Arrows indicate pathways of food sources, with red arrows designating major pathways.
Several source or consumers boxes enclosed within a larger box indicates similarities in type of organic matter consumed. Asterisks in the primary consumer boxes indicate this is a consumer group from which secondary consumers acquire food. Arrows passing from one box to a specific group within a larger box indicates a direct linkage between those specific groups. Numbers in boxes are means for d 13 C and d 15 N, respectively. Arrows indicate pathways of food sources, with heavier arrows designating major pathways.