What is a keystone species?

2

Answers


  1. 0 Votes

    A keystone species is a species that has a disproportionate effect on its environment relative to its abundance. Such species affect many other organisms in an ecosystem and help to determine the types and numbers of various others species in a community.

    Such an organism plays a role in its ecosystem that is analogous to the role of a keystone in an arch. While the keystone feels the least pressure of any of the stones in an arch, the arch still collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measures of biomass or productivity. It has become a very popular concept in conservation biology.

    A keystone species is a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected based on its relative abundance or total biomass.

  2. 0 Votes

    A keystone species is a species that has a disproportionate effect on its environment relative to its abundance[1]. Such species affect many other organisms in an ecosystem and help to determine the types and numbers of various others species in a community. It’s a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected based on its relative abundance or total biomass. It gets its keystone name as an allusion to the keystone of an arch. For example, some sea stars may perform this function by preying on sea urchins, mussels, and other shellfish that have no other natural predators.

Please signup or login to answer this question.

Sorry,At this time user registration is disabled. We will open registration soon!