Don DeAngelis, Ph.D.
Don DeAngelis is a Senior Scientist and Research Ecologist at the USGS Wetland and Aquatic Research Center.
RESEARCH
Donald DeAngelis is an ecologist, specializing in mathematical and simulation modeling. He was one of the early developers of individual-based modeling (IBM) in population ecology, and has applied IBM to fish and other populations. Among his other interests are modeling of vegetation succession, nutrient cycling, mutualistic interactions, and food webs. He is coordinator of the Across Trophic Level System Simulation (ATLSS) Program, a multi-project, multi-investigator program with the objective of providing simulation models to assist Everglades restoration.
BACKGROUND
1994-present, Ecologist, U. S. Geological Survey, Biological Resources Division, Florida Caribbean Science Center, Department of Biology, University of Miami, Coral Gables, FL 33124 Research Faculty Associate Professor, Department of Biology, University of Miami
Editor, The American Naturalist, 2004 -present
Editorial Boards
Currently: Ecological Complexity
Previously: Ecosystems, Mathematical Biosciences, Ecology, Ecological Monographs, Nonlier World, Journal of Aquatic Stress and Recovery Awards Fellow of American Association for the Advancement of Science, 1983 Martin Marietta Energy Systems, Inc. Technical Publications Award, 1986 Martin Marietta Energy Systems, Inc. Technical Publications Award, 1987 First Place, 1990 International Technical Publication Competition, sponsored by the Society for Technical Communication Martin Marietta Energy Systems, Inc., Technical Publications Award, 1991
Grants 'Spatial Gradients in Nutrient Recycling and Their Effect on Stream Ecosystem Stability'. National Science Foundation, April 1, 1991 - March 31, 1994, $1,419,019. Co-Principal Investigators, D. L. DeAngelis and P. J. Mulholland
'Compensatory Mechanisms in Fish Populations', Electric Power Research Institute. 1988 - 1996. Approximately $1 million per year. Principal Investigator, W. Van Winkle. D. L.
DeAngelis developed the approach used and wrote the initial funded proposal 'Synthesis of Species-Population Dynamics and Ecosystem Processes: Theoretical Study of the Stability and Development of Food Web Structure'. National Science Foundation, United States - Japan Cooperative Science Program. January 1, 1991 - December 31, 1992.Co-Principal Investigators, E. Teramoto and D. L. DeAngelis. Environmental Sciences Division Scientific Achievement Award for 1982 Areas of Focus Conservation and Restoration Biology Mathematical and Theoretical Biology
Education and Certifications
Ph.D., Engineering and Applied Science (Plasma Physics), Yale University, 1972
B.S., Physics, Massachusetts Institute of Technology, 1966
Science and Products
Nutrient fluxes at the landscape level and the R* rule
Match or mismatch: The influence of phenology on size-dependent life history and divergence in population structure
The ODD protocol: A review and first update
Fish population dynamics in a seasonally varying wetland
Challenges and opportunities for integrating lake ecosystem modelling approaches
Ecological hierarchies and self-organisation - Pattern analysis, modelling and process integration across scales
Modeling seasonal dynamics of small fish cohorts in fluctuating freshwater marsh landscapes
The golden rule of reviewing
Consumer-resource theory predicts dynamic transitions between outcomes of interspecific interactions
Plant toxicity, adaptive herbivory, and plant community dynamics
Troublesome toxins: Time to re-think plant-herbivore interactions in vertebrate ecology
Plant-herbivore interactions mediated by plant toxicity
Science and Products
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Filter Total Items: 188
Nutrient fluxes at the landscape level and the R* rule
Nutrient cycling in terrestrial ecosystems involves not only the vertical recycling of nutrients at specific locations in space, but also biologically driven horizontal fluxes between different areas of the landscape. This latter process can result in net accumulation of nutrients in some places and net losses in others. We examined the effects of such nutrient-concentrating fluxes on the R* rule,AuthorsShu Ju, Donald L. DeAngelisMatch or mismatch: The influence of phenology on size-dependent life history and divergence in population structure
1. In gape-limited predators, body size asymmetries determine the outcome of predator-prey interactions. Due to ontogenetic changes in body size, the intensity of intra- and interspecific interactions may change rapidly between the match situation of a predator-prey system and the mismatch situation in which competition, including competition with the prey, dominates. 2. Based on a physiologicallyAuthorsJost Borcherding, Peter Beeck, Donald L. DeAngelis, Werner R. ScharfThe ODD protocol: A review and first update
The ‘ODD’ (Overview, Design concepts, and Details) protocol was published in 2006 to standardize the published descriptions of individual-based and agent-based models (ABMs). The primary objectives of ODD are to make model descriptions more understandable and complete, thereby making ABMs less subject to criticism for being irreproducible. We have systematically evaluated existing uses of the ODDAuthorsVolker Grimm, Uta Berger, Donald L. DeAngelis, J. Gary Polhill, Jarl Giske, Steve F. RailsbackFish population dynamics in a seasonally varying wetland
Small fishes in seasonally flooded environments such as the Everglades are capable of spreading into newly flooded areas and building up substantial biomass. Passive drift cannot account for the rapidity of observed population expansions. To test the reaction-diffusion mechanism for spread of the fish, we estimated their diffusion coefficient and applied a reaction-diffusion model. This mechanismAuthorsDonald L. DeAngelis, Joel C. Trexler, Chris Cosner, Adam Obaza, Fred JoppChallenges and opportunities for integrating lake ecosystem modelling approaches
A large number and wide variety of lake ecosystem models have been developed and published during the past four decades. We identify two challenges for making further progress in this field. One such challenge is to avoid developing more models largely following the concept of others (‘reinventing the wheel’). The other challenge is to avoid focusing on only one type of model, while ignoring new aAuthorsWolf M. Mooij, Dennis Trolle, Erik Jeppesen, George Arhonditsis, Pavel V. Belolipetsky, Deonatus B.R. Chitamwebwa, Andrey G. Degermendzhy, Donald L. DeAngelis, Lisette N. De Senerpont Domis, Andrea S. Downing, J. Alex Elliott, Carlos Ruberto Fragoso, Ursula Gaedke, Svetlana N. Genova, Ramesh D. Gulati, Lars Hakanson, David P. Hamilton, Matthew R. Hipsey, Jochem 't Hoen, Stephan Hulsmann, F. Hans Los, Vardit Makler-Pick, Thomas Petzoldt, Igor G. Prokopkin, Karsten Rinke, Sebastiaan A. Schep, Koji Tominaga, Anne A. Van Dam, Egbert H. Van Nes, Scott A. Wells, Jan H. JanseEcological hierarchies and self-organisation - Pattern analysis, modelling and process integration across scales
A continuing discussion in applied and theoretical ecology focuses on the relationship of different organisational levels and on how ecological systems interact across scales. We address principal approaches to cope with complex across-level issues in ecology by applying elements of hierarchy theory and the theory of complex adaptive systems. A top-down approach, often characterised by the use ofAuthorsH. Reuter, F. Jopp, J. M. Blanco-Moreno, C. Damgaard, Y. Matsinos, D.L. DeAngelisModeling seasonal dynamics of small fish cohorts in fluctuating freshwater marsh landscapes
Small-bodied fishes constitute an important assemblage in many wetlands. In wetlands that dry periodically except for small permanent waterbodies, these fishes are quick to respond to change and can undergo large fluctuations in numbers and biomasses. An important aspect of landscapes that are mixtures of marsh and permanent waterbodies is that high rates of biomass production occur in the marshesAuthorsFred Jopp, Donald L. DeAngelis, Joel C. TrexlerThe golden rule of reviewing
A major bottleneck in the time required to publish a scientific or scholarly paper is the speed with which reviews by peers are returned to journals. Peer review is a reciprocal altruistic system in which each individual may perform every task—editors, reviewers, and authors—at different times. Journals have no way to coerce reviewers to return their critiques faster. To greatly shorten the time tAuthorsMark A. McPeek, Donald L. DeAngelis, Ruth G. Shaw, Allen J. Moore, Mark D. Rausher, Donald R. Strong, Aaron M. Ellison, Louise Barrett, Loren Rieseberg, Michael D. Breed, Jack Sullivan, Craig W. Osenberg, Marcel Holyoak, Mark A. ElgarConsumer-resource theory predicts dynamic transitions between outcomes of interspecific interactions
Interactions between two populations are often defined by their interaction outcomes; that is, the positive, neutral, or negative effects of species on one another. Yet, signs of outcomes are not absolute, but vary with the biotic and abiotic contexts of interactions. Here, we develop a general theory for transitions between outcomes based on consumer-resource (C-R) interactions in which one or boAuthorsJ. Nathaniel Holland, Donald L. DeAngelisPlant 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 plant speciAuthorsZ. Feng, R. Liu, D.L. DeAngelis, Lee C. Bryant, K. Kielland, Chapin F. Stuart, R.K. SwihartTroublesome toxins: Time to re-think plant-herbivore interactions in vertebrate ecology
Earlier models of plant-herbivore interactions relied on forms of functional response that related rates of ingestion by herbivores to mechanical or physical attributes such as bite size and rate. These models fail to predict a growing number of findings that implicate chemical toxins as important determinants of plant-herbivore dynamics. Specifically, considerable evidence suggests that toxins seAuthorsR.K. Swihart, D.L. DeAngelis, Z. Feng, Lee C. BryantPlant-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 can overwAuthorsZ. Feng, R. Liu, D.L. DeAngelis - News