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Ecology Fair University of Minnesota Monarch Lab

Abstracts from Webster Magnet 2005

Webster Magnet
707 Holly Ave
St Paul, MN 55104

Year: 2005
Teacher(s): Geralyn Rogers, Kathleen Kelnberger

A Migrating Monarch's Life

Regina F, Seisha S, Brittni W

We examined butterflies closely to see what type of flower they would nectar from. We did this by placing a vase of pansies and a vase of marigolds in their cage and observing them. We would watch to see if their proboscis was extended into the flower to show they were feeding. We discovered that the monarchs will feed on marigolds over pansies. The monarchs fed on the marigolds 80% of the time and only fed on the marigolds 20% of the time. We did this experiment so we could help other people learn about migrating monarchs. After doing this experiment we would recommend people plant marigolds so monarchs have flowers they will nectar from.


What Does a Milkweed Bug Eat?

Tevin B, Maurice B

We placed milkweed seeds on one side of the cage and sunflower seeds on the other side of the cage. We watched the milkweed bugs for a long time to see what they would eat. We watched to see the milkweed bugs put their proboscis into the seeds when they are eating. The milkweed bugs fed on sunflower seeds three times and they fed on the sunflower seeds five times. We really would need to study a larger group of milkweed bugs for a longer period of time to see if they would prefer the milkweed seeds.


Which is Larger Male or Female?

We were wondering if male monarchs have larger wings than female monarchs. First we measured the monarchs in our classroom. We measured the wings from the top of the thorax to the tip of the wing. We recorded the meaurement and the gender of each monarch. Then we went to the other science classroom and measured their monarchs so we would have a larger sample size. We found the in our population the males were larger than the females. The average male was 5.0 cm and the average female was 4.0 cm. The average for the males was one cm larger than the females.


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