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Woodlice Investigation

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18 October 2001 Woodlice Investigation I am going to an investigation on woodlice. I am going to find out which artificial environment it chooses to stay in by using a choice chamber. I have researched on woodlice this is what I found: * They eat dead plant material. * They have hard shells for protection. * They live in numbers of 3 or above. * Most birds eat them as do some spiders, but they don't have many predators. * Woodlice are related to some crustaceans for example lobster and shrimp. * There are over 40 species in this country alone. * They secrete a liquid from their abdomen that tastes disgusting if they are eaten by one of its predators. I am going to get a choice chamber. In each section I am going to create a different environments; in two of the environments I will put silica gel and in the others I will put damp cotton wool. Then I will cover all the sections in muslin, this allow the woodlice to move freely and feel the moisture in the cotton ...read more.


Tables of Results I waited 1 minute before I started timing to let the woodlice settle. Experiment 1 Number of woodice in each area Time Dry Moist Dry Moist Mins Dark Light 2 1 2 0 7 3 2 1 1 6 4 0 5 0 5 5 1 6 1 2 6 0 4 0 6 7 0 6 0 4 8 1 5 0 4 9 0 4 0 6 10 0 3 1 6 Experiment 2 Number of woodice in each area Time Dry Moist Dry Moist Mins Dark Light 2 0 6 1 3 3 0 5 1 4 4 0 5 0 5 5 0 5 1 4 6 0 6 0 4 7 0 4 1 5 8 0 5 0 5 9 0 4 1 5 10 0 3 1 6 Experiment 3 Number of woodice in each area Time Dry Moist Dry Moist Mins Dark Light 2 1 7 0 2 3 0 5 1 4 4 1 6 1 2 5 0 6 1 3 6 0 6 0 4 7 0 6 0 4 ...read more.


Evaluation My results shown have proven the accuracy of my prediction. I didn't think I would get accurate enough results from just 1 test so I repeated it twice then averaged all 3 result tables so it would be as accurate as I could get it. Although the experiment was accurate there were a few things I could have done to make this a fairer experiment. I could have made sure that the woodlice were all the same species and the same size. I also used the same woodlice in all 3 experiments so in the 2nd experiment they would have got tired and by the 3rd experiment they would have been exhausted, and they would have become to know there ways about the choice chamber. Then if I had used different woodlice it would not have been a fair experiment because the new woodlice could have been a different species and I could have got a totally different set of results. I don't think you can make this a fair experiment but you can make it as fair as possible. ...read more.

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