Don DeAngelis, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 195
Trait contributions to fish community assembly emerge from trophicinteractions in an individual-based model Trait contributions to fish community assembly emerge from trophicinteractions in an individual-based model
Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities...
Authors
Henrique C. Giacomini, Donald DeAngelis, Joel C. Trexler, Miguel Petrere
Strong species-environment feedback shapes plant community assembly along environmental gradients Strong species-environment feedback shapes plant community assembly along environmental gradients
An aim of community ecology is to understand the patterns of competing species assembly along environmental gradients. All species interact with their environments. However, theories of community assembly have seldom taken into account the effects of species that are able to engineer the environment. In this modeling study, we integrate the species' engineering trait together with...
Authors
Jiang Jiang, Donald L. DeAngelis
Plant allocation of carbon to defense as a function of herbivory, light and nutrient availability Plant allocation of carbon to defense as a function of herbivory, light and nutrient availability
We use modeling to determine the optimal relative plant carbon allocations between foliage, fine roots, anti-herbivore defense, and reproduction to maximize reproductive output. The model treats these plant components and the herbivore compartment as variables. Herbivory is assumed to be purely folivory. Key external factors include nutrient availability, degree of shading, and intensity...
Authors
Donald L. DeAngelis, Shu Ju, Rongsong Liu, John P. Bryant, Stephen A. Gourley
Towards a theory of ecotone resilience: coastal vegetation on a salinity gradient Towards a theory of ecotone resilience: coastal vegetation on a salinity gradient
Ecotones represent locations where vegetation change is likely to occur as a result of climate and other environmental changes. Using a model of an ecotone vulnerable to such future changes, we estimated the resilience of the ecotone to disturbances. The specific ecotone is that between two different vegetation types, salinity-tolerant and salinity-intolerant, along a gradient in...
Authors
Jiang Jiang, Daozhou Gao, Donald L. DeAngelis
Plant toxins and trophic cascades alter fire regime and succession on a boral forest landscape Plant toxins and trophic cascades alter fire regime and succession on a boral forest landscape
Two models were integrated in order to study the effect of plant toxicity and a trophic cascade on forest succession and fire patterns across a boreal landscape in central Alaska. One of the models, ALFRESCO, is a cellular automata model that stochastically simulates transitions from spruce dominated 1 km2 spatial cells to deciduous woody vegetation based on stochastic fires, and from...
Authors
Zhilan Feng, Jorge A. Alfaro-Murillo, Donald L. DeAngelis, Jennifer Schmidt, Matthew Barga, Yiqiang Zheng, Muhammad Hanis B. Ahmad Tamrin, Mark Olson, Tim Glaser, Knut Kielland, F. Stuart Chapin, John Bryant
Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study
Coastal vegetation of South Florida typically comprises salinity-tolerant mangroves bordering salinity-intolerant hardwood hammocks and fresh water marshes. Two primary ecological factors appear to influence the maintenance of mangrove/hammock ecotones against changes that might occur due to disturbances. One of these is a gradient in one or more environmental factors. The other is the...
Authors
J. Jiang, Donald L. DeAngelis, T. J. Smith, S.Y. Teh, H. L. Koh
Science and Products
Filter Total Items: 195
Trait contributions to fish community assembly emerge from trophicinteractions in an individual-based model Trait contributions to fish community assembly emerge from trophicinteractions in an individual-based model
Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities...
Authors
Henrique C. Giacomini, Donald DeAngelis, Joel C. Trexler, Miguel Petrere
Strong species-environment feedback shapes plant community assembly along environmental gradients Strong species-environment feedback shapes plant community assembly along environmental gradients
An aim of community ecology is to understand the patterns of competing species assembly along environmental gradients. All species interact with their environments. However, theories of community assembly have seldom taken into account the effects of species that are able to engineer the environment. In this modeling study, we integrate the species' engineering trait together with...
Authors
Jiang Jiang, Donald L. DeAngelis
Plant allocation of carbon to defense as a function of herbivory, light and nutrient availability Plant allocation of carbon to defense as a function of herbivory, light and nutrient availability
We use modeling to determine the optimal relative plant carbon allocations between foliage, fine roots, anti-herbivore defense, and reproduction to maximize reproductive output. The model treats these plant components and the herbivore compartment as variables. Herbivory is assumed to be purely folivory. Key external factors include nutrient availability, degree of shading, and intensity...
Authors
Donald L. DeAngelis, Shu Ju, Rongsong Liu, John P. Bryant, Stephen A. Gourley
Towards a theory of ecotone resilience: coastal vegetation on a salinity gradient Towards a theory of ecotone resilience: coastal vegetation on a salinity gradient
Ecotones represent locations where vegetation change is likely to occur as a result of climate and other environmental changes. Using a model of an ecotone vulnerable to such future changes, we estimated the resilience of the ecotone to disturbances. The specific ecotone is that between two different vegetation types, salinity-tolerant and salinity-intolerant, along a gradient in...
Authors
Jiang Jiang, Daozhou Gao, Donald L. DeAngelis
Plant toxins and trophic cascades alter fire regime and succession on a boral forest landscape Plant toxins and trophic cascades alter fire regime and succession on a boral forest landscape
Two models were integrated in order to study the effect of plant toxicity and a trophic cascade on forest succession and fire patterns across a boreal landscape in central Alaska. One of the models, ALFRESCO, is a cellular automata model that stochastically simulates transitions from spruce dominated 1 km2 spatial cells to deciduous woody vegetation based on stochastic fires, and from...
Authors
Zhilan Feng, Jorge A. Alfaro-Murillo, Donald L. DeAngelis, Jennifer Schmidt, Matthew Barga, Yiqiang Zheng, Muhammad Hanis B. Ahmad Tamrin, Mark Olson, Tim Glaser, Knut Kielland, F. Stuart Chapin, John Bryant
Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study
Coastal vegetation of South Florida typically comprises salinity-tolerant mangroves bordering salinity-intolerant hardwood hammocks and fresh water marshes. Two primary ecological factors appear to influence the maintenance of mangrove/hammock ecotones against changes that might occur due to disturbances. One of these is a gradient in one or more environmental factors. The other is the...
Authors
J. Jiang, Donald L. DeAngelis, T. J. Smith, S.Y. Teh, H. L. Koh