Rebugging our Community

Rebugging our Community

Insect populations have dropped drastically over the last few decades. Bugs are the building blocks of our environment and provide many benefits such as beautiful flowers, food sources, soil aeration, and more. We can help these little creatures flourish by rebugging our community. I could spout science facts all day long about how insect populations have dwindled, you have likely already noticed.

When I was younger, we would visit my grandparents who lived 2 hours away. We would have to stop at least once to clean our windshield. Now I can drive over 6 hours to visit my parents and never have to clean my windshield. Or maybe, you have noticed that there aren’t as many Monarch butterflies as you used to see. We used to take walks and have a hard time not stepping on grasshoppers and we used to see fireflies every night. Now there seems to be a fraction of insects around as there used to be. According to Hallmann et al, insect biomass has declined by 74% – 83%. Many insects are beneficial and are not considered pests. They decompose plants, animals, and fecal matter. They aerate our soil, provide a food source for other animals, and pollinate our plants.

Why are they declining?

This is a tricky question as their decline is not caused by just one thing. They are dying a death by a thousand cuts. Habitat fragmentation and degradation, pollution, pesticide use (especially Neonictonoids), loss of native plants, light pollution, climate change, and many other reasons. Some species of insects need specific food sources or plants to lay their eggs on. Iowa has lost over 99% of its native landscapes, meaning it has become increasingly difficult for insects to find their host plants and habitats.

Insect Decline in the Anthropocene: Death by a Thousand cuts by Wagner et al assesses the metadata surrounding insect decline.

What can we do to help? 

While this decline is very alarming, we can all help “rebug” our world.

If you have a minute:

  • Don’t kill the bugs that have found their way into your home; instead, relocate them outside. If you don’t want to touch them, you can safely handle them with a piece of paper and a cup.
  • Reduce pesticide use, or better yet, stop using it altogether – pesticides harm all insects, not just the small percentage that are considered pests
    • Or use alternative methods such as putting food in containers so it is not available to insects
    • Or put soapy water, cinnamon, lemon juice, or mint around the holes that they seem to be coming in at
    • If you MUST kill them, use boiling water or cornstarch instead of chemicals
    • Be untidy in your garden! Insects use weeds, old plant stems, wood, and leaves
    • Reduce outdoor lighting – you can do this by incorporating motion sensors. Insects and a variety of other animals use the stars as navigation. Constant outdoor lighting disrupts and confuses their natural systems. 
    • Keep lawn grass longer – this provides shelter and a food source

If you have more time:

  • Plant native gardens – this provides food sources and habitat, it also helps to connect habitats as insects can only travel so far before needing a break and a snack
  • You can do this in containers, your yard, window boxes, or anywhere there is a little bit of space!
    • Plant host plants – such as milkweed for monarch butterflies
    • Grow your own produce – the flowers are great sources of nutrients for insects
    • Compost – an open compost pile provides warmth, habitat, and food for invertebrates
      • You can also use compost systems to build up soil health!

If you have a lot of time:

  • Advocate for policies that promote re-wilding the state. This helps protect and create more natural areas. Write to your local, state, and federal governments to explain the importance of policies protecting insects and wildlife.
  • Talk to your boss and landlords about creating native gardens
  • Join community groups that support insects! 

“The loss of even a small percent of insects might also be disproportionately consequential. They sit at the base of the food web; if they go down, so will many birds, bats, spiders, and other predators.”

Ed Young 

Autumn’s Spooky Species: How to Appreciate Misunderstood Wildlife this Season

Autumn’s Spooky Species: How to Appreciate Misunderstood Wildlife this Season

These Halloween icons are in reality quite charming, and provide us with valuable services! 

The crisp October air brings the excitement of changing leaves and a changing season. While making yards and gardens cozy for wildlife braving the winter is a common discussion this time of year, we are focusing on what kinds of important wildlife you may notice this month! With Halloween around the corner, now is the perfect time to better understand some of the spooky (or maybe not-so-spooky-after-all) animals that you may see in autumn!

Owls

Soon leaves will fall to the ground, making it easier to spot this inquisitive bird of prey. The barred owl in particular hoots in a pattern that sounds like they’re asking “Who cooks for you? Who cooks for you all?”. I think we all wish the answer to that question was “someone else”. While this call at night may sound spooky, barred owls have some endearing qualities. This species mates for life, and lets its young stay near home longer than other species – up to six months! You can look for barred owls in Ames in mature tree stands near a water source. To help all owls, try to stop putting out rodent poison; owls eat rodents, and can consequently become sick from the poison. Healthy owls in your area may mean natural rodent control for you! Additionally, some owls utilize nesting boxes; you can contact Wild Birds Unlimited here in Ames to learn more!

Barred Owl
Little Brown Bat

Bats

Could we truly celebrate Halloween properly this month without bats? From décor to Dracula, this fuzzy animal’s image will be seen everywhere this month. However, the animals themselves will be seen less and less. Bats remaining in Iowa during winter are now looking for cozy spots for hibernation, especially as the amount of insects declines this month. Bats are great at gobbling down mosquitos and other pesky insects (the bat pictured here can eat 600 insects in an hour!), and their babies are called “pups”! These animals are much more helpful and cute than they are spooky. 

To help bats, consider building a bat box for fun! If a bat gets in your home, remember that they will not fly into you; they are expert navigators and will avoid you while they try to fly up and away. Calmly open a door or window for it to fly back outside and stand still at a distance until it leaves. If it can’t find the exit, call the Iowa Wildlife Center (515-233-1379) or other wildlife societies to have experts remove the bat in a humane way.

Spiders

Many people try their best to be open-minded towards insects, but most find spiders hard to appreciate (spiders are not technically “insects” – they’re “arachnids”). During late summer and early fall, you may see spiders more often, but don’t panic. They are not “coming in” to escape cool temperatures. Most spiders you see indoors are specifically adapted to survive indoors, where there is little food and water. Outdoor spiders are not well-adapted to live inside our homes, and are not trying to sneak in; their food is outside, and that’s where they’ll stay! If they accidentally wander in, they will not survive more than a few days, and won’t reproduce. What you are probably seeing are indoor spiders that have been inside this whole time, not bothering you at all. 

Beautiful Spider Web

But why are you seeing indoor spiders more often than usual? Because they are in love! This time of year is the mating season for many spiders, and instead of stealthy squatters, you’re seeing love-sick troubadours! Besides embarking on their quest to find love, spiders are also fantastic household helpers, eating any insects they may find along their way. I tend to leave spiders alone if they are along baseboards and in corners. If one particularly bothers me, I use a paper and cup to catch it and place it outside.

This time of year is beautiful in Iowa, and it’s the perfect time to find ways to appreciate the beauty of living things that continue to serve our needs, despite our fear of them. Happy Fall!

 

Household Tip: To truly understand any animal/insect you see in or around your house, look up information from science-based sources, such as university extension websites, rather than pest-control companies. Pest-control websites are likely to present alarming information, possibly to encourage use of their services. A majority of the time, whatever you are seeing is not only common, but harmless as well.

 

Links in Text:

Leave The Leaves! Xerces Society blogpost, by Justin Wheeler:

https://xerces.org/blog/leave-the-leaves

 

Wild Birds Unlimited, Ames (515-956-3145) Website:

https://ames.wbu.com/?utm_source=google&utm_medium=local&utm_campaign=localmaps&utm_content=279

 

Woodworking for Wildlife, Iowa State University, link to PDF file on how to build a bat box:

https://naturalresources.extension.iastate.edu/wildlife/woodworking-wildlife