White Sharks (Carcharodon carcharias) and Orcas (Orcinus orca) both occupy a position as apex predators in their ocean habitat. When sharks move out of an area to avoid orcas, that impacts the prey the both hunt - here, Northern Elephant Seals (Mirounga angustirostris). The presence or absence of apex predators also impacts the foraging strategies, which are different for male and female Elephant Seals. Where males forage near the sea floor along the continental shelf, relying on species like Silvergray Rockfish (Sebastes brevispinis) and Pacific Hake (Merluccius productus), females forage in the open ocean, relying on species like Humboldt Squid (Dosidicus gigas). Small, bioluminescent Blue Lanternfish (Tarletonbeania crenularis) are prey for many species, including both squid and seals, as they migrate vertically in the water column.
From my series of California Ecosystem illustrations feature threatened, endangered, or endemic species that highlight some unique aspect of California's incredibly diverse habitats. Each card has a short description of the creatures and relationships printed on the back.
Cards are blank inside and locally printed on acid-free paper. They measure 6" x 6" square. Envelopes included. Can be mailed with a single USPS First Class stamp.