University of Minnesota

Ecology Fair University of Minnesota Monarch Lab

Abstracts from Riverview Specialty School 2005

Riverview Specialty School
1400 93rd Ave N
Brooklyn Park, MN 55444

Year: 2005
Teacher(s): Mary Miller, Ann Sangster

The Light Research

The light research Dan and Tucker We were wondering if the amount of light would affect the monarchs to grow faster or slower or the same. We had three boxes of the larva. One of the boxes are +2 means that those larva get two extra hours of light another at –2 witch means they get two less hours of light. Then another one that was normal they get the same amount of light. We had ten larva in each box the ones in +2 hours and-2 hours grew the fastest then the ones in normal hours grew the slowest, they all died. We gave the same amount of milkweed leaves in each box and sprayed water on the milkweed so they were fresh. We also had a timer and we set it so they would get the amount of light they needed. We learned that if you maximize or minimize light there lifespan grows faster. The question we have is why do the monarchs go onto the bark then going on the leaves?

Which Light?

Danielle D, Dylan S

By: Danielle Decker and Dylan Saline 5th grade We were researching if sunlight or artificial light makes a difference on how the Monarch Caterpillar grows, or in our case die. Before we got this question we had other questions, like does a Monarch Caterpillar eat anything besides milkweed when being kept in captivity, or do they like room temperature or refrigerated cold leaves. Both turned against us. So then we tried the sunlight or artificial light, which we really didn’t know what to think, and there we got some results. The ones being kept in the artificial light had not only grown faster but also lived longer. We had three of the same sized Monarch Caterpillars kept in the same box. After we were done, we had a conclusion and some more questions. Our conclusion was that the sunlight was too warm and that made the milkweed not as fresh, and the artificial light remained cooled and contained fresher. Our other questions were what things in the wild could cause Monarch death and how long an average life span of a Monarch. We did not get a chance to research on these questions; they will be researched by next year.

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