HORTICULTURE

Detailed explanation-1: -A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether. Keystone species have low functional redundancy.

Detailed explanation-2: -In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together. Without its keystone species, ecosystems would look very different. Some ecosystems might not be able to adapt to environmental changes if their keystone species disappeared.

Detailed explanation-3: -Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community.

Detailed explanation-4: -Examples of keystone species include starfish, sea otters, wolves and elephants.

Detailed explanation-5: -Some species, such as foundation species and keystone species, play particularly important roles in determining their communities’ structure.