They can have a profound influence on the balance of organisms in a particular ecosystem.Introduction or removal of this predator, or changes in its population density, can have drastic cascading effects on the equilibrium of many other populations in the ecosystem. B. prey on the community s dominant species ʹ. Keystone predators may increase the biodiversity of communities by preventing a single species from becoming dominant. Keystone species fall into broad categories: Predator. 1. D. … a. competitively exclude other predators. Keystone species, in ecology, a species that has a disproportionately large effect on the communities in which it occurs. Answer: B Which of the following could qualify as a top-down control on a grassland community? C) allow immigration of other predators. Keystone predators can maintain species diversity in a community if they. e. prey only on the least abundant species in the community . A. competitively exclude other predators. Sea otters are keystone predators that help to maintain high diversity levels by eating sea urchins. E. none of the above 14 Keystone predators can maintain species diversity in a community if they: Select only ONE answer choice. C. allow immigration of other predators. Keystone predators can maintain species diversity in a community if they A) competitively exclude other predators. D) reduce the number of disruptions in the community. C. allow immigration of other predators. c. allow immigration of other predators. Keystone predators can maintain species diversity in a community if they _____. E) prey only on the least abundant species in the community. c. prey only on the least abundant species in the community. A.competitively exclude other predators B.allow immigration of other predators C.prey on the community's dominant species D.prey only on the least abundant species in the community B) prey on the community's dominant species. effect of grazing intensity by bison on plant species diversity. Keystone predators can maintain species diversity in a community if they _____. Examples include lions. A.competitively exclude other predators B.allow immigration of other predators C.prey on the community's dominant species D.prey only on the least abundant species in the community stable conditions with no disturbance. Keystone predators can maintain species diversity in a community if they ANSWER: Correct Chapter 54 Question 6 Part A Food chains are sometimes short because ANSWER: moderate levels of disturbance. A. competitively exclude other predators. small and … Such species help to maintain local biodiversity within a community either by controlling populations of other species that would otherwise dominate the community or by providing critical resources for a wide range of species. By keeping the populations and range of their prey in check, keystone predators, impact other predators as well as other animal and plant species further down the food chain. E. none of the above 14 Keystone predators can maintain species diversity in a community if they: Select only ONE answer choice. Keystone predators can maintain species diversity in a community if they. D. … 2. d. reduce the number of disruptions in the community. b. prey on the community's dominant species. B. prey on the community s dominant species ʹ. Keystone predators can maintain species diversity in a community if they _____. Remove a keystone predator, and the population of creatures it once hunted can explode, pushing out other organisms and reducing species diversity. d. prey on the community's dominant species prey on the community's dominant species. intensive disturbance by humans. large and close to a mainland. a. competitively exclude other predators. b. allow immigration of other predators. human intervention to eliminate disturbance. frequent massive disturbance.

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