Don DeAngelis, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 195
Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients
A model of a closed phytoplankton—zooplankton ecosystem was analyzed for effects of temperature on stocks and stability and the dependence of these effects on light and total nutrient concentration of the system. An analysis of the steady state equations showed that the effect of temperature on zooplankton and POM biomass was levelled when primary production is nutrient limited...
Authors
J. Norberg, D.L. DeAngelis
Source-sink dynamics and the coexistence of species on a single resource Source-sink dynamics and the coexistence of species on a single resource
We investigate the potential for coexistence of species that compete for a shared resource when the resource occurs in both a source area acting as a refuge and a sink area where it is used by the competing species. Our model shows that the mixing rate between the source and sink resource populations has a dramatic influence on the outcome of competition. When there is a strict sink...
Authors
M. Loreau, D.L. DeAngelis
A simulation study of the spatiotemporal dynamics of the Unionid mussels A simulation study of the spatiotemporal dynamics of the Unionid mussels
Abstract not supplied at this time
Authors
Hooi-Ling Lee, D.L. DeAngelis
The interaction of spatial scale and predator-prey functional response The interaction of spatial scale and predator-prey functional response
Predator-prey models with a prey-dependent functional response have the property that the prey equilibrium value is determined only by predator characteristics. However, in observed natural systems (for instance, snail-periphyton interactions in streams) the equilibrium periphyton biomass has been shown experimentally to be influenced by both snail numbers and levels of available...
Authors
T.W. Blaine, D.L. DeAngelis
The effect of functional response on stability of a grazer population on a landscape The effect of functional response on stability of a grazer population on a landscape
The dynamics of interacting consumer and resource populations is one of the most thoroughly studied problems of theoretical population biology. Among the key results from the study of simple mathematical models of interacting populations is that the Holling Type 2 functional response tends to be unstable for a wide range of realistic parameters. Functional responses such as Holling Type...
Authors
A.D. Basset, D.L. DeAngelis, J.E. Diffendorfer
Indirect effects: Concepts and approaches from ecological theory Indirect effects: Concepts and approaches from ecological theory
Abstract not supplied at this time
Authors
D.L. DeAngeis
Science and Products
Filter Total Items: 195
Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients
A model of a closed phytoplankton—zooplankton ecosystem was analyzed for effects of temperature on stocks and stability and the dependence of these effects on light and total nutrient concentration of the system. An analysis of the steady state equations showed that the effect of temperature on zooplankton and POM biomass was levelled when primary production is nutrient limited...
Authors
J. Norberg, D.L. DeAngelis
Source-sink dynamics and the coexistence of species on a single resource Source-sink dynamics and the coexistence of species on a single resource
We investigate the potential for coexistence of species that compete for a shared resource when the resource occurs in both a source area acting as a refuge and a sink area where it is used by the competing species. Our model shows that the mixing rate between the source and sink resource populations has a dramatic influence on the outcome of competition. When there is a strict sink...
Authors
M. Loreau, D.L. DeAngelis
A simulation study of the spatiotemporal dynamics of the Unionid mussels A simulation study of the spatiotemporal dynamics of the Unionid mussels
Abstract not supplied at this time
Authors
Hooi-Ling Lee, D.L. DeAngelis
The interaction of spatial scale and predator-prey functional response The interaction of spatial scale and predator-prey functional response
Predator-prey models with a prey-dependent functional response have the property that the prey equilibrium value is determined only by predator characteristics. However, in observed natural systems (for instance, snail-periphyton interactions in streams) the equilibrium periphyton biomass has been shown experimentally to be influenced by both snail numbers and levels of available...
Authors
T.W. Blaine, D.L. DeAngelis
The effect of functional response on stability of a grazer population on a landscape The effect of functional response on stability of a grazer population on a landscape
The dynamics of interacting consumer and resource populations is one of the most thoroughly studied problems of theoretical population biology. Among the key results from the study of simple mathematical models of interacting populations is that the Holling Type 2 functional response tends to be unstable for a wide range of realistic parameters. Functional responses such as Holling Type...
Authors
A.D. Basset, D.L. DeAngelis, J.E. Diffendorfer
Indirect effects: Concepts and approaches from ecological theory Indirect effects: Concepts and approaches from ecological theory
Abstract not supplied at this time
Authors
D.L. DeAngeis