Data Collection – Matthew Bajus

On May 9th, I collected my field data for woodpecker cavities in coniferous white spruce trees and deciduous bur oak trees. I was able to collect 20 replicates for each species of tree along two belt transects. My sampling design worked extremely well as the trees were evenly spaced and so each sample unit only contained one tree. My original hypothesis stated “woodpeckers hold a preference for oak trees over pine trees”, but after closer inspection my test site included spruce trees rather than pine trees. I will be altering my hypothesis accordingly. Otherwise, my data relatively supports my hypothesis, with most cavities being found in oak trees. However, there was ancillary patterns that I noticed in that one spruce tree had the largest amount of deep woodpecker cavities. These cavities were likely used for living rather than foraging, and thus they may prefer different trees for different roles. Reflecting on my hypothesis, perhaps I need to clarify what role the species of tree holds for preference.

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