Figures
Figure 1. Variation in composition and richness of insectivore diets. (a) The percent relative sequence abundance of arthropod families found in the diets of seven nocturnal aerial insectivores. The size of points indicates the percent relative sequence abundance within each species and red outline indicates arthropod families significantly associated with the diet of an individual insectivore. Asterisks indicate moth families with tympanal ears. The grey bars in (b) indicate the relative sequence abundance of insect families in the diets of all insectivores combined. Only insect families that represented > 5.0% of any insectivore diet are shown. Diet richness (c) and principal coordinate analysis (PCoA = Multidimensional scaling) of diet composition of the seven sympatric nocturnal aerial insectivores (d) are based on OTUs of arthropod prey. Compositional means are represented by points, and error bars represent standard error for each insectivore species diet. Ellipses are overlayed to indicate variation between echolocating and visual predators. ­­­
Figure 2. Diet variation between sampling years.Comparison of the relative abundances of insect families consumed by co-occurring nocturnal aerial insectivores over a two-year period. Only families represented by > 5.0% of total relative sequence abundance for an insectivore are shown.