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Nutrients in Senesced Leaves: Keys to the Search for Potential Resorption and Resorption Proficiency
- K. Killingbeck
- 1 September 1996
Analyses of nitrogen and phosphorus in the senesced leaves of 89 species of deciduous and evergreen woody perennials were used (1) to discover the limits of ultimate potential resorption (maximal… Expand
The Influence of Geomorphological Heterogeneity on Biodiversity I. A Patch‐Scale Perspective
Landscapes composed of spatially heterogeneous abiotic conditions should provide a greater diver- sity of potential niches for plants and animals than do homogeneous landscapes. We tested this… Expand
The Influence of Geomorphological Heterogeneity on Biodiversity : II . A Landscape Perspective
The influence of geomorphological heterogeneity on vascular plant species richness was studied in 26 Rhode Island Audubon refuges ranging in size from 1.4 to 58.6 ha. Indices of abiotic heterogeneity… Expand
Allelopathic inhibition of nitrification and nitrifying bacteria in a ponderosa pine (Pinus ponderosa Dougl.) community.
The dynamics of ponderosa pine (Pinus ponderosa Dougl.) stands in western North Dakota were studied to determine the influence of plant-produced chemicals on nitrification rates and competitive… Expand
Element resorption in a guild of understory shrub species: niche differentiation and resorption thresholds
Element resorption dynamics were studied in three understory species that dominate a well-developed guild of perennial shrubs in a nutrient poor oak forest in Rhode Island, USA. Mean guild resorption… Expand
Foliar senescence in an aspen (Populus tremuloides) clone: the response of element resorption to interramet variation and timing of abscission.
Nutrient movements in the senescing foliage of a Rhode Island Populustremuloides Michx. clone were measured during the years 1986–1988. Mean resorption of nitrogen, phosphorus, and copper was 43, 51,… Expand
High Foliar Nitrogen in Desert Shrubs: An Important Ecosystem Trait or Defective Desert Doctrine?
Nitrogen concentrations in green and senesced leaves of perennial desert shrubs were compiled from a worldwide literature search to test the validity of the doctrine that desert shrubs produce… Expand
14 – Nutrient Resorption
- K. Killingbeck
Publisher Summary Resorption in an individual plant or plant population can vary significantly from year to year. The plants often resorb amounts of nutrients lower than amounts that could be… Expand
Effects of Preventing Nutrient Resorption on Plant Fitness and Foliar Nutrient Dynamics
To determine whether autumnal nutrient resorption contributes significantly to plant fitness, resorption was prevented by defoliating scrub oak (Quercus ilicifolia) plants ("defoliated plants") just… Expand
Concentrations of ten elements in two common foliose lichens: Leachability, seasonality, and the influence of rock and tree bark substrates. [Flavoparmelia baltimorensis; F. caperata]
Concentrations often elements were studied in two morphologically similar species of foliose lichens (Flavoparmelia baltimorensis and F. caperata) that grow on tree bark and granite boulders in Rhode… Expand