51. Community Ecology
Community Structure
Problem 12
Textbook Question
Textbook QuestionA team of 102 scientists spent a year surveying a small area of the San Lorenzo rain forest in Panama to count the number of species of arthropods living there. After collecting 129,494 specimens—using nets, traps, shovels, tree-climbing harnesses, helium balloons, and other creative gear—it took the team eight years to sort and identify the arthropods. Rather than measuring the entire 6000-hectare (ha) forest, the researchers sampled arthropod diversity by intensively collecting as many arthropods as they could in 12 plots that measured 20 m×20 m square. If 1 ha=10,000 m2,, how many hectares of forest did they sample in all? a. 20 m×20 m×12=4800 ha b. 4800 m2×10,000 m2/1 ha=48,000,000 ha c. 20 m×20 m=400 ha d. 4800 m^2 x 1ha/10,000 m^2 = 0.48 ha
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