Oliveira, E.G. de

colony foraging trail leaf sources plant system foraging trails pattern source observation trunk trails host plants leaf-cutting fractal figure number sexden cephalote species ecology forest distribution atta colonies trail maps foraging sites trunk trail systems home range space activity wirth range 1.0 season study cherrett analysis fractal analysis leaf-cutting ants farji-brener observation day 1.2 scale colombica foraging patterns foraging sectors statistic complexity value length resource sierra dimension foraging pattern leaf harvest fractal dimension survey nest entrances result trail branchings foraging activity 0.6 0.8 adult foraging trail systems period sector vasconcelo trail length 2–3 rain forest sexdens colonies adult colonies journal foraging system atta colombica correlation harvest paracou howard