Showing papers by "Stephen R. Carpenter published in 1981"
TL;DR: In a shallow eutrophic Lake Wingra, sedimentation is coupled with a positive feedback system involving littoral vegetation, the phytoplankton, and sediments near enough to the water surface for colonization by macrophytes as discussed by the authors.
Abstract: The accretion rate of sediments in a lake ecosystem is an index of its rate of aging. In shallow eutrophic Lake Wingra, sedimentation is coupled to a positive feedback system involving littoral vegetation, the phytoplankton, and sediments near enough to the water surface for colonization by macrophytes. Rooted plants enrich the water with nutrients and organic matter above the normal resuspension of sediments, thereby stimulating pelagic production and sedimentation that eventually produce more surface area colonizable by macrophytes. Analysis of a budget for colonizable surface area shows that relatively large changes in the rate of colonizable sediment accrual result from small changes in internal loading from sediments and littoral plants, the efficiency of decomposition, and the rate of sedimentation. On the other hand, the rate of accretion of colonizable sediment is relatively insensitive to changes in the influx of phosphorus and dry matter to the lake from the watershed. Internal mechanisms of enr...
153 citations
TL;DR: In this paper, a general model of decay of organic matter was proposed, which assumes that the various constituents of the decaying mass have different rates of decomposition and different rate of transformation to more or less decomposable forms.
63 citations
TL;DR: A summary of literature data indicates that regrowth diminishes as harvests occur later in the growing season, perhaps because late harvards alter TNC storage more effectively.
29 citations
TL;DR: The effects of control measures on a disease regulated pest population are analyzed using the May-Anderson model of infectious disease to show that control measures that increase the pest death rate and decrease the pest birth rate do not interfere with pest regulation by pathogens.
13 citations
TL;DR: In this article, a simulation model is developed to predict oxygen concentrations in littoral zones of shallow unstratified lakes after macrophytes have been killed by herbicides.
10 citations