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To investigate the effect of trampling on the frequency of creeping moss - Evaluation

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Introduction

Evaluation Evaluation of method: I feel my method was very well laid out. It was detailed and concise. Possible improvements could be that the distances from each transect are spread out for better results, since there may be more creeping moss in other areas of the hill. I could have also done a continuous transect to make my results as accurate as possible. The more spread out my interrupted transect was the less accurate results I developed. The amount of times I repeated the recordings was efficient so made my experiment reliable. Evaluation of data: My data was completely valid because most of my results would start from a higher point and go down and then back up. This was due to the fact that I started from the start of the footpath where there is less trampling and therefore more creeping moss and soil depth, it gradually goes down and back up again. ...read more.

Middle

This would make the actual reading closer to neutral because I must use more ionised water so that the pH meter can take the reading. To improve this you can collect the soil at a different day. With more soil you can out in an equal amount of ionised water into the solution to take the reading and make it fair. My second ranked limitations were the weather conditions. This is because it was very cold and hard to work efficiently. You begin to rush to try and get out of the cold. I would expect this to make my results less accurate but still just as reliable. This may have made my results fluctuate a lot more then they should have. To avoid this we should have done this experiment at a different time of the year, where it is warm and there is no need to rush. With the day being sunny, you would want to stay outside to enjoy the weather conditions and enjoy the activity. ...read more.

Conclusion

The snow on the ground made my soil depth readings inaccurate it required more force to push it in and I would be reading off the measurements from the snow to the rock bed and not from the soil to the rock bed. This would make my results higher than expected. * Reliability is how many times you have repeated the experiment for better results. I had repeated it 3 times for each variable so made my results reliable. The figures I had were in a reasonably close range to each other and the mean, so my results were reasonably accurate. My conclusions are not sound because of the limitations I had to face. These limitations had a huge impact on the actual results. My results are not accurate because I had done an interrupted transect which had missed out 3/5ths of the entire distance from the footpath to the area that wasn't trampled. ?? ?? ?? ?? Anwar Sufi 12N Centre Number: 10257 Biology Coursework Evaluation Candidate Number: 1186 1 ...read more.

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    0.00 1.25 2.50 3.75 5.00 6.25 7.50 8.75 10.0 11.25 Abundance 10.3 0.67 0.33 2.00 2.67 9.33 21.3 22.7 18.7 9.67 Graph of Correlation of Abundance: This shows that as the distance from the path increases the abundance of creeping moss also increases.

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