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.