Question

Difficulty: Very hardInferential Comprehension and Deduction

Read the passage below carefully:

For decades, the conservation of the Hadejia-Nguru wetlands in northern Nigeria relied on top-down ecological bans that prohibited local farming communities from harvesting wild doum palm fibers during peak dry seasons. Government conservationists argued that uncontrolled harvesting disrupted the nesting grounds of migratory waterbirds. However, recent ethnobotanical assessments revealed a subtle ecological synergy: the traditional selective pruning practiced by indigenous harvesters actually stimulated new frond growth, preventing dense canopy closure that would otherwise choke shallow waterways vital for bird foraging. When regional authorities replaced the absolute prohibition with a managed harvesting calendar structured around traditional pruning cycles, wetland bird populations increased by thirty percent over five years, while local artisan incomes stabilized. Paradoxically, neighboring reserves that maintained strict, non-interventionist conservation policies experienced marked declines in avian biodiversity, as unmanaged vegetation overgrown by invasive weeds degraded open water habitats.

Statement: The passage implies that managed human ecological participation can yield superior biodiversity conservation outcomes compared to strict environmental isolation.

Answer: Answer

Answer

True. The passage demonstrates through empirical comparison that structured human intervention (selective pruning under a managed calendar) prevented canopy closure and boosted bird populations, whereas absolute non-intervention degraded wetland habitats.
The deduction is valid because the text explicitly contrasts two paradigms: managed community pruning (which increased bird populations by 30%) and non-interventionist preservation (which led to weed infestation and biodiversity decline). The logical conclusion is that controlled human intervention is superior to complete environmental isolation in this context.

Step-by-Step Solution

1
Analyze the text to identify the results of the two distinct conservation approaches described.
Managed harvesting led to a 30% increase in bird populations, whereas non-interventionist reserves suffered marked declines in avian biodiversity.
Comparing outcomes from both models provides the empirical foundation for inferring the author's unstated premise.
2
Examine the ecological mechanism underlying the difference in outcomes.
Traditional selective pruning prevented dense canopy closure and kept waterways open for foraging, whereas unmanaged reserves became overgrown with invasive weeds.
Deduction requires understanding the cause-and-effect relationship between human activity and ecosystem health.
3
Evaluate the statement against the synthesized conclusion.
The claim that managed human participation can outperform strict environmental isolation accurately reflects the implicit core deduction of the passage.
Confirms the true status of the deductive claim.

Key Concept

Inferential Comprehension and Deduction
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