Your search for keyword(s) "nutrient content" resulted in 2 record(s).

Title: Herbivores, the functional diversity of plants species, and the cycling of nutrients in ecosystems: Journal: Theoretical Population Biology; Authors: J. Pastor, and Y. Cohen; Date: 1997; Summary: This article explores the effect of herbivores on ecosystem nutrient and energy flow in a boreal regions, given the assumption that plant species differ in herbivore preference, nutrient uptake rates, and decomposition rates. This article also shows that if the consumer selects a plant species based on the chemical factors that simultaneously control both digestion and decomposition, then over a very wide range of consumer return of fecal material, the rates of energy and nutrient flow through the system are less than that of a system where the consumer is absent. Moreover, one of the plants ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Lack of induced chemical defense in juvenile Alaskan woody plants in response to simulated browsing: Journal: Oecologia; Authors: F. S. Chapin, III, J. P. Bryant, and J. F. Fox; Date: 1985; Summary: The authors of this study clipped juvenile poplar (Populus balsamifera), willow (Salix bebbiana), birch (Betula papyrifera), alder (Alnus crispa) and aspen (Populus tremuloides) to determine if the chemical defenses of these species increased in reaction to herbivory. Clipping did not significantly effect concentrations of carbohydrates, nitrogen, phosphorous, resin or tannins in annual growth two growing seasons after clipping treatments were applied. Plant tannin and resin levels were inversely related. Plants with high levels of resin, such as birch, had low levels of tannin, and plants ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article