Results of a principal components analysis on duration and frequency contour measures comparing Monk Parakeet contact calls from six Connecticut nesting colonies (Fairfield, Stratford, Milford Audubon, Milford Meadowside, Milford Buckingham, and West Haven). The factor loading for each call measure is reported for each component. All variables with loadings less than 50% (meaning less than 25% of the variance is accounted for by that variable) for a particular principal component are indicated with a dash. Only the first three principal components had at least one variable with a factor loading of at least 50%.
Results of a principal components analysis on duration and frequency contour measures comparing Monk Parakeet contact calls from six Connecticut nesting colonies (Fairfield, Stratford, Milford Audubon, Milford Meadowside, Milford Buckingham, and West Haven). The factor loading for each call measure is reported for each component. All variables with loadings less than 50% (meaning less than 25% of the variance is accounted for by that variable) for a particular principal component are indicated with a dash. Only the first three principal components had at least one variable with a factor loading of at least 50%.
