Design Reflections from Module 3 Data Collection

The sampling strategy used in module 3 posed some issues with regards to the data collection. The movement of the birds around the water reduced areas was very random, which made it difficult to estimate the direct abundancy from the haphazard plots. In addition to this issue, the bird interactions had to be viewed from an approximate distance of 10 meters from the actual transects. Up-close interactions with the different species would have easily frightened the birds and caused wide dispersal around the pond, causing disturbances in the data. Multiple observations throughout the day in different viewing areas will allow for the most optimal data collection under these circumstances. Additionally, a random area-based sampling technique will be applied to account for the random dispersal of the different bird species, either due to competition, or passing human interactions.  We have previously determined that both the predictor and response variables will be measured under continuous circumstances; with the number of birds being measured numerically and the water level being measured in meters from the drop off. With the substitution of a random area-based method of sampling, a categorical method of measuring the water levels from low, medium, and high seems more practical. Other interesting data collected from the module showed the abundance of birds not previously considered. These birds include the Bewick’s Wren, Spotted Towhee, Golden Crowned Sparrow, and Song Sparrow. While these birds show distinguishable features to the most common birds recorded previously, they will be considered for how they will interact with the receding water levels leading into the late summer and fall months.

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