Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Construct(verb) to put together the constituent parts of (something) in their proper place and order; to build; to form; to make; as, to construct an edifice. 2  Construct(verb) to devise; to invent; to set in order; to arrange; as, to construct a theory of ethics.
Species interactions within ecological webs include four main types of two-way interactions: mutualism, commensalism, competition, and predation (which includes herbivory and parasitism).Because of the many linkages among species within a food web, changes to one species can have far-reaching effects.he keystone species concept is one of the best-known ideas in community ecology. Although it is true that many species potentially interact with one another in a food web such as depicted in Figure 1, in nature there are big players and little players. The biggest players of all are referred to as keystone species.
They can be natural such as forest or manmade, such as a planted field of crops. Elements of the environment that organisms interact with include: 1  other members of their species.  other species (both flora and fauna)