollinator Week in Ames, starting on Monday, June 19. Additionally, Haila announced a plan to make Ames a more pollinator-friendly city! To our knowledge, Ames is the first city in the United States to create its own 10-year plan, tailor-made for Ames residents and Iowa-native pollinators. Prairie Rivers of Iowa partnered with the City of Ames Public Works Department to organize a Pollinator Task Force, comprised of Ames residents, who came together to write the City of Ames Pollinator-Friendly Community Plan. Prairie Rivers and the City of Ames are now calling on even more residents to get involved in implementing this 10-year plan. You may be asking: ‘Why proclaim a national pollinator week, and why should we have a plan concerning pollinators for Ames?’. Because supporting pollinators is supporting the Ames community!

Do you like apple pie topped with ice cream? Thank pollinators!

Supporting Pollinators = Supporting Our Food

A pollinator is any animal (insect, bird, mammal) that moves pollen between flowers (the Ames Pollinator Plan focuses on supporting native bees, butterflies, moths, and other insects). The pollen exchange facilitated by pollinators allows plants to be fertilized and consequently grow fruits and seed. The fruits and seed produced with the help of pollinators is infinitely important! About one-third of our global food supply depends upon pollinators. If you like almonds, apples, tomatoes, or even steak and butter, you have pollinators to thank. Wait, steak and butter? Yes indeed. Pollinators are very important in producing seed for growing alfalfa, a hay crop fed to beef and dairy cattle. Without hay in livestock rations, it would be harder to access all things cattle, from ice cream to beef tacos. Lastly, almost 90% of flowering plants depend on pollinators! If you like seeing wildflowers on hikes or along roadsides, then you should want to keep pollinators around. Imagine if we lost nearly all of our flowering species? Our landscapes would be quite boring and colorless, and our plates would look more empty.

Supporting Pollinators = Supporting Ames’ Natural Resources

Yes, pollinators are very important for food crops at the national and global scale. But what are some benefits that we will be able to see locally, here in Ames? We’ll list two: 1) our water quality and 2) our soil health could be improved by planting pollinator habitat. One of the best ways to support pollinators is by planting native vegetation, or plants that have evolved and are originally from Iowa. Pollinators eat the nectar and pollen of these plants, and some also create nests in their stems. Many native plants are perennial, and because of this have expansive, thick root systems. Planting a patch of native plants is similar to casting a thick, wide net underground. This net of roots holds soil in place on slopes, soaks up extra water during heavy rain, and absorbs excess chemicals such as fertilizers and pesticides as water moves through. These actions provided through native vegetation will lower erosion, mitigate flooding, and keep our local waterways cleaner if planted in the right areas.

Pollinator habitat also supports water quality!

Planting for pollinators is also planting for people.

Additionally, because these plants are well-adapted to Iowa, they need fewer inputs such as pesticides and thrive without fertilizer. This creates a low-input, sustainable planting system. Lastly, creating a good pollinator habitat will create a good human habitat (see graphic on page 4 of link). Bear with me here. Being surrouned by greenery and wildlife such as butterflies reduces stress and stimulates curiosity and creativity. Strategically planting more diverse vegetation and flowering plants may increase the observations of birds, butterflies, and other wildlife, which could have a positive impact on the mental health of Ames residents. This plan will support the pollinator community to address food insecurity, ecological health, offset the impacts of climate change, and will serve as an example for other cities around the world. Supporting pollinators truly supports the Ames community and beyond!

So What’s in this Plan?

The vision of the Pollinator Plan is for the City of Ames “to become a leader in developing and sustaining pollinator habitat that will enrich the quality of life for the human and biological communities of Ames“. Besides creating habitat that benefits pollinators and people, this plan also contains four pathways to bring this vision to life: 1) public education about pollinators and other important wildlife in Ames, 2) policy enhancements to support habitat implementation in the city, 3) research current and future conditions for pollinators and residents, and 4) the creation/strengthening of partnerships to use all resources to the fullest potential. Through education, policy, research, and partnerships, our plan will leverage the excitement and interest in pollinators to reach a beautiful vision of Ames: a more engaging, sustainable, beautiful, and healthy place that will not only serve pollinators, but the people and visitors of Ames.

You can read the plan in its entirety on the City of Ames’ Bird and Pollinator Friendly Community webpage!

Do you live in the Ames area? Are you excited to be a part of this vision for Ames? If so, click the blue button to fill out our volunteer form! You can also contact Katelyn Rinicker at krinicker@prrcd.org or call 515-232-0048 to let us know you are interested in volunteering!

Pollinator Team Volunteer Form

How to Plant a Prairie Strip: One Landowner’s Journey

by Jessica Butters | Dec 29, 2022

Just a few weeks ago, the hope of tomorrow was seeded in the middle of an empty field.

I turned my dusty Ford Ranger off a quiet two-lane highway in Marshall County into a dead grass waterway, soon to be planted with native prairie seed. I pulled up next to Chuck’s vehicle.

“Well, today’s the day, isn’t it,” he said, smiling despite the icy November wind. We were finally putting seed in the ground.

A Rough Start

It can take more effort than you think to plant a prairie in a grass waterway. Firstly, Chuck Stewart, of Ankeny, doesn’t live in Marshall County; he rents his field to a farmer, who plants traditional crops like corn and soybean. Secondly, the grass waterway was planted with smooth brome (a tough European grass), making it difficult to plant anything else in it. Lastly, the previous landowner had created the grass waterway without using any government programs. This last fact made it difficult to qualify for USDA programs to help fund the cost of planting a prairie strip in the waterway. Many NRCS and FSA (Farm Service Agency) programs stipulate the ground must be currently in production to receive funding. Landowners who don’t qualify for NRCS and FSA programs, like Chuck, can have a difficult time finding programs to fund prairie projects on their land.

“The reason I started this prairie project was to establish a site that will draw not only pollinators but all kinds of wildlife,” said Chuck. In order to do this, he needed expertise from environmental-based organizations, such as Prairie Rivers of Iowa.

Finding a Way

Although he could not receive funding from traditional USDA programs, Chuck did, however, have a few things going for him. He initially had David Stein, a former watershed coordinator at Prairie Rivers, conduct a site visit and create a restoration plan.

“Prairie strips [are] one of the best ways farmers can get into conservation practices and habitat building,” David Stein said when asked about this project, “You’re taking unproductive land out of intensive use and replacing it with a small area that provides amazing benefits for the farm and surrounding environment.” For Chuck, some of those benefits include a reduction in runoff and erosion, increased water infiltration, and of course the perennial beauty of native prairie, pollinators, and other wildlife.

Additionally, Chuck was able to secure a 50% cost share from the Prairie Partners Program to reduce the expense of native seed. Chuck also had a neighbor, Henry, who had some prairie-planting experience and owned a native seed box for his tractor. Having a willing, experienced neighbor to help plant and manage the future prairie made this project much more cost-effective than hiring someone out of town.

Lastly, Chuck and I met with Dan Allen, the owner of Allendan Seed Company, to see the operation that supplied his native prairie seed. After viewing giant warehouses of seed, expansive fields of prairie plants, and a large greenhouse, we discussed how to help the prairie outcompete the smooth brome currently in the grass waterway. Knowing it may take a few years to truly defeat it, we decided to mow the smooth brome and hit it with two rounds of glyphosate, at about a month apart, before planting the prairie seed in the fall. We also added another seed mix in addition to the one cost shared with the Prairie Partners Program. While this was an out-of-pocket expense, planting higher than the minimum of 40 seeds per acre, as well as increasing plant species richness, will hopefully provide faster and stronger establishment, giving the prairie a greater chance at success in the long run.

Seeds of Hope

As Chuck stepped down from the tractor at the end of planting, it was hard to imagine that the dull-gray strip of land would one day be full of color and life.

“We did it!” He said with a grin, “I hope the neighboring farms will see the results and consider planting prairie themselves.” It is our hope that more farmers will see the value of turning silent areas into vibrant habitat, with bird calls, bees, and dancing flowers breaking the monotony of row crops.

If you are interested in implementing prairie on your property, and are unsure of where to start, contact Jessica Butters, Pollinator Conservation Specialist, at Prairie Rivers of Iowa, HERE.

Many Thanks:

“In summary, I want to thank Prairie Rivers of Iowa staff David Stein and Jessica Butters. David developed a detailed plan outlining the process, and Jessica prepared an outline for the timing of each step, from preparing the seedbed to the ongoing steps of maintaining the prairie.” – Chuck Stewart

We would also like to thank Henry Rolston, Allendan Seed Company, Jon Judson, and Ty Mason.

Which Insects are “Home for Christmas”?

by Jessica Butters | Nov 22, 2022

Insects are conspicuous by their absence during Iowa’s winter months. Absent are the beauty of butterflies, and we would be shocked to hear a bee buzzing around our snowy apartment balcony on Christmas Eve. So where did they all go? Did they perish from freezing temperatures? Have they all migrated south with the eastern monarch butterflies?

Here in Iowa, we have many insects that use truly astonishing techniques to stay here throughout the winter, braving the cold with the rest of us. From smart hiding places and suspended animation to making their own antifreeze, Iowa’s insects have developed some pretty wild adaptations to weather the winter!

Note: Iowa has many insects that undergo “suspended animation”, technically called diapause, to survive winter. Diapause is an insect form of hibernation where the insect pauses development; it stops maturing and halts all activity. It remains in its’ current life stage (which could be egg, larva, nymph, pupa, or adult) until conditions become favorable again and they can continue growing or start mating/laying eggs.

Wooly bear caterpillars: These fuzzy little guys will mature to become the Isabella tiger moth. They stare winter down by allowing themselves to freeze, but on their own terms! They seek shelter under logs and leaf layers. Once safe, they go into diapause and slow down the freezing process by creating glycerol, a natural alcohol and one of the many insect forms of “antifreeze”. They slowly allow their entire bodies to freeze except the insides of their cells.

Black swallowtail butterflies: These beauties stay cozy in their chrysalis while the snowflakes fall, entering diapause at the pupal stage. Their chrysalis mimics a dead leaf to keep them safe from predators, so be careful when cleaning up your lawn – especially if you grew dill, parsley, or other plants related to carrots in your garden! If you must move leaves, try not to chop/mow them to ensure you can enjoy the swallowtails next summer!

Dragonflies: Dragonflies brave the winter in a few different ways depending on the species. Some overwinter as eggs laid in logs near ponds, and others actually migrate. But one of the coolest ways some overwinter is as underwater nymphs (an immature stage of a dragonfly)! The dragonfly nymphs stay underwater beneath insulating ice layers, where they are voracious predators true to their namesake (even eating small fish!). They eat and grow throughout the winter until they can emerge as adults in the summer.

Flower flies: Also known as syrphid flies or hover flies, flower flies are a family of flies (called “Syrphidae”) that are fantastic garden helpers: when young they eat aphids, and as adults they pollinate. Here in Iowa, they’re commonly referred to as “sweat bees” due to their black and yellow stripes and the fact that they sometimes land on sweaty humans (sweat contains good nutrients for them). However, these flies only mimic bees, and cannot sting or bite (their mouth basically consists of a tiny mop). They survive the cold much like other insects; they find shelter in leaf layers and other plant material, enter diapause and overwinter as a larva, pupa, or adult depending on the species. Flower flies are no pansies!

Bumble bee queens: Bumble bee hives only live for one year, unlike honey bees. Near the end of the hive’s life, new queens and male bees (“drones”) hatch and leave the hive to mate. When hive activity finally ends, the drones die while the newly-mated queens search for a warm winter home alone. Their new homes could be in leaf layers, warm compost piles, or just a few inches underground in a sheltered place! While winter winds howl, the entire fate of next year’s bumble bee hives rests on these young queens surviving the winter all alone. When it warms again, if all goes well, they will wake from diapause and emerge to start their very own hives to begin the cycle again.

How Can You Help?

As you can see from these few examples, surviving winter is key to us enjoying pollinators and other insects next year. So many insects rely on the shelter of leaves, logs, and other materials to block the cold wind and insulate them from freezing temperatures. Therefore, one of the best ways to help pollinators this winter, and to ensure there are pollinators this summer, is to find a place in your yard or balcony where you can let leaf litter and plant material accumulate. Think of it as a Cozy Corner that may harbor young bumble bee queens, sleeping swallowtails, and fuzzy wooly bear caterpillars. Give insects the gift of cozy this holiday season!

See below for more information on how to build your very own Cozy Corner:

Create a “Cozy Corner”
You can create a “cozy corner”, or brush pile, for pollinators throughout the fall and winter by choosing a location to leave leaf litter undisturbed. You can add twigs, branches, and other brush to the pile as you clean up the other areas you want clear of brush. You can also leave potted plants on your balcony or patio and push them together to create a small shelter; I’ve found moths sheltering in my flowerpots in mid-fall, and I’ve noticed more bird visitors! Add layers of brush to your cozy corner to provide the best shelter possible. Click here to read the full article from which this paragraph was based on.

How-To Guides to Create Your Very Own Cozy Corner:

Bird Brush piles: The Audubon Society’s Website

General Wildlife Brush pile: Article by the Wisconsin DNR