Character displacement is an evolutionary change that has occurred due to the presence of two similar species in the same environment. When this happens, natural selection favors the divergence in the characters. The divergence takes place in the form and structure, ecology, behavior, and physiology of the organisms.
Due to the divergence in the traits, it becomes possible to distinguish the two coexisting species from each other. In the absence of a similar species, it becomes feasible for one species to expand its niche in order to absorb the resources, and the constraints of the competitive pressure imposed by the other species are also released.
Predation by one flour beetle species on another can be used as
In chapter 14 we have seen how a herbivorous stream insect controls
How was the amount of food that Gause (1934) provided
How are manipulation of host behavior by spiny-headed worms and
Predation is one of the processes by which one organism exploits another
Ecologists are now challenged to study global ecology. The apparent role
In his experiments on competition between T. confusum and T.
Discuss how mathematical theory, laboratory models, and field experiments have
Explain the roles of food and predators in producing cycles of abundance
What evidence is there that variation in atmospheric CO 2 concentration is
