On 18th April around 4:27 PM in St. Vital Park. The weather was partly cloudy with 1° C, with wind of 13 km/hr. I planned to observe the trees in the fitness trail area using stratified random sampling in which there were two sub areas one on the left another one on the right.
The internal environment is uniform yet different from one another in terms of the length of tress. I chose stratified random sampling because if I would have chosen simple random sampling then could be a probability of missing samples from different strata.
To be honest I felt like it was pretty straight forward implementing this sampling method because it was covering the trees on both the areas and was giving equal chance for me to collect data from each side and compare results. I was really surprised to notice that the part of the tree that was facing north side had higher amount of lichens as compared to the side facing southwards, implying that sunlight do play a role in growth of lichens. Another thing that I notice was that the bigger the tree the higher chance of lichens to be present. For small trees, the size of the lichen was really small and was scattered all over the place whereas for the trees that were big and giant lichens were at the bottom going all the way to the top in a straight line. I will continue collecting data using the same sampling method since it is giving me efficient data.