Don DeAngelis, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 195
The effects of mixotrophy on the stability and dynamics of a simple planktonic food web The effects of mixotrophy on the stability and dynamics of a simple planktonic food web
Recognition of the microbial loop as an important part of aquatic ecosystems disrupted the notion of simple linear food chains. However, current research suggests that even the microbial loop paradigm is a gross simplification of microbial interactions due to the presence of mixotrophs—organisms that both photosynthesize and graze. We present a simple food web model with four trophic...
Authors
Christian Jost, Cathryn A. Lawrence, Francesca Campolongo, van de Bund Wouter, Sheryl Hill, Donald L. DeAngelis
Testing hypotheses for excess flower production and low fruit-to-flower ratios in a pollinating seed-consuming mutualism Testing hypotheses for excess flower production and low fruit-to-flower ratios in a pollinating seed-consuming mutualism
Pollinator attraction, pollen limitation, resource limitation, pollen donation and selective fruit abortion have all been proposed as processes explaining why hermaphroditic plants commonly produce many more flowers than mature fruit. We conducted a series of experiments in Arizona to investigate low fruit-to-flower ratios in senita cacti, which rely exclusively on pollinating seed...
Authors
J. Nathaniel Holland, Judith L. Bronstein, Donald L. DeAngelis
Evaluation of and insights from ALFISH: a spatially explicit landscape-level simulation of fish populations in the Everglades Evaluation of and insights from ALFISH: a spatially explicit landscape-level simulation of fish populations in the Everglades
We present an evaluation of a spatially explicit, age-structured model created to assess fish density dynamics in the Florida Everglades area. This model, ALFISH, has been used to compare alternative management scenarios for the Florida Everglades region. This area is characterized by periodic dry downs and refloodings. ALFISH uses spatially explicit water depth data to predict patterns...
Authors
Holly Gaff, John Chick, Joel Trexler, Donald L. DeAngelis, Louis Gross, Rene Salinas
Dynamic consequences of allochthonous nutrient input into freshwater systems Dynamic consequences of allochthonous nutrient input into freshwater systems
Abstract not supplied at this time
Authors
D.L. DeAngelis, P. J. Mulholland
Spatial decision support systems for landscape ecological evaluations in the Southwest Florida Feasibility Study Spatial decision support systems for landscape ecological evaluations in the Southwest Florida Feasibility Study
No abstract available.
Authors
Donald L. DeAngelis, Leonard Pearlstine, Frank J. Mazzotti, Tomma Barnes, Michael Duever, Janet Starnes
Overview: Cross-habitat flux of nutrients and detritus Overview: Cross-habitat flux of nutrients and detritus
Ecologists have long known that all ecosystems receive considerable quantities of materials from outside their boundaries (e.g., Elton 1927), and quantifying the magnitude of such fluxes has long been a central tenet of ecosystem ecology (e.g., Odum 1971). Thus, one might think that the consequences of such fluxes for food webs would be well understood. However, food webs have...
Authors
M.J. Vanni, D.L. DeAngelis, D.E. Schindler, G.R. Huxel
Science and Products
Filter Total Items: 195
The effects of mixotrophy on the stability and dynamics of a simple planktonic food web The effects of mixotrophy on the stability and dynamics of a simple planktonic food web
Recognition of the microbial loop as an important part of aquatic ecosystems disrupted the notion of simple linear food chains. However, current research suggests that even the microbial loop paradigm is a gross simplification of microbial interactions due to the presence of mixotrophs—organisms that both photosynthesize and graze. We present a simple food web model with four trophic...
Authors
Christian Jost, Cathryn A. Lawrence, Francesca Campolongo, van de Bund Wouter, Sheryl Hill, Donald L. DeAngelis
Testing hypotheses for excess flower production and low fruit-to-flower ratios in a pollinating seed-consuming mutualism Testing hypotheses for excess flower production and low fruit-to-flower ratios in a pollinating seed-consuming mutualism
Pollinator attraction, pollen limitation, resource limitation, pollen donation and selective fruit abortion have all been proposed as processes explaining why hermaphroditic plants commonly produce many more flowers than mature fruit. We conducted a series of experiments in Arizona to investigate low fruit-to-flower ratios in senita cacti, which rely exclusively on pollinating seed...
Authors
J. Nathaniel Holland, Judith L. Bronstein, Donald L. DeAngelis
Evaluation of and insights from ALFISH: a spatially explicit landscape-level simulation of fish populations in the Everglades Evaluation of and insights from ALFISH: a spatially explicit landscape-level simulation of fish populations in the Everglades
We present an evaluation of a spatially explicit, age-structured model created to assess fish density dynamics in the Florida Everglades area. This model, ALFISH, has been used to compare alternative management scenarios for the Florida Everglades region. This area is characterized by periodic dry downs and refloodings. ALFISH uses spatially explicit water depth data to predict patterns...
Authors
Holly Gaff, John Chick, Joel Trexler, Donald L. DeAngelis, Louis Gross, Rene Salinas
Dynamic consequences of allochthonous nutrient input into freshwater systems Dynamic consequences of allochthonous nutrient input into freshwater systems
Abstract not supplied at this time
Authors
D.L. DeAngelis, P. J. Mulholland
Spatial decision support systems for landscape ecological evaluations in the Southwest Florida Feasibility Study Spatial decision support systems for landscape ecological evaluations in the Southwest Florida Feasibility Study
No abstract available.
Authors
Donald L. DeAngelis, Leonard Pearlstine, Frank J. Mazzotti, Tomma Barnes, Michael Duever, Janet Starnes
Overview: Cross-habitat flux of nutrients and detritus Overview: Cross-habitat flux of nutrients and detritus
Ecologists have long known that all ecosystems receive considerable quantities of materials from outside their boundaries (e.g., Elton 1927), and quantifying the magnitude of such fluxes has long been a central tenet of ecosystem ecology (e.g., Odum 1971). Thus, one might think that the consequences of such fluxes for food webs would be well understood. However, food webs have...
Authors
M.J. Vanni, D.L. DeAngelis, D.E. Schindler, G.R. Huxel