Abstract For sympatric species, niche differentiation may manifest through resource selection or spatiotemporal partitioning of shared resources. Traits including body size, physiology, and morphology influence the tactics that predators, such as baleen whales, use to meet their energetic needs. Blue, fin, and humpback whales require rich prey patches, like the extensive swarms the zooplankton krill form, to offset the energetic burden incurred by their large body sizes.
