Sow Bugs and Their Preference of Hickory Leaves

Pages: 5 (837 words) Published: December 2, 2014


Sow Bugs Prefer Hickory Leaves Over All Other Leaves Tested in This Experiment

Haley Wall
10-20-13
Period E

Abstract
The purpose of the Sow bug lab was to determine if the Sow bugs had a preference of leaves to eat. A brief description of the procedure is that the leaves were put in a Petri dish full of sand and sow bugs. Then there were recordings of how much of each leaf the Sow bugs had eaten each day. Observations on what the Sow bugs had eaten, and how they were acting were recorded everyday. The Sow bugs preferred the Hickory leaf above all leaves involved in this experiment. Introduction

Some background information on Sow bugs is that Sow bugs feed on decomposing organic material. Such as: mulch and grass clippings. The Sow bugs enjoy tender foliage, stems, along with roots of young garden vegetable transplants, seedlings, and bedding plants. A Sow bug’s diet also includes fungi, algae, moss, and bark. The hypothesis is: Sow bugs prefer the Hickory leaf. The prediction is: If Sow bugs prefer the Hickory leaves, then there will be a higher percent consumed value for the Hickory leaves when compared to the percent consumed values for the other three leaves. The reason for the hypothesis is that the Hickory seemed like it fits the Sow bugs diet better than the other three leaves involved in this experiment. Procedure

The materials list is: sand, four Sow bugs, Hickory leaf, American Beech leaf, Red Oak leaf, Maple leaf, large Petri dish, four different colored sharpies, white out, scissors, eight by eight millimeter graph paper, and a water dropper. 1. Cut the Hickory, American Beech, Red Oak, and Maple leaves each into an eight by eight millimeter square using the graph box. 2. Put white out in the top right corner of each leaf.

3. Put a different color dot in each white out dot using the sharpies. 4. Fill the Petri dish with six millimeters of sand.
5. Put forty drops of water in the sand.
6. Place the leaves in the Petri dish.
7. Place the four Sow bugs in the Petri dish.
8. Cover the Petri dish.

Data
Group data table:
Amount of Leaves the Sow Bugs Eat

Leaf Sample Type and Color

Date
Hickory (black)
American Beech (green)
Red Oak (brown)
Maple (orange)
Observations
10-8-13
0%
0%
0%
0%
Very active, no part of the leaves are eaten
10-9-13
14.69%
0%
0%
0%
The only leaf eaten is the Hickory leaf, the Sow bugs are still very active 10-10-13
27.66%
0%
0%
0%
The Hickory leaf is still the only leaf eaten
10-15-13
100%
16.25%
0%
3.13%
Once the Sow bugs finished the Hickory leaf the turned to the American Beech leaf, then to the Maple leaf

Class data table:
The Effect of Different Types of Leaves on The Percent of Leaf Consumed Type of Leaf
Percent of Leaf Consumed
Group
1
2
3
4
5
6
Average
Maple
12.5
25%
44.5%
3.13%
60.59%
84.38%
38.33%
American Beech
100
32.81%
8%
16.25%
2.66%
39.84%
33.26%
Hickory
32.8
100%
24.7%
100%
44.84%
46.09%
58.07%
Red Oak
.63
2.66%
1.25%
0%
0%
2.34%
1.15%

Conclusion
The hypothesis was: Sow bugs prefer the Hickory leaf. The prediction was: If Sow bugs prefer the Hickory leaves, then there will be a higher percent consumed value for the Hickory leaves when compared to the percent consumed values for the other three leaves. This hypothesis is correct. This hypothesis is correct because in the group data it had the highest percent consumed. Which is being 100 percent eaten. While, the runner up is the American Beech leaf with only 16.25 percent consumed with is less than a quarter of what has been eaten of the Hickory leaf. This is also true for the class data in which the leaf was 58.07 percent consumed while the next leaf below it being the Maple leaf only has 38.33 percent consumed, which entails that the Hickory leaf’s percent consumed leads by a whopping 19.74 percent. Therefore, the hypothesis and...
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