A non-native fish species is accidentally introduced into a tropical river.It appears to be well adapted to its new river environment.However, it feeds on smaller fish and is less aggressive than native fish species, so it has difficulty competing and eventually dies out.This species' failure to become a member of the new community is due to which factor(s)?
A) Dispersal
B) Species interactions
C) Environmental conditions
D) Both species interactions and environmental conditions
E) Both species interactions and dispersal

Question

Quizplus · Accepted Answer

The non-native fish species failed to become a member of the new community due to species interactions, which includes competition with native fish species for food resources. Although the non-native species was well-adapted to the environmental conditions of the tropical river, its inability to compete with native fish species eventually led to its extinction in the new community. Dispersal, or the movement of individuals or populations from one area to another, may have initially brought the non-native fish species to the tropical river, but it was not the main factor leading to its failure. Environmental conditions likely played a role in the success of the non-native fish species at first, but its inability to compete with native fish species was the primary factor in its eventual demise. Therefore, the best choice is B, species interactions.

A Non-Native Fish Species Is Accidentally Introduced into a Tropical