Orbital distribution of low-albedo asteroids in different taxonomic types and dynamical groups throughout the main asteroid belt and out to the orbit of Jupiter Trojans. Solid horizontal lines span the range of the minimum and maximum semi-major axes of the asteroids. Boxes delimit the standard deviation of the distribution of semi-major axes, and orange circles mark the average value. Spectral types constituting the Cybeles, Hildas, and Jupiter Trojans are given from top to bottom in decreasing order of dominance (DeMeo & Carry 2014). Five vertical lines indicate semi-major axes of 2.502 au (3:1J resonance), 2.825 au (5:2J resonance), 3.279 au (2:1J resonance), 3.972 (3:2J resonance), and 5.2 au at Jupiter.