id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-103294-1lrfna4v	Northrop, Amanda C.	Clockwise and counterclockwise hysteresis characterize state changes in the same aquatic ecosystem	2020-05-02		.txt	text/plain	596	32	47	A model system for understanding ecosystem recovery is the aquatic microecosystem that inhabits the cup-shaped leaves of the pitcher plant Sarracenia purpurea. At low enrichment rates, ecosystems showed a substantial lag in the recovery of [O2] (clockwise hysteresis). At high enrichment rates, we observed a novel response: changes in [O2] were proportionally larger during the recovery phase than during the enrichment phase (counter-clockwise hysteresis). With counter-clockwise hysteresis, rapid reduction of a driver variable following high enrichment rates may be a viable restoration strategy. In ecosystems where hysteresis is counter-clockwise, rapid reduction in a driver variable from high to low levels may be 111 a successful restoration strategy. In contrast, systems that have experienced chronic low-levels of enrichment may exhibit 112 clockwise hysteresis that requires more extreme reductions of the driver variable, or alternative restoration strategies 36 , to 113 restore.	./cache/cord-103294-1lrfna4v.txt	./txt/cord-103294-1lrfna4v.txt