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Intensive research activity alters short-term seedling dynamics in a tropical forest
Comita L; Goldsmith G; Hubbell S
Researchers can have unintentional yet significant effects on their study systems. We tested for the effects of an intensive tree census on seedling dynamics in a 50-ha permanent forest plot on Barro Colorado Island Panama. At the community level and for different shade-tolerance guilds we found no significant differences in seedling recruitment or survival inside compared to controls outside the plot. However among growth forms canopy trees and lianas exhibited significantly lower seedling survival inside the plot. Results suggest that intense researcher activity impacts short-term vegetation dynamics but effects do not accumulate over time.
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