Polar Bears: Keystone Species In A Changing Arctic Ecosystem
Within the Arctic ecosystem, polar bears reign as keystone species, connecting trophic levels from microscopic phytoplankton to apex predators. The food web’s intricate tapestry reveals the interdependence of species, with polar bears relying on a steady supply of prey supported by healthy phytoplankton and zooplankton populations. Climate change poses challenges to this delicate balance, reducing…