Don DeAngelis, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 195
Plant toxicity, adaptive herbivory, and plant community dynamics Plant toxicity, adaptive herbivory, and plant community dynamics
We model effects of interspecific plant competition, herbivory, and a plant's toxic defenses against herbivores on vegetation dynamics. The model predicts that, when a generalist herbivore feeds in the absence of plant toxins, adaptive foraging generally increases the probability of coexistence of plant species populations, because the herbivore switches more of its effort to whichever...
Authors
Z. Feng, R. Liu, D.L. DeAngelis, Lee C. Bryant, K. Kielland, Chapin F. Stuart, R.K. Swihart
Allowing macroalgae growth forms to emerge: Use of an agent-based model to understand the growth and spread of macroalgae in Florida coral reefs, with emphasis on Halimeda tuna Allowing macroalgae growth forms to emerge: Use of an agent-based model to understand the growth and spread of macroalgae in Florida coral reefs, with emphasis on Halimeda tuna
The growth patterns of macroalgae in three-dimensional space can provide important information regarding the environments in which they live, and insights into changes that may occur when those environments change due to anthropogenic and/or natural causes. To decipher these patterns and their attendant mechanisms and influencing factors, a spatially explicit model has been developed...
Authors
A.T. Yniguez, J.W. McManus, D.L. DeAngelis
Host mating system and the spread of a disease-resistant allele in a population Host mating system and the spread of a disease-resistant allele in a population
The model presented here modifies a susceptible-infected (SI) host-pathogen model to determine the influence of mating system on the outcome of a host-pathogen interaction. Both deterministic and stochastic (individual-based) versions of the model were used. This model considers the potential consequences of varying mating systems on the rate of spread of both the pathogen and resistance...
Authors
D.L. DeAngelis, Jennifer M. Koslow, J. Jiang, S. Ruan
Emergence of functional responses from interactions of individuals Emergence of functional responses from interactions of individuals
No abstract available.
Authors
Donald L. DeAngelis, Shu Ju, J. Nathaniel Holland
Food web dynamics in a seasonally varying wetland Food web dynamics in a seasonally varying wetland
A spatially explicit model is developed to simulate the small fish community and its underlying food web, in the freshwater marshes of the Everglades. The community is simplified to a few small fish species feeding on periphyton and invertebrates. Other compartments are detritus, crayfish, and a piscivorous fish species. This unit food web model is applied to each of the 10,000 spatial...
Authors
D.L. DeAngelis, J.C. Trexler, D.D. Donalson
Plant-herbivore interactions mediated by plant toxicity Plant-herbivore interactions mediated by plant toxicity
We explore the impact of plant toxicity on the dynamics of a plant-herbivore interaction, such as that of a mammalian browser and its plant forage species, by studying a mathematical model that includes a toxin-determined functional response. In this functional response, the traditional Holling Type 2 response is modified to include the negative effect of toxin on herbivore growth, which...
Authors
Z. Feng, R. Liu, D.L. DeAngelis
Science and Products
Filter Total Items: 195
Plant toxicity, adaptive herbivory, and plant community dynamics Plant toxicity, adaptive herbivory, and plant community dynamics
We model effects of interspecific plant competition, herbivory, and a plant's toxic defenses against herbivores on vegetation dynamics. The model predicts that, when a generalist herbivore feeds in the absence of plant toxins, adaptive foraging generally increases the probability of coexistence of plant species populations, because the herbivore switches more of its effort to whichever...
Authors
Z. Feng, R. Liu, D.L. DeAngelis, Lee C. Bryant, K. Kielland, Chapin F. Stuart, R.K. Swihart
Allowing macroalgae growth forms to emerge: Use of an agent-based model to understand the growth and spread of macroalgae in Florida coral reefs, with emphasis on Halimeda tuna Allowing macroalgae growth forms to emerge: Use of an agent-based model to understand the growth and spread of macroalgae in Florida coral reefs, with emphasis on Halimeda tuna
The growth patterns of macroalgae in three-dimensional space can provide important information regarding the environments in which they live, and insights into changes that may occur when those environments change due to anthropogenic and/or natural causes. To decipher these patterns and their attendant mechanisms and influencing factors, a spatially explicit model has been developed...
Authors
A.T. Yniguez, J.W. McManus, D.L. DeAngelis
Host mating system and the spread of a disease-resistant allele in a population Host mating system and the spread of a disease-resistant allele in a population
The model presented here modifies a susceptible-infected (SI) host-pathogen model to determine the influence of mating system on the outcome of a host-pathogen interaction. Both deterministic and stochastic (individual-based) versions of the model were used. This model considers the potential consequences of varying mating systems on the rate of spread of both the pathogen and resistance...
Authors
D.L. DeAngelis, Jennifer M. Koslow, J. Jiang, S. Ruan
Emergence of functional responses from interactions of individuals Emergence of functional responses from interactions of individuals
No abstract available.
Authors
Donald L. DeAngelis, Shu Ju, J. Nathaniel Holland
Food web dynamics in a seasonally varying wetland Food web dynamics in a seasonally varying wetland
A spatially explicit model is developed to simulate the small fish community and its underlying food web, in the freshwater marshes of the Everglades. The community is simplified to a few small fish species feeding on periphyton and invertebrates. Other compartments are detritus, crayfish, and a piscivorous fish species. This unit food web model is applied to each of the 10,000 spatial...
Authors
D.L. DeAngelis, J.C. Trexler, D.D. Donalson
Plant-herbivore interactions mediated by plant toxicity Plant-herbivore interactions mediated by plant toxicity
We explore the impact of plant toxicity on the dynamics of a plant-herbivore interaction, such as that of a mammalian browser and its plant forage species, by studying a mathematical model that includes a toxin-determined functional response. In this functional response, the traditional Holling Type 2 response is modified to include the negative effect of toxin on herbivore growth, which...
Authors
Z. Feng, R. Liu, D.L. DeAngelis