Which of the following is expected to occur if a keystone species is removed fram an ecosystem?
a. A niche is eliminated
b.Competition is reduced
c. Other speciesmove toward stable populations
d. The ecosystem collapses
To determine which of the options is the expected outcome if a keystone species is removed from an ecosystem, we can consider the role of keystone species in an ecosystem.
A keystone species is a species that has a disproportionately large impact on its ecosystem relative to its abundance. Its removal can cause significant changes in the ecosystem. Let's examine each option to see which one aligns with the impact of removing a keystone species:
Option a: A niche is eliminated - This option is a possibility because a keystone species often occupies a unique ecological niche and plays a critical role in maintaining the balance of the ecosystem. Removing it may result in the elimination of that specific niche.
Option b: Competition is reduced - This option is unlikely because a keystone species typically helps regulate competition within an ecosystem. Its removal could lead to an increase in competition among other species instead of a reduction.
Option c: Other species move toward stable populations - This option is possible. If a keystone species is removed, it can disrupt the population dynamics of other species that rely on it for resources or interactions. This disruption may cause instability initially, but over time, the remaining species may adjust and move toward stable populations.
Option d: The ecosystem collapses - This option is also possible. A keystone species often plays a crucial role in maintaining the structure and functioning of the ecosystem. Removing it without effective compensation or adaptation from other species may lead to a cascading effect, ultimately resulting in the collapse of the ecosystem.
Considering the role and impact of keystone species, the most accurate answer would be option d: The ecosystem collapses. However, it is important to note that the outcome may vary depending on the specific ecosystem and the interactions between species within it.