Under the classical principle of competitive exclusion in ecological theory, two species competing for the exact same limiting resource cannot stably coexist in a homogeneous environment; the species possessing even a marginal reproductive advantage will inevitably drive its competitor to extinction. However, natural ecosystems frequently exhibit high species richness among organisms utilizing identical resource bases. Theoretical ecologist Peter Chesson resolved this discrepancy through the formulation of the "storage effect," a mathematical framework explaining how environmental variability fosters coexistence.
According to Chesson, stable coexistence via the storage effect requires three structural conditions. First, competing species must exhibit differential responses to fluctuating environmental conditions; a year or season that creates optimal reproductive conditions for one species must be suboptimal for the other, and vice versa. Second, there must be covariance between environmental favorability and the intensity of competition: when conditions are optimal for a given species, intra-specific competition among its surging population is high, limiting its unchecked expansion, whereas during unfavorable periods, inter-specific competition is attenuated. Third, and most crucially, each species must possess a buffered population growth stage—such as a persistent dormant seed bank in annual plants, long-lived adult life stages in perennial trees, or durable larval diapause in insects. This buffered stage insulates the population against severe decline during unfavorable years by "storing" past reproductive gains, ensuring that the disadvantaged population survives until environmental conditions shift in its favor once again.
Which of the following scenarios in a commercial marketplace is most analogous to the operation of the storage effect described in the passage?
- AA software startup and an established conglomerate compete for enterprise clients; when an economic recession strikes, the startup reduces its subscription rates, while the conglomerate relies on emergency government grants to sustain its operations without modifying its business model.
- BTwo agricultural seed distributors develop high-yield crop seeds, but both suffer severe financial losses during an unprecedented drought because neither company had retained backup inventory from previous harvests.
- Two regional charter aviation companies with distinct fleet configurations—one operating turboprops optimized for harsh winter terrain and the other operating high-capacity jets optimized for dry summer tourism—sustainably compete in the same region because each relies on surplus revenues accumulated during its peak season to absorb losses during its off-peak season.Cevap
- DA brick-and-mortar retail bookstore and a digital e-commerce platform operate within the same municipal market by agreeing to sell strictly non-overlapping product categories, thereby eliminating direct price competition.
- EA legacy automobile manufacturer eliminates an emerging electric vehicle competitor by heavily investing in automated assembly lines during economic booms, permanently lowering its unit production costs and bankrupting the rival during the next market downturn.