Showing posts with label education. Show all posts
Showing posts with label education. Show all posts

Tuesday, December 12, 2023

Attitudes Towards Insects in Food: Bug Brownies, Bite or Blegh?

 By Alyssa Colpitts, Rebecca Holm, Jenny Neff

Scorpion lollipop
[1]

My little brother loves the idea of eating suckers with crickets inside of them, along with insects inside of candy in general. Anytime we have gone to a place that sold them, he has asked if he can get one. Every time I think about it, I shudder because I am not the biggest fan of seeing bugs, let alone eating them. But then I think about how there are some nutritional benefits to it, which leads me to wonder: are insects beneficial enough for us to actually add them into our diets? Should we try to get more people to eat them?


Cricket powder and other insect-based ingredients are starting to become more popular in Western culture as people look for alternate ways to produce protein without taking up large tracts of land or causing environmental problems. Other sources of protein farming– most significantly cattle ranching– use up a large amount of land, water, and food and produce a high amount of waste, including methane gas. Farming insects such as crickets, mealworms, and beetles utilizes vastly fewer resources to produce the same amount of protein. Bug farming is a quickly growing industry. However, many companies, such as Ynsect in France, have faced huge opposition from a population that generally loves their meat and dairy and is not ready to give it up yet. This article provides interesting insight into the benefits of insect farming and how it has been received poorly by the general public in France.


Eat Bugs? [DSC_0002]
[2]

 The most common form of bug ingredient, cricket flour, cringe-worthy as it may sound, has already made it into a variety of products, sold both online and in stores. Insects have even invaded the chip aisle! So what’s with all the bug food? Briefly put, insects can be just as valuable a food source to us as other species, if not more so. Insects make up an enormous proportion of the species on earth, making them a sustainable choice for our lifestyles in the long run. Thus, the future of food may very well look a little different. With insect products playing a larger role in our diets, meat could very well take a backseat. However far off that time may be, it is important to begin shaping the attitudes of people toward that future beginning today. After all, it will not be easy to change the public perception from creepy to tasty.

University Student Perspectives of Entomophagy: Positive Attitudes Lead to Observability and Education Opportunities” brings up a big question: how can we change the attitudes of people towards entomophagy–that is, the practice of eating insects as a staple of one’s diet? In the study, Matthew Petersen and his colleagues prove that with a bit of further education, we can accomplish this! I believe the authors intended for us to take away from the article that frequent exposure to entomophagy fosters a more accepting and positive attitude toward it. This message is an interesting one because it allows us to connect with other cultures who practice entomophagy in their daily lives.

  

brownies...yawn...boooring

[3]


The researchers tested just how true the theory “college students will eat anything” is. Through a campus survey and a course survey, nearly 100 students were asked to taste two brownies, one with cricket powder flour and one without. Students in a biology course (course level) and campus-wide (campus level)  took a survey describing their familiarity with and attitude toward entomophagy and guessed which brownie had the cricket powder. Those who were part of the campus survey also listened to a short presentation about eating insects before tasting the brownies and answering the questions. The course survey participants were presented with the brownies in an Insect Biology class but were not given an overview of entomophagy beforehand.


[4] Table from Petersen et al. (2020)

The results from these two surveys are quite surprising. For the campus survey, 69 people preferred the brownies with cricket flour while 4 people preferred the traditional brownies, whereas 29 people in the course survey preferred the cricket brownies while 19 people preferred the regular brownies. Participants in both surveys were asked to guess which brownie they thought contained crickets. In the course survey, 34 people guessed correctly while in the campus survey, only 18 people guessed correctly. At the end of the survey period, students in both sections were asked how likely they were to eat insect products in the future, and many of them said they were “extremely likely.”


[5] Figure from Petersen et al. (2020)

Additionally, students were asked how likely they were to purchase insect products based on taste, environmental concern, and nutritional value (shown as light gray, black, and dark gray in Figure 5, respectively). As the graph reveals, concern regarding the environment was the most influential contributing factor to the likelihood that students would purchase cricket powder and similar products in the future.


So, what does this mean for us? Should we run to the store in search of cricket flour? For those looking for an experimental change in tastes, sure! On the whole, though, the study reveals that, when we are confronted with insect products in our food, we can seldom differentiate them from the product with which we are already familiar. Beyond that, repeated interaction with entomophagy can lead us to a more positive outlook on the practice as a whole. As revealed in the research, students who already had prior experience with ingesting insects were more willing. Further, after learning about the sustainability of the practice, the attitude shift was by and large positive. This message is an interesting one to contrast with the initial reaction we might have had to the practice of entomophagy. Rather than being disgusted or fearful, these researchers found that students were more than receptive to at least trying the brownies, some even going so far as to say they might seek the experience out again. Not to mention, America is not the first country to indulge in insects as a food source. There are cultures and practices all over the world known for eating insects, and in many places it is not only normal, but a valuable source of nutrition.


That being said, no one is forcing you to add crickets to your cookies this holiday season. However, it is interesting to see the changing attitudes surrounding insects as a sustainable food source in the United States. While presumably not any time soon, there could very well come a time when insects serve as a predominant source of protein, becoming valuable to our health in a way we cannot comprehend yet. The best way we can prepare for that future is to start thinking about it now. The sooner we realize that our creepy crawly friends could very well become precious to our health, the sooner we will be ready for a greener future.


So, the next time you see that scary, buggy corner in the candy shop, maybe you will think twice before wrinkling your nose up. Thanks to Petersen and his colleagues, we might be one step closer to a brand new attitude towards bugs.

 

Further Reading:


Petersen, M., Olson, O., Rao, S. (2020) University Student Perspectives of Entomophagy: Positive Attitudes Lead to Observability and Education Opportunities. Journal of Insect Science. 20(5). https://academic.oup.com/jinsectscience/article/20/5/30/5937574 License: CC BY 4.0 DEED


7 countries that eat insects for food | terminix. (n.d.). Retrieved November 28, 2023, from https://www.terminix.com/blog/whats-buzzing/7-countries-where-insects-mean-a-great-meal/


Pells, R. (2023). How France became the unlikely home of the insect-farming industry. Nature. https://doi.org/10.1038/d41586-023-00290-z

 

Media Credits:


[1] "Scorpion lollipop" by ewen and donabel is licensed under CC BY 2.0.

[2] "Eat Bugs? [DSC_0002]" by trekkyandy is licensed under CC BY-SA 2.0.

[3] "brownies...yawn...boooring" by jeffreyw is licensed under CC BY 2.0.

[4] and [5] https://doi.org/10.1093/jisesa/ieaa120


Monday, November 20, 2023

Bug Quest: Saint Mary’s students share sightings of diverse insects on campus

 

[1] Left- Person using the iNaturalist app on their phone
[2] Right- Example of iNaturalist research grade observation of an eastern carpenter bee


I will always remember the moment when I first discovered that I had a computer vision model and an army of expert taxonomists in my pocket, ready to help me identify the great diversity of life around me. I was a graduate student at that time, on a visit to Arizona State University, and a friend was showing me around the ASU Bee Lab. We noticed bees visiting some pretty yellow aster flowers, which I found especially striking because I had just traveled from snow-covered Minnesota. I asked her if she knew what kind of flowers they were, and she responded by pulling out her phone and taking a photo. “Let’s see what iNaturalist says,” she told me. A minute later she had the iNaturalist app’s best guess based on the photo she had uploaded: a desert marigold (Baileya multiradiata). The example photos of that species fit the flowers that we were looking at perfectly, and I immediately fell in love with this new tool.


Years later, when I accepted a job at Saint Mary’s College and proposed a biology course on insects for non-majors called Insects and Society, I knew that I wanted my students to get a sense of the amazing diversity of insects around them. When I had taken Intro to Entomology as a graduate student, we had to create an insect collection, finding insects, killing and pinning them, and identifying the order that they belonged to using microscopes and dichotomous keys. The thing I liked about this assignment was that it pushed me to pay attention to the insects around me and seek them out in various habitats, observing their many behaviors and ecological roles. I didn’t want to require my students to kill insects, and the course didn’t have a lab where students could spend lots of time identifying them. So how could I design a course project that would give them the same sort of learning opportunity?


This fall, 30 Saint Mary’s students and I set about using iNaturalist to document insects (and other arthropods like spiders and millipedes) around campus and wherever we found them as we traveled. iNaturalist was created by researchers at UC Berkeley, primarily to help people connect with nature, and has become a large source of data for biologists. The platform accepts observations of any sort of multicellular organism, including plants, fungi, and animals. Photos of species with enough “research grade” observations are added to a huge collection of images that is used to train a model to automatically identify new images. When a student in Insects and Society uploads a photo, this model provides both a list of the most likely species and a group of organisms that the model is fairly confident about (often a larger grouping like a genus or a family). Then, the social network takes over. Experts on iNaturalist review the tentative identification and either confirm it or correct it. When enough users agree on what species is shown in the uploaded photo, it becomes a new “research grade” observation. Fortunately for me and my students, iNaturalist is known for having one of the most courteous and supportive online social networks.



[3] Left- Locations of the 189 research grade insect (or other arthropod) observations on Saint Mary’s campus, at the sustainable farm, and in the Bick Nature Area during fall semester, 2023. Each blue marker represents the approximate location of one observation uploaded to iNaturalist. Map data © 2023 Imagery © CNES / Airbus, IndianaMap Framework Data, Maxar Technologies, USDA/FPAC/GEO
[4] Top, right- Observation of a sycamore tussock moth caterpillar on a Bick Nature Area trail by Makayla Hernandez ‘24

[5] Bottom, right- chart showing the number of research-grade observations across different insect orders and non-insect arthropod groups.

Just around campus, we’ve uploaded 521 observations from 15 different insect orders. Of these, 189 observations, representing 69 different species, have been confirmed by multiple iNaturalist users as “research grade.” Although this is only a tiny sliver of the 91,000+ insect species found in North America, it is still an impressive sample. We found them in all sorts of habitats: bees on flower plantings, earwigs under tree tree bark, crickets in prairie grass, wasps patrolling lawns, water striders skimming across Lake Marion, dragonflies resting in the Bick Nature Area, butterflies at the sustainable farm, walking sticks climbing on trees, leaf-footed bugs wandering on windows, and the list goes on.


Species identified on Saint Mary’s campus in fall 2023 that were represented in “research grade” observations. Photos show the 4 of the species we most commonly documented. Credits: [6], [7], [8], [9]

Here are a few fun examples of insects we found on campus:


Clockwise starting from top left:
[10] Green lacewing on some books by Paige Fuelling ‘24
[11] Mantis on a car windshield by Molly Witkop ‘24
[12] Geometer moth on window by Ja’Leah Walker ‘23
[13] Robber fly eating another fly near Lake Marion by Rebecca Holm ‘24
[14] Monarch butterfly near sustainable farm by Annie Adams ‘24
[15] Wheel bug on a window in Spes Unica Hall by Bridget Walicki ‘24
[16] Water strider on leaf in pond near Lake Marion by Hannah Cox ‘25

This project benefited greatly from the diverse habitats maintained on and around campus. We made trips as a class to Lake Marion and the Sustainable Farm to learn about insects, and had a few optional weekend photography outings. For example, we used pitfall traps to look at arthropods on the ground at the Sustainable Farm, surveyed the Nature Area, and used a blacklight to look at nocturnal insects near the gate to the Nature Area. The blacklight attracted fewer moths and lacewings than I expected, but an impressive number of mayflies. Mayflies spend most of their lives as nymphs living in shallow water and generally spend only a few days as adults. The scientific name for that order of insects, Ephemeroptera, comes from the greek roots ephēmeros and pterón roughly translated as “only having wings for a day.” They tend to emerge from the water all at about the same time so that they can mate and lay eggs.


Photographing nocturnal insects:
[17] Left- (not in order) Amanda Massa ‘24, Amanda Miloserny ‘23, Anne Howard ‘23, Bridget Walicki ‘24, Rebecca Holm ‘24, preparing to photograph insects at night (exposure was increased here to see the people on the left as well as the light on the sheet that I draped over my car)
[18] Right- sheet with black light attracting moth and many mayflies
[19] Top/Center- Close-up of a mayfly on the instruction sheet for our safety glasses (to protect our eyes from UV)

Through this assignment, students contributed to research on insect diversity and conservation, and they learned in a hands-on way about how we humans interact with the organisms around us. For each observation, they looked up one fact about how humans might interact with that species. Two surprising things that I learned from reading the projects were: 1) that compounds in mayfly exoskeletons can be used to kill cancer cells and 2) that the Soviet Union released propaganda in the 1950s accusing the United States of intentionally spreading the invasive potato beetle to devastate crops. Students also found many facts about how insects provide us with ecosystem services by pollinating flowers, burying dung, mixing soil, controlling pest species, and more.

This project was a great opportunity for me to share my love of nature photography and of iNaturalist with my students. Although they aren’t planning to become entomologists, I hope that they still had some fun with it and gained an appreciation for the diverse six-legged creatures all around us. If you haven’t tried out iNaturalist yet, I highly recommend it!



Further Reading

To learn more about iNaturalist:
Simmons, E. (July 17, 2017) Identify anything, anywhere, instantly (well, almost) with the newest iNaturalist release. Bay Nature. Link: https://baynature.org/article/identify-anything-anywhere-instantly-well-almost-newest-inaturalist-release/

To learn more about the importance of insects:
The Nature Conservancy (Sept. 10, 2021) Insect conservation protects biodiversity.
Link: https://www.nature.org/en-us/about-us/where-we-work/united-states/ohio/stories-in-ohio/insect-conservation/

To learn more about insect diversity and abundance:
Smithsonian (2022). Numbers of Insects (Species and Individuals). BugInfo. Link: https://www.si.edu/spotlight/buginfo/bugnos.


Media credits

[1] Public domain photo by NPS Photo/M.Reed
[2] Photo by Morgan Carr-Markell. License: CC-BY-NC
[3] Screenshot of iNaturalist map. Map data © 2023 Imagery © CNES / Airbus, IndianaMap Framework Data, Maxar Technologies, USDA/FPAC/GEO
[4] Observation by Makayla Hernandez. License: CC-BY-NC
[5] Chart created by Morgan Carr-Markell
[6] Photo by Cameron Eckert. License: CC-BY-NC
[7] Photo by Wildlife in Dorset Garden. License: CC-BY-NC-SA
[8] Photo by Zachary Dankowicz. License: CC-BY-NC
[9] Photo by Paolo Mazzei. License: CC-BY-NC
[10] Photo by Paige Fuelling. License: CC-BY-NC
[11] Photo by Molly Witkop. License: CC-BY-NC
[12] Photo by Ja’Leah Walker. License: CC-BY-NC
[13] Photo by Rebecca Holm. License: CC-BY-NC
[14] Photo by Annie Adams. License: CC-BY-NC
[15] Photo by Bridget Walicki. License: CC-BY-NC
[16] Photo by Hannah Cox. License: CC-BY-NC
[17, 18, 19] Photos by Morgan Carr-Markell




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