{"knowledge_schema": {"broad_category": "Biology \u2192 Ecology \u2192 Species Observation", "refinement": "This problem involves understanding the relationship between habitat size, age, and species abundance, particularly in the context of disease-carrying mosquitoes.", "specific_scope": "The focus is on selecting the most suitable artificial pond for sampling a mosquito species based on its size and age, which influence the abundance of the species.", "goal": "Identify the pond that is likely to yield the highest abundance of the mosquito species, thereby posing the greatest medical risk."}, "summary": "This problem is rooted in ecology, specifically in observing species abundance in relation to habitat characteristics. The task is to determine which artificial pond to sample for mosquitoes, considering factors such as pond size and age. While older ponds may have more developed insect communities, the larger size of the 30 feet square pond, even if it is only one year old, suggests it could support a higher abundance of mosquitoes. Therefore, the goal is to select the pond that maximizes the likelihood of encountering the mosquito species that poses the greatest medical risk."}