⇒ A species that plays a vital role in defining an entire ecosystem. Without its keystone species, the ecosystem would either no longer exist or would change significantly. This means that if the species were to disappear from the ecosystem, no other species would be able to fill its ecological niche.
• With the introduction of salmon nutrients into forests and the movement of plant seeds via their faeces, grizzly bears contribute to the preservation of healthy ecosystems. Bear watching and bear hunting are significant for the recreational and sectors in british columbia besides they are an essential part of first nations culture. (peek, et al., 2003)
• The structure of terrestrial and marine ecosystems is significantly influenced by Killer Whales-being top predators and their ability to recycle nutrients. They assist in preventing certain animal species from overpopulating the ocean. It has been demonstrated that whale fecal matter generally promotes the growth of phytoplankton that absorb carbon from the atmosphere, resulting in a more hygienic and healthier habitat for all animals. Encourage Acts of communalism by letting barnacles ride on them. (Brown,2014)
• Beavers known as Ecosystem Engineers, the way they produce wetland habitats (a home to variety of species) in their environments by constructing dams, they shape an entire ecosystem by thinning out older trees and allowing young saplings to grow. Insects can find food and shelter in the wood that they introduce into the water. Salmon and other species eat those insects. Thus, they have an impact on biodiversity too.