6533b7d8fe1ef96bd126b67d
RESEARCH PRODUCT
The Coexistence of Three Species of Daphnia in the Klostersee: iii. The Simulation Model Coda
A. Seitzsubject
Algorithmic languageeducation.field_of_studybiologyEcologyPopulationbiology.organism_classificationDaphniaCodaAbundance (ecology)Fish <Actinopterygii>Size selectiveeducationBiological systemDiel vertical migrationdescription
The population dynamics of three coexisting Daphnia species are described by means of a discrete event simulation model. The model is formulated in the algorithmic language SIMULA which allows very convenient object-oriented programming. Different compartments of a lake are simulated at different levels of integration, each represented by a PROCESS CLASS in SIMULA: The properties of the lake are deposited in a set of meteorological data which were measured in the field. Fish are simulated as a population with properties which are derived from field observations and Daphnia are represented as individuals. The model shows that hypotheses about the stabilizing mechanisms (seasonal change of environmental conditions, vertical migration of Daphnia, size selective and abundance dependent feeding of planktivorous fish) of the coexistence of the Daphnia species are sufficient to explain the stable coexistence observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-01-01 |