Determinants and patterns of population growth in water hyacinth
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522, more
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| Keywords |
Aquatic weed control
Aquatic weeds
Control > Pest control > Weed control
Growth rate
Numerical models
Nutrients (mineral)
Population characteristics
Properties > Physical properties > Thermodynamic properties > Temperature
Spermatophyta > Angiosperms > Monocotyledons > Liliales > Liliaceae > Hyacinthus
Spermatophyta > Angiosperms > Monocotyledons > Liliales > Pontederiaceae > Eichhornia
Weed control
Weed control
Eichhornia crassipes (Mart.) Solms [WoRMS]
Marine/Coastal |
| Author keywords |
water hyacinth; Eichhornia crassipes; logistic growth; weed populationdynamics |
| Authors | | Top |
- Wilson, J.R.
- Holst, N.
- Rees, M.
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| Abstract |
Mathematical models of the growth of water hyacinth are developed to provide a sound basis for assessing existing and potential control options. We show that under constant experimental conditions, water hyacinth shows logistic growth (r2 of 0.69-1.00). The effects of nutrients and temperature on model parameters are explored using data from the literature. The model is verified against growth in a natural infestation. The resulting model incorporates two of the most important factors (temperature and water nutrient level) that determine whether water hyacinth is an important environmental problem at a given site. These relationships form a robust basis for further model development, and can be readily used to evaluate how the plant will respond to changes in nutrient inputs. |
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