A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Role of Mixotrophy in Southern Ocean Ecosystems
The Sensitivity of Model Dynamics to the Magnitude and Form of Mixotroph Interactions Between Plankton
Abstract We investigate the influence of mixotrophy on the dynamical properties of a six-population model of a three–trophic level Southern Ocean ecosystem. We find that including mixotrophic interactions between the lowest trophic level populations can significantly influence the dynamics of the highest trophic level populations, and in extreme cases lead to extinctions. Significantly, not only is the strength of the mixotrophic interaction important, it matters how it is included in the model, as a specialist or generalist grazer. We note in particular that the generalist formulation is inappropriate for “green” mixotrophs that fuel the majority of their growth by photosynthesis. The model can have complicated dynamics when subject to large amplitude, regular forcing, suggesting the sea ice—salps link may be obfuscated by endogenous population oscillations. Further, we observe that constructing the model within the Conservative Normal framework allows insights into the bifurcation behaviour of the model.
The Role of Mixotrophy in Southern Ocean Ecosystems
The Sensitivity of Model Dynamics to the Magnitude and Form of Mixotroph Interactions Between Plankton
Abstract We investigate the influence of mixotrophy on the dynamical properties of a six-population model of a three–trophic level Southern Ocean ecosystem. We find that including mixotrophic interactions between the lowest trophic level populations can significantly influence the dynamics of the highest trophic level populations, and in extreme cases lead to extinctions. Significantly, not only is the strength of the mixotrophic interaction important, it matters how it is included in the model, as a specialist or generalist grazer. We note in particular that the generalist formulation is inappropriate for “green” mixotrophs that fuel the majority of their growth by photosynthesis. The model can have complicated dynamics when subject to large amplitude, regular forcing, suggesting the sea ice—salps link may be obfuscated by endogenous population oscillations. Further, we observe that constructing the model within the Conservative Normal framework allows insights into the bifurcation behaviour of the model.
The Role of Mixotrophy in Southern Ocean Ecosystems
The Sensitivity of Model Dynamics to the Magnitude and Form of Mixotroph Interactions Between Plankton
Norbury, John (author) / Moroz, Irene M. (author) / Cropp, Roger (author)
Environmental Modeling & Assessment ; 24 ; 421-435
2019-05-31
15 pages
Article (Journal)
Electronic Resource
English
The Role of Mixotrophy in Southern Ocean Ecosystems
| Online Contents | 2019
Mixotrophy of Algae: More Algal Biomass and More Biofertilization for Plants
| DOAJ | 2023
Temperature-Dependent Mixotrophy in Natural Populations of the Toxic Dinoflagellate Karenia brevis
| DOAJ | 2024
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification?
| DOAJ | 2016
The diversity of Southern African mountain ecosystems
| British Library Conference Proceedings | 1999