Don DeAngelis, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 195
A simulation model for projecting changes in salinity concentrations and species dominance in the coastal margin habitats of the Everglades A simulation model for projecting changes in salinity concentrations and species dominance in the coastal margin habitats of the Everglades
Sharp boundaries typically separate the salinity tolerant mangroves from the salinity intolerant hardwood hammock species, which occupy the similar geographical areas of southern Florida. Evidence of strong feedback between tree community-type and the salinity of the unsaturated (vadose) zone of the soil suggests that a severe disturbance that significantly tilts the salinity in the...
Authors
S.Y. Teh, D.L. DeAngelis, L.D.S.L. Sternberg, F. R. Miralles-Wilhelm, T.J. Smith, H. L. Koh
An overview of methods for developing bioenergetic and life history models for rare and endangered species An overview of methods for developing bioenergetic and life history models for rare and endangered species
Many fish species are at risk to some degree, and conservation efforts are planned or underway to preserve sensitive populations. For many imperiled species, models could serve as useful tools for researchers and managers as they seek to understand individual growth, quantify predator-prey dynamics, and identify critical sources of mortality. Development and application of models for...
Authors
J.H. Petersen, D.L. DeAngelis, C.P. Paukert
Old world climbing fern (Lygodium microphyllum) spore germination in natural substrates Old world climbing fern (Lygodium microphyllum) spore germination in natural substrates
No abstract available
Authors
Erynn M. Call, Laura A. Brandt, Donald L. DeAngelis
Conditions for coexistence of freshwater mussel species via partitioning of fish host resources Conditions for coexistence of freshwater mussel species via partitioning of fish host resources
Riverine freshwater mussel species can be found in highly diverse communities where many similar species coexist. Mussel species potentially compete for food and space as adults, and for fish host resources during the larval (glochidial) stage. Resource partitioning at the larval stage may promote coexistence. A model of resource utilization was developed for two mussel species and...
Authors
Brenda Rashleigh, D.L. DeAngelis
Competition between hardwood hammocks and mangroves Competition between hardwood hammocks and mangroves
The boundaries between mangroves and freshwater hammocks in coastal ecotones of South Florida are sharp. Further, previous studies indicate that there is a discontinuity in plant predawn water potentials, with woody plants either showing predawn water potentials reflecting exposure to saline water or exposure to freshwater. This abrupt concurrent change in community type and plant water...
Authors
L.D.S.L. Sternberg, S.Y. Teh, S.M.L. Ewe, F. Miralles-Wilhelm, D.L. DeAngelis
Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III
The Florida snail kite (Rostrhamus sociabilis) is an endangered raptor that occurs as an isolated population, currently of about 2,000 birds, in the wetlands of southern and central Florida, USA. Its exclusive prey species, the apple snail (Pomacea paludosa) is strongly influenced by seasonal changes in water abundance. Droughts during the snail kite breeding season have a direct...
Authors
Wolf M. Mooij, Julien Martin, Wiley M. Kitchens, Donald L. DeAngelis
A standard protocol for describing individual-based and agent-based models A standard protocol for describing individual-based and agent-based models
Simulation models that describe autonomous individual organisms (individual based models, IBM) or agents (agent-based models, ABM) have become a widely used tool, not only in ecology, but also in many other disciplines dealing with complex systems made up of autonomous entities. However, there is no standard protocol for describing such simulation models, which can make them difficult to
Authors
Volker Grimm, Uta Berger, Finn Bastiansen, Sigrunn Eliassen, Vincent Ginot, Jarl Giske, John Goss-Custard, Tamara Grand, Simone K. Heinz, Geir Huse, Andreas Huth, Jane U. Jepsen, Christian Jorgensen, Wolf M. Mooij, Birgit Muller, Guy Pe’er, Cyril Piou, Steven F. Railsback, Andrew M. Robbins, Martha M. Robbins, Eva Rossmanith, Nadja Ruger, Espen Strand, Sami Souissi, Richard A. Stillman, Rune Vabo, Ute Visser, Donald L. DeAngelis
Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance" Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance"
Bascompte et al. (Reports, 21 April 2006, p. 431) used network asymmetries to explain mathematical conditions necessary for stability in historic models of mutualism. The Lotka-Volterra equations they used artificially created conditions in which some factor, such as asymmetric interaction strengths, is necessary for community coexistence. We show that a more realistic model...
Authors
J. Nathaniel Holland, Toshinori Okuyama, Donald L. DeAngelis
Host mating system and the prevalence of a disease in a plant population Host mating system and the prevalence of a disease in a plant population
A modified susceptible–infected–recovered (SIR) host–pathogen model is used to determine the influence of plant mating system on the outcome of a host–pathogen interaction. Unlike previous models describing how interactions between mating system and pathogen infection affect individual fitness, this model considers the potential consequences of varying mating systems on the prevalence of
Authors
Jennifer M. Koslow, Donald L. DeAngelis
Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism
Prey (N) dependence [g(N)], predator (P) dependence [g(P) or g(N,P)], and ratio dependence [f(P/N)] are often seen as contrasting forms of the predator's functional response describing predator consumption rates on prey resources in predator–prey and parasitoid–host interactions. Analogously, prey-, predator-, and ratio-dependent functional responses are apparently alternative functional...
Authors
Donald L. DeAngelis, J. Nathaniel Holland
Multimodeling: new approaches for linking ecological models Multimodeling: new approaches for linking ecological models
The Everglades region of South Florida presents one of the major natural system management challenges facing the United States. With its assortment of alligators, crocodiles, manatees, panthers, large mixed flocks of wading birds, highly diverse subtropical flora, and sea of sawgrass, the ecosystem is unique in this country (Davis and Ogden 1994). The region is also perhaps the largest...
Authors
Louis J. Gross, Donald L. DeAngelis
Individual-based modeling of ecological and evolutionary processes Individual-based modeling of ecological and evolutionary processes
Individual-based models (IBMs) allow the explicit inclusion of individual variation in greater detail than do classical differential-equation and difference-equation models. Inclusion of such variation is important for continued progress in ecological and evolutionary theory. We provide a conceptual basis for IBMs by describing five major types of individual variation in IBMs: spatial...
Authors
Donald L. DeAngelis, Wolf M. Mooij
Science and Products
Filter Total Items: 195
A simulation model for projecting changes in salinity concentrations and species dominance in the coastal margin habitats of the Everglades A simulation model for projecting changes in salinity concentrations and species dominance in the coastal margin habitats of the Everglades
Sharp boundaries typically separate the salinity tolerant mangroves from the salinity intolerant hardwood hammock species, which occupy the similar geographical areas of southern Florida. Evidence of strong feedback between tree community-type and the salinity of the unsaturated (vadose) zone of the soil suggests that a severe disturbance that significantly tilts the salinity in the...
Authors
S.Y. Teh, D.L. DeAngelis, L.D.S.L. Sternberg, F. R. Miralles-Wilhelm, T.J. Smith, H. L. Koh
An overview of methods for developing bioenergetic and life history models for rare and endangered species An overview of methods for developing bioenergetic and life history models for rare and endangered species
Many fish species are at risk to some degree, and conservation efforts are planned or underway to preserve sensitive populations. For many imperiled species, models could serve as useful tools for researchers and managers as they seek to understand individual growth, quantify predator-prey dynamics, and identify critical sources of mortality. Development and application of models for...
Authors
J.H. Petersen, D.L. DeAngelis, C.P. Paukert
Old world climbing fern (Lygodium microphyllum) spore germination in natural substrates Old world climbing fern (Lygodium microphyllum) spore germination in natural substrates
No abstract available
Authors
Erynn M. Call, Laura A. Brandt, Donald L. DeAngelis
Conditions for coexistence of freshwater mussel species via partitioning of fish host resources Conditions for coexistence of freshwater mussel species via partitioning of fish host resources
Riverine freshwater mussel species can be found in highly diverse communities where many similar species coexist. Mussel species potentially compete for food and space as adults, and for fish host resources during the larval (glochidial) stage. Resource partitioning at the larval stage may promote coexistence. A model of resource utilization was developed for two mussel species and...
Authors
Brenda Rashleigh, D.L. DeAngelis
Competition between hardwood hammocks and mangroves Competition between hardwood hammocks and mangroves
The boundaries between mangroves and freshwater hammocks in coastal ecotones of South Florida are sharp. Further, previous studies indicate that there is a discontinuity in plant predawn water potentials, with woody plants either showing predawn water potentials reflecting exposure to saline water or exposure to freshwater. This abrupt concurrent change in community type and plant water...
Authors
L.D.S.L. Sternberg, S.Y. Teh, S.M.L. Ewe, F. Miralles-Wilhelm, D.L. DeAngelis
Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III Exploring the temporal effects of seasonal water availability on the snail kite of Florida: Part III
The Florida snail kite (Rostrhamus sociabilis) is an endangered raptor that occurs as an isolated population, currently of about 2,000 birds, in the wetlands of southern and central Florida, USA. Its exclusive prey species, the apple snail (Pomacea paludosa) is strongly influenced by seasonal changes in water abundance. Droughts during the snail kite breeding season have a direct...
Authors
Wolf M. Mooij, Julien Martin, Wiley M. Kitchens, Donald L. DeAngelis
A standard protocol for describing individual-based and agent-based models A standard protocol for describing individual-based and agent-based models
Simulation models that describe autonomous individual organisms (individual based models, IBM) or agents (agent-based models, ABM) have become a widely used tool, not only in ecology, but also in many other disciplines dealing with complex systems made up of autonomous entities. However, there is no standard protocol for describing such simulation models, which can make them difficult to
Authors
Volker Grimm, Uta Berger, Finn Bastiansen, Sigrunn Eliassen, Vincent Ginot, Jarl Giske, John Goss-Custard, Tamara Grand, Simone K. Heinz, Geir Huse, Andreas Huth, Jane U. Jepsen, Christian Jorgensen, Wolf M. Mooij, Birgit Muller, Guy Pe’er, Cyril Piou, Steven F. Railsback, Andrew M. Robbins, Martha M. Robbins, Eva Rossmanith, Nadja Ruger, Espen Strand, Sami Souissi, Richard A. Stillman, Rune Vabo, Ute Visser, Donald L. DeAngelis
Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance" Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance"
Bascompte et al. (Reports, 21 April 2006, p. 431) used network asymmetries to explain mathematical conditions necessary for stability in historic models of mutualism. The Lotka-Volterra equations they used artificially created conditions in which some factor, such as asymmetric interaction strengths, is necessary for community coexistence. We show that a more realistic model...
Authors
J. Nathaniel Holland, Toshinori Okuyama, Donald L. DeAngelis
Host mating system and the prevalence of a disease in a plant population Host mating system and the prevalence of a disease in a plant population
A modified susceptible–infected–recovered (SIR) host–pathogen model is used to determine the influence of plant mating system on the outcome of a host–pathogen interaction. Unlike previous models describing how interactions between mating system and pathogen infection affect individual fitness, this model considers the potential consequences of varying mating systems on the prevalence of
Authors
Jennifer M. Koslow, Donald L. DeAngelis
Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism Emergence of ratio-dependent and predator-dependent functional responses for pollination mutualism and seed parasitism
Prey (N) dependence [g(N)], predator (P) dependence [g(P) or g(N,P)], and ratio dependence [f(P/N)] are often seen as contrasting forms of the predator's functional response describing predator consumption rates on prey resources in predator–prey and parasitoid–host interactions. Analogously, prey-, predator-, and ratio-dependent functional responses are apparently alternative functional...
Authors
Donald L. DeAngelis, J. Nathaniel Holland
Multimodeling: new approaches for linking ecological models Multimodeling: new approaches for linking ecological models
The Everglades region of South Florida presents one of the major natural system management challenges facing the United States. With its assortment of alligators, crocodiles, manatees, panthers, large mixed flocks of wading birds, highly diverse subtropical flora, and sea of sawgrass, the ecosystem is unique in this country (Davis and Ogden 1994). The region is also perhaps the largest...
Authors
Louis J. Gross, Donald L. DeAngelis
Individual-based modeling of ecological and evolutionary processes Individual-based modeling of ecological and evolutionary processes
Individual-based models (IBMs) allow the explicit inclusion of individual variation in greater detail than do classical differential-equation and difference-equation models. Inclusion of such variation is important for continued progress in ecological and evolutionary theory. We provide a conceptual basis for IBMs by describing five major types of individual variation in IBMs: spatial...
Authors
Donald L. DeAngelis, Wolf M. Mooij